Instruction Manual

30
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
F1
89
4
1
–
5
2
0
6
3
.
F2 F3
7
CE ENTER
HOME
MEASURE / SOURCE
3W
mA+
TC
V
mA
Loop
+
V
Hz
–
Ω
+
4W
mA–
MEASURE
–
–
+
HAND PUMP
PRESSURE
MODULE
Optional RS-232 or USB Cable
(See section 11.4)
COM PORT USB PORT
OR
F1 F2 F3
CE ENTER
89
4
1
–
5
2
0
6
3
.
7
HOME
MEASURE / SOURCE
3W
mA+
TC
V
mA
Loop
+
V
Hz
–
Ω
+
4W
mA–
MEASURE
–