Microsensor MDM4901FL, Operation Manual

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5) The protection of transmitter is IP65
。
6) Prevent leak, friction and temperature difference error, to prevent
dregs settling on the tube affecting the diaphragm.
7) The transmitter has been calibrated when out of the factory, the
customer can operate the transmitter without calibration, but
checking the installation and electrical connection correct or not is
necessary. The transmitter can work when excitation is
connected, but the signal output is more reliable after 30 minutes.
8) Ban to pulling the cable violently, and to prevent the diaphragm
damaging don’t poke the diaphragm with metal still objects.
MDM4901FL piezo-resistive differential pressure transmitter
allows the customers to adjust the zero and Span output signals
while you own a standard pressure controller. While adjusting, for
the transmitter with plug connection, remove the socket on the
top of housing (take care not to break the cable), then trim “Zero”
and “Span” buttons to adjust. For the transmitter with cable
connection, you need to use a wrench slightly screw the cap and
you will find the Zero and Span calibrators on the top of housing.
Restore them when finish.
If the transmitter is fail to work, the customer should contact with
factory checking the reasons, and return to factory for repair.
Caution
：
do not poke the pressure-leading hole with metal wire or
something hard; and do not pres
4 Electric Connection
4.1 The transmitter is connected with the outside circuit