Omega CCT-80 Series User manual

®
User’s Guide
CCT-80
Strain Gage Signal Conditioners

Servicing North America:
USA: One Omega Drive, Box 4047
ISO 9001 Certified Stamford, CT 06907-0047
Tel: (203) 359-1660 FAX: (203) 359-7700
e-mail: [email protected]
Canada: 976 Bergar
Laval (Quebec) H7L 5A1
Tel: (514) 856-6928 FAX: (514) 856-6886
e-mail: [email protected]
For immediate technical or application assistance:
USA and Canada: Sales Service: 1-800-826-6342 / 1-800-TC-OMEGASM
Customer Service: 1-800-622-2378 / 1-800-622-BESTSM
Engineering Service: 1-800-872-9436 / 1-800-USA-WHENSM
TELEX: 996404 EASYLINK: 62968934 CABLE: OMEGA
Mexico and
Latin America: Tel: (95) 800-TC-OMEGASM FAX: (95) 203-359-7807
Servicing Europe:
Benelux: Postbus 8034, 1180 LA Amstelveen, The Netherlands
Tel: (31) 20 6418405 FAX: (31) 20 6434643
Toll Free in Benelux: 06 0993344
e-mail: [email protected]
Czech Republic: Ostravska 767, 733 01 Karvina
Tel: 42 (69) 6311899 FAX: 42 (69) 6311114
e-mail: [email protected]
France: 9, rue Denis Papin, 78190 Trappes
Tel: (33) 130-621-400 FAX: (33) 130-699-120
Toll Free in France: 0800-4-06342
e-mail: [email protected]
Germany/Austria: Daimlerstrasse 26, D-75392 Deckenpfronn, Germany
Tel: 49 (07056) 3017 FAX: 49 (07056) 8540
Toll Free in Germany: 0130 11 21 66
e-mail: [email protected]
United Kingdom: 25 Swannington Road, P.O. Box 7, Omega Drive,
ISO 9002 Certified Broughton Astley, Leicestershire, Irlam, Manchester,
LE9 6TU, England M44 5EX, England
Tel: 44 (1455) 285520 Tel: 44 (161) 777-6611
FAX: 44 (1455) 283912 FAX: 44 (161) 777-6622
Toll Free in England: 0800-488-488
e-mail: [email protected]
omega.comomega.com
TM
OMEGA
®
OMEGAnetSM On-Line Service Internet e-mail
http://www.omega.com [email protected]
It is the policy of OMEGA to comply with all worldwide safety and EMC/EMI regulations that apply.
OMEGA is constantly pursuing certification of its products to the European New Approach Directives.
OMEGA will add the CE mark to every appropriate device upon certification.
The information contained in this document is believed to be correct but OMEGA Engineering, Inc. accepts no liability
for any errors it contains, and reserves the right to alter specifications without notice.
WARNING: These products are not designed for use in, and should not be used for, patient connected applications.

NOTES
TABLE OF CONTENTS
PAGE
Open the Housing . . . . . . . . . . . . . . . . . . . . . . . . 3
Internal Overview . . . . . . . . . . . . . . . . . . . . . . . . 3
Power Supply module MA. . . . . . . . . . . . . . . . . . 4
Changing the Power Supply . . . . . . . . . . . . . . . . 4
Signal Output module MS . . . . . . . . . . . . . . . . . . 5
Changing the Signal Output . . . . . . . . . . . . . . . . 5
Signal Input, module ME Overview. . . . . . . . . . . 6
CCT-80, Electrical Features (Specifications) . . . 7
Signal Input Range Selection. . . . . . . . . . . . . 8
Adjustment and Calibration Procedure . . . . . 8
Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Mechanical Specifications. . . . . . . . . . . . . . . . . 10
Notes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
11
2

PROCEDURE
1. Insert a screwdriver or similar tool in the
points marked c.
2. Turn the screwdriver until the case walls
begin to separate towards Aand B, so the
two side lugs e, are free.
3. Grab the Signal Conditioner body, at the
points marked d‚ and pull it towards C,
until the two side lugs eare out of their
housing and the internal circuits are visible.
See the sketch below for the disassembly of
the circuit boards.
4. Before reinserting the Signal Conditioner
body into the case, the following must be
checked :
-The front label (blue color) must be in its correct position, with terminals 1 and 7
(power supply) separated from the other terminals.
-The three internal modules must be inserted correctly in their internal case guides.
e
FIG.1
75 mm
(2.952")
110 mm
(4.33")
36 mm
(1.417")
45 mm
(1.771")
OUTPUTS / SALIDAS
mA Vdc
INPUT / ENTRADA
SUPPLY / ALIMENTACION
3 4 5 6
9 10 11 12
7
1
+
Lo
H i
+--
PROCEDURE FOR DISASSEMBLY
1. Pull out the "ME" input module towards "a".
2. Pull out the "MS" output module towards "a".
3. Pull out the "MP" input board towards "b".
4. To assemble reverse the procedure.
A. "ME" Input module.
B. "MS" Output module.
C. "MA" Power supply module.
D. "MP" Input Board.
INTERNAL OVERVIEW
TECHNICAL DATA
WEIGHT . . . . . . . . . . . . . . . . . . . 270 g.
HOUSING BASE . . . . . . . . . . . . Polycarbonate, RAL 7032, UL 94 V-1 light grey, IP-40
TERMINAL HOUSING, COVER
AND BLIND PLUGS . . . . . . . . . . Polycarbonate, UL 94 V-2 dark grey, IP-20
WIRE CROSS SECTION : . . . . . 4 mm2
Provided with a snap fastener for attaching to DIN 46277 and DIN EN 50022 (35 x 7.5 mm)
assembly rails.
OPEN THE HOUSING
MECHANICAL
DIMENSIONS
AC
c
c
d
d
e
310
B
FIG.2
AB
Ca
a
D
b
MP
Input board
MA
Power Supply Module
MS Output module
ME Input module

-+10 Vdc
FIG.10
350 Ω
+
-+
-
POWER SUPPLY
The side label, shows
the type and value of
the power supply.
SIGNALOUTPUT
Current SIGNALOUTPUT
Voltage
POWER
SUPPLY
OUTPUTS / SALIDAS
mA Vdc
INPUT / ENTRADA
SUPPLY / ALIMENTACION
3 4 5 6
9 10 11 12
7
1
+
Lo
H i
+--
OUTPUTS
SALIDAS
AC
VOLTAGE
3 4 5 6
1 2
POWER SUPPLY
FUENTE ALIMENTACION
TARE ADJUST
When internal tare
adjust (on the "ME"
input board ) is not
used, the signal
conditionerterminals
3 and 4, must not be
connected.
POWER
SUPPLY
SIGNALOUTPUT
Current SIGNALOUTPUT
Voltage
OUTPUTS / SALIDAS
mA Vdc
INPUT / ENTRADA
SUPPLY / ALIMENTACION
3 4 5 6
9 10 11 12
7
1
+
Lo
H i
+--
OUTPUTS
SALIDAS
AC
VOLTAGE
3 4 5 6
1 2
POWER SUPPLY
FUENTE ALIMENTACION
POWER SUPPLY
The side label,
shows the type
and value of the
power supply.
4-WIRE
BRIDGE
+10 Vdc
350 Ω
+
-+
-
6-WIRE
BRIDGE
WIRING
CONNECTIONS
FIG.9
49
POWER SUPPLY
RECOMMENDED WIRING
The power supply must be connected to terminals 1 and 7. The characteristics of the power supply
are shown on the side label.
WARNING.- If the power supply is dc voltage, be careful with the polarity indicated for each
terminal.
FIG. 3
OUTPUTS / SALIDAS
mA Vdc
INPUT / ENTRADA
SUPPLY / ALIMENTACION
3 4 5 6
9 10 11 12
7
1
+
Lo
H i
+--
PRECAUTIONS
The installation must incorporate safety devices
to protect the operator and the process when
using the Transmitter to control a machine or
process where injury to personnel or damage to
equipment or process, may occur as a result of
failure of the Transmitter.
Power Fuse
supply value
230Vac 50 mA
115Vac 100mA
48Vac 150mA
24Vac 300mA
24 Vdc 300mA
PROTECTIONS
See on table 1 the recommended value of the
fuse for the different power supply availables.
CHANGING THE POWER SUPPLY
The unit is not provided with a system to change the power supply. Therefore if the power supply
must be modified to other value, please replace the module MA for another one appropriate to
the new characteristics. Contact your local distributor for instructions.
TABLE 1
Fuse
Powersupply

FIG.8
"MP" input board
PT1
SIGNAL INPUT RANGE SELECTION
The "MP" input board for this signal conditioner,
doesnot havejumpers becauseit allowsonly one
signal input (0 to 20 mV). To calibrate the signal
conditioner, follow the adjustment and calibration
procedure.
The user can field adjust the tare using the trim-
mer PT1, located on the "MP" input board. See
Fig. 8.
The signal input 0 to 20 mV will be the standard
range for all orders, unless specified otherwise.
ADJUSTMENT AND CALIBRATION PROCEDURE
To calibrate the signal conditioner, use a calibrator or Vdc source from 0 to 20 mVdc.
1. Open the signal conditioner case. (Fig. 2).
2. Check the "MA" module, if the selected power supply is correct. (Table 1).
3. Connect the calibrator to the signal conditioner terminals 5 - 6.
4. Connect a digital multimeter, to the signal output terminals to be used.
5. Power up the signal conditioner with the correct power supply.
6. Adjust the calibrator until it generates the low signal level (0 Vdc).
7. Turn the "ZERO" trimmer (P1), located on the "ME" input module, until the multimeter
shows the desired low signal output level. (For example: 0 Vdc).
8. Adjust the calibrator until it generates the high signal level.
9. Turn the "GAIN" trimmer (P2), located on the "ME" input module, until the multimeter
shows the desired high output level. (For example: 10 Vdc).
10. Repeat steps 6 to 9, until the two values are correct.
TARE ADJUST PROCEDURE
After the connections between the signalconditioner, load celland externalpower supplyare
made, connect a multimeter to the output terminals. Do not forget that the load cell must be
free of load.
If the multimeter does not read 0 Vdc or 4 mA, then adjust the trimmer PT1, located on the
"MP" input board.
Check that the high level of the output signal does not change. If it does adjust the GAIN
trimmer (P2) located on the "ME" input module ( see Fig. 7).
The signal conditioner provides two different analog output
signals, both proportional to the signal input.
Output in Current: 4 to 20 mA, terminals 9 - 10
OutputinVoltage:0to10Vdc,terminals11-12
Do not use both outputs simultaneously. Only one selection
can be made.
The side label shows which one is selected.
SIGNAL OUTPUT module MS
OUTPUTS / SALIDAS
mA Vdc
INPUT / ENTRADA
SUPPLY / ALIMENTACION
3 4 5 6
9 10 11 12
7
1
+
Lo
H i
+--
FIG.5
CHANGING THE SIGNAL OUTPUT
All signal conditioners are delivered as a standard version, with the analog output selected as
4 to 20 mA, unless specified otherwise. To select a 0 to 10 V output, remove jumpers E and
FasshowninFigure6.Othernon-standardoutputvoltageand current rangesmaybeobtained
by adding and/or replacing resistors given in Tables 2 and 3.
Output Value in Ω for :
in mA. R18 R24 R25
0 to 5 ----- 100 -----
0 to 10 ----- 49.9 -----
1 to 5 100 K 124 -----
0 to 20 ----- ------- 24.9
NON STANDARD OUTPUT
CURRENTS
TABLE 2 TABLE 3
NON STANDARD OUTPUT
VOLTAGES
Output Value in KΩ for :
in V. R29 R30 R31 R32
±10 49.9 ----- 200 ----
0 to 1 ----- ----- 11 100
0 to 5 ----- ----- 100 100
1 to 5 ----- 100 66.5 100
EF
R18
R29
R30
R24 R25 R31 R32
FIG.6
Replace or add the indicated
resistors with the values shown
inTables2and3 forthedesired
output.
5
8
"-----" means "Resistor must not be installed"
Jumpers E and F : Closed only if the output is 4 to 20 mA.

INPUT
STANDARD SIGNAL 20 mV
TARE by internal trimmer PT1, located on the "MP"
input board
OUTPUT
0 to 20 mA or 4 to 20 mA RL< 600 Ωmax. 22 mA ±3%
0 to 10 Vdc RL> 1000 Ωmax. 11 V ±3%
ACCURACY ≤0.2 % FS
RESPONSE TIME ≤250 mS
GALVANICISOLATION Input, Output and Power Supply are all isolated
to 2 kVeff. 50 Hz/1 m.
GENERALSPECIFICATIONS
RIPPLE ≤0.5 %
BAND PASS 1.5 Hz (-3 dB)
STORAGETEMPERATURE -30°to +80°C
OPERATINGTEMPERATURE -10°to +60°C
TEMPERATURECOEFFICIENT ≤0.015 %/°C
STANDARD POWER SUPPLY 115 Vac (±10%) 50/60 Hz
POWER CONSUMPTION ≤1.5 VA
TESTVOLTAGE 4 kVeff. 50 Hz/1m.
B
2
1
C
A
FIG.7
Solder pads on solder side
P1 : Output zero adjustment.
P2 : Gain amplifier adjustment.
P2P1
OFFSET ADJUST
Solder pad 1 if closed : Adjust the low range level of the output (Offset positive coarse).
Solder pad 2 if closed : Adjust the low range level of the output (Offset negative coarse).
Jumper A if closed : Adjust the low range level of the output (Offset negative fine).
AMPLIFIER GAIN
Jumper B if closed : Gain at maximum level
Jumper C if closed : Gain at medium level.
Jumpers B and C opened : Gain at minimum level.
SIGNAL INPUT, module ME
OVERVIEW
This module together with the "MP" input board, performs the signal conditioning (see Fig. 2).
This module contains the trimmers and jumpers for the amplifier gain and the low level output
(offset).
The signal input connections are made at Terminals 3, 4, 5 and 6.
This signal conditioner provides connection to 4- or 6-wire strain-gages (load-cells), which
provide a nominal of 2 mV/V or 3 mV/V output with 350 Ωimpedance. See the Connections
Section.
The signal conditioner does not provides the bridge excitation voltage, therefore is necessary
to use an external auxiliary power supply. It is advised that you use the model FAR-1 power
supply, which senses the excitation voltage and compensates the errors due to lead
resistance.
The FAR-1 provides a regulated 10 Vdc output.
TheCCT-80hasaninternalcircuitwhichprovidestheuserwithtareadjustandcompensation.
See the tare paragraph.
CCT-80, ELECTRICAL FEATURES
7
6

INPUT
STANDARD SIGNAL 20 mV
TARE by internal trimmer PT1, located on the "MP"
input board
OUTPUT
0 to 20 mA or 4 to 20 mA RL< 600 Ωmax. 22 mA ±3%
0 to 10 Vdc RL> 1000 Ωmax. 11 V ±3%
ACCURACY ≤0.2 % FS
RESPONSE TIME ≤250 mS
GALVANICISOLATION Input, Output and Power Supply are all isolated
to 2 kVeff. 50 Hz/1 m.
GENERALSPECIFICATIONS
RIPPLE ≤0.5 %
BAND PASS 1.5 Hz (-3 dB)
STORAGETEMPERATURE -30°to +80°C
OPERATINGTEMPERATURE -10°to +60°C
TEMPERATURECOEFFICIENT ≤0.015 %/°C
STANDARD POWER SUPPLY 115 Vac (±10%) 50/60 Hz
POWER CONSUMPTION ≤1.5 VA
TESTVOLTAGE 4 kVeff. 50 Hz/1m.
B
2
1
C
A
FIG.7
Solder pads on solder side
P1 : Output zero adjustment.
P2 : Gain amplifier adjustment.
P2P1
OFFSET ADJUST
Solder pad 1 if closed : Adjust the low range level of the output (Offset positive coarse).
Solder pad 2 if closed : Adjust the low range level of the output (Offset negative coarse).
Jumper A if closed : Adjust the low range level of the output (Offset negative fine).
AMPLIFIER GAIN
Jumper B if closed : Gain at maximum level
Jumper C if closed : Gain at medium level.
Jumpers B and C opened : Gain at minimum level.
SIGNAL INPUT, module ME
OVERVIEW
This module together with the "MP" input board, performs the signal conditioning (see Fig. 2).
This module contains the trimmers and jumpers for the amplifier gain and the low level output
(offset).
The signal input connections are made at Terminals 3, 4, 5 and 6.
This signal conditioner provides connection to 4- or 6-wire strain-gages (load-cells), which
provide a nominal of 2 mV/V or 3 mV/V output with 350 Ωimpedance. See the Connections
Section.
The signal conditioner does not provides the bridge excitation voltage, therefore is necessary
to use an external auxiliary power supply. It is advised that you use the model FAR-1 power
supply, which senses the excitation voltage and compensates the errors due to lead
resistance.
The FAR-1 provides a regulated 10 Vdc output.
TheCCT-80hasaninternalcircuitwhichprovidestheuserwithtareadjustandcompensation.
See the tare paragraph.
CCT-80, ELECTRICAL FEATURES
7
6

FIG.8
"MP" input board
PT1
SIGNAL INPUT RANGE SELECTION
The "MP" input board for this signal conditioner,
doesnot havejumpers becauseit allowsonly one
signal input (0 to 20 mV). To calibrate the signal
conditioner, follow the adjustment and calibration
procedure.
The user can field adjust the tare using the trim-
mer PT1, located on the "MP" input board. See
Fig. 8.
The signal input 0 to 20 mV will be the standard
range for all orders, unless specified otherwise.
ADJUSTMENT AND CALIBRATION PROCEDURE
To calibrate the signal conditioner, use a calibrator or Vdc source from 0 to 20 mVdc.
1. Open the signal conditioner case. (Fig. 2).
2. Check the "MA" module, if the selected power supply is correct. (Table 1).
3. Connect the calibrator to the signal conditioner terminals 5 - 6.
4. Connect a digital multimeter, to the signal output terminals to be used.
5. Power up the signal conditioner with the correct power supply.
6. Adjust the calibrator until it generates the low signal level (0 Vdc).
7. Turn the "ZERO" trimmer (P1), located on the "ME" input module, until the multimeter
shows the desired low signal output level. (For example: 0 Vdc).
8. Adjust the calibrator until it generates the high signal level.
9. Turn the "GAIN" trimmer (P2), located on the "ME" input module, until the multimeter
shows the desired high output level. (For example: 10 Vdc).
10. Repeat steps 6 to 9, until the two values are correct.
TARE ADJUST PROCEDURE
After the connections between the signalconditioner, load celland externalpower supplyare
made, connect a multimeter to the output terminals. Do not forget that the load cell must be
free of load.
If the multimeter does not read 0 Vdc or 4 mA, then adjust the trimmer PT1, located on the
"MP" input board.
Check that the high level of the output signal does not change. If it does adjust the GAIN
trimmer (P2) located on the "ME" input module ( see Fig. 7).
The signal conditioner provides two different analog output
signals, both proportional to the signal input.
Output in Current: 4 to 20 mA, terminals 9 - 10
OutputinVoltage:0to10Vdc,terminals11-12
Do not use both outputs simultaneously. Only one selection
can be made.
The side label shows which one is selected.
SIGNAL OUTPUT module MS
OUTPUTS / SALIDAS
mA Vdc
INPUT / ENTRADA
SUPPLY / ALIMENTACION
3 4 5 6
9 10 11 12
7
1
+
Lo
H i
+--
FIG.5
CHANGING THE SIGNAL OUTPUT
All signal conditioners are delivered as a standard version, with the analog output selected as
4 to 20 mA, unless specified otherwise. To select a 0 to 10 V output, remove jumpers E and
FasshowninFigure6.Othernon-standardoutputvoltageand current rangesmaybeobtained
by adding and/or replacing resistors given in Tables 2 and 3.
Output Value in Ω for :
in mA. R18 R24 R25
0 to 5 ----- 100 -----
0 to 10 ----- 49.9 -----
1 to 5 100 K 124 -----
0 to 20 ----- ------- 24.9
NON STANDARD OUTPUT
CURRENTS
TABLE 2 TABLE 3
NON STANDARD OUTPUT
VOLTAGES
Output Value in KΩ for :
in V. R29 R30 R31 R32
±10 49.9 ----- 200 ----
0 to 1 ----- ----- 11 100
0 to 5 ----- ----- 100 100
1 to 5 ----- 100 66.5 100
EF
R18
R29
R30
R24 R25 R31 R32
FIG.6
Replace or add the indicated
resistors with the values shown
inTables2and3 forthedesired
output.
5
8
"-----" means "Resistor must not be installed"
Jumpers E and F : Closed only if the output is 4 to 20 mA.

-+10 Vdc
FIG.10
350 Ω
+
-+
-
POWER SUPPLY
The side label, shows
the type and value of
the power supply.
SIGNALOUTPUT
Current SIGNALOUTPUT
Voltage
POWER
SUPPLY
OUTPUTS / SALIDAS
mA Vdc
INPUT / ENTRADA
SUPPLY / ALIMENTACION
3 4 5 6
9 10 11 12
7
1
+
Lo
H i
+--
OUTPUTS
SALIDAS
AC
VOLTAGE
3 4 5 6
1 2
POWER SUPPLY
FUENTE ALIMENTACION
TARE ADJUST
When internal tare
adjust (on the "ME"
input board ) is not
used, the signal
conditionerterminals
3 and 4, must not be
connected.
POWER
SUPPLY
SIGNALOUTPUT
Current SIGNALOUTPUT
Voltage
OUTPUTS / SALIDAS
mA Vdc
INPUT / ENTRADA
SUPPLY / ALIMENTACION
3 4 5 6
9 10 11 12
7
1
+
Lo
H i
+--
OUTPUTS
SALIDAS
AC
VOLTAGE
3 4 5 6
1 2
POWER SUPPLY
FUENTE ALIMENTACION
POWER SUPPLY
The side label,
shows the type
and value of the
power supply.
4-WIRE
BRIDGE
+10 Vdc
350 Ω
+
-+
-
6-WIRE
BRIDGE
WIRING
CONNECTIONS
FIG.9
49
POWER SUPPLY
RECOMMENDED WIRING
The power supply must be connected to terminals 1 and 7. The characteristics of the power supply
are shown on the side label.
WARNING.- If the power supply is dc voltage, be careful with the polarity indicated for each
terminal.
FIG. 3
OUTPUTS / SALIDAS
mA Vdc
INPUT / ENTRADA
SUPPLY / ALIMENTACION
3 4 5 6
9 10 11 12
7
1
+
Lo
H i
+--
PRECAUTIONS
The installation must incorporate safety devices
to protect the operator and the process when
using the Transmitter to control a machine or
process where injury to personnel or damage to
equipment or process, may occur as a result of
failure of the Transmitter.
Power Fuse
supply value
230Vac 50 mA
115Vac 100mA
48Vac 150mA
24Vac 300mA
24 Vdc 300mA
PROTECTIONS
See on table 1 the recommended value of the
fuse for the different power supply availables.
CHANGING THE POWER SUPPLY
The unit is not provided with a system to change the power supply. Therefore if the power supply
must be modified to other value, please replace the module MA for another one appropriate to
the new characteristics. Contact your local distributor for instructions.
TABLE 1
Fuse
Powersupply

PROCEDURE
1. Insert a screwdriver or similar tool in the
points marked c.
2. Turn the screwdriver until the case walls
begin to separate towards Aand B, so the
two side lugs e, are free.
3. Grab the Signal Conditioner body, at the
points marked d‚ and pull it towards C,
until the two side lugs eare out of their
housing and the internal circuits are visible.
See the sketch below for the disassembly of
the circuit boards.
4. Before reinserting the Signal Conditioner
body into the case, the following must be
checked :
-The front label (blue color) must be in its correct position, with terminals 1 and 7
(power supply) separated from the other terminals.
-The three internal modules must be inserted correctly in their internal case guides.
e
FIG.1
75 mm
(2.952")
110 mm
(4.33")
36 mm
(1.417")
45 mm
(1.771")
OUTPUTS / SALIDAS
mA Vdc
INPUT / ENTRADA
SUPPLY / ALIMENTACION
3 4 5 6
9 10 11 12
7
1
+
Lo
H i
+--
PROCEDURE FOR DISASSEMBLY
1. Pull out the "ME" input module towards "a".
2. Pull out the "MS" output module towards "a".
3. Pull out the "MP" input board towards "b".
4. To assemble reverse the procedure.
A. "ME" Input module.
B. "MS" Output module.
C. "MA" Power supply module.
D. "MP" Input Board.
INTERNAL OVERVIEW
TECHNICAL DATA
WEIGHT . . . . . . . . . . . . . . . . . . . 270 g.
HOUSING BASE . . . . . . . . . . . . Polycarbonate, RAL 7032, UL 94 V-1 light grey, IP-40
TERMINAL HOUSING, COVER
AND BLIND PLUGS . . . . . . . . . . Polycarbonate, UL 94 V-2 dark grey, IP-20
WIRE CROSS SECTION : . . . . . 4 mm2
Provided with a snap fastener for attaching to DIN 46277 and DIN EN 50022 (35 x 7.5 mm)
assembly rails.
OPEN THE HOUSING
MECHANICAL
DIMENSIONS
AC
c
c
d
d
e
310
B
FIG.2
AB
Ca
a
D
b
MP
Input board
MA
Power Supply Module
MS Output module
ME Input module

NOTES
TABLE OF CONTENTS
PAGE
Open the Housing . . . . . . . . . . . . . . . . . . . . . . . . 3
Internal Overview . . . . . . . . . . . . . . . . . . . . . . . . 3
Power Supply module MA. . . . . . . . . . . . . . . . . . 4
Changing the Power Supply . . . . . . . . . . . . . . . . 4
Signal Output module MS . . . . . . . . . . . . . . . . . . 5
Changing the Signal Output . . . . . . . . . . . . . . . . 5
Signal Input, module ME Overview. . . . . . . . . . . 6
CCT-80, Electrical Features (Specifications) . . . 7
Signal Input Range Selection. . . . . . . . . . . . . 8
Adjustment and Calibration Procedure . . . . . 8
Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Mechanical Specifications. . . . . . . . . . . . . . . . . 10
Notes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
11
2

WARRANTY/DISCLAIMER
OMEGA ENGINEERING, INC. warrants this unit to be free of defects in materials and
workmanship for a period of 13 months from date of purchase. OMEGA Warranty adds an
additional one (1) month grace period to the normal one (1) year product warranty to
cover handling and shipping time. This ensures that OMEGA’s customers receive
maximum coverage on each product.
If the unit should malfunction, it must be returned to the factory for evaluation. OMEGA’s
Customer Service Department will issue an Authorized Return (AR) number immediately
upon phone or written request. Upon examination by OMEGA, if the unit is found to be
defective it will be repaired or replaced at no charge. OMEGA’s WARRANTY does not apply
to defects resulting from any action of the purchaser, including but not limited to
mishandling, improper interfacing, operation outside of design limits, improper repair, or
unauthorized modification. This WARRANTY is VOID if the unit shows evidence of having
been tampered with or shows evidence of being damaged as a result of excessive corrosion;
or current, heat, moisture or vibration; improper specification; misapplication; misuse or
other operating conditions outside of OMEGA’s control. Components which wear are not
warranted, including but not limited to contact points, fuses, and triacs.
OMEGA is pleased to offer suggestions on the use of its various products. However,
OMEGA neither assumes responsibility for any omissions or errors nor assumes
liability for any damages that result from the use of its products in accordance with
information provided by OMEGA, either verbal or written. OMEGA warrants only that
the parts manufactured by it will be as specified and free of defects. OMEGA MAKES
NO OTHER WARRANTIES OR REPRESENTATIONS OF ANY KIND WHATSOEVER,
EXPRESSED OR IMPLIED, EXCEPT THAT OF TITLE, AND ALL IMPLIED WARRANTIES
INCLUDING ANY WARRANTY OF MERCHANTABILITY AND FITNESS FOR A
PARTICULAR PURPOSE ARE HEREBY DISCLAIMED. LIMITATION OF LIABILITY: The
remedies of purchaser set forth herein are exclusive and the total liability of OMEGA
with respect to this order, whether based on contract, warranty, negligence,
indemnification, strict liability or otherwise, shall not exceed the purchase price of the
component upon which liability is based. In no event shall OMEGA be liable for
consequential, incidental or special damages.
CONDITIONS: Equipment sold by OMEGA is not intended to be used, nor shall it be used: (1)
as a “Basic Component” under 10 CFR 21 (NRC), used in or with any nuclear installation or
activity; or (2) in medical applications or used on humans. Should any Product(s) be used in
or with any nuclear installation or activity, medical application, used on humans, or misused
in any way, OMEGA assumes no responsibility as set forth in our basic WARRANTY/
DISCLAIMER language, and additionally, purchaser will indemnify OMEGA and hold OMEGA
harmless from any liability or damage whatsoever arising out of the use of the Product(s) in
such a manner. RETURN REQUESTS / INQUIRIES
Direct all warranty and repair requests/inquiries to the OMEGA Customer Service
Department. BEFORE RETURNING ANY PRODUCT(S) TO OMEGA, PURCHASER MUST
OBTAIN AN AUTHORIZED RETURN (AR) NUMBER FROM OMEGA’S CUSTOMER SERVICE
DEPARTMENT (IN ORDER TO AVOID PROCESSING DELAYS). The assigned AR number
should then be marked on the outside of the return package and on any correspondence.
The purchaser is responsible for shipping charges, freight, insurance and proper packaging
to prevent breakage in transit.
FOR WARRANTY RETURNS, please have
the following information available BEFORE
contacting OMEGA:
1. P.O. number under which the product
was PURCHASED,
2. Model and serial number of the product
under warranty, and
3. Repair instructions and/or specific
problems relative to the product.
FOR NON-WARRANTY REPAIRS,
consult
OMEGA for current repair charges. Have
the following information available
BEFORE contacting OMEGA:
1. P.O. number to cover the COST
of the repair,
2. Model and serial number of product, and
3. Repair instructions and/or specific
problems relative to the product.
OMEGA’s policy is to make running changes, not model changes, whenever an improvement is possible.
This affords our customers the latest in technology and engineering.
OMEGA is a registered trademark of OMEGA ENGINEERING, INC.
© Copyright 1996 OMEGA ENGINEERING, INC. All rights reserved. This document may not be copied,
photocopied, reproduced, translated, or reduced to any electronic medium or machine-readable form, in whole or
in part, without prior written consent of OMEGA ENGINEERING, INC.
UUSASA
MADE
ININ

Where Do I Find Everything I Need for
Process Measurement and Control?
OMEGA…Of Course!
TEMPERATURE
MU Thermocouple, RTD & Thermistor Probes,
Connectors, Panels & Assemblies
MU Wire: Thermocouple, RTD & Thermistor
MU Calibrators & Ice Point References
MU Recorders, Controllers & Process Monitors
MU Infrared Pyrometers
PRESSURE, STRAIN AND FORCE
MU Transducers & Strain Gauges
MU Load Cells & Pressure Gauges
MU Displacement Transducers
MU Instrumentation & Accessories
FLOW/LEVEL
MU Rotameters, Gas Mass Flowmeters & Flow Computers
MU Air Velocity Indicators
MU Turbine/Paddlewheel Systems
MU Totalizers & Batch Controllers
pH/CONDUCTIVITY
MU pH Electrodes, Testers & Accessories
MU Benchtop/Laboratory Meters
MU Controllers, Calibrators, Simulators & Pumps
MU Industrial pH & Conductivity Equipment
DATA ACQUISITION
MU Data Acquisition & Engineering Software
MU Communications-Based Acquisition Systems
MU Plug-in Cards for Apple, IBM & Compatibles
MU Datalogging Systems
MU Recorders, Printers & Plotters
HEATERS
MU Heating Cable
MU Cartridge & Strip Heaters
MU Immersion & Band Heaters
MU Flexible Heaters
MU Laboratory Heaters
ENVIRONMENTAL
MONITORING AND CONTROL
MU Metering & Control Instrumentation
MU Refractometers
MU Pumps & Tubing
MU Air, Soil & Water Monitors
MU Industrial Water & Wastewater Treatment
MU pH, Conductivity & Dissolved Oxygen Instruments
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