Eurotherm Invensys 3216 User manual

Models 3216, 3208 and 3204
Process Controller
User Manual
Part No HA028651_15
Date December 2015

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3200 Series User Manual
1Part No HA028651 Issue 15.0 CN33995 Dec-15
3200 Series PID Temperature Controllers
User Manual Part Number HA028651 Issue 15.0 December 15
Includes 3216, 3208, 32h8 and 3204 Controllers.
Contents
2. Installation and Basic Operation ....................................................................................................... 6
2.1 What Instrument Do I Have? ..............................................................................................................................6
2.2 Unpacking Your Controller.................................................................................................................................6
2.3 Dimensions ........................................................................................................................................................6
2.4 Step 1: Installation ............................................................................................................................................7
2.4.1 Panel Mounting the Controller.........................................................................................................................................................................7
2.4.2 Panel Cut Out Sizes..............................................................................................................................................................................................7
2.4.3 Recommended minimum spacing of controllers........................................................................................................................................7
2.4.4 To Remove the Controller from its Sleeve ...................................................................................................................................................7
2.5 Order Code ........................................................................................................................................................8
3. Step 2: Wiring .................................................................................................................................. 9
3.1 Terminal Layout 3216 Controller ........................................................................................................................9
3.2 Terminal Layout 32h8 Controllers.......................................................................................................................10
3.3 Terminal Layout 3208 and 3204 Controllers ........................................................................................................11
3.4 Wire Sizes ..........................................................................................................................................................12
3.5 Precautions ........................................................................................................................................................12
3.6 Sensor Input (Measuring Input)..........................................................................................................................12
3.6.1 Thermocouple Input............................................................................................................................................................................................12
3.6.2 RTD Input................................................................................................................................................................................................................12
3.6.3 Linear Input (mA or mV)....................................................................................................................................................................................12
3.6.4 Two-Wire Transmitter Inputs............................................................................................................................................................................12
3.7 Input/Output 1 & Output 2.................................................................................................................................13
3.7.1 Relay Output (Form A, normally open) .........................................................................................................................................................13
3.7.2 Logic (SSR drive) Output....................................................................................................................................................................................13
3.7.3 DC Output ..............................................................................................................................................................................................................13
3.7.4 Triac Output...........................................................................................................................................................................................................13
3.7.5 Logic Contact Closure Input (I/O 1 only) ......................................................................................................................................................13
3.8 Remote Setpoint Input.......................................................................................................................................13
3.9 Output 3 ............................................................................................................................................................13
3.10 Summary of DC Outputs ....................................................................................................................................13
3.11 Output 4 (AA Relay)...........................................................................................................................................14
3.12 General Note About Relays and Inductive Loads ................................................................................................14
3.13 Digital Inputs A & B............................................................................................................................................14
3.14 Current Transformer ..........................................................................................................................................14
3.15 Transmitter Power Supply ..................................................................................................................................14
3.16 Digital Communications .....................................................................................................................................15
3.17 Controller Power Supply ....................................................................................................................................16
3.18 Example Heat/Cool Wiring Diagram ...................................................................................................................16
3.18.1 Example CT Wiring Diagram........................................................................................................................................................................16
4. Safety and EMC Information ............................................................................................................. 17
4.1 Installation Safety Requirements........................................................................................................................17
5. Switch On.......................................................................................................................................... 19
5.1 New Controller ..................................................................................................................................................19
5.1.1 Quick Start Code ..................................................................................................................................................................................................19
5.2 To Re-Enter Quick Code mode............................................................................................................................20
5.3 Pre-Configured Controller or Subsequent Starts.................................................................................................20
5.4 Front Panel Layout.............................................................................................................................................21
5.4.1 To Set The Target Temperature.......................................................................................................................................................................21
5.4.2 Alarms......................................................................................................................................................................................................................21
5.4.3 Alarm Indication ...................................................................................................................................................................................................21
5.4.4 Auto, Manual and Off Mode.............................................................................................................................................................................22
5.4.5 To Select Auto, Manual or Off Mode.............................................................................................................................................................22
5.4.6 Level 1 Operator Parameters ............................................................................................................................................................................23

User Manual 3200 Series
2Part No HA028651 Issue 15.0 Dec-15
6. Operator Level 2................................................................................................................................23
6.1 To Enter Level 2 .................................................................................................................................................23
6.2 To Return to Level 1...........................................................................................................................................23
6.3 Level 2 Parameters.............................................................................................................................................23
6.4 Timer Operation.................................................................................................................................................27
6.5 Dwell Timer .......................................................................................................................................................27
6.6 Delayed Timer....................................................................................................................................................28
6.7 Soft Start Timer .................................................................................................................................................29
6.8 To Operate a Timer............................................................................................................................................29
6.9 Programmer.......................................................................................................................................................30
6.9.1 To Set Up a Temperature Profile .................................................................................................................................................................... 31
6.9.2 Programmer Servo Mode and Power Cycling.............................................................................................................................................. 32
6.9.3 To Operate the Programmer............................................................................................................................................................................ 32
7. Access to Further Parameters............................................................................................................33
7.1 Parameter Levels................................................................................................................................................33
7.1.1 Level 3..................................................................................................................................................................................................................... 33
7.1.2 Configuration Level............................................................................................................................................................................................. 33
7.1.3 To Select Access Level 3 or Configuration Level ........................................................................................................................................ 34
7.2 Parameter lists...................................................................................................................................................35
7.2.1 To Choose Parameter List Headers................................................................................................................................................................. 35
7.2.2 To Locate a Parameter ....................................................................................................................................................................................... 35
7.2.3 How Parameters are Displayed........................................................................................................................................................................ 35
7.2.4 To Change a Parameter Value ......................................................................................................................................................................... 35
7.2.5 To Return to the HOME Display...................................................................................................................................................................... 35
7.2.6 Time Out ................................................................................................................................................................................................................ 35
7.3 Navigation Diagram ...........................................................................................................................................36
7.4 Access Parameters .............................................................................................................................................37
8. Controller Block Diagram .................................................................................................................. 39
9. Temperature (or Process) Input......................................................................................................... 40
9.1 Process Input Parameters...................................................................................................................................40
9.1.1 Input Types and Ranges..................................................................................................................................................................................... 41
9.1.2 Operation of Sensor Break ............................................................................................................................................................................... 42
9.2 PV Offset ...........................................................................................................................................................43
9.2.1 Example: To Apply an Offset:-........................................................................................................................................................................ 43
9.3 PV Input Scaling.................................................................................................................................................43
9.3.1 Example: To Scale a Linear Input................................................................................................................................................................... 43
10. Input/Output .....................................................................................................................................44
10.1 Input/Output Parameters ...................................................................................................................................45
10.1.1 Input/Output 1 List (IO-1).......................................................................................................................................................................... 45
10.1.2 Remote Digital Setpoint Select and Remote Fail.................................................................................................................................. 47
10.1.3 Sense ................................................................................................................................................................................................................. 47
10.1.4 Source ............................................................................................................................................................................................................... 47
10.1.5 Power Fail......................................................................................................................................................................................................... 47
10.1.6 Example: To Configure IO-1 Relay to Operate on Alarms 1 and 2:-.............................................................................................. 47
10.1.7 Output List 2 (OP-2) .................................................................................................................................................................................... 48
10.1.8 Output List 3 (OP-3) .................................................................................................................................................................................... 49
10.1.9 AA Relay (AA) (Output 4) .......................................................................................................................................................................... 50
10.1.10 Digital Input Parameters.............................................................................................................................................................................. 51
10.2 Current Transformer Input Parameters ..............................................................................................................52
10.2.1 Analogue Representation of Current Alarms ........................................................................................................................................ 52
11. Setpoint Generator ............................................................................................................................ 53
11.1 Setpoint Parameters...........................................................................................................................................53
11.2 Example: To Adjust Setpoint Rate Limit.............................................................................................................54
12. Control ..............................................................................................................................................55
12.1 Types of Control ................................................................................................................................................55
12.1.1 On/Off Control............................................................................................................................................................................................... 55
12.1.2 PID Control...................................................................................................................................................................................................... 55
12.1.3 Motorised Valve Control ............................................................................................................................................................................. 56
12.1.3.1 Motorised Valve Control in Manual mode............................................................................................................................................. 56
12.2 Control Parameters............................................................................................................................................57
12.2.1 Proportional Band ‘PB’ ................................................................................................................................................................................. 59
12.2.2 Integral Term ‘TI’ ........................................................................................................................................................................................... 59
12.2.3 Derivative Term ‘TD’ ..................................................................................................................................................................................... 60

3200 Series User Manual
Part No HA028651 Issue 15.0 Dec-15 3
12.2.4 Relative Cool Gain ‘R2G’...............................................................................................................................................................................60
12.2.5 High and Low Cutback..................................................................................................................................................................................61
12.2.6 Manual Reset ...................................................................................................................................................................................................61
12.2.7 Control Action.................................................................................................................................................................................................61
12.2.8 Loop Break .......................................................................................................................................................................................................61
12.2.9 Cooling Algorithm..........................................................................................................................................................................................61
12.3 Tuning................................................................................................................................................................62
12.3.1 Loop Response................................................................................................................................................................................................62
12.3.2 Initial Settings ..................................................................................................................................................................................................62
12.3.3 Automatic Tuning...........................................................................................................................................................................................64
12.3.4 To Start Autotune ..........................................................................................................................................................................................64
12.3.5 Autotune from Below SP – Heat/Cool .....................................................................................................................................................65
12.3.6 Autotune From Below SP – Heat Only.....................................................................................................................................................66
12.3.7 Autotune at Setpoint – Heat/Cool ............................................................................................................................................................67
12.3.8 Manual Tuning ................................................................................................................................................................................................68
12.3.9 Manually Setting Relative Cool Gain.........................................................................................................................................................68
12.3.10 Manually Setting the Cutback Values.......................................................................................................................................................69
12.4 Auto-tune Configures R2G..................................................................................................................................70
12.5 Example: To Configure Heating and Cooling .....................................................................................................71
12.5.1 Effect of Control Action, Hysteresis and Deadband.............................................................................................................................72
13. Alarms............................................................................................................................................... 73
13.1 Types of Alarm...................................................................................................................................................73
13.1.1 Alarm Relay Output.......................................................................................................................................................................................75
13.1.2 Alarm Indication .............................................................................................................................................................................................75
13.1.3 To Acknowledge An Alarm..........................................................................................................................................................................75
13.2 Behaviour of Alarms After a Power Cycle...........................................................................................................76
13.2.1 Example 1 .........................................................................................................................................................................................................76
13.2.2 Example 2 .........................................................................................................................................................................................................76
13.2.3 Example 3 .........................................................................................................................................................................................................76
13.3 Alarm Parameters ..............................................................................................................................................77
13.3.1 Example: To Configure Alarm 1................................................................................................................................................................78
13.4 Diagnostic Alarms ..............................................................................................................................................79
13.4.1 Out of Range Indication ...............................................................................................................................................................................79
14. Timer/Programmer............................................................................................................................ 80
14.1 Timer Configuration Parameters ........................................................................................................................80
14.2 Programmer.......................................................................................................................................................82
14.2.1 Threshold..........................................................................................................................................................................................................82
14.2.2 Run/End Digital Outputs...............................................................................................................................................................................83
14.2.3 Event Output During a Segment................................................................................................................................................................83
14.2.4 To Configure the Programmer ...................................................................................................................................................................84
14.3 Example: To Configure a Dwell Timer as a Simple Two Step Programmer...........................................................85
15. Recipe ............................................................................................................................................... 88
15.1 To Save Values in a Recipe.................................................................................................................................88
15.2 To Save Values in a Second Recipe.....................................................................................................................88
15.3 To Select a Recipe to Run ..................................................................................................................................89
15.3.1 List of Default Recipe Parameters: ............................................................................................................................................................89
16. Digital Communications .................................................................................................................... 90
16.1 Digital Communications Wiring..........................................................................................................................90
16.1.1 EIA232................................................................................................................................................................................................................90
16.1.2 EIA485 (2-wire)................................................................................................................................................................................................90
16.1.3 Wiring EIA422 or 4-wire EIA485.................................................................................................................................................................90
16.2 Digital Communications Parameters...................................................................................................................91
16.2.1 Broadcast Communications.........................................................................................................................................................................92
16.2.2 Broadcast Master Communications ..........................................................................................................................................................92
16.2.3 Wiring Connections .......................................................................................................................................................................................92
16.3 EEPROM Write Cycles.........................................................................................................................................93
16.4 Example: To Set Up Instrument Address.............................................................................................................94
16.5 DATA ENCODING ...............................................................................................................................................94
16.6 Parameter Modbus Addresses ............................................................................................................................95
17. Calibration ........................................................................................................................................ 105
17.1 To Check Input Calibration ................................................................................................................................105
17.1.1 Precautions.......................................................................................................................................................................................................105
17.1.2 To Check mV Input Calibration..................................................................................................................................................................105

User Manual 3200 Series
4Part No HA028651 Issue 15.0 Dec-15
17.1.3 To Check Thermocouple Input Calibration............................................................................................................................................ 105
17.1.4 To Check RTD Input Calibration................................................................................................................................................................ 106
17.2 Offsets ...............................................................................................................................................................106
17.2.1 Two Point Offset............................................................................................................................................................................................ 106
17.2.2 To Apply a Two Point Offset ...................................................................................................................................................................... 107
17.2.3 To Remove the Two Point Offset.............................................................................................................................................................. 107
17.3 Input Calibration................................................................................................................................................108
17.3.1 To Calibrate mV Input.................................................................................................................................................................................. 108
17.3.2 To Calibrate Thermocouple Input ............................................................................................................................................................ 109
17.3.3 To Calibrate RTD Input ................................................................................................................................................................................ 110
17.3.4 To Calibrate mA Outputs ............................................................................................................................................................................ 111
17.3.5 To Calibrate Remote Setpoint Input........................................................................................................................................................ 112
17.3.6 CT Calibration................................................................................................................................................................................................. 113
17.3.7 To Return to Factory Calibration .............................................................................................................................................................. 113
17.4 Calibration Parameters ......................................................................................................................................114
18. Configuration Using iTools ................................................................................................................115
18.1 Loading an IDM..................................................................................................................................................115
18.2 Connecting a PC to the Controller .....................................................................................................................115
18.2.1 Using the H Communications Port ........................................................................................................................................................... 115
18.2.2 Configuration Clip ......................................................................................................................................................................................... 115
18.3 Starting iTools....................................................................................................................................................116
18.4 Starting the Wizard............................................................................................................................................117
18.5 To configure the Input.......................................................................................................................................118
18.5.1 Example 1 - Using the Wizard.................................................................................................................................................................... 118
18.5.2 Example 2 – Using the Browser View ...................................................................................................................................................... 118
18.6 To Configure Alarms ..........................................................................................................................................119
18.6.1 Example 1: Using the Wizard..................................................................................................................................................................... 119
18.6.2 Example 2: Using the Browser View......................................................................................................................................................... 119
18.7 To Customise Messages......................................................................................................................................120
18.7.1 Example 1: Using the Wizard..................................................................................................................................................................... 120
18.7.2 Example 2: Using the Browser View........................................................................................................................................................ 121
18.7.3 Example 3: Inverted Status Word ............................................................................................................................................................ 122
18.7.4 Example 4: Display the message ‘OUT OF CONTROL’ if both Alarm 1 and Alarm 2 are active. ........................................... 123
18.8 To Promote Parameters......................................................................................................................................124
18.8.1 Example 1: Using the Wizard..................................................................................................................................................................... 124
18.8.2 Example 2: Using the Browser view ........................................................................................................................................................ 125
18.9 To Load A Special Linearisation Table ................................................................................................................126
18.9.1 Example: Using the Browser view............................................................................................................................................................ 126
18.10 To Set up Recipes ..........................................................................................................................................127
18.10.1 Example 1: Using the Browser view ........................................................................................................................................................ 127
18.10.2 Example 2: Using the Wizard..................................................................................................................................................................... 128
18.10.2.1 Recipe Definition ..................................................................................................................................................................................... 128
18.10.2.2 Editing Recipe Values ............................................................................................................................................................................. 129
18.10.2.3 Recipe Names........................................................................................................................................................................................... 129
18.11 Summary .......................................................................................................................................................130
18.11.1 Example 1: Using the Wizard..................................................................................................................................................................... 130
18.11.2 Example 2: Using the browser view. ....................................................................................................................................................... 130
18.12 Cloning..........................................................................................................................................................131
18.12.1 Save to File ...................................................................................................................................................................................................... 131
18.12.2 To Clone a New Controller......................................................................................................................................................................... 131
19. Appendix A TECHNICAL SPECIFICATION ..........................................................................................132
20. Parameter Index ................................................................................................................................134
21. Index..................................................................................................................................................136

3200 Series User Manual
Part No HA028651 Issue 15.0 Dec-15 5
Issue Status of this Manual
Issue 5of this Handbook applies to software versions 2.09 and above for PID controller and 2.29 and above for Valve
Position controllers and includes:-
•Remote Setpoint Input Option RCL
•Programmer Cycles
•Triac output
•EIA422 4-wire Digital Communications, Option 6XX available in 3216 only
It also applies to firmware versions 2.11 and includes new parameters:-
Inverted status word, section 17.7.3.
Rate of change alarms, section 12.3.
Setpoint retransmission limits, section 10.1.
Input filter, section 8.1.
Note:-
The 3116 controller is no longer available. Details may be found in issue 4 of this manual.
Issue 6 includes parameter ‘AT.R2G’, section 11.4.
Issue 7 corrects range limits in section 8.1.1. Change to definition of LOC.T. in section 10.1.Correct description of
enumerations for parameter IM section 15.6.
Issue 8 includes the following changes:
The description of the Programmer in sections 5.9 and 13.2.
A more detailed description of loop tuning.
Updates to Appendix A, Technical Specification.
Issue 9 includes the following changes:
Clarification of order codes for isolated and non- isolated outputs in appropriate sections
Add Tune Hi and Tune Lo limit parameters to the Control table in section 11.2.
Issue 10 applies to software versions 2.13 for PID controllers and 2.32 for Valve Position controllers and includes the
following changes:
Warning added to section 15.1.3. ref number of writes to EEPROM.
Notes column in section 13.2.4. - changes to the resolution of Dwell units and Ramp Rate refers to section 10.1.
Sections 2.8 and 4.4.3. clarify remote setpoint operation.
Issue 11 corrects instruction 3) in section 11.4; adds Certificate of Conformity; adds a new section 15.3 EEPROM Write
Cycles; update DIN3440 to EN14597TR in the Approvals section 18.
Issue 12 corrects the note (2) in section 2.1 to EIA422 and deletes the corresponding statement in section 2.14. Contact
resistance ratings changed in section 2.13.
Issue 13 changes panel sealing ratings in the Specification section. Remove Declaration of Conformity.
Issue 14update to Safety and EMC section. Add NEMA12 to Specification.
Issue 15 corrects the terminal numbering in section 16.3.5. Timer Status description updated to be the same as the
iTools Help and improves the descrption of the timer when used as a programmer.

User Manual 3200 Series
6Part No HA028651 Issue 15.0 Dec-15
1. Installation and Basic Operation
1.1 What Instrument Do I Have?
Thank you for choosing this 3200 series Temperature
Controller/Programmer.
The 3200 series provide precise temperature control of
industrial processes and is available in three standard
DIN sizes:-
•1/16 DIN Model Number 3216
•1/8 DIN Model Number 3208
•1/8 DIN Horizontal Model Number 32h8
•1/4 DIN Model Number 3204
A universal input accepts various thermocouples, RTDs or
process inputs. Up to three (3216) or four (3208, 32h8
and 3204) outputs can be configured for control, alarm
or re-transmission purposes. Digital communications and
a current transformer input are available as options.
The controller may have been ordered to a hardware
code only or pre-configured using an optional ‘Quick
Start’ code.
The label fitted to the side of the sleeve shows the
ordering code that the controller was supplied to.
The last two sets of five digits show the Quick Start Code.
If the Quick Start Code shows *****/***** the controller
was supplied with default parameters and will need to be
configured when it is first switched on.
This Manual takes you through all aspects of installation,
wiring, configuration and use of the controller.
1.2 Unpacking Your Controller
The controller is supplied with:-
•Sleeve (with the controller fitted in the sleeve)
•Two panel retaining clips and IP65 sealing gasket
mounted on the sleeve
•Component packet containing a snubber for each
relay output (see section 2.12) and a 2.49Ωresistor
for current inputs (see section 2.6)
•Installation sheet Part Number HA029714
1.3 Dimensions
General views of the controllers are shown below
together with overall dimensions.
3216
3208, 32h8 and 3204
Panel retaining clip
90mm (3.54in)
Top View
Label showing
Order Code
Serial Number
including date of
manufacture
90mm (3.54in)
IP65 Sealing Gasket
Latching
ears
Side View
Latching
ears
96mm
(3.78in)
48mm
(1.89in)
96mm (3.78in)
Front Views
48mm
(1.89in)
3208 3204
32h8
Front View
48mm
(1.89in)
48mm
(1.89in)
Side View
Panel retaining clips
IP65 Sealing Gasket
1.25mm
(0.5in)
Latching
ears

3200 Series User Manual
Part No HA028651 Issue 15.0 Dec-15 7
1.4 Step 1: Installation
This instrument is intended for permanent installation,
for indoor use only, and enclosed in an electrical panel
Select a location which is subject to minimum vibrations
the ambient temperature is within 0 and 55oC (32 -
131oF) and humidity 5 to 95% RH non condensing.
The instrument can be mounted on a panel up to 15mm
thick.
To ensure IP65 front protection, mount on a non-
textured surface using the gasket provided.
Please read the safety information in section 3 before
proceeding. The EMC Booklet part number HA025464
gives further installation information.
1.4.1 Panel Mounting the Controller
1. Prepare a cut-out in the mounting panel to the size
shown. If a number of controllers are to be mounted
in the same panel observe the minimum spacing
shown.
2. Fit the panel sealing gasket behind the front bezel of
the controller
3. Insert the controller through the cut-out
4. Spring the panel retaining clips into place. Secure
the controller in position by holding it level and
pushing both retaining clips forward.
5. Peel off the protective cover from the display.
1.4.2 Panel Cut Out Sizes
1.4.3 Recommended minimum spacing of
controllers
Applies to all models.
1.4.4 To Remove the Controller from its
Sleeve
The controller can be unplugged from its sleeve by
easing the latching ears outwards and pulling it forward
out of the sleeve. When plugging it back into its sleeve,
ensure that the latching ears click back into place to
maintain the IP65 sealing
45 mm
- 0.0 + 0.6
1.77 in
-0.00, +0.02
45 mm - 0.0 + 0.6
1.77 in -0.00, +0.02
92 mm
- 0.0 + 0.8
3.62 in
-0.00, +0.03
92 mm - 0.0 + 0.8
3.62 in -0.00, +0.03
Model 3216
Model 3208
Model 3204
Model 32h8
10mm (0.4 in)
38mm (1.5 in)
(Not to scale)

User Manual 3200 Series
8Part No HA028651 Issue 15.0 Dec-15
1.5 Order Code
1 2 3 4 5 6 7 8 9 10 11 12 13 14
6. Options
Not fitted XXX
EIA485 & Digital input A 4XL*
EIA232 & Digital input A 2XL*
EIA485, CT & Dig in A 4CL
EIA232, CT & Dig in A 2CL
Digital input A XXL*
CT & Digital input A XCL
Remote SP and Logic IP RCL
4-wire EIA485 (EIA422)
Comms (3216 only)
6XX
* 3216 only
3. Power Supply
24Vac/dc VL
100–230Vac VH
7. Fascia colour/type
Green G
Silver S
Wash down fascia
(not 32h8/04)
W
10. Extended Warranty
Standard XXXXX
Extended WL005
11. Certificates
XXXXX None
Cert of conformity CERT1
Factory calibration CERT2
12. Custom Label
None XXXXX
13. Specials Number
None XXXXXX
250Ω; 0-5Vdc OP RES250
500Ω; 0-10Vdc OP RES500
2. Function
Controller CC
Programmer CP
valve controller VC
Valve programmer VP
5. AA Relay (OP4)
Disabled X
Relay (Form C) R
1. Model No.
1/16 DIN size 3216
1/8 DIN size vertical 3208
1/8 DIN horizontal 32h8
1/4 DIN size 3204
8/9 Product/Manual Language
English ENG
French FRA
German GER
Italian ITA
Spanish SPA
4. Outputs 1, 2 and 3 3208/H8/04
OP1 OP2 OP3
L R R X
R R R X
L L R X
L R D X
R R D X
D D D X
L L D X
L D D X
D R D X
Not available with low voltage
supply option.
L T R X
T T R X
L T D X
T D D X
T T D X
L = Logic
R = Relay
T = Triac
D = 0-20mA non-isolated outputs 1
and 2
D = 0-20mA isolated output 3
4. Output 1 & 2 3216
OP1 OP2
L X X X
L R X X
R R X X
L L X X
L D X X
D D X X
D R X X
R C X X
L C X X
D C X X
Not available with low voltage
supply option.
L T X X
T T X X
L = Logic
R = Relay
T = Triac
D = 0-20mA non-isolated
C = 0-20mA isolated

3200 Series User Manual
Part No HA028651 Issue 15.0 Dec-15 9
2. Step 2: Wiring
2.1 Terminal Layout 3216 Controller
(1) If I/O 1 is fitted with a 0-20mA analogue output then this output is always non-isolated (order code D). Output 2 may
be fitted with an isolated 0-20mA output, order code C, or a non-isolated 0-20mA output, order code D.
(2) Option 6XX – EIA422 digital communications uses terminals C to HF. This means that the Current Transformer and
Digital Input A are not available if this option is fitted.
Key to symbols used in the wiring diagrams
Logic (SSR drive) output Relay output Contact input
mA analogue output Triac output Current transformer input
!
Ensure that you have the correct supply for your controller
Check order code of the instrument supplied
Digital Communications
EIA232, EIA485, or EIA422 (2) Or
Remote Setpoint IP
See section 2.8
Output 4 (AA Relay)
AA
AB
AC
VI
V+
V-
CT
C
LA
HD
HE
HF
COM
A(+)
B(-)
-
+
T/C
mV
-
Sensor
Input
Pt100
2.49Ω
mA
-
++
Line Supply 100 to 230Vac +/-15%
48 - 62Hz
OR
Low Voltage Supply 24Vac/dc
24Vac -15%, +10%. 48 – 62Hz
24Vdc -15%, +20%
Input/Output 1 (1)
Output 2
(1)
10V
Potential divider
module
Part No SUB21/IV10
-
+
10V
Input
+ +
--
+ +
--
1A
1B
2A
2B
L
N

User Manual 3200 Series
10 Part No HA028651 Issue 15.0 Dec-15
2.2 Terminal Layout 32h8 Controllers
Key to symbols used in the wiring diagrams
Logic (SSR drive) output Relay output Contact input
mA analogue output Triac output Current transformer input
!
Ensure that you have the correct supply for your controller
Check order code of the instrument supplied
-+ -+
-+ -+
-+
C NO C NOLine Supply 100 to 230Vac +/-15%
48 - 62Hz
OR
Low Voltage Supply 24Vac/dc
24Vac -15%, +10%. 48 – 62Hz
24Vdc -15%, +20%
10V Potential divider
module
Part No SUB21/IV10
- +
10V Input
Output
3
24V Transmitter Supply
AA Relay
(OP4)
B(-) A(+) COM
Digital Comms
Or
Remote Setpoint
Input
See section 2.8
- +
T/C
Sensor Input
Pt100
V- V+ VI LA C CT HF HE HD AC AB AA
N L 3D 3C 3B 3A LC LB 2B 2A 1B 1A
2.49Ω
mA/mV
+-
-
+
32h8 Controller
Dig in A CT input
Output
2
Input/
Output 1
Dig
in B
C NO

3200 Series User Manual
Part No HA028651 Issue 15.0 Dec-15 11
2.3 Terminal Layout 3208 and 3204 Controllers
(1) If I/0 1 or OP2 are fitted with a 0-20mA analogue output then these outputs are always non-isolated. If OP 2 is
fitted with a 0-20mA analogue output this output is isolated 240Vac. The order code D applies to isolated or
non-isolated outputs in 3208, 32h8 and 3204 instruments.
Key to symbols used in the wiring diagrams
Logic (SSR drive) output Relay output Contact input
mA analogue output
Triac output
Current transformer input
!
Ensure that you have the correct supply for your controller
Check order code of the instrument supplied
Digital Communications
EIA232 or EIA485
Or
Remote Setpoint Input See section 2.8
Output 4 (AA Relay)
Line Supply 100 to 230Vac +/-15%
48 - 62Hz
OR
Low Voltage Supply 24Vac/dc
24Vac -15%, +10%. 48 – 62Hz
24Vdc -15%, +20%
Input/Output 1 (1)
CT input
Digital input A
AA
AB
AC
HD
HE
HF
CT
C
LA
VI
V+
V-
1A
1B
2A
2B
LB
LC
3A
3B
3C
3D
L
N
COM
A(+)
B(-)
-
+
T/C
+
mV
-
PV Input
Pt100
2.49Ω
mA
-
+
+
-
+
24V
-
Output 2
(1)
Digital Input B
Output 3
(1)
24V Transducer Supply
10V
Potential divider
module
Part No
SUB21/IV10
-
+
10V
Input
+ +
--
+ +
--

User Manual 3200 Series
12 Part No HA028651 Issue 15.0 Dec-15
2.4 Wire Sizes
The screw terminals accept wire sizes from 0.5 to 1.5 mm
(16 to 22AWG). Hinged covers prevent hands or metal
making accidental contact with live wires. The rear
terminal screws should be tightened to 0.4Nm (3.5lb in).
2.5 Precautions
•Do not run input wires together with power cables
•When shielded cable is used, it should be grounded
at one point only
•Any external components (such as zener barriers,
etc) connected between sensor and input terminals
may cause errors in measurement due to excessive
and/or un-balanced line resistance or possible
leakage currents
•Not isolated from the logic outputs & digital inputs
•Pay attention to line resistance; a high line resistance
may cause measurement errors
2.6 Sensor Input (Measuring Input)
2.6.1 Thermocouple Input
Positive
Negative
•Use the correct compensating cable preferably
shielded
2.6.2 RTD Input
PRT
PRT
Lead compensation
•The resistance of the three wires must be the same.
The line resistance may cause errors if it is greater
than 22Ω
2.6.3 Linear Input (mA or mV)
•If shielded cable is used it should be grounded in
one place only as shown
•For a mA input connect the 2.49Ωburden resistor
supplied between the V+ and V- terminals as shown
•For a 0-10Vdc input an external input adapter is
required (not supplied). Part number: SUB21/IV10
Sensor break alarm does not operate with this adaptor
fitted.
2.6.4 Two-Wire Transmitter Inputs
100KΩ
806Ω
+
0-10V
Input
-
+
-
-
+
V+
V-
VI
V+
V-
-
2.49Ω
+
V+
V-
Shield
+
mA / mV input
-
Using internal 24V power supply (3208, 32h8 and 3204 only)
-
+
V+
V-
-
+
2-Wire
Transmitter
-
+
2.49Ω
3C
3D
Using external power supply
+
-
External power
supply
-
+
2-Wire
Transmitter
-
+
2.49Ω
V+
V-

3200 Series User Manual
Part No HA028651 Issue 15.0 Dec-15 13
2.7 Input/Output 1 & Output 2
These outputs can be logic (SSR drive), or relay, or mA
dc. In addition the logic output 1 can be used as a
contact closure input.
For input/output functions, see Quick Start Code in
section 4.1.1.
2.7.1 Relay Output (Form A, normally open)
•Isolated output 240Vac CAT II
•Contact rating: 2A 264Vac
resistive
2.7.2 Logic (SSR drive) Output
•Not isolated from the sensor
input
•Output ON state: 12Vdc at
40mA max
•Output OFF state: <300mV,
<100µA
•The output switching rate must be set to prevent
damage to the output device in use. See
parameter 1.PLS or 2.PLS in section 5.3.
2.7.3 DC Output
•Order code C (OP2 only) isolated 240Vac
•Order code D not isolated from the sensor input
•Software configurable: 0-20mA or 4-20mA.
•Max load resistance: 500Ω
•Calibration accuracy: +(<1% of reading + <100µA)
2.7.4 Triac Output
•Isolated output 240Vac CATII
•Rating: 0.75A rms, 30 to 264Vac resistive
2.7.5 Logic Contact Closure Input (I/O 1
only)
•Not isolated from the sensor input
•Switching: 12Vdc at 40mA max
•Contact open > 500Ω. Contact closed <
150Ω
2.8 Remote Setpoint Input
•There are two inputs; 4-20mA and
0-10 Volts which can be fitted in
place of digital communications
•It is not necessary to fit an external
burden resistor to the 4-20mA
input
•If the 4-20mA remote setpoint input is connected and
valid (>3.5mA; < 22mA) it will be used as the main
setpoint. If it is not valid or not connected the
controller will try to use the Volts input. Volts sensor
break occurs at <-1; >+11V. The two inputs are not
isolated from each other
•If neither remote input is valid the controller will fall
back to the internal setpoint, SP1 or SP2 and flash the
alarm beacon. The alarm can also be configured to
activate a relay (see section 12.1.1) or read over digital
communications.
•To calibrate the remote setpoint, if required, see
section 16.3.5
•A local SP trim value is available in access level 3 (see
section 10.1).
Note: If remote setpoint is configured ensure that the
remote input is connected or the relevant rear terminals
are linked. If the remote setpoint input is left open
circuit the alarm beacon will light.
2.9 Output 3
Output 3 is available only in the models 3208,
32h8 and 3204. It will be either a relay or a
mA output.
For output functions, see Quick Start Code in
section 4.1.1.
Relay Output (Form A, normally open)
Isolated output 240Vac CAT II
•Contact rating: 2A 264Vac resistive
DC Output
•Isolated output 240Vac CAT II
•Software configurable: 0-20mA or 4-
20mA
•Max load resistance: 500Ω
•Calibration accuracy: 0.5%, +100µA
2.10 Summary of DC Outputs
3216 3208 32h8 3204 Order
code
OP1 Non-isolated in all instruments D
OP2 Non-
isolated
Non-
isolated
Non-
isolated
Non-
isolated
D
Isolated C
OP3 Not
available
Isolated Isolated Isolated D
+
-
OP2
2A
2B
+
-
OP1
1A
1B
OP3
3A
3B
OP1
OP2
1A
1B
2A
2B
+
-
OP1
1A
1B
+
-
OP2
2A
2B
OP1
1A
1B
0-10 Volts
4-20 mA
Common
HD
HE
HF
+
-
OP3
3A
3B
1(2) A
1(2)B

User Manual 3200 Series
14 Part No HA028651 Issue 15.0 Dec-15
2.11 Output 4 (AA Relay)
Output 4 is a relay and optionally available in all models.
For output functions, see Quick Start Code in section
4.1.1.
Relay Output (Form C)
•Isolated output 240Vac CAT II
•Contact rating: 2A 264Vac resistive
2.12 General Note About Relays and
Inductive Loads
High voltage transients may occur when switching
inductive loads such as some contactors or solenoid
valves. Through the internal contacts, these transients
may introduce disturbances which could affect the
performance of the instrument.
For this type of load it is recommended that a ‘snubber’
is connected across the normally open contact of the
relay switching the load. The snubber recommended
consists of a series connected resistor/capacitor (typically
15nF/100Ω). A snubber will also prolong the life of the
relay contacts.
A snubber should also be connected across the output
terminal of a triac output to prevent false triggering
under line transient conditions.
WARNING
When the relay contact is open or it is connected to
a high impedance load, the snubber passes a current
(typically 0.6mA at 110Vac and 1.2mA at 240Vac).
You must ensure that this current will not hold on
low power electrical loads. If the load is of this type
the snubber should not be connected.
2.13 Digital Inputs A & B
Digital input A is an optional input in all 3200 series
controllers.Digital input B is always fitted in models
3208, 32h8 and 3204, but is not available in 3216.
•Not isolated from the current transformer input or
the sensor input
•Switching: 12Vdc at 40mA max
•Contact open > 600Ω. Contact closed < 300Ω
•Input functions: Please refer to the list in the quick
codes.
If EIA232 digital communications is fitted (3216
only), Digital Input A is not available.
2.14 Current Transformer
The current transformer input is an optional input in all
3200 series controllers.
It can be connected to monitor the rms current in an
electrical load and to provide load diagnostics. The
following fault conditions can be detected: SSR (solid
state relay) short circuit, heater open circuit and partial
load failure. These faults are displayed as alarm
messages on the controller front panel.
Note: C terminal is common to both the CT input and
Digital input A. They are, therefore, not isolated from
each other or the PV input.
•CT input current: 0-50mA rms (sine wave, calibrated)
50/60Hz
•A burden resistor, value 10Ω, is fitted inside the
controller.
•It is recommended that the current
transformer is fitted with a voltage
limiting device to prevent high voltage
transients if the controller is unplugged.
For example, two back to back zener diodes. The
zener voltage should be between 3 and 10V, rated
at 50mA.
•CT input resolution: 0.1A for scale up to 10A, 1A for
scale 11 to 100A
•CT input accuracy: +4% of reading.
2.15 Transmitter Power Supply
The Transmitter Supply is not available in the Model
3216. It is fitted as standard in the Models 3208, 32h8
and 3204.
•Isolated output 240Vac CAT II
•Output: 24Vdc, +/- 10%. 28mA max.
•inside the controller
Dig in A
C
LA
Dig in B
LB
LC
CT Input
CT
C
OP4
AA
AB
AC
24Vdc
Transmitter
Supply
3C
3D

3200 Series User Manual
Part No HA028651 Issue 15.0 Dec-15 15
2.16 Digital Communications
Optional.
Digital communications uses the Modbus protocol. The
interface may be ordered as EIA232 or EIA485 (2-wire).
In 3216 controllers only, EIA422 (4-wire) is available as
option 6XX.
Digital communications is not available if Remote
Setpoint is fitted
Cable screen should be grounded at one point only
to prevent earth loops.
•Isolated 240Vac CAT II.
EIA232 Connections
EIA485 Connections
EIA422 Connections (3216 only)
If EIA422 serial communications is fitted, the CT and
LA digital input option is not possible since EIA422 shares
the same terminals as the CT and LA.
The KD485 communications converter is
recommended for:
•Interfacing 4-wire to 2-wire connections.
•To buffer an EIA422/485 network when more than
32 instruments on the same bus are required
•To bridge 2-wire EIA485 to 4-wire EIA422.
Common
Rx A(+)
Tx B(-)
Screen
Local ground
Com
Rx
Tx
HD
HE
HF
220Ωtermination
resistor
* EIA232/EIA485 2-wire
communications converter
eg Type KD485
Daisy Chain to
further
controllers
Com
220Ωtermination
resistor on last
controller in the line
Twisted pair
Tx Rx Com
Rx Tx Com
Screen
RxB/
TxB
RxA/
TxA
*
Common
Rx A(+)
Tx B(-)
HD
HE
HF
Com
Tx
Com Rx Tx
Screen
no connection
Rx+
Rx-
Common
Tx+
Tx-
Daisy Chain
to further
controllers
Twised
pairs
220Ωtermination
resistor
220Ωtermination
resistor on last
controller in the line
EIA232 to EIA422/EIA485 4-
wire communications
converter
Eg Type KD485
RxB Com TxA
RxA TxB
Com Tx Rx
CT
C
LA
HD
HE
HF
Screen

User Manual 3200 Series
16 Part No HA028651 Issue 15.0 Dec-15
2.17 Controller Power Supply
1. Before connecting the instrument to the power line,
make sure that the line voltage corresponds to the
description on the identification label.
2. Use copper conductors only.
3. For 24V the polarity is not important
4. The power supply input is not fuse protected. This
should be provided externally
•High voltage supply: 100 to 230Vac, +/-15%,
48 to 62 Hz
•Low voltage supply: 24Vac/dc
24Vac -15%, +10%. 48 – 62Hz
24Vdc -15%, +20%
•Recommended external fuse ratings are as follows:-
For 24 V ac/dc, fuse type: T rated 2A 250V
For 100-240Vac, fuse type: T rated 2A 250V.
2.18 Example Heat/Cool Wiring
Diagram
This example shows a heat/cool temperature controller
where the heater control uses a SSR and the cooling
control uses a relay.
Safety requirements for permanently connected
equipment state:
•A switch or circuit breaker shall be included in the
building installation
•It shall be in close proximity to the equipment and
within easy reach of the operator
•It shall be marked as the disconnecting device for
the equipment
A single switch or circuit breaker can drive more
than one instrument
2.18.1 Example CT Wiring Diagram
This diagram shows an example of wiring for a CT input.
N
Heater
fuse
Relay
output
fuse
Controller fuse
Heater
T/C
Solid State
Relay
(e.g. TE10)
Snubber*
L
+
-
Cooling or
alarm relay
J
JF
B
CT
C
LA
HD
HE
HF
AA
AB
AC
VI
V+
V-
1A
1B
2A
2B
L
N
N
Heater fuse
Controller fuse
Heater
T/C
Solid State
Relay
(e.g. TE10)
L
+
-
J
J
B
3216
1A
1B
2A
2B
L
N
CT
C
LA
HD
HE
HF
AA
AB
AC
VI
V+
V-
L
N
Note: the burden resistor value 10Ωis
mounted inside the controller. It is
recommended that the current transformer
is fitted with a voltage limiting device such
as two back to back zener diodes between
3 and 10V and rated for 50mA.
Current Transformer
CT
Line
Neutral
Power Supply
L
N
24V
24V
Power Supply
24
24

3200 Series User Manual
Part No HA028651 Issue 15.0 Dec-15 17
3. Safety and EMC Information
This controller is intended for industrial temperature and
process control applications when it will meet the
requirements of the European Directives on Safety and
EMC. Use in other applications, or failure to observe the
installation instructions of this handbook may impair
safety or EMC. The installer must ensure the safety and
EMC of any particular installation.
Safety
This controller complies with the European Low Voltage
Directive 2006/95/EC by the application of the safety
standard EN 61010.
Electromagnetic compatibility
This controller conforms with the essential protection
requirements of the EMC Directive 2004/108/EC, by the
application of a Technical Construction File. This
instrument satisfies the general requirements of the
industrial environment defined in EN 61326. For more
information on product compliance refer to the
Technical Construction File.
GENERAL
The information contained in this manual is subject to
change without notice. While every effort has been
made to ensure the accuracy of the information, your
supplier shall not be held liable for errors contained
herein.
Unpacking and storage
The packaging should contain an instrument mounted in
its sleeve, two mounting brackets for panel installation
and an Installation & Operating guide. Certain ranges are
supplied with an input adapter.
If on receipt, the packaging or the instrument are
damaged, do not install the product but contact your
supplier. If the instrument is to be stored before use,
protect from humidity and dust in an ambient
temperature range of -30oC to +75oC.
SERVICE AND REPAIR
This controller has no user serviceable parts. Contact
your supplier for repair.
Caution: Charged capacitors
Before removing an instrument from its sleeve,
disconnect the supply and wait at least two minutes to
allow capacitors to discharge. It may be convenient to
partially withdraw the instrument from the sleeve, then
pause before completing the removal. In any case, avoid
touching the exposed electronics of an instrument when
withdrawing it from the sleeve.
Failure to observe these precautions may cause damage
to components of the instrument or some discomfort to
the user.
Electrostatic discharge precautions
When the controller is removed from its sleeve, some of
the exposed electronic components are vulnerable to
damage by electrostatic discharge from someone
handling the controller. To avoid this, before handling
the unplugged controller discharge yourself to ground.
Cleaning
Do not use water or water based products to clean labels
or they will become illegible. Isopropyl alcohol may be
used to clean labels. A mild soap solution may be used
to clean other exterior surfaces of the product.
3.1 Installation Safety Requirements
Symbols. If any of the symbols shown below are used
on the instrument they have the following meaning:
CCE Mark. WRefer to manual.
DRisk of electric shock.
OTake precautions against static ESD symbol.
4 5 Earth symbols.
PTCA-tick Australia (ACA) and New Zealand (RSM).
JDispose of properly
*China RoSH (Wheel) Logo.
sComplies with the RoHS2 (2011/65/EU) directive.
r Earlier RoHS symbol (RoSH1).
-Protected by DOUBLE INSULATION.
(LX cUL Mark.

Helpful hints in this manual
Personnel
Installation must only be carried out by suitably qualified
personnel in accordance with the instructions in this
handbook.
Enclosure of Live Parts
To prevent hands or metal tools touching parts that may
be electrically live, the controller must be enclosed in an
enclosure.
Caution: Live sensors
The controller is designed to operate if the temperature
sensor is connected directly to an electrical heating
element. However you must ensure that service
personnel do not touch connections to these inputs
while they are live. With a live sensor, all cables,
connectors and switches for connecting the sensor must
be mains rated.
Wiring
It is important to connect the controller in accordance
with the wiring data given in this guide. Take particular
care not to connect AC supplies to the low voltage
sensor input or other low level inputs and outputs. Only
use copper conductors for connections (except
thermocouple inputs) and ensure that the wiring of
installations comply with all local wiring regulations. For
example in the UK use the latest version of the IEE wiring
regulations, (BS7671). In the USA use NEC Class 1 wiring
methods.

User Manual 3200 Series
18 Part No HA028651 Issue 15.0 Dec-15
Power Isolation
The installation must include a power isolating switch or
circuit breaker. This device should be in close proximity to
the controller, within easy reach of the operator and marked
as the disconnecting device for the instrument.
Overcurrent protection
The power supply to the system should be fused
appropriately to protect the cabling to the units.
Voltage rating
The maximum continuous voltage applied between any
of the following terminals must not exceed 240Vac:
•relay output to logic, dc or sensor connections;
•any connection to ground.
The controller must not be wired to a three phase supply
with an unearthed star connection. Under fault
conditions such a supply could rise above 240Vac with
respect to ground and the product would not be safe.
Conductive pollution
Electrically conductive pollution must be excluded from
the cabinet in which the controller is mounted. For
example, carbon dust is a form of electrically conductive
pollution. To secure a suitable atmosphere in conditions
of conductive pollution, fit an air filter to the air intake
of the cabinet. Where condensation is likely, for
example at low temperatures, include a thermostatically
controlled heater in the cabinet.
This product has been designed to conform to BSEN61010
installation category II, pollution degree 2. These are
defined as follows:-
Installation Category II (CAT II)
The rated impulse voltage for equipment on nominal 230V
supply is 2500V.
Pollution Degree 2
Normally only non conductive pollution occurs.
Occasionally, however, a temporary conductivity caused by
condensation shall be expected.
Grounding of the temperature sensor shield
In some installations it is common practice to replace the
temperature sensor while the controller is still powered
up. Under these conditions, as additional protection
against electric shock, we recommend that the shield of
the temperature sensor is grounded. Do not rely on
grounding through the framework of the machine.
Over-temperature protection
When designing any control system it is essential to
consider what will happen if any part of the system
should fail. In temperature control applications the
primary danger is that the heating will remain constantly
on. Apart from spoiling the product, this could damage
any process machinery being controlled, or even cause a
fire.
Reasons why the heating might remain constantly on
include:
•the temperature sensor becoming detached from the
process
•thermocouple wiring becoming short circuit;
•the controller failing with its heating output
constantly on
•an external valve or contactor sticking in the heating
condition
•the controller setpoint set too high.
Where damage or injury is possible, we recommend
fitting a separate over-temperature protection unit, with
an independent temperature sensor, which will isolate
the heating circuit.
Please note that the alarm relays within the controller
will not give protection under all failure conditions.
Installation requirements for EMC
To ensure compliance with the European EMC directive
certain installation precautions are necessary as follows:
•For general guidance refer to Eurotherm Controls
EMC Installation Guide, HA025464.
•When using relay outputs it may be necessary to fit a
filter suitable for suppressing the emissions. The
filter requirements will depend on the type of load.
•If the unit is used in table top equipment which is
plugged into a standard power socket, then it is likely
that compliance to the commercial and light
industrial emissions standard is required. In this case
to meet the conducted emissions requirement, a
suitable mains filter should be installed.
Routing of wires
To minimise the pick-up of electrical noise, the low
voltage DC connections and the sensor input wiring
should be routed away from high-current power cables.
Where it is impractical to do this, use shielded cables
with the shield grounded at both ends. In general keep
cable lengths to a minimum.