Martel Electronics DMC1400 - Manual (Page 32)

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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