Thermistor, Immersion
Installation and Operation
#NSA-A/CP-I-2.5-4X, NSA-A/CP-I-4-4X, NSA-A/CP-I-6-4X, NSA-HH/CP-I-2.5-PB-C, NSA-HH/CP-I-4-PB-C
NSA-HH/CP-I-6-PB-C
– 11/15/2019
Specifications subject to change without notice.
Catalog No. 11-808-785-01
Page
5
of
5
Troubleshooting
Problem
Solution
Sensor reading is incorrect
Verify sensor wiring to controller is not damaged and has continuity.
Verify sensor or wires are not shorted together.
Verify controller is setup for correct sensor curve.
Disconnect wires from sensor terminal block, tighten terminal block
screws down, and take a resistance (ohm) reading with a multimeter.
Compare the resistance reading to the Temperature Vs Resistance
Curves online:
http://www.workaci.com/content/thermistor-curves-0
Verify proper mounting location to confirm no external factors are
affecting reading.
Sensor reads infinity/very high
resistance
Sensor or wires are open.
Sensor reads low resistance
Sensor or wires are shorted together.
Erratic readings
Condensation on PCB board
Bad wire connections.
W.E.E.E. Directive
At the end of their useful life the packaging and product should be disposed of via a suitable recycling center. Do not
dispose of with household waste. Do not burn.
