Thermocouple Input Modules
FEATURES
• Wide Variety of Input Types
• Standard Package and Pin-out
• Single 5V Power Supply
• 12-Bit Resolution
• Optical Isolation from Input to
Output
• Cold Junction Temperature
Compensated Connector Included
• Intermix With G5 Digital Modules
on the Same Rack
• Meets the Requirements of IEEE
472
• UL, CSA, CE Certified (OpenLine only)
73L-IT
73G-IT
CIRCUITRY
G5
G5: Connector
Wiring
THERMO-
COUPLE
T
COLD
REFERENCE
AMP
T
1
N/C
N/C
V/F
+
–
OMEGA
CONNECTOR
TYPE SMP
INCLUDED
2
+5V
SQUARE-
WAVE
OUTPUT
GROUND
3
DC/DC
CONVERTER
V
S
V
S-
+
–
MODULE
Thermocouple Wire Colors
Type
+
White
Yellow
Blue
Black
–
Red
Red
Red
Red
4
5
V
S
10KΩ
J
K
T
R
ISOLATION
I/O Modules
I/O
32
OpenLine
®
I/O MODULE
PIN #
NC 1
1
OpenLine
®
:
Connector Wiring
5.23K
9
MODULE ID
CH. A
–
+
CH. B
–
+
SIGNAL
CONDITIONING
8
NC 2
2
COLD
JUNCTION
TEMP.
COMP.
RXD
+
–
OMEGA
CONNECTOR
TYPE SMP
INCLUDED
A/P
µP
OPTICAL
ISOLATION
7
10K
Vs
6
5
TXD
NC 3
3
+
Vcc
–
SIGNAL
CONDITIONING
MODULE
ISOLATED
DC/DC
CONVERTER
NC 4
TERMINAL
BLOCK #
4
COLD
JUNCTION
TEMP.
COMP.
Thermocouple Wire Colors
Vs
–
GND
Type
J
K
T
R
+
White
Yellow
Blue
Black
–
Red
Red
Red
Red
Grayhill, Inc. • 561 Hillgrove Avenue • LaGrange, Illinois
60525-5997 • USA • Phone: 708-354-1040 • Fax: 708-354-2820 • www.grayhill.com
Thermocouple Input Modules
SPECIFICATIONS: By Part Number
Type/Function
G5
Specifications
Number of Inputs
Resolution
Absolute Accuracy @ 25°C
1, 2
Accuracy Drift w/Temp.
2
Maximum Offset
Maximum Gain (0 to 60°C)
Serial Data Format
Serial Data Packet
Step Response Time
3
Input Temperature Range
Maximum Overload
Logic Voltage Range
Maximum Logic Supply
Current @ 5V dc
Module ID (Pin 9)
Isolation Voltage
Field to Logic
Field to Power
Module to Module
Channel A to Channel B
Environmental Conditions
Operating Temperature
3
Storage Temperature
Units
bits
°C/count
°C
PPM/°C
PPM/°C
1 Ch.
12
0.18
+/- 3.0
+/- 100
+/- 55
12-bit packet
—
2.5
0 to 700
(32-1292)
—
4.5 to 5.5
150
—
2500
2500
2500
—
0 to 60
-25 to 85
1 Ch.
12
0.25
+/- 3.0
+/- 100
+/- 55
12-bit packet
—
2.5
-100 to 924
(-148-1695)
—
4.5 to 5.5
150
—
2500
2500
2500
—
0 to 60
-25 to 85
1 Ch.
12
0.23
+/- 3.0
+/- 100
+/- 55
12-bit packet
—
2.5
0 to 960
(32-1760)
—
4.5 to 5.5
150
—
2500
2500
2500
—
0 to 60
-25 to 85
1 Ch.
12
0.10
+/- 3.0
+/- 100
+/- 55
12-bit packet
—
2.5
-200 to 224
(-328-435)
—
4.5-5.5
150
—
2500
2500
2500
—
0-60
-25-85
73G-ITCJ
Grayhill Part Number
73G-ITCK
73G-ITCR
73G-ITCT
mS
°C (°F)
V
Vdc
mA/Ch.
KΩ
Vrms
Vrms
Vrms
°C
°C
Type/Function
OpenLine
®
Grayhill Part Number
73L-ITCJ
Units
bits
°C/count
°C
PPM/°C
PPM/°C
2 Ch.
12
0.34
+/- 1.0
+/- 50
+/- 100
Right Justified,16-bit
115.2 Kb, N, 8, 2
100
-210 to 1200 (-346 to 2192)
+/- 6
4.75 to 5.25
38
5.23
2500
2500
2500
None
-40 to 85
-55 to 100
2 Ch.
12
0.36
+/- 1.0
+/- 50
+/- 100
Right Justified,16-bit
115.2 Kb, N, 8, 2
100
-100 to 1372 (-148 to 2502)
+/- 6
4.75 to 5.25
38
5.23
2500
2500
2500
None
-40 to 85
-55 to 100
2 Ch.
12
0.16
+/- 0.4
+/- 50
+/- 100
Right Justified,16-bit
115.2 Kb, N, 8, 2
100
-240 to 400 (-400 to 752)
+/- 6
4.75 to 5.25
38
5.23
2500
2500
2500
None
-40 to 85
-55 to 100
73L-ITCK
73L-ITCT
Specifications
Number of Inputs
Resolution
Absolute Accuracy @ 25°C
1, 2
Accuracy Drift w/Temp.
2
Maximum Offset
Maximum Gain (0 to 60°C)
Serial Data Format
Serial Data Packet
Step Response Time
3
Input Temperature Range
Maximum Overload
Logic Voltage Range
Maximum Logic Supply
Current @ 5V dc
Module ID (Pin 9)
Isolation Voltage
Field to Logic
Field to Power
Module to Module
Channel A to Channel B
Environmental Conditions
Operating Temperature
3
Storage Temperature
1
2
I/O Modules
mS
°C (°F)
V
Vdc
mA/Ch.
KΩ
Vrms
Vrms
Vrms
°C
°C
Includes offset, gain, non-linearity and repeatability error terms.
Accuracy and drift graphs are available in Bulletin #753.
3
Time required for output to change within 1% of final reading.
Available from your local Grayhill Distributor.
For prices and discounts, contact a local
Distributor, a local Sales Office or Grayhill.
Grayhill, Inc. • 561 Hillgrove Avenue • LaGrange, Illinois
60525-5997 • USA • Phone: 708-354-1040 • Fax: 708-354-2820 • www.grayhill.com
I/O
33
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