Wiring; Wiring Precautions; Wiring Examples; Figure 19 - 2-Wire Sensor - Honeywell 2MLF-RD4A User Manual

3. Installation and Wiring

3.2. Wiring

d) Do not install or remove the module to/from the base while the power supply
is turned on.
3.2 Wiring

Wiring precautions

Separate the cable for external input signals of RTD input module and keep it away from
the alternating current cables to avoid surge or inductive noise produced from the
alternating current wire.
1. Cable should be selected considering the ambient temperature and value of the
current. The maximum size of the cable should not be less than standard cable of
AWG22 (0.3mm
2. Do not let the cable too close to a hot device or material and in direct contact with oil
for a long period, as it can cause damage or abnormal operation due to short-circuit.
3. Check the polarity before wiring.
4. Do not wire using high-voltage line or power line, as it can produce inductive
hindrance causing abnormal operation or defect.

Wiring examples

42 Resistance Temperature Detector 2MLF-RD4A User's Guide
2
).
Figure 19 – 2-Wire sensor
Honeywell
R200
September 2010