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Connecting a TS-58011-774 Platinum RTD Sensor to a DMS Microsmart MSC-MPC controller.

Issue

A TS-58011-774 Platinum RTD sensor is wired to a DMS Microsmart MSC-MPC controller.

What is the maximum and minimum offset value considered acceptable for the sensor to operate accurately?
Can the maximum wire length exceed 200 feet?

Environment

DMS Microsmart controllers

Cause

A large offset of almost 6 degrees must be used to make the reading accurate with a handheld temperature calibration device.

Resolution

There is no maximum and minimum offset value.  However, the length of wire used should not exceed 200 feet.  The recommended wire type is Belden #9501 (AWG24).  If these two wiring requirements are met, then the offset value used will not be "large".

Below is a link to the sensor's installation guide.  Review "Software Setup" starting on page 3 to understand how to calculate the amount of error introduced to the temperature reading by the installed wire.  Use the temperature/resistance table on page 5 to verify that the sensor is accurate then use an appropriate offset value to eliminate the error introduced by the sensor wire.

If necessary, use SOCALC on page 4 to develop custom SCALE and OFSET values.

F-24874 TS-58000 Series Platinum RTD Room Sensor Installation Guidelines

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Last update:
‎2018-09-10 05:05 AM
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