RTD Input Modules
FEATURES
• Standard Package and Pin-out
• Single 5V Power Supply
• 12-Bit Resolution
• Optical Isolation from Input to
Output
• Intermix With Digital Modules on
the Same Rack
• Meets the Requirements of
IEEE 472
• UL, CSA, CE Certified (OpenLine only)
• OpenLine
®
has 2-wire, 3-wire and
4-wire versions
73L-ITR3100 (4100)
73L-ITR100
73G-ITR
CIRCUITRY
G5
2 WIRE RTD
G5: Connector
Wiring
3 WIRE RTD
BLACK
BLACK
RED
RED
BLACK
RED
RED
G
OMEGA
CONNECTOR
TYPE MTP
MALE AND
FEMALE
(INCLUDED)
OMEGA
CONNECTOR
TYPE MTP
MALE AND
FEMALE
(INCLUDED)
BLACK
BLACK
4 WIRE RTD
BLACK
T
RTD
T
T
1
SIGNAL
CONDITIONING
AMP
N/C
2
+5V
SQUARE-
WAVE
OUTPUT
GROUND
3
–
N/C
DC/DC
CONVERTER
+
G
OMEGA
CONNECTOR
TYPE MTP
MALE AND
FEMALE
(INCLUDED)
–
+
G
V
S
V
S-
V/F
4
5
V
S
10KΩ
73G-ITR100
73G-ITR100
73G-ITR100
ISOLATION
I/O Modules
I/O
34
OpenLine
®
: 2 Wire RTD
I/O MODULE
PIN #
1
2
1
2
–
2.5V
4.53K
+
SIGNAL
CONDITIONING
AND
FILTER
5.23K
CHANNEL A
9 MODULE ID
8 RXD
CH. A
A/D
CH. B
µP
OPTICAL
ISOLATION
2.5V
7 TXD
10K
6 Vcc
5 GND
4.53K
3
4
TERMINAL
BLOCK #
3
4
+
SIGNAL
CONDITIONING
AND
FILTER
Vs
CHANNEL B
–
Vs
ISOLATED
DC/DC
CONVERTER
Grayhill, Inc. • 561 Hillgrove Avenue • LaGrange, Illinois
60525-5997 • USA • Phone: 708-354-1040 • Fax: 708-354-2820 • www.grayhill.com
RTD Input Modules
CIRCUITRY
OpenLine
®
: 3 or 4 Wire RTD
Circuits connected on 3-wire version
B4 B3
–
B2 B1 A4 A3
+
–
A2
+
A1
100µA
5V
5.23K
SIGNAL
CONDITIONING
AND
FILTER
CHANNEL A
9 MODULE ID
8
CH. A
A/D
CH. B
µP
OPTICAL
ISOLATION
TXD
NC 1
NC 2
NC 3
NC 4
1
2
3
4
100µA
5V
SIGNAL
CONDITIONING
AND
FILTER
ISOLATION
7
10K
6
5
RXD
CHANNEL B Vs
–
Vs
ISOLATED
DC/DC
CONVERTER
Vcc
GND
OpenLine
®
: Connector Wiring
3 WIRE RTD
4 WIRE RTD
PHOENIX CONTACT
G
–
+
A2
NC
G
–
+
A2
A1
S
CONNECTOR
(INCLUDED)
A4
B4
A3
B3
B2
A1
B1
A4
B4
A3
B3
B2
B1
73L-ITR3100
73L-ITR4100
SPECIFICATIONS: By Part Number
Type/Function
G5, OpenLine
®
Specifications
Number of Inputs
Resolution
Absolute Accuracy @ 25°C
1, 2
Full Range Deflection
Temperature Coefficient
Serial Data Format
Serial Data Packet
Step Response Time
3
Input Temperature Range
RTD Type
Maximum Overload
Logic Voltage Range
Max. Logic Supply Current@5Vdc
Module ID (Pin 9)
Isolation Voltage
Field to Logic
Field to Power
Module to Module
Channel A to Channel B
Environmental Conditions
Operating Temperature
Storage Temperature
1
2
Grayhill Part Number
73G-ITR100
Units
bits
°C/count
1 Ch.
12
0.10
+/- 0.8
DIN 43760 standard
0.00385 (European)
12-bit packet
—
2.5
-50-350 (-58-662)
100 ohm platinum
—
4.5-5.5
150
N/A
2500
2500
2500
—
0 to +60°C
-40 to +85°C
2 Ch.
12
0.098
+/- 0.3
DIN 43760 standard
0.00385 (European)
Right Justified, 16-bit
115.2Kb, N, 8, 2
42
-50-350 (-58-662)
100 ohm platinum
+/- 6
4.75-5.25
38
5.23
2500
2500
2500
None
-40 to +85°C
-55 to -100°C
2 Ch.
12
0.098
+/- 0.3
DIN 43760 standard
0.00385 (European)
Right Justified, 16-bit
115.2Kb, N, 8, 2
42
-50-350 (-58-662)
100 ohm platinum
+/- 6
4.75-5.25
38
5.23
2500
2500
2500
None
-40 to +85°C
-55 to +100°C
73L-ITR100
73L-ITR3100/73L-ITR4100
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 to 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.
I/O
35
Grayhill, Inc. • 561 Hillgrove Avenue • LaGrange, Illinois
60525-5997 • USA • Phone: 708-354-1040 • Fax: 708-354-2820 • www.grayhill.com
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