Grayhill, Inc. • 561 Hillgrove Avenue • LaGrange, Illinois 60525-5997 • USA • Phone: 708-354-1040 • Fax: 708-354-2820 • www.grayhill.com
I/O 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)
CIRCUITRY
Thermocouple Wire Colors
Type + –
J White Red
K Yellow Red
T Blue Red
R Black Red
+5V
1
2
3
4
5
GROUND
AMP
V/F
DC/DC
CONVERTER
V
S
V
S-
THERMO-
COUPLE
V
S
T
T
N/C
N/C
COLD
REFERENCE
SQUARE-
WAVE
OUTPUT
10KΩ
–
+
–
+
OMEGA
CONNECTOR
TYPE SMP
INCLUDED
MODULE
Thermocouple Input Modules
G5 G5: Connector
Wiring
OpenLine®
Thermocouple Wire Colors
Type + –
J White Red
K Yellow Red
T Blue Red
R Black Red
–+
–+
OMEGA
CONNECTOR
TYPE SMP
INCLUDED
MODULE
OpenLine®:
Connector Wiring
SIGNAL
CONDITIONING
COLD
JUNCTION
TEMP.
COMP.
SIGNAL
CONDITIONING
COLD
JUNCTION
TEMP.
COMP.
A/P µP OPTICAL
ISOLATION
ISOLATED
DC/DC
CONVERTER
CH. A
– + CH. B
– +
Vs
Vs–
10K
5.23K
ISOLATION
I/O MODULE
PIN #
TERMINAL
BLOCK #
NC
NC
NC
NC
9
8
7
6
5
1
2
3
44
3
2
1MODULE ID
RXD
TXD
Vcc
GND
73L-IT 73G-IT
I/O
32
I/O Modules
Grayhill, Inc. • 561 Hillgrove Avenue • LaGrange, Illinois 60525-5997 • USA • Phone: 708-354-1040 • Fax: 708-354-2820 • www.grayhill.com
Type/Function Grayhill Part Number
G5 73G-ITCJ 73G-ITCK 73G-ITCR 73G-ITCT
Specifications Units
Number of Inputs 1 Ch. 1 Ch. 1 Ch. 1 Ch.
Resolution bits 12 12 12 12
°C/count 0.18 0.25 0.23 0.10
Absolute Accuracy @ 25°C1, 2 °C +/- 3.0 +/- 3.0 +/- 3.0 +/- 3.0
Accuracy Drift w/Temp.2
Maximum Offset PPM/°C +/- 100 +/- 100 +/- 100 +/- 100
Maximum Gain (0 to 60°C) PPM/°C +/- 55 +/- 55 +/- 55 +/- 55
Serial Data Format 12-bit packet 12-bit packet 12-bit packet 12-bit packet
Serial Data Packet — — — —
Step Response Time3mS 2.5 2.5 2.5 2.5
Input Temperature Range °C (°F) 0 to 700 -100 to 924 0 to 960 -200 to 224
(32-1292) (-148-1695) (32-1760) (-328-435)
Maximum Overload V————
Logic Voltage Range Vdc 4.5 to 5.5 4.5 to 5.5 4.5 to 5.5 4.5-5.5
Maximum Logic Supply
Current @ 5V dc mA/Ch. 150 150 150 150
Module ID (Pin 9) KΩ————
Isolation Voltage
Field to Logic Vrms 2500 2500 2500 2500
Field to Power Vrms 2500 2500 2500 2500
Module to Module Vrms 2500 2500 2500 2500
Channel A to Channel B — — — —
Environmental Conditions
Operating Temperature3°C 0 to 60 0 to 60 0 to 60 0-60
Storage Temperature °C -25 to 85 -25 to 85 -25 to 85 -25-85
SPECIFICATIONS: By Part Number
Type/Function Grayhill Part Number
OpenLine®73L-ITCJ 73L-ITCK 73L-ITCT
Specifications Units
Number of Inputs 2 Ch. 2 Ch. 2 Ch.
Resolution bits 12 12 12
°C/count 0.34 0.36 0.16
Absolute Accuracy @ 25°C1, 2 °C +/- 1.0 +/- 1.0 +/- 0.4
Accuracy Drift w/Temp.2
Maximum Offset PPM/°C +/- 50 +/- 50 +/- 50
Maximum Gain (0 to 60°C) PPM/°C +/- 100 +/- 100 +/- 100
Serial Data Format Right Justified,16-bit Right Justified,16-bit Right Justified,16-bit
Serial Data Packet 115.2 Kb, N, 8, 2 115.2 Kb, N, 8, 2 115.2 Kb, N, 8, 2
Step Response Time3mS 100 100 100
Input Temperature Range °C (°F) -210 to 1200 (-346 to 2192) -100 to 1372 (-148 to 2502) -240 to 400 (-400 to 752)
Maximum Overload V +/- 6 +/- 6 +/- 6
Logic Voltage Range Vdc 4.75 to 5.25 4.75 to 5.25 4.75 to 5.25
Maximum Logic Supply
Current @ 5V dc mA/Ch. 38 38 38
Module ID (Pin 9) KΩ5.23 5.23 5.23
Isolation Voltage
Field to Logic Vrms 2500 2500 2500
Field to Power Vrms 2500 2500 2500
Module to Module Vrms 2500 2500 2500
Channel A to Channel B None None None
Environmental Conditions
Operating Temperature3°C -40 to 85 -40 to 85 -40 to 85
Storage Temperature °C -55 to 100 -55 to 100 -55 to 100
1 Includes offset, gain, non-linearity and repeatability error terms.
2 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.
Thermocouple Input Modules
I/O
33
