Ser
ies
651T
/652T
/653T
Is
olator
Us
er
’s
Manual Pr
oc
es
s
Cur
rent T
w
o-
W
ire T
rans
m
itter
s
___________________________________________________________________________________________
- 9
-
IN-
R
250
4-20mA
IN+
OUT+
SNS
+/-0.1%
R
TB1
CHANNEL 1
NOTE 1
NOTE 1
4-20mA
OUT+
NOTE 1
NOTE 1
AC POWER
IN+
SNS
DC SUPPLY
OUT-
4-20mA
NC
OUT+
SHIELDED CABLE
SHIELDED CABLE
+
-
+
-
-
IN+
IN-
R
R
AC POWER
INPUT
XMTR
4-WIRE
NOTE 1
OUT+
IN-
OUT-
DC SUPPLY
4-20mA
IN-
OUT-
SNS
NOTE 1
+
+
250
+
+
2 WIRE
INPUT
NOTE 1
TB1
TB2
OUT-
SNS
CHANNEL 2
+
TB1
+/-0.1%
5-DIGIT
DVM
TB1
4-20mA
4-20mA
SHIELDED CABLE
5-DIGIT
DVM
INPUT
XMTR
4-WIRE
SHIELDED CABLE
4-20mA
OUT+
SHIELDED
CABLE
SHIELDED CABLE
NC
DC SUPPLY
ISOLATED CHANNEL 1
DC SUPPLY
SNS
OUT-
TYPICAL 4-WIRE TRANSMITTER CONNECTION
(W/ OPTIONAL OUTPUT SENSE CONNECTION)
ISOLATED CHANNEL 1
TYPICAL CALIBRATION CONNECTIONS
CONNECTIONS AT CHANNEL 1
MODEL 651T/652T/653T INPUT/OUTPUT
R
XMTR
-
IN+
+
+
DC SUPPLY
SHIELDED
CABLE
OUTPUT CURRENT SENSE
40 TO 200mV (4-20mA)
4-20mA
ADJUSTABLE
PRECISION
CURRENT SOURCE
ISOLATED CHANNEL 1
TYPICAL 2-WIRE INPUT
TRANSMITTER CONNECTION
NC
4501-727B
FIGURE B
A PRECISION 10 OHM RESISTOR
IS BUILT INTO THE OUT- TERMINAL
FOR MONITORING CURRENT VIA
A VOLTMETER FROM SNS TO OUT-.
ELECTRICAL CONNECTIONS
NOTE 1: THIS GROUND CONNECTION IS RECOMMENDED FOR BEST
RESULTS. IF SENSORS ARE INHERENTLY CONNECTED TO GROUND,
USE CAUTION TO AVOID MAKING ADDITIONAL GROUND CONNECTIONS
WHICH COULD GENERATE GROUND LOOPS AND MEASUREMENT ERROR.
TYPICAL 4-WIRE INPUT TRANSMITTER
CONNECTION TO MODEL 653T-0600
(SINGLE INPUT, TWO OUTPUTS)
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