How much are DO readings effected by temperature change with the LDO Model 2 sensor?

Document ID

Document ID TE4142

Version

Version 1.0

Status

Status Published

Published Date

Published Date 09/15/2016
Question
How much are DO readings effected by temperature change with the LDO Model 2 sensor?
Summary
Temperature change and how effects on the LDO Model 2 DO sensor readings.
Answer
The DO reading is very strongly influenced by temperature.  The DO value will change by about .25 ppm per degree centigrade.  The LDO probe monitors temperature using a thermistor that is located on the end of the probe underneath the sensor cap.  Since the thermistor is potted into the probe, the probe will have to be replaced if the temperature reading is incorrect.

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