APT3700N Smart Pressure Transmitter for Nuclear Service Operation Manual M3700N-K01E
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The terminal board of the Transmitter input of the power supply is composed of the 2nd
noise filter. Power supply and high frequency noise's parts are removed from the 1, 2nd
filter. 1st filter is connected to the terminal block and terminal board of the attached EMI
filter.
Terminal board has a fixed housing in the housing, however it can not replace just the
terminal board. So the above terminal board should be handled with the housing
change.
The main and power board has 1,2nd filtering of the power supply of the inner
semiconductor of the filter of creating (3.3 Vdc), processing a pressured value using a
micro controller to measure it.
Main and power board is easy to dissemble and assemble, however when exchanging
with a new board, the parameter has to be reset.
Analog board has a sensor's change should change to a main board’s mike to control
easily, and send with the micro controller.
Analog board is fixed in the sensor module so just exchanging the terminal board is
impossible. The memory inside the analog board has insertion of the transmitter
manufacturer so the analog board's sensor body should be exchanged.
LCD board Safety-Related equipment does not apply.
LCD board Non-Safety-Related equipment does not function, and Transmitter’s
measured value can decipher and display in the field.
LCD board and dissemble and reassemble is easy.
5.5. Maintenance
Also APT3700N Series Transmitter is installed in a function unit that is easy to
Maintenance. It if seems to malfunction, check should be made to see if there is an
outside error before the program of error diagnosis is run.
5.5.1. Test Terminal
There is a test terminal named Personal Socket as a Test. Test terminal and power line
Loop (-) terminal is connected to the each side of the power supply line.
Normally it is following through the Loop current diode.
