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4
element to seal the passing-hole after connecting the wires. In case you can’t
find a sealing element on site, please installing the transmitter with the wires
hole face down to prevent from entering water. The signal wire can be floating
on the ground or any one point in the signal loop grounded. The transmitter
housing grounded or not grounded are both okay.
The stability of supply voltage for transmitter is not strict, even if the voltage
wave around 1V, the influence on output signal is very small or can be ignored.
The transmitter is capacitive coupled grounded, while you are checking the
insulation resistance, take care NOT use high volts megohm meter, only max
100V. megohm meter can be allowed for checking the circuits. The maximum
current for the transmitter with 4
~
20mADC output will not exceed 22mA DC.
4.2 Remote control
a) Connecting with the computer
The user can be easily through HART-CONFIG TOOL to connect with HART
intelligent pressure transmitter by HART/RS232 interface to realize the