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DIFFERENTIAL PRESSURE TRANSMITTER - USER GUIDE
d. Straight Threaded Connection
Picture 1: The length of pressure transmitter thread should be longer
than the depth of the thread to ensure an effective seal with the head
gasket.
Picture 2: The length of pressure transmitter thread should be shorter
than the depth of the thread to ensure an effective seal with the root
gasket.
e. Cable Protection Conduit
When using Explosion-proof pressure transmitters in hazardous
locations, a metal Explosion-proof conduit should be used to connect
the cable into the threading box, and lead to a non-hazardous
location.
WARNING: Do not open when an explosive atmosphere is present.
WARNING: A seal shall be installed withing 50 mm of the enclosure.
f. Zero Point Calibration
• Perform the calibration after completing the installation because the
mounting position will affect the zero setting.
• The transmitter must be isolated from the process.
• No pressure or medium on the measuring diaphragm, the system is
under atmospheric conditions.
• Power connection please refer to Local LCD Display Interface sections.
• Please set PV=0 after three weeks of installation to ensure the best
accuracy
• Set PV=0 at least once a year.
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