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
CIRCUITRY
G5
73L-ITR3100 (4100)
G5: Connector
Wiring
73L-ITR100
73G-ITR
2 WIRE RTD
3 WIRE RTD
4 WIRE RTD
RTD
T
T
T
SIGNAL
CONDITIONING
AMP
BLACK
BLACK
BLACK
BLACK
BLACK
BLACK
1
N/C
RED
RED
RED
RED
2
N/C
+
G
OMEGA
+
G
OMEGA
G
OMEGA
CONNECTOR
CONNECTOR
CONNECTOR
+5V
3
DC/DC
CONVERTER
V S
V S-
V/F
TYPE MTP
MALE AND
FEMALE
TYPE MTP
MALE AND
FEMALE
TYPE MTP
MALE AND
FEMALE
SQUARE-
WAVE
OUTPUT
GROUND
4
5
V S
10K ?
73G-ITR100
(INCLUDED)
73G-ITR100
(INCLUDED)
73G-ITR100
(INCLUDED)
OpenLine ? : 2 Wire RTD
I/O MODULE
PIN #
1
1
2.5V
+
4.53K
SIGNAL
CONDITIONING
AND
CHANNEL A
5.23K
9 MODULE ID
FILTER
2
2
2.5V
CH. A
A/D
CH. B
μP
OPTICAL
ISOLATION
8 RXD
7 TXD
4.53K
10K
3
4
3
4
+
SIGNAL
CONDITIONING
AND
FILTER
Vs
CHANNEL B
Vs
ISOLATED
DC/DC
CONVERTER
6 Vcc
5 GND
TERMINAL
BLOCK #
I/O
34
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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