Ogden ETR-9090 User manual

MANUAL NO. 14A
SOFTWARE VERSION
3.3 AND HIGHER
Model ETR-9090
Microprocessor Based
SMARTER LOGIC®Auto Tune PID Controller
INSTRUCTION MANUAL
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Failure of devices, such as the thermocouple-RTD sensor, heater output relay or temperature control can result in
severe damage to a product while in process, melting of the heater or a damaging fire. An over-temperature
protection device must be installed in your process that will remove all power from the heating circuit if the above
failure occurs. We recommend that this device be classified as a safety control and carry FM, U.L. and CSA Listing
or Certification. Failure to install high-limit temperature control protection where a potential hazard exists, could
result in damage to equipment and property, and severe injury to personnel.
WARNING!
INSTRUCTION MANUAL
FOR ETR-9090
Section 1: INTRODUCTION
This manual contains information for the installation and
operation of the Ogden Model ETR-9090 auto-tuning
micro-processor based controller with Smarter Logic®.
Ease of use is an essential feature on this versatile
controller. Four touch keys are used to select sensor
type, control mode, control parameters, alarm mode,
degrees C/F, auto-manual mode, and to lock the
parameters from the prevention of unauthorized
tampering. Two large 4-digit displays show process
and set point values at a glance. Precise 14 slope
sensor linearization, self-diagnostic capability, cold
junction compensation and 3-mode PID calculations are
automatically executed by the single chip microproces-
sor. The wide selection of parameters, values, sensor
types, set points, control modes, alarm modes, degrees
C/F and security codes are held in a non-volatile
memory and retained for ten years if the unit is left
unpowered. Batteries are not necessary.
The auto-tuning function determines the correct
proportional band, rate and reset values to provide
accurate control with minimal overshoot and tempera-
ture oscillation. This is accomplished without the need
for expensive and time consuming procedures for
set-up of control parameters. In case of a power failure
or temporary shutdown, the instrument retains the
correct parameters. This instrument also has manual
override capabilities that allow the operator to bypass
the auto-tuning parameters. Required fine tuning
adjustments can then be made.
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64 West Seegers Road
Arlington Heights, IL 60005
[phone] •Fax: [phone]
Printed in U.S.A. 7/99
© Ogden Manufacturing Co. 1999
OGDEN, ETR, ETR-9090 and
SMARTER LOGIC are
Registered Trademarks of
Ogden Manufacturing Co.
MARCA REGISTRADA
Specifications subject to change without notice.

Section 2: CATALOG NUMBERING SYSTEM
Section 3: SPECIFICATIONS
Sensor Input Type Max. Range F° Accuracy F° Max. Range C° Accuracy C°
J Iron/Constantan –58 to 1832°F ±3.6°F –50 to 1000°C ±2°C
K Chromel/Alumel –58 to 2500°F ±3.6°F –50 to 1370°C ±2°C
T Copper/Constantan –454 to 752°F ±3.6°F –270 to 400°C ±2°C
E Chromel/Constantan –58 to 1382°F ±3.6°F –50 to 750°C ±2°C
B Pt-30%RH/Pt-6% RH 32 to 3272°F ±5.4°F 0 to 1800°C ±3°C
R Pt-13%RH/Pt 32 to 3182°F ±3.6°F 0 to 1750°C ±2°C
S Pt-10%RH/Pt 32 to 3182°F ±3.6°F 0 to 1750°C ±2°C
N Nicrosil/Nisil –58 to 2372°F ±3.6°F –50 to 1300°C ±2°C
RTD PT 100 ohms (DIN) –328 to 752°F ±0.72°F –200 to 400°C ±0.4°C
RTD PT 100 ohms (JIS) –328 to 752°F ±0.72°F –200 to 400°C ±0.4°C
Linear Voltage or Current –1999 to 9999 ±0.05% –1999 to 9999 ±0.05%
Line Voltage: 90-264 VAC, 50-60 Hz, 20-32VAC/DC and 10-16VDC available.
Input: Type: J, K, R, T, B, E, S, N
thermocouple, PT100 ohm
RTD (DIN) 43760/BS1904
or JIS) and –10 to 60mV
(given span).
Power consumption: Less than 5VA.
Accuracy: ±.1%, ± least significant digit.
ETR-9090- 1 2 3
LINE ONE–SIGNAL INPUT:
1.) Thermocouple J, K, T, E, B, R, S, N
2.) RTD PT100 ohms, Alpha = 0.00385/DIN43760
3.) RTD PT100 ohms, Alpha = 0.00392/JIS
4.) Voltage - 10 to 60 mV, current or special order
LINE TWO–CONTROL OUTPUT:
1.) None
2.) Relay rated 3A/240VAC/VDC resistive, 2400VA
3.) Pulsed voltage to drive SSR, 3-32VDC
4.) Internal Triac rated 1A, 240VAC
5.) Isolated 4-20mA linear
6.) Isolated 0-20mA linear
7.) Isolated 0-10V linear
8.) Special order
LINE THREE–ALARM:
1.) With alarm relay rated 2A/240VAC
2.) No alarm
Example:
Standard Model: ETR-9090-1 2 1
Thermocouple Type J, K, T, E, B, R, S, N, heating relay, with alarm
Maximum Temperature Ranges:
NOTE: A “-3”after the 9090 indicates 20-32VAC/VDC operation.
A”-4”after the 9090 indicates 10-16VDC operation.

SPECIFICATIONS
Operating ambient for 14-120°F (-10 to 50°C)
rated accuracy:
Storage Temperature: -4 to 160°F (-20 to 70°C)
Humidity: 5 to 90%RH (non-condensing
Dimensions: Front panel: H-17⁄8”(48mm)
W-17⁄8”(48mm)
D-33⁄4”(95mm)
Depth behind panel: 33⁄8”
(86mm)
Panel cutout: 125⁄32”x 125⁄32”(45 x 45mm)
Weight: 7 oz. (198 grams)
Normal mode rejection: 60dB
Common mode rejection:120dB
Thermocouple break
protection: Operator selectable
Display: Process .4”red LED
Set point .3”green LED
Display update rate: 4 times per second
EMC Emission: EN500081-1, EN55011
EMC Immunity: IEC801-2, 801-3, IEC801-4
°F/°C: External keypad selection
Auto/Manual operation: External keypad selection
Linearization: Software driven
Outputs: Heating and/or alarm
Output modules
–Current output: 4-20mA isolated, max. load
500 ohms
–Voltage output: 0-10V isolated, minimum
impedance 500K ohms
–Pulsed voltage: 24VDC, unisolated max.
current 20mA
–Relay: 3A/240V, Resistive load for
heating, 2A/240V, Resistive
load for alarm.
Control Action: Heating (relay closed on
temperature rise) or cooling
(relay open on temperature
rise) front panel selectable.
NON-VOLATILE MEMORY
•Retains process parameters when power is off
EXTERNAL LOCKOUT CODE
•Prevents accidental or
unauthorized changes
STATUS INDICATORS
•Indicate output and alarm
condition
CON: Control Output
ALM: Alarm Output
4 PUSHBUTTONS
•For ease of control set-up
AUTOMATIC TUNING
•Eliminates complicated and
time consuming manual
tuning procedures
•Smarter Logic practically
eliminates overshoot and
temperature variations
SET POINT DISPLAY VALUE
•All control parameter and set
points displayed
•Output Percentage
•Calibration parameters
TOUCH KEY, Sealed mylar front panel
•Splash and chemical resistant
•Tactile feedback, pressure sensitive buttons
MODEL ETR-9090

RISK OF ELECTRIC SHOCK - Dangerous and poten-
tially fatal voltages are present when working on this
equipment. Before installation or beginning any
troubleshooting procedures, the electric power to this
equipment must be disconnected and locked out as
described by OSHA Standards. Units suspected of
being faulty must be removed and returned to Ogden for
inspection and/or repair. They contain no user service-
able components.
To help minimize the possibility of fire or shock hazards,
do not expose this instrument to rain or excessive
moisture. This control is not to be used in hazardous
locations as defined in Articles 500 and 505 of the
National Electric Code.
Do not use this instrument in areas subject to
hazardous conditions such as excessive shock,
vibration, dirt, moisture, corrosive gases or oil. The
ambient temperature of the areas should not exceed
the maximum rating specified in Section 3, on previous
page.
Unpacking:
Upon receipt of the shipment remove the instrument
from the carton and inspect the unit for shipping dam-
age. If any damage due to transit is noticed, report and
file a claim with the carrier. Write down the model num-
ber, serial number, and date code for future reference
when corresponding with our service center. The serial
number (S/N) and date code (D/C) are located inside
the control.
Mounting:
Make panel cutout to dimensions shown below. Insert
the controller into the panel cutout. The maximum
panel thickness is 1⁄8" (3mm).
CAUTION!
WARNING!
WARNING!
Section 4: INSTALLATION
1-25/32"
(45mm)
1-25/32"
(45mm)
Panel Cutout Panel
3-3/8"
(86mm)
3-3/4"
(95mm)
SPADE TONGUE
CONNECTOR FOR
NO. 6 STUD 3/8"
5/16"
9/16"
20 AWG
Figure 4.2 Lead TerminationFigure 4.1 Mounting Dimensions
Wiring Precautions:
•Before wiring, verify the label for correct model num-
ber and options. Switch off the power when checking.
•Care must be taken to ensure that maximum voltage
ratings specified in Section 3 on previous page are
not exceeded.
•It is recommended that power to these instruments
be protected by fuses and circuit breakers rated at
the minimum value possible.
•All units should be installed inside a suitably ground-
ed metal enclosure to prevent live parts being acces-
sible to human hands and metal tools.
•All wiring must conform to appropriate standards of
good practice, national and local codes and regula-
tions. Wiring must be suitable for the maximum volt-
age, current, and temperature ratings expected in the
system.
•Both solderless terminals or “stripped”leads as
specified in Figure 4.2 below can be used for power
leads. Only “stripped”leads should be used for ther-
mocouple connections to prevent compensation and
resistance errors.
•Take care not to over-tighten the terminal screws.
•Unused control terminals should not be used as
jumper points as they may be internally connected,
causing damage to the unit.
•Verify that the ratings of the output devices and the
inputs as specified in Table 4.2 on Page 8 are not
exceeded.
•Electric power in industrial environments contains a
certain amount of noise in the form of transient volt-
ages and spikes. This electrical noise can enter and
adversely affect the operation of microprocessor-
based controls. For this reason we strongly recom-
mend the use of shielded thermocouple extension
wire which connects from the sensor to the controller.
This wire is a twisted-pair construction with foil wrap
and drain wire. The drain wire is to be attached to
earth ground at the control end only. We carry both
type J and type K in our stock.
NOTE: The use of motor starters in place of magnetic
contactors should be avoided. They have very large
inductive loads that can damage the controller’s relay.
!

Power Wiring:
Connect terminals as shown in Figure 4.3. The power
switch S1 and Fuse F1 are included for illustrative purpose
only. All wiring must conform to national and local electrical
Input Wiring:
Connect appropriate sensors to terminals 3, 4, or 5 as
illustrated in Figure 4.3 above. Verify that the instru-
ment is selected for the correct sensor and the correct
polarity is observed at both the sensor-end and instru-
ment-end of the cable. Do not run sensor cables in the
same conduit or wiring trough as power lines because
the low level signal is noise sensitive.
When wiring the thermocouple, check the thermocouple
and extension wire (compensating cable) to make sure
they conform to the appropriate thermocouple type
specified by the instrument. Extension wires must be
the same alloy and polarity as the thermocouple. The
total lead resistance should not exceed 100 ohms for
accurate measurements. One hundred ohms of lead
resistance will introduce a 1°F (0.5°C ) error.
For wiring 3 wire RTD (Resistance Temperature
Detector) all leads connecting the RTD to the controller
must be the same gauge and material. If the RTD is a
3 wire device, install the two common wires of the RTD
to terminals 4 and 5. If a 2 wire RTD is to be used,
install a jumper between terminals 4 and 5.
Figure 4.3 Rear Terminal Connections
1
2
3
4
5
6
7
8
9
10
F1 S1
Current.
Voltage
Control +
–Pulsed
Voltage
O/P
C
NO
NC
Alarm
Common
Alarm
N/O
RTD
T/C
Sensor +
+–
–V
mA
V
Supply
Power
Optional
DC
+
–
codes. Refer to Figures 4.4, 4.5 and 4.6 on following
pages for sample wiring diagrams.
Thermocouple Cable American British German French
Type Material ANSI BS DIN NFE
1843 43710 18001
JIron/Constantan + white
- red
* black
+ yellow
- blue
* black
+ red
- blue
* blue
+ yellow
- black
* black
KChromel/Alumel + yellow
- red
* yellow
+ brown
- black
* red
+ red
- green
* green
+ yellow
- purple
* yellow
TCopper
Constantan
+ white
- blue
* blue
+ blue
- red
* blue
+ red
- brown
* brown
+ yellow
- blue
* blue
R
SPlatinum/Rhodium + white
- blue
* green
+ black
- red
* green
+ red
- white
* white
+ yellow
- green
* green
BPlatinum/Rhodium + grey
- red
* grey
+ red
- grey
* grey
Table 4.1 Thermocouple Cable Color Codes
* Color of overall sheath Chromel®and Alumel®are registered trademarks of Hoskins Mfg. Co.

–
+
Thermocouple
Internal
Relay
1
2
3
4
5
6
7
8
9
10
Fuse
5A
Heater
3 Amps
Maximum 360W/120V
720W/240V
Maximum
Heater
Load
Incoming
Power
Red
–
+
T
hermocouple
1
2
3
4
5
6
7
8
9
10
Control
Fuse
1A
Control
Power
12
3
4+
Solid State
Relay
Heaters
+
–
Red
This diagram can also be used
for controls with 4-20mA output.
Heater
Fuse
Heater
Power
Figure 4.4
Example of wiring connections for
ETR-9090-122 with Relay Output.
Figure 4.5
Example of wiring connections for
ETR-9090-132 with Pulsed Voltage Output
for Solid State Relay
B
B
A3
4
5
RTD Sensor Connections
Note control label for incoming power requirements.
CAUTION
SHOCK
HAZARD

–
+
White
Thermocouple
Heater
Relay
1
2
3
4
5
6
7
8
9
10
Control
Fuse
Incoming
Power
o
o
o
o
o
o
Coil
o
oo
Three
Phase
Heater
Power
3-Pole
Magnetic
Contactor
NEMA
or
DP
Three Phase
Delta Heater
Load
Alarm
2 Amps
Maximum
Alarm
Relay
Heater
Fuses
Red
Figure 4.6
ETR-9090-121 with Relay Output.
Heaters connected in 3-Phase to Contactor.
With Alarm option.
Note control label for incoming power requirements.

Output Wiring:
Four different types of output devices can be used from
output one. Relay, current, voltage and pulsed voltage
provide a variety of control applications, Verify that the
output device is correctly selected to meet your
application requirements and make certain the ratings
of the output devices are not exceeded before wiring
the system.
The external connections depend on what type of
output is installed. Pulsed voltage output is not isolat-
ed from the internal circuits of the instrument.
Alarm
This instrument offers 14 different alarm modes. Each
one can be selected by pressing the keypads on the
front panel. The detailed descriptions are shown on
Table 5.3, Page 11 and on Table 5.7, Page 16.
Sensor Placement
Proper sensor placement can eliminate many problems
in a control system. The probe should be placed so
that it can detect any temperature change with minimal
thermal lag. In a process that requires fairly constant
heat output, the probe should be placed close to the
heater. In processes where the heat demand is
variable, the probe should be closer to the work area.
Some experimenting with probe location is often
required to find this optimum position.
In a liquid process, addition of a stirrer will help to
eliminate thermal lag. Since the thermocouple is
basically a point measuring device, placing more than
one thermocouple in parallel will provide an average
temperature reading and produce better results in most
air heated processes.
Proper sensor type is also a very important factor in
obtaining precise measurements. The sensor must
have the correct temperature range to meet the
process requirements. In special processes the sensor
might have to have different requirements such as
leak-proof, anti-vibration, antiseptic, etc.
Standard sensor limits of error are ± 4 degrees F (±2
degrees C) or 0.75% of sensed temperature (half that
for special) plus drift caused by improper protection or
over-temperature occurance. This error is far greater
than controller error and cannot be corrected at the
sensor except by proper selection and replacement.
Function Internal Device: Terminals: External Connection:
1.Relay (Isolated). To line 240VAC max.
Relay contact is closed during
ON phase of output cycle.
(CTRL lamp ON)
2.Current (Isolated. Input impedance of control
Reverse acting current (The device, MAX. 500 ohms.
function of CTRL lamp ON
lasts longer during decreasing
process value).
3.Voltage (Isolated). Input impedance of control
Reverse acting voltage (The device, MIN. 500K ohms.
Flashing of CTRL lamp ON
lasts longer during decreasing
process value).
4.Pulsed Voltage. To drive solid state relay
The non-isolated logic signal or other isolated control
goes high during ON phase of device 24 VDC/20mA
output cycle. (CTRL lamp ON). MAX.
LOAD MAX 3A
8
9
9
8+
–
9
8+
–
4-20mA
0-20mA
0-10V +
–
V
8
9
+
–+
–
Table 4.2 Heating Output Wiring

Section 5: OPERATION
Front Panel Adjustments
Table 5.1 Keypad Operation
TOUCHKEYS DESCRIPTION FUNCTION
Scroll Key Advances the index display to the desired position.
Indexes advanced continuously and cyclically by
pressing this keypad.
Up Key
Down Key
Return Key
Long Scroll
Long Return
Output Percentage
Monitoring
Manual Mode Execution
Increases the parameter. (Set point or other)
Decreases the parameter. (Set point or other)
Resets the controller to its normal status. Also stops
auto-tuning, output percentage monitoring and manual
mode operation.
Allows more parameters to be inspected or changed.
1. Executes auto-tuning function.
2. Calibrates control when in calibration level.
Allows the set point display to indicate the control
output value in percent.
Allows the controller to enter the manual mode.
This can be used if the sensor fails.
Press
for 6 seconds
Press
for 6 seconds
Press and
Press and
for 6 seconds
RETURN KEY
SCROLL KEY
PROCESS VALUE
SET VALUE

Long
(6 seconds)
Long
(6 seconds)
Long
(6 seconds)
PROCESS VALUE DISPLAY
SET VALUE DISPLAY
AND ADJUSTMENT Level 1
Level 2
Level 3
Level 4
Table 5.2 Control Function
and Display Flow Chart
The "return" key ( )can be pressed at any time.
This will prompt the display to return to the
Process Value/Set Value.
Power Applied:
1. Displayed for 4 seconds
(Software Version 3.3 or higher)
2. LED test.
All LED segments must be lit for 4 seconds.
3. Process value and set point indicated.
.
WARNING: Do not enter Level 4 unless you have proper calibration
instruments. Refer to Page 19 for further information.

*Factory set before shipping.
**Process alarms are at fixed temperature points.
Deviation alarms move with set point value.
For convenience, values used can be recorded on the next page.
Long Scroll
Index Description *Default
Code —Adjusting Range Setting
Alarm Mode Selection**
0: Process High Alarm
1: Process Low Alarm
2: Deviation High Alarm
3: Deviation Low Alarm 2
4: Inhibited Process High Alarm
5: Inhibited Process Low Alarm
6: Inhibited Deviation High Alarm
7: Inhibited Deviation Low Alarm
8: Outband Alarm
9: Inband Alarm
10: Inhibit Outband Alarm
11: Inhibit Inband Alarm
12: Alarm Relay OFF as Dwell Time Out
13: Alarm Relay ON as Dwell Time Out
Hysteresis of Alarm
–0 to 20.0% of SPAN 0.5
°C/°F Selection
–0 to 1 0
0:°F, 1:°C
Resolution Selection
–0 to 3
0: No Decimal Point Used
1: 1 Digit Decimal
2: 2 Digit Decimal 0
3: 3 Digit Decimal
2 and 3 can only be used for
Linear Voltage or Current
(IN=10)
Control Action
–0 to 1
0: Direct (cooling) Action 1
1: Reverse (heating) Action
Error Protection
–0 to 3
0: Control OFF, Alarm OFF
1: Control OFF, Alarm ON 1
2: Control ON, Alarm OFF
3: Control ON, Alarm ON
Hysteresis of ON-OFF control
–0 to 20.0% of SPAN 0.5%
Low Limit of Range (SPAN)
Adjust for your process –58
–See Instructions on Page 13.
High Limit of Range (SPAN)
Adjust for your process 1832
–See Instructions of Page 13
Low Calibration parameter
–Refer to Section 6. 32
High Calibration parameter
–Refer to Section 6. 1112
Index Description *Default
Code —Adjusting Range Setting
Set Point of control
SV –Low Limit to High Limit Value
Alarm Set Point Value
–Low limit to high limit (If ALAI=0,1,4 or 5)
–0-3600 minutes (If ALAI=12 or 13) 18°F
–Low limit minus set point high limit minus
set point (IF ALAI=2, 3, 6 or 11)
Ramp Rate for the process value.
Limits an abrupt change of the
process temperature. (Soft start)
–0-360°F 0-200°C/minute (If in=0-90) 0.0
–0-3600°/minute (If in = 10)
Offset Value for Manual Reset
Only used if integral is 0. 0.0
–0 to 100%
Offset shift for process value
–199 count to 199 count 0.0
See page 18 for instructions
Proportional Band
0 - 360°F
For ON-OFF control set to 0 18.0
See instructions below.
Integral (Reset) Time, TI
–0 to 3600 seconds 120 sec.
Derivative (Rate) Time, TD
–0 to 1000 seconds 30 sec.
Local Mode
–0 to 1-
0: No Control Parameters can be 1
changed.
1: Control Parameters can be
changed.
Following parameters will be
upgraded to Level 1
–0 to 7
0: None 4: 0
1: 5:
2: 6:
3: 7:
Proportional Cycle Time, Heating &
Cooling –0 to 120 seconds Relay 20
3-32VDC Pulsed Voltage 1
Linear Voltage, 4-20ma Current 0
Input Mode Selection, IN
–0 to 10 5: R Type T/C T/C 0
0: J Type T/C 6: S Type T/C
1: K Type T/C 7: N Type T/C RTD 8
2: T Type T/C 8: PT100 DIN
3: E Type T/C 9: PT100, JIS
4: B Type T/C 10: Linear Voltage Linear 10
or Current
NOTE: T/C - Close solder gap G5. RTD - Open G5
Located on P.C.B. A909F
Table 5.3 Index Code (Menu) Descriptions:
(Do not disconnect power for at least 12 seconds after changing any control values.
This allows the parameters to be entered into memory.)
ON-OFF CONTROL:
For on-off control action the following parameters must
be set to zero (0): Proportional band, Integral, Derivative,
Cycle time, Offset. The hysteresis (deadband) adjust-
ment must now be used to determine the process oscil-
lations from set point. Setting the hysteresis to a larger
number will cause the contactor (or other equipment, to
switch less often, but the process will oscillate farther
from the set point.
NOTE: Further parameter definitions
on pages 12 and 13

ALARM SET POINT
SET POINT VALUE
SV
RAMP RATE
OFFSET
DISPLAY SHIFT
PROPORTIONAL BAND
INTEGRAL
DERIVATIVE
LOCK OUT
SELECT
CONTROL
NO.
PARAMETER
ETAD
CYCLE TIME
INPUT TYPE
ALARM TYPE
ALARM HYSTERESIS
RESOLUTION
DEGREES C OR F
CONTROL ACTION
ERROR PROTECTION
CONTROL HYSTERESIS
LOW RANGE
HIGH RANGE
Table 5.4 Parameter Chart
Long Scroll
PARAMETER DEFINITIONS:
PV - Process Value - This is the temperature (or other
process variable) as measured at the sensor. This will indi-
cate a value within the range between the low scale value
(LLiE) and High scale value (HLiE). This indication will read
an error code if the temperature (process variable) goes out
of the preset span. Note items 4 and 5 of the troubleshoot-
ing guide on page 21 for the error code descriptions.
SV - Set Point Value - This parameter is the desired set
point of the process. It can be adjusted within the range
defined by the low scale (LLiE) and high scale value (HLiE).
The span adjustments can be used to limit the set point set-
ting of the controller.
ASP1 - Alarm Set Point Value or Dwell Time - This sets
the point at which the alarm will energize if ALAI (alarm
mode selection) is set for an alarm function. If ALAI is
selected for the dwell timer function (setting 11 or 12), then
this becomes the timer setting in minutes. The dwell timer
starts counting when the process value reaches the set
point value. Note page 17 for more information.
rr - Ramp Rate - This controls the heat-up and cool-down
rate of the process. This setting is in degrees per minute.
Note page 15 for more information.
oFST - Offset Value - This parameter is only functional if
the integral time (Ti) is set to zero. The oFST than func-
tions the same as manual reset to correct the process tem-
perature to the set point temperature. If the process tem-
perature stabilizes below the set point, set a positive
amount of oFST. If the process temperature stabilizes
above the set point, set a negative amount of oFST. Wait
for the system to stabilize and make further adjustments as
required. The number observed in this parameter can be
ignored if you have a number greater than 1 entered in the
integral setting (Ti).
ShiF - Display Shift - A value entered here will be added to
or subtracted from the Process Value. This offset can be
used as a correction factor if the sensor does not read the
same temperature as the item being sensed. It can also be
used to correct for calibration. Note page 18 for more infor-
mation.
Pb, Ti and Td - PID Values - Proportional band (Pb),
Integral (Ti) and Derivative (Td) time constants. These
must be set as close as possible to the process application
requirements. During auto-tuning, these parameters will be
adjusted. Note pages 13, 14 and 15 for more information.
LoCL - Local Mode - Used to disable the up and down but-
tons to prevent tampering.
SEL - Select - Used to upgrade commonly used parame-
ters to Level 1.
CT - Proportional Cycle Time - This sets the proportional
cycle time for the control output. This should be set accord-
ing to the type of output device used. For mechanical
relays, cycle times of 15 to 20 seconds are used. For solid-
state relays, set this adjustment to 1 or 0. For 4-20mA or
other linear outputs, adjust to 0.
in - Input Mode Selection - This parameter is used to pro-
gram the control to the type of input sensor used.
ALAI - Alarm Mode Selection - This adjustment sets the
type of alarm (or dwell timer) to be used: deviation alarm,
band alarm or process alarm. Refer to page 16 for more
information. (Continued on next page.)

Operating Procedure:
When the control has been wired, you can apply power.
The display will indicate the model number, software
version and LED lamp test. The temperature as
measured at the sensor should now be indicated by the
PV display. The thermocouple is wired in reverse if the
indicated temperature decreases as the temperature at
the thermocouple increases. The set point should be
lowered to a value (eg. 30°F) so the heaters will not be
energized. This will allow time to enter and make any
adjustments of the parameters. The process will not
heat-up.
Span Adjustment:
During this initial set-up, alarm points and any other set-
tings can now be made. The low limit and high limit
range settings (LLiE) and (HLiE) should be adjusted to
your process. This sets the range (SPAN) of the con-
trol. The set point cannot be adjusted out of this range.
For plastics processing and packaging, a span of 0-
800°F is common. If oils are used, a lower span such
as 0-300°F should be entered.
Automatic Tuning Procedure
When the settings have been made, you can return to
the PV/SV level. Do not enter the calibration level.
Adjust the required process temperature set point. The
green “output”lamp should turn on indicating the
heaters have been energized. You can auto-tune the
control to the set point by depressing the return ( )
button for six seconds, then release. This matches the
control’s PID values to your process requirements. The
lower decimal point will flash, indicating the control is in
the auto-tune mode. No other adjustments can be
made while the control is auto-tuning. During auto-tun-
ing, the process will take approximately twenty-five per-
cent longer to heat-up than it normally takes. After auto-
tuning, the correct PID values will be entered into the
control’s memory.
Auto-tuning will not function if the control has been con-
figured from PID to ON-OFF. For electric heating, PID is
usually recommended.
Auto-tuning may not give satisfactory results and hold a
close temperature on all applications. If this occurs, you
can change the PID values manually using the three
charts in Figure 5.1 on the top of the next page and
Table 5.5 for a guide. It is recommended to change
only one parameter at a time, so the results of that
change can be clearly noted.
ON-OFF Control:
On-off control action is recommended when continuous
cycling of the load cannot be used. Examples are
mechanical solenoids, large contactors and valves.
For on-off control, set the following parameters to zero:
proportional band; integral; derivative and offset
(oFSE). The hysteresis (hySE) adjustment is now used
to set the deadband. The larger the hysteresis is set,
the larger the deadband will be. A large deadband will
cause the contactor (or other device) to switch less
often, but the process will oscillate farther from the set
point. This setting is measured in degrees.
Adjusting PID Parameters:
The PID parameters can be reviewed by operating the
scroll key and noting whether the values are reason-
able or not. Examine the controller’s result. Modify the
PID parameters, if necessary, according to Table 5.5 on
page 15 until the control quality is acceptable.
PID Control
For various applications, the controller can be used as
P control only (set integral = 0, derivative - 0); PI con-
trol (set derivative = 0), PD control (set integral = 0),
and PID control.
Figure 5.3 on page 14 represents the response of a
typical control system using various modes of control.
1.) P control results in a response showing a devia-
tion (offset), a high overshoot and a moderate period of
oscillation. In addition, a significant length of time is
required before the system ceases to oscillate.
2.) PI control has no offset, but elimination of offset
comes at the expense of higher overshoot, larger peri-
od of oscillation and a longer time required for
oscillations to cease compared with other modes of
control.
3.) PD control generally brings the system to steady
state in the shortest time with the lease oscillation.
However, it still has offset.
4.) PID control is essentially a compromise between
the advantages of PI and PD control. Offset is elimi-
nated by the integral action. The derivative action
serves to lower offshoot and to eliminate some of the
oscillation realized with PI control.
AHY1 - Hysteresis of Alarm - The value entered here
defines the deadband for the alarm. The alarm will not
change state until the temperature is outside of the
deadband.
CF - Degrees Selection - Sets the indication to
degrees Celsius or Fahrenheit.
rESO - Display Resolution - This parameter is used to
place a decimal point in the process and set point val-
ues. A two-place decimal point can only be used if the
“in”adjustment is set to 10; ;linear voltage or current.
ConA - Control Action - This parameter selects heat-
ing (reverse) or cooling (direct) action for the control
output.
ErPr - Error Protection - Sets the control and alarm
output to be used in case of sensor failure.
hYSE - Hysteresis of On-Off Control - This parameter
defines the deadband when on-off control is used and
PID control has been disabled. For on-off control, set
Pb, Ti and Td to 0. The output on a relay control will
not change state until the temperature is outside of the
deadband. Note page 13 for more information.
LLiE, HLiE - Low Scale/High Scale Range - The para-
meters are used to define the range (span) of the con-
trol. These should be set for the requirements and
safety of your process. Refer to “Span Adjustment”on
page 13 for further information.

The proportional band (Pb) is a temperature band
expressed in degrees. When the controller is within this
band, the time proprtioning functions are active.
Integral action (automatic reset) corrects for offset (load
error) for load variations. Reset wind-up inhibition prevents
integral action from occurring outside of the proportional
band. Software antisaturation minimizes process oscilla-
tions when the load changes.
Derivative action is adjusted to match the response time of
the process and to compensate the integral action.
Correct adjustment provides power output compensation
for process load variations. It also minimizes overshoot
and oscillations at start up or in large process upsets.
Refer to Figure 5.1 for additional adjustment instructions.
Manual Tuning Procedures:
For some systems it is difficult to execute automatic tuning
or the automatic tuning results are not satisfactory. The
following steps can then be used for initial tuning of a
three-mode control:
Step 1: Adjust the integral and derivative values to 0. This
inhibits the rate and reset action.
Step 2: Set an arbitrary value of proportional band and
monitor the control results.
Step 3: If the original setting introduces a large process
oscillation then gradually increase the proportional
band until the oscillation disappears.
Step 4: If the original setting does not introduce process
oscillations then gradually decrease the propor-
tional band until steady cycling is observed.
Record this important proportional band percent-
age (Pc).
Step 5: Time the period of steady cycling. Record this crit-
ical period Tc. The PID parameters are deter-
mined as:
This method was developed by Ziegler and Nichols.
If you are unfamiliar with tuning PID Controllers, we sug-
gest that you obtain and become familiar with the following
reference material: Tuning of Indusrial Control Systems
by A.R. Corripio ISBN: 1-55617-253-2-Q. Available from:
ISA Publications and Training Aids, phone: [phone].
This method should be performed with a temperature
chart recorder.
Fig. 5.2 Steady State Cycling TIME
PV (Process value)
PV
Tc
P Band (Pb) = 1.7 Pc
Integral Time (ti) = Tc
Derivative Time (td) = 0.125 Tc
PV
UPPER PB
SET POINT
LOWER PB
PI PID
PD P
OFFSET PROPORTIONAL BAND
TIME
Perfect
Proportional Band Too Low
Proportional Band Too High
SP
PV
TIME
PROPORTIONAL ACTION
Derivative Too High
Perfect
Derivative Too Low
TIME
SP
PV
DERIVATIVE ACTION
INTEGRAL ACTION
PV
SP
Integral Too High (Too long for recovery)
Perfect
Integral Too Low
TIME
FIG 5.1 Effects of PID Adjustment on Process Response
Fig. 5.3 Response of a Typical Control System Using Various Modes of Control

There are 5 levels of parameter security protection.
They are shown below in the order of protection.
Also refer to table 5.2 on page 10.
LEVEL 1 LOCL = 0 No changes can be made
LEVEL 1 LOCL = 1 Only set point can be changed
LEVEL 2 LOCL = 1 Long scroll at Process Valve
LEVEL 3 LOCL = 1 Long scroll at
LEVEL 4 LOCL = 1 Long scroll at
Table 5.5 Tuning Guide
ADJUSTMENT SEQUENCE: SYMPTOM: SOLUTION:
1.) Proportional Band Slow Response Decrease Proportional Band (Pb)
High Overshoot or Oscillations Increase Proportional Band (Pb)
2.) Integral Time (Reset) Slow Response Increase Reset (i.e. Decrease Integral Time)
Instability or Oscillations Decrease Reset (i.e. Increase Integral Time)
3.) Derivative Time (Rate) Slow Response or Oscillations Decrease Rate (i.e. Decrease Derivative Time)
High Overshoot Increase Rate (i.e. Increase Derivative Time)
Table 5.6 Parameter Lockout
RAMP RATE ADJUSTMENT
The purpose of this adjustment is to control the rate at
which the process temperature can change. This feature
would be used when rapid temperature changes could
damage the product being controlled. When used, the
ramp rate is in effect at all times, during heat-up, set point
changes and cool-down.
The ramp rate ( ) is expressed in degrees/minute
EXAMPLE 1: The process temperature cannot change
more than 5 degrees per minute.
Adjust = 5
EXAMPLE 2: The process temperature cannot change
more than 60 degrees per hour.
Adjust = 1
The ramp rate is not functional if is set to zero.
Manual Mode Operation:
It is suggested to use Manual Mode (open loop operation)
during the time the controller’s sensor is not functioning
and the control is unable to display the correct process
value. This can also be used when automatic control
(closed loop) is not possible or during the time required to
test the characteristics of a process.
In order to enter the manual mode operation press both
the “Scroll”key and the “Return”key for longer than 6
seconds and release. Now the control will display the out-
put percentage with a range of –100% to 100%. A posi-
tive value for heating output percentage and a negative
value for cooling output percentage. Press the UP or
DOWN key to adjust the output percentage. Zero output
percentage disables the heating output.
Ramp Rate Ramp Rate
Set Point
Temperature
TIME
Process Temperature
Figure 5.4 Ramp Rate Diagram

SV - ASP1
SV
ASP1
= 0 = 1 = 2 = 3
= 4 = 5 = 6 = 7
= 8 = 10
= 11 = 13 = 12
= 9
PROCESS HIGH ALARM
SV
SV + ASP1
OUTBAND ALARM
ASP1
SV
ASP1
INHIBIT OUTBAND ALARM
SV - ASP1
SV
ASP1
INBAND ALARM
ASP1
SV
ASP1
SV
ASP1
ASP1
INHIBITED
PROCESS HIGH ALARM INHIBITED PROCESS LOW ALARM
SV
ASP1
moves
with SV
ASP1
moves
with SV
ASP1
moves
with SV
DEVIATION HIGH ALARM DEVIATION LOW ALARM
SV
ASP1
SV
PROCESS LOW ALARM
SV
Alarm is not
active the
first incident
Alarm is not
active the
first incident
Alarm is not active the first incident
SV
INHIBITED
DEVIATION HIGH ALARM
Alarm is not
active the
first incident
Alarm is not
active the
first incident
ASP1
INHIBITED
DEVIATION LOW ALARM
SV
Alarm is not
active the
first incident
INHIBIT INBAND ALARM
SV
DWELL TIME OUT RELAY OFF
SOAK CONTROL
Once set point
is reached.
timer is activated
= MINUTES
SV
DWELL TIME OUT RELAY ON
SOAK CONTROL
Once set point
is reached.
timer is activated
See Ramp Example on Page 17 See Ramp Example on Page 17
= MINUTES
ALARM = SET POINT VALUESV =ALARM SET POINT VALUE
Table 5.7 Code Assignments and Description of Alarm Modes

Ramp and Soak Function
The ETR-9090 can be programmed as either a fixed set
point controller or as a two segment ramp and soak
control. The ramp-up rate is determined by the “rr”
setting. This setting can be adjusted in the range of
0-360°F (200°C) per minute. The ramp rate function is
disabled if the “rr”is set to 0. The soak function is
accomplished by configuring the alarm relay to act as
timer. To use this function, set ALA1 to 12. The alarm
relay will be closed at start-up and it will stay closed
until the process temperature has remained at the set
point temperature for the time period set in ASP1. The
ASP1 setting is in minutes. When the alarm relay
opens, the process temperature will drop at an
uncontrolled rate. The heater power must be wired in
series from the main relay through the alarm relay. The
control will now operate as a guaranteed soak control.
Please note the following example: The ramp rate “rr”
is set to 5°F per minute. The ALA1 is set to 12, and the
ASP1 is set to 30 (minutes). When the unit is turned
on, the process will climb at 5°F per minute to the set
point of 175°F. Once the set point has been reached,
the timer will activate. After 30 minutes, the alarm
relay will open. The process temperature falls. The
process will repeat every time power has been switched
off and on to the controller. See Diagram 1 at right.
175
150
125
100
75
020 40 60 80 90
°F
30 Minutes
Alarm Relay
OFF
TIME/Minutes
10 30 50 70
ON
Process Value
= 12
= 30
175
150
125
100
75
020 40 60 80 90
°F
30 Minutes Alarm Relay
OFF
TIME/Minutes
10 30 50 70
ON
Process Value
= 13
= 30
Set point
DIA. 2 Single Event
Single Event Function
The single event function may be used to control
external devices such as lights, bells or locks. It could
also be used to alert the operator when a guaranteed
soak time has been reached. To use this function, set
ALA1 to 13. The alarm relay will now operate as a
timer. The relay will be open at start-up. Once the set
point temperature has been reached and the time
period set in ASP1 has elapsed, the alarm relay will
close. The relay will remain closed until power to the
Table 5.7 (Continued)
Descriptions of Alarms
Process High Alarm: Alarm is actuated whenever the process value rises above the alarm set point. Changing
the control set point does not affect the process alarm trip point.
Process Low Alarm: Alarm is actuated whenever the process value falls below the alarm set point. Changing
the control set point does not affect the process alarm trip point.
Deviation High Alarm: Alarm is actuated whenever the process value goes above the control set point by a
predetermined (alarm Value) amount. Changing the control set point changes the alarm set point value
maintaining the same deviation from the control set point.
Deviation Low Alarm: alarm is actuated whenever the process value falls below the control set point by a
predetermined (alarm Value) amount. Changing the control set point changes the alarm set point value
maintaining the same deviation from the control set pint. This alarm value is a negative number.
Inhibited alarms do not energize the alarm relay the first
time the process temperature enters the alarm area.
From the second time the process temperature enters
the alarm area, the Inhibited Alarm offers ON as a nor-
mal alarm. For some systems, it is useful to bypass the
first alarm section while the system is heating up.
control has opened. The cycle will repeat each time the
control is energized. Note Diagram No. 2 below.
DIA. 1 Ramp and Soak

HEAT SOURCE HEAT TRANSFER
MEDIUM
SENSOR
375°FPART BEING HEATED
OR "WORK" 330°F
MOLD
Display Shift
In certain applications it is desirable to shift the con-
trollers indicated value from its actual value. This can be
easily accomplished with this control by using the dis-
play shift function. Cycle the control to the para-
meter by using the “Scroll”pushbutton. The number you
adjust here, either positive or negative, will be the
amount that the process value (PV) will be shifted from
the actual value. This amount will be the same across
the entire range of the control. Note the example stated
below.
The desired temperature at the part to be heated is 330
degrees F. In order to achieve that temperature, the
DISPLAY BEFORE
INPUT SHIFT. DISPLAY AFTER INPUT SHIFT.
ADJUST SV TO 330.
Figure 5.5 Display Shift
controlling value or the temperature at the sensor must be
375 degrees F. Due to the design and position of the
components of the system, the sensor could not be
placed any closer to the work.
Thermal gradients (different temperatures) are common
and necessary to an extent in any thermal system for
heat to be transferred from one point to another.
The difference between the two temperatures is 45
degrees F. You should input –45 as to subtract 45
degrees from the actual process value (PV). Cycle the
control back to the process value after making this
adjustment.
DISPLAY AFTER SHIFT AND SV
ADJUSTMENT

Section 6: CALIBRATION PROCEDURE
Changing these values can make the control useless because it can be put out of calibration. Do not
attempt to re-calibrate this temperature controller unless you have an adequate calibration instrument
available. This must be used to simulate the sensor input.
WARNING!
The controller must operate under power for at least 45
minutes before starting the calibration procedure. This
allows the internal components to reach the proper
operating temperature. Connect the calibrating instru-
ment to the ETR control and power leads.
STEP:
1.) Press and release the scroll key ( ) cycling
through the parameters to make certain they are cor-
rect. Note the display flow chart on pages 10 & 11. Long
scrolls (pressing the button for 6 seconds) must be used
where indicated. Check parameters such as ,input
type, degrees C or degrees F and resolution. The span
of the control ( ) and ( ) must be extended out
to their maximum values. Example: when using a type
“J”thermocouple the low range value must be –58
degrees F (–50 deg. C) and the high range value
must be 1832 degrees F (1000 deg. C). These values
are listed in the chart on page two for other sensor
types. The span of the control can be narrowed to your
preferred range after the calibration procedure is com-
pleted.
2.) Press the scroll button again for a long scroll and the
low calibration parameter ( ) will be displayed.
Adjust the input simulator to the value indicated in the
chart to the right. This value must also match the value
in the controls display. Correct if necessary. Press the
button for exactly 6 seconds to calibrate the low (or
zero) calibration point.
3.) Press the scroll button again and the high calibration
parameter ( ) will be displayed. Adjust the input sim-
ulator to the high calibration (span) value as indicated in
the chart. Adjust the controller to the same value. Press
the button for exactly 6 seconds to calibrate the
high (or SPAN) calibration point.
4.) The calibration is now complete. Press the scroll but-
ton again and process value and setpoint value will
appear.
Check intermediate values to test mid-range calibration
accuracy. The procedure can be repeated again if the
accuracy of the controller is not acceptable. Also you
can easily add an arbitrary offset value if desired during
the calibration procedure by changing the simulator
value.
Calibration can be recorded in the accompanying chart.
CALIBRATION VALUES
NOTE: The above values must be used for correct cali-
bration.
T/C Type ‘J’RTD DIN
SENSOR SENSOR
32°F32°F
1112°F 752°F
:Low Calibration parameter
:High Calibration parameter
CALIBRATION RECORD
Control Date Calibrated Date Next
No.: Calibrated: By: Calibration Due: