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4. Zero the pressure module.
5. Test the transmitter at 0 % and 100 % of the span, and adjust as
necessary.
Figure 22. Calibrating a Pressure Transmitter
7. Remote Operation
The calibrator can be remotely controlled using a PC terminal, or by a
computer program running the calibrator in an automated system. It uses an
RS-232 serial port connection for remote operation. With this connection the
user can write programs on the PC, with Windows languages like Visual
Basic to operate the calibrator, or use a Windows terminal, such as Hyper
Terminal, to enter single commands. Typical RS-232 remote configurations
are shown in Figure 23.
Figure 23. Calibrator-to-Computer Connection
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