Vaisala HMT360Series - Chapter 6 Operation Errors; Cleaning the Sensor from Glycol in a Natural Gas Application

Operation errors ____________________________________________________________________
Vaisala _________________________________________________________________________ 32
CHAPTER 6
OPERATION ERRORS
The following indicates an operation error of the
HMT360:
• Analog output(s) current drops below 4 mA
• Display shows ERROR
• LED on the cover is lit and no calibration is going on (transmitters
without a display)
In the case of error:
• Check that the sensor is connected properly
• Check if there is condensed water in the probe, if yes, let the probe dry
Cleaning the sensor from glycol in a natural
gas application
If a glycol layer on the VAISALA HUMICAP
®
sensor is disturbing
the moisture measurement, the sensor can be cleaned on site soaking
the sensor to de-ionized water or to IPA (isopropanol, propan-2-ol).