Wire Connection - Dwyer Instruments ISDP series Specifications-Installation And Operating Instructions

Use Model A-231 shielded cable with 4 pin Female M-12 connection.
TRANSMITTER
-------2-Wire Operation- An external power supply delivering 10 - 35 VDC with minimum
current capability of 40 mA DC (per transmitter) must be used to power the control loop.
See Fig. C for connection of the power supply, transmitter, and receiver. The range of the
appropriate receiver load resistance (RL) for the DC power supply voltage available is
expressed by the formula and graph in Fig. D.
POWER SUPPLY VOLTAGE - VDC (2-WIRE CONNECTION)
1.800.561.8187
A-231 M-12 Cable Colors
PIN 1 is Brown (positive)
PIN 3 is Blue (negative)

2-WIRE CONNECTION

ISDP
1500
1400
1300
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100
50
0
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M-12 Connector
2
3
1
4
RECEIVER
Fig. C
MAXIMUM VALUE (1250Ω)
Vps-10.0
R MAX=
L 20mA DC
OPERATING
5 10 13 15 20
25
VDC
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Fig. D
3
+
POWER
SUPPLY
mA
10-35 VDC
REGION
35 40
30
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