Partlow MIC 8200 User manual

Form 3032
Edition 4 ©July 1993
Updated Jan. 1994
Installation, Wiring, Operation Manual
MIC 8200
Brand

PAGE 2
nformation in this installation, wiring, and operation
manual is subject to change without notice. One
manual is provided with each instrument at the time of
shipment. Extra copies are available at the price
published on the front cover.
Copyright © July 1993, all rights reserved. No part of this
publication may be reproduced, transmitted, transcribed or
stored in aretrieval system, or translated into any language
in any form by any means without the written permission
of the factory.
This is the Fourth Edition of the manual. It was written and
produced entirely on a desk-top-publishing system. Disk
versions are available by written request to the factory -
Advertising and Publications Department.
We are glad you decided to open this manual. It is
written so that you can take full advantage of the features of
your new dual display process controller.
It is strongly recommended that factory equipped applications incorporate
a high or low limit protective device which will shut down the equipment
at a preset process condition in order to preclude possible damage to
property or products.
I
NOTE

PAGE 3
Table of Contents
SECTION 1 - GENERAL Page Number
1.1 Product Description 5
SECTION 2 - INSTALLATION & WIRING
2.1 Installation and Wiring 7
2.2 Input Connections 8
2.3 Output Connections 13
SECTION 3 - CONFIGURATION & OPERATION
3.1 Configuration and Operation 21
3.2 Operation Summary 22
3.3 Configuration Summary 23
3.4 Auto Tune Method 36
3.5 Manual Tuning Method 39
SECTION 4 - CONTROL CAPABILITY
4.1 Control Capability 40
4.2 Control Responses 40
4.3 Direct/Reverse Operation of Control Outputs 40
4.4 On-Off Control 41
4.5 Time Proportioning Control 41
4.6 Current Proportioning Control 41
4.7 Position Proportioning Control 41
4.8 Dual Output Control 43
4.9 Manual Operation of Proportional Outputs 44
4.10 Automatic Transfer Function 44
4.11 Setpoint Adjustments 45
SECTION 5 - SERVICE
5.1 Service 48
5.2 Calibration 48
5.3 Test Mode 52
5.4 Troubleshooting and diagnostics 56
APPENDICES
A - Board Layout - Jumper Positioning
Figure A-1 Power Supply Board 64
Figure A-2 Processor Board 65
Figure A-3 Option Board 66, 67
B - Glossary of terms 68
C - Model Number Hardware Matrix Details 73
D - Specifications 74
E - Software Record/Reference Sheet 77
Warranty Inside back cover

PAGE 4
FIGURES & TABLES
Figure 1-1 Controller Display Illustration 5
Figure 2-1 Panel Opening Sizes and Installation 7
Figure 2-2 Noise Suppression 9
Figure 2-3 Noise Suppression 10
Figure 2-4 Wiring Label 12
Figure 2-5 AC Power 13
Figure 2-6 Thermocouple Input 13
Figure 2-7 RTD Input 14
Figure 2-8 Volt, mV, mADC Input 14
Figure 2-9 24 Volt Transmitter Power Supply 15
Figure 2-10 Remote Setpoint Input 16
Figure 2-11 Remote Setpoint Selection 17
Figure 2-12 Remote Digital Comm. 7 & 8 17
Figure 2-13 Remote Digital Comm. G & H 18
Figure 2-14 Relay Output 18
Figure 2-15 SSR Driver Output 19
Figure 2-16 mADC Output 20
Figure 2-17 Position Proportioning Output 20
Figure 3-1 Front Panel 21
Figure 4-1 Proportional Bandwidth effect on Output 42
Figure 4-2 Dual Proportional Outputs 43
Figure 4-3 Setpoint Ramp Rate Example 45
Figure 4-4 Re-transmission Example 46
Table 3-1 Enable Mode Configuration Procedures 24
Table 3-2 Program Mode Configuration Procedures 29
Table 3-3 Tune Mode Configuration Procedures 35
Table 5-1 Calibration Procedures 48
Table 5-2 Test Procedures and Description 53
FLOW CHARTS
Flow - Calibration 49
Flow - Enable Mode 25
Flow - Program Mode 26
Flow - Test 52
Flow - Tune Mode 34
Flow - Setpoint Select 44

PAGE 5
Product Description 1.1
1.1.1 GENERAL
This instrument is a microprocessor based single loop controller capable of measuring,
displaying and controlling temperature, pressure, flow, and level from a variety of inputs. Most
heating outputs are easily tuned using the instrument’s Auto Tune function with several
choices for control algorithms and control responses.
Control functions, alarm settings and other parameters are easily entered through the front
keypad. All user's data can be protected from unauthorized changes with it’s Enable mode
security system. Battery back-up protects against data loss during AC power outages.
The input is user configurable to directly connect to either thermocouple, RTD, mVDC, VDC or
mADC inputs. Thermocouple and RTD linearization, as well as thermocouple cold junction
compensation is performed automatically. The sensor input is isolated . The instrument can
be specified to operate on either 115VAC or 230VAC power at 50/60Hz. It is housed in an
extruded aluminum enclosure suitable for panel mounting and may be surface mounted using
an optional adaptor. For installation in washdown areas, a watertight cover is available (see
the instrument price list order matrix).
FIGURE 1-1
1.1.2 DISPLAYS
Each instrument is provided with dual digital displays and status indicators as shown in Figure
1-1. The upper digital display is programmable to show the process variable or the deviation
from setpoint value. The lower digital display will be the active setpoint value or the percent-
age of the proportional output indicated by the indicator light. Status indication is as shown
(Figure 1-1). Display resolution is programmable for 0 to 3 decimal places depending upon
the input type selected.
ALRM
OUT1
MAN °C
°F
U
PO2
RSP
PO1
SP2
SP1
PV
MAN
AUTO
TUNE
SP2
SP1
AUTO
OUT2

PAGE 6
1.1.3 CONTROL
The instrument can be programmed for on-off, time proportioning, current proportioning, or
position proportioning control implementations depending on the output(s) specified for the
instrument in the model number. The Auto Tune function can be used for a heating output
assigned to output 1 at the Setpoint 1 value. A second control output is an available option.
Proportional control implementations are provided with fully programmable separate PID
parameters.
1.1.4 ALARM
Alarm indication is standard on all instruments. Alarm type may be set as PROCESS
DIRECT or REVERSE (High or Low), DEVIATION DIRECT or REVERSE (Above or Below
setpoint), or DEVIATION BAND TYPE (Closed or Open within the band). Alarm status is
indicated by LED. An alarm output can be provided by assigning any output(s) SPST relay(s)
or SSR Driver(s) to the alarm.
1.1.5 PROCESS VALUE RE-TRANSMISSION OUTPUT
If an instrument is specified with a mADC current output, this output may be programmed to
operate as a process value re-transmission output (range scaled by user). If an output is
used as a process value output, it is not available for use as a control output.

PAGE 7
PANEL
CUTOUT
92 + or - 0.8
(3.622 + or -
.031)
96.0 (3.78)
96.0
(3.78)
92 + or - 0.8
(3.622 + or - .031)
DIMENSIONS ARE IN MM (IN)
146.8 (5.78)
165.9 (6.53)
Side View
4.8 (.188)
MAX PANEL THICKNESS
90.4
(3.560)
Top View
MOUNTING BRACKE
T
90.4
(3.560)
Installation and Wiring 2.1
Prior to proceeding with installation, verify the AC power input required by the instrument. AC
power input is either 115 VAC or 230 VAC and is specified in the model number and on the
wiring label affixed to the instrument housing. See Figure 2-4 (page 12) for a wiring label
description.
230 VAC models may be converted to 115 VAC operation by the user by changing the
position of jumpers soldered on the Power Supply Board, see Appendix A-1 (page 50) for
details. (Note: 115VAC units cannot be field converted to 230VAC)
Electrical code requirements and safety standards should be observed and installation
performed by qualified personnel.
The electronic components of the instrument may be removed from the housing during
installation. To remove the components, loosen the locking screw located in the lower center
of the instrument’s front panel. Pull the entire instrument straight out of the
housing. During re-installation, the vertically mounted circuit boards should be properly
aligned in the housing. Be sure that the instrument is installed in the original housing. This
can be verified by matching the serial number on the unit to the serial number on the housing.
(Serial numbers are located on the inside of the housing enclosure and on the label on the
underside of the front panel) . This will insure that each instrument is accurate to its published
specifications. The ambient compensator on the rear of the housing enclosure is calibrated to
the electronics of the instrument at the factory.
Recommended panel opening sizes are illustrated below (Figure 2-1). After the opening is
properly cut, insert the instrument housing into the panel opening. Insert the two panhead
screws provided, through the holes in the mounting bracket into the holes in the rear of the
instrument as shown in Figure 2-1. Firmly tighten the screws. Instruments are shipped
standard for panel mounting. To surface mount, an adaptor is required and should be
specified when ordering. For installation in wash-down areas, a watertight cover is available.
FIGURE 2-1 PANEL OPENING SIZES AND INSTALLATION

PAGE 8
Preparation for Wiring 2.2
2.2.1WIRINGGUIDELINES
Electrical noise is a phenomenon typical of industrial environments. The following are
guidelines that must be followed to minimize the effect of noise upon any instrumentation.
2.2.1.1 INSTALLATION CONSIDERATIONS
Listed below are some of the common sources of electrical noise in the industrial environ-
ment:
• Ignition Transformers
• Arc Welders
• Mechanical contact relay(s)
• Solenoids
Before using any instrument near the devices listed, the instructions below should be fol-
lowed:
1. If the instrument is to be mounted in the same panel as any of the listed devices, separate
them by the largest distance possible. For maximum electrical noise reduction, the noise
generating devices should be mounted in a separate enclosure.
2. If possible, eliminate mechanical contact relay(s) and replace with solid state relays. If a
mechanical relay being powered by an instrument output device cannot be replaced, a solid
state relay can be used to isolate the instrument.
3. A separate isolation transformer to feed only instrumentation should be considered. The
transformer can isolate the instrument from noise found on the AC power input.
4. If the instrument is being installed on existing equipment, the wiring in the area should be
checked to insure that good wiring practices have been followed.
2.2.1.2 AC POWER WIRING
Earth Ground
The instrument includes noise suppression components that require an earth ground connec-
tion to function. To verify that a good earth ground is being attached, make a resistance
check from the instrument chassis to the nearest metal water pipe or proven earth ground.
This reading should not exceed 100 ohms. Use a 12 gauge (or heavier) insulated stranded
wire.
Neutral (For 115VAC)
It is good practice to assure that the AC neutral is at or near ground potential. To verify this, a
voltmeter check between neutral and ground should be done. On the AC range, the reading
should not be more than 50 millivolts. If it is greater than this amount, the secondary of this
AC transformer supplying the instrument should be checked by an electrician. A proper
neutral will help ensure maximum performance from the instrument.
2.2.1.3 WIRE ISOLATION
Four voltage levels of input and output wiring may be used with the unit:
• Analog input or output (i.e. thermocouple, RTD, VDC, mVDC or mADC)
• SPST Relays
• SSR driver output
• AC power
The only wires that should be run together are those of the same category. If they need to be
run parallel with any of the other lines, maintain a minimum 6 inch space between the wires.
If wires must cross each other, do so at 90 degrees. This will minimize the contact with each
other, do so at 90 degrees. This will minimize the contact with each other and reduces "cross
talk". "Cross talk" is due to the EMF (Electro Magnetic Flux) emitted by a wire as current
passes through it. This EMF can be picked up by other wires running the same bundle or
conduit.

PAGE 9
In applications where a High Voltage Transformer is used, (i.e. ignition systems) the second-
ary of the transformer should be isolated from all other cables.
This instrument has been designed to operate in noisy environments, however, in some cases
even with proper wiring it may be necessary to suppress the noise at its source.
2.2.1.4 USE OF SHIELDED CABLE
Shielded cable helps eliminate electrical noise being induced on the wires. All analog signals
should be run with shielded cable. Connection lead length should be kept as short as
possible, keeping the wires protected by the shielding. The shield should be grounded at one
end only. The preferred grounding location is the sensor, transmitter, or transducer.
2.2.1.5 NOISE SUPPRESSION AT THE SOURCE
Usually when good wiring practices are followed, no further noise protection necessary.
sometimes in severe electrical environments, the amount of noise is so great tht it has to be
suppressed at the source. Many manufacturers of relays, contactors, etc., supply "surge
suppressors" which mount on the noise source.
For these devices that do not have surge suppressors supplied, RC (resistance-capacitance)
networks and/or MOC (,etal oxide varistors) may be added.
Inductive Coils - MOV's are recommended for transient suppression in inductive coils con-
nected in parallel and as close as possible to the coil. See Figure 2-2. Aditional protection
may be provided by adding an RC network across the MOV.
FIGURE2-2
Contacts - Arcing may occur across contacts when the contact opens and closes. This
results in electrical noise as well as damage to the contacts. Connecting a RC network
properly sized can eliminate this arc.
For circuits up to 3 amps, a combination of a 47 ohm resistor and 0.1 microfarad capacitor
(1000 volts) is recommended. For circuits from 3 to 5 amps, connect 2 of these in parallel.
See Figure 2-3, page 10.
Coil
0.5
mfd
1000V
220
ohms
115V 1/4W
230V 1W

PAGE 10
FIGURE2-3
2.2.2SENSORPLACEMENT(ThermocoupleorRTD)
Two wire RTD's should be used only with lead lengths less then 10 feet.
If the temperature probe is to be subjected to corrosive or abrasive conditions, it should be
protected by the appropriate thermowell. The probe should be positoned to reflect true
process temperature:
In liquid media - the most agitated area.
In air - the best circulated area.
THERMOCOUPLE LEAD RESISTANCE
Thermocouple lead length can affect instrument accuracy since the size (gauge) and the
length of the wire affect lead resistance.
To determine the temperature error resulting from the lead length resistance, use the following
equation:
Terr = TLe * L where; TLe = value from appropriate table below
L = length of leadwire in thousands of feet
TABLE 1
Temperature error in °C per 1000 feet of Leadwire
AWG Thermocouple Type:
No. J K T R S E B N C
10 .34 .85 .38 1.02 1.06 .58 7.00 1.47 1.26
12 .54 1.34 .61 1.65 1.65 .91 11.00 2.34 2.03
14 .87 2.15 .97 2.67 2.65 1.46 17.50 3.72 3.19
16 1.37 3.38 1.54 4.15 4.18 2.30 27.75 5.91 5.05
18 2.22 5.50 2.50 6.76 6.82 3.73 44.25 9.40 8.13
20 3.57 8.62 3.92 10.80 10.88 5.89 70.50 14.94 12.91
24 8.78 21.91 9.91 27.16 27.29 14.83 178.25 37.80 32.64
Inductive
Load
RC
MOV

PAGE 11
TABLE 2
Temperature Error in °F per 1000 feet of Leadwire
AWG Thermocouple Type:
No. J K T R S E B N C
10 .61 1.54 .69 1.84 1.91 1.04 12.60 2.65 2.27
12 .97 2.41 1.09 2.97 2.96 1.64 19.80 4.21 3.66
14 1.57 3.86 1.75 4.81 4.76 2.63 31.50 6.69 5.74
16 2.47 6.09 2.77 7.47 7.52 4.14 49.95 10.64 9.10
18 4.00 9.90 4.50 12.17 12.28 6.72 79.95 10.64 9.10
20 6.43 15.51 7.06 19.43 19.59 10.61 126.90 26.89 23.24
24 15.80 39.44 17.83 48.89 49.13 26.70 320.85 68.03 58.75
Example:
An MIC is to be located in a control room 660 feet away from the process. Using 16 AWG,
type J thermocouple, how much error is induced?
Terr = TLe * L
TLe = 2.47 (°F/1000 ft) from Table 2
Terr = 2.47 (°F/1000 ft) * 660 ft
Terr = 1.6 °F
RTD LEAD RESISTANCE
Rtd lead length can affect instrument accuracy, since the size (gauge) and length of the wire
affect lead resistance.
To determine the temperatire error resulting from the lead length resistance, use the following
equation:
Terr = TLe * L where; TLe = value from Table 3 if 3 wire RTD or Table 4 if 2 wire RTD
L = length of lead wire in thousands of feet.
TABLE 3 3 Wire RTD
AWG No. Error °C Error °F
10 +/-0.04 +/-0.07
12 +/-0.07 +/-0.11
14 +/-0.10 +/-0.18
16 +/-0.16 +/-0.29
18 +/-0.26 +/-0.46
20 +/-0.41 +/-0.73
24 +/-0.65 +/-1.17
TABLE 4 2 Wire RTD
AWG No. Error °C Error °F
10 +/-5.32 +/-9.31
12 +/-9.31 +/-14.6
14 +/-13.3 +/-23.9
16 +/-21.3 +/-38.6
18 +/-34.6 +/-61.2
20 +/-54.5 +/-97.1
24 +/-86.5 +/-155.6
(Continued on next page)

PAGE 12
1
2
3
4
D
C
B
A
RELAY
A
115
230 VA
C
SIGNAL
+
CJ
C
SIGNAL
-
MADE IN U.S.
A
GROUND
INPUT RATINGS:
115/230 VAC 50/60 HZ 15VA MAX
RELAY OUTPUT RATINGS:
115VAC 5.0A RESISTIVE
230VAC 2.5A RESISTIVE
230VAC 1/8 HP
115/230VAC 250VA
MAXIMUM AMBIENT : 55°C
5
6
8
7
E
F
G
H
RETURN
OUT1
4-20mA +
OUT2
4-20mA +
REMOTE
SETPT +
SERIAL
A
SERIAL
B
POS.PROP.
WIPER
POS.PROP.
HIGH
RELAY
C
RELAY
B
CJ
C
(Continued from page 11)
Example:
An application uses 2000 feet of 18 AWG copper lead wire for a 3 wire RTD sensor. What is
the worst case error due to this leadwire length?
Terr = TLe * L
TLe = +/-.46 (°F/1000 ft) from Table 3
Terr = +/-.46 (°F/1000 ft) * 2000 ft
Terr = +/- 0.92°F
FIGURE2-4 WIRINGLABEL

PAGE 13
InputConnections2.3
In general, all wiring connections are made to the instrument after it is installed. Avoid
electrical shock. AC power wiring must not be connected to the source distribution
panel until all wiring connection procedures are completed.
2.3.1INPUTCONNECTIONS
FIGURE2-5
AC Power
Connect 115 VAC hot and neutral to terminals B and A respectively as illustrated below.
Connect 230 VAC as described below. Connect Earth ground to the ground screw as shown.
FIGURE2-6
Thermocouple (T/C) Input
Make thermocouple connections as illustrated below. Connect the positive leg of the thermo-
couple to terminal 3, and the negative to terminal 1. For industrial environments with com-
paratively high electrical noise levels, shielded thermocouples and extension wire are recom-
mended. Be sure that the input conditioning jumpers are properly positioned for a thermo-
couple input. See Appendix A-2 (page 65) and A-3 (page 66 and 67).
230 VAC INSTRUMENT VOLTAG
E
B
A
GROUND
L1
L2
.25 AMP*
FUSE
Rear Vie
w
*Supplied by the custom
e
115 VAC INSTRUMENT VOLTAG
E
L1
L2
B
A
GROUND
.5 AMP*
FUSE
Rear Vie
w
*Supplied by custome
8
7
6
5
4
3
2
1
THERMOCOUPLE INPUT
+
-
300 OHMS
MAXIMUM
LEAD
Rear view

PAGE 14
100 OHM*
PLATINUM
8
7
6
5
4
3
2
1
3 WIRE RTD INPU
T
Rear Vie
w
*Supplied by the custome
8
7
6
5
4
3
2
1
MILLIAMP DC INPUT
+
-
MILLIAMP DC
SOURCE
2.5 OHM SHUNT
RESISTER
REQUIRED
Rear View
Shielded Twisted
Pair
8
7
6
5
4
3
2
1
MILLIAMP DC INPUT
+
-
MILLIAMP DC
SOURCE
250 OHM SHUNT
RESISTER
REQUIRED
Rear View
Shielded Twisted
Pair
FIGURE 2-7
RTD Input
Make RTD connections as illustrated below. For a three wire RTD, connect the resistive leg
of the RTD to terminal 3, and the common legs to terminal 1 and 5. For a two wire RTD,
connect one wire to terminal 1 and the other wire to terminal 3 as shown below. A jumper
wire supplied by the customer must be installed between terminals 1 and 5. Be sure that the
input conditioning jumpers are properly positioned for an RTD input. See
Appendix A-2 (page 65) and A-3 (page 66 and 67).
FIGURE2-8
Volt, mV, mADC Input
Make volt, millivolt and milliamp connections as shown below. Terminal 3 is positive and
terminal 1 is negative. Milliamp input requires a 250 ohm shunt resistor (supplied with the
instrument) installed across the input terminals and by configuring the instrument for either 0
to 5 or 1 to 5 VDC input. If desired, milliamp DC input can be facilitated by installing an
optional 2.5 ohm resistor across the input terminals and configuring the instrument for either 0
to 50 or 10 to 50 mVDC. Be sure that the input conditioning jumpers are properly positioned
for the input type selected. See Appendix A-2 (page 65) and A-3 (page 66 and 67).
8
7
6
5
4
3
2
1
2 WIRE RTD INPU
T
100 OHM*
PLATINUM
10 FEET
LEAD
MAXIMUM
JUMPER*
Rear Vie
w
*Supplied by custome

PAGE 15
FIGURE2-9A
24 Volt Transmitter Power Supply (XP Option)
Make connections as shown below. Terminal 3 is positive (+) and terminal 1 is negative (-).
Be sure the input conditioning jumpers are properly positioned for the input type selected.
See Figure A-2 Processor Board, page 65, and Figure A-3 Option Board, page 66 or 67. Note
the 250 ohm shunt resistor is not required.
FIGURE2-9B
24 Volt Power Supply (XA Option)
Make connections as shown below. Terminal G is positive (+) and terminal H is negative (-).
Be sure the input conditioning jumpers are properly positioned. See Figure A-2 Processor
Board, page 65 and Figure A-3 Option Board, page 66 or 67.
8
7
6
5
4
3
2
1
MILLIVOLT DC INPUT
+
-
MILLIVOLT DC
SOURCE
50 MILLIVOLT DC
MAXIMUM
Rear View
Shielded Twisted
Pair
8
7
6
5
4
3
2
1
VOLT DC INPUT
+
-
VOLT DC
SOURCE
5 VOLT DC
MAXIMUM
Rear View
Shielded Twisted
Pair
+3
2
-1
+
-
Two Wire
Transmitter
H -
G +
24VDC

PAGE 16
FIGURE2-10
Remote Setpoint Input - VDC and mADC and Potentiometer
Input connections are illustrated below. Terminal 8 is positive and terminal 5 is negative.
The remote setpoint input can be configured for either 0 to 5VDC or 1 to 5 VDC input. Make
sure that the voltage input matches the voltage configuration selected in the Program mode.
For mA inputs, a 250 ohm shunt resistor must be installed between terminals 5 and 8. For
remote setpoint using a potentiometer, JU1 on options board must be in MM/PP (see page 66
and 67).
CURRENT DC REMOTE SETPOINT
8
7
6
5
4
3
2
1
-
+
MILLIAMP
SETPOINT
SIGNAL
250 OHM
SHUNT
RESISTER
NEEDED
Rear Vie
w
Shielded Twisted Pai
r
VOLT DC REMOTE SETPOINT
VOLT DC
SETPOINT
SIGNAL
5VDC
MAXIMUM
8
7
6
5
4
3
2
1
-
+
Rear View
Shielded Twisted
Pair
POTENTIOMETER
150 ohm to
10 K ohm
8
7
6
5
4
3
2
1
Rear View

PAGE 17
FIGURE2-11
Remote Setpoint Selection of one of two preset setpoint values (Optional)
A programmable feature allows for the setpoint value to be toggled between two
preselected values when a dry contact closure is sensed between terminals 8 and 5. For
more information see section 3 (page 21).
FIGURE2-12
Remote Digital Communications RS 485 Terminals 7 & 8 (Optional)
If the communications network continues on to other units, connect the shields together, but
not to the instrument. A terminating resistor should be installed at the terminals of the last
instrument in the loop. The shield should be grounded at the computer or the
convertor box, if used. See the Protocol Manual (Form 2878) for more details on the use of
the digital communications option.
8
7
6
5
4
3
2
1
Rear View
DRY CONTACT
(SWITCH, RELAY,
ETC.)
SUPPLIED BY
CUSTOMER
SHIELDED
WIRING IS
RECOMMENDED
8
7
6
5
4
3
2
1
Output 2 cannot be DC Current
FROM HOST
COMPUTER
TO OTHER
INSTRUMENTS
DIGITAL COMMUNICATIONS
CONNECTIONS - TERMINALS 7 & 8
Terminals7&8are
usedforcommunicationswhenthe
modelnumberis82XYX3X,
82XYX5Xwhere
X=anyvalidnumberand
Y=0,1,or2.
NoSecondOutput
4-20mA

PAGE 18
B
A
GROUND
RELAY A
D
C
INPUT
POWER
LOAD
L2
L1
Rear View
FIGURE 2-13
Alternate Remote Digital Communications RS 485 Terminals G & H (Optional)
If the communications network continues on to other units, connect the shields together, but
not to the instrument. A terminating resistor should be installed at the terminals of the last
instrument in the loop. The shield should be grounded at the computer or the
convertor box , if used. See the Protocol Manual (Form 2878) for more details on the use of
the digital communications option.
OutputConnections2.4
FIGURE2-14
Relay Output
Connections are made to relay A as illustrated below. Connect relay(s) B & C (if present) in
the same manner. Relay contacts are rated at 5 amp Resistive load 115 VAC.
TerminalsG&Hare
usedforcommunicationswhenthe
modelnumberis82XY04X,
82XY06Xwhere
X=anyvalidnumberand
Y=3,4,or5.
UsewhenSecondOutputis4-20mA.
B
A
GROUND
D
C
INPUT
POWER
F
E
H
G
Rear Vie
w
Output 3 Must Be 0
From Host
Computer
To Other
Instruments
DIGITAL COMMUNICATIONS
CONNECTIONS - TERMINALS G & H
B
A
GROUND
D
C
INPUT
POWER
F
E
H
G
L2
L1
LOAD
Rear View
RELAY B

PAGE 19
B
A
GROUND
D
C
INPUT
POWER
F
E
H
G
SSR DRIVER (RELAY A)
-
+
SOLID STATE
RELAY
Rear Vie
w
B
A
GROUND
D
C
INPUT
POWER
F
E
H
G
SSR DRIVER (RELAY B)
-
+
SOLID STATE
RELAY
Rear Vie
w
B
A
GROUND
D
C
INPUT
POWER
F
E
H
G
SSR DRIVER (RELAY C
)
Rear Vie
w
SOLID STATE
RELAY
+
-
FIGURE2-15
SSR Driver Output
Connections are made to the solid state relay driver output located in the Relay A position as
shown. The solid state relay driver is a 5 VDC current sink output type. Connect the solid
state relay driver(s) in the Relay B and C position (if present) in the same manner.
B
A
GROUND
D
C
INPUT
POWER
F
E
H
G
RELAY C
L2
L1
LOAD
Rear View

PAGE 20
FIGURE2-16
mADC Output
Connections are made for current outputs 1 or 2 as shown below. Connect the positive lead
to terminal 6 for Output 1 or terminal 7 for Output 2 , the negative leads connect to terminal 5.
Current outputs will operate up to 650 ohms maximum load. The current output(s) can be
selected for either 4 - 20 mADC or 0 - 20 mADC. If dual current outputs are both used,
connect the returns to terminal 5.
FIGURE2-17
Position Proportioning Output
The relay and slidewire feedback connections are made as illustrated below. The relay
assigned to Output 1 will be used to drive the motor in the open direction and the relay
assigned to Output 2 will be used to drive the motor in the closed direction. The minimum
slidewire feedback resistance is 135 ohms, the maximum resistance is 10K ohms.
8
7
6
5
4
3
2
1
DC CURRENT OUTPUT 1
+
-
LOAD
650 OHMS
MAXIMUM
Rear View
Shielded
Twisted
Pair
8
7
6
5
4
3
2
1
DC CURRENT OUTPUT 2
+
-LOAD
650 OHMS
MAXIMUM
Rear View
Shielded
Twisted
Pair
D
C
RELAY
A
5
8
7
E
F
RETURN
+
POS.PROP.
WIPER
POS.PROP.
HIGH
RELAY
B
Modulatin
g
Moto
r
Slidewire
Feedback
Resistance
min. 135
ohms
max. 10K
ohms
L1
L2
Rear Vie
w
OPEN
CLOSE L
H