How to fix a 'Sensor Open' error on a Chromalox DTS-HAZ Thermostat?
- MMadison PattersonJul 25, 2025
If you are getting a 'Sensor Open' error on your Chromalox Thermostat, check if your sensor is correctly connected to the unit.
How to fix a 'Sensor Open' error on a Chromalox DTS-HAZ Thermostat?
If you are getting a 'Sensor Open' error on your Chromalox Thermostat, check if your sensor is correctly connected to the unit.
What to do if my Chromalox Thermostat shows a 'Sensor Shorted' error?
If your Chromalox Thermostat is displaying a 'Sensor Shorted' error, verify that the sensor is correctly connected to the unit.
What causes an 'EEprom memory error' on a Chromalox DTS-HAZ?
If your Chromalox Thermostat shows an 'EEprom memory error', it means the program memory is corrupt. Reprogram the unit and consult the factory.
Explains the meaning of various symbols used in the document.
Instructions for powering the DTS-HAZ/DTS-HAZ-DC unit with AC power.
Overview of essential settings like Setpoint, High/Low Alarms, and Deadband.
Guide for connecting the RTD sensor wire to the unit.
Lists common alarm types, displays, and their corresponding solutions.
Details the electrical, ambient, and temperature ratings for the unit.
Provides guidance on torque values and wire gauge for field wiring.
Step-by-step instructions for safely replacing the unit's fuse.
Explains the meaning of various symbols used in the document.
Instructions for powering the DTS-HAZ/DTS-HAZ-DC unit with AC power.
Overview of essential settings like Setpoint, High/Low Alarms, and Deadband.
Guide for connecting the RTD sensor wire to the unit.
Lists common alarm types, displays, and their corresponding solutions.
Details the electrical, ambient, and temperature ratings for the unit.
Provides guidance on torque values and wire gauge for field wiring.
Step-by-step instructions for safely replacing the unit's fuse.
| Output | SPDT Relay |
|---|---|
| Enclosure Rating | NEMA 4X |
| Switch Type | SPDT |
| Description | Digital Temperature Switch for Hazardous Locations |
| Input | RTD (Pt100, JPt100) or Thermocouple (J, K, T, E, R, S, B, N, C) |
| Accuracy | ±1% of range |
| Enclosure | Cast Aluminum |
| Voltage Rating | 24VAC/VDC, 120VAC, 240VAC |
| Agency Approvals | ATEX, IECEx |