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Calibrating the Pressure T
ransmitter
3-13
IM CA700-01EN
1
2
3
4
5
6
7
Index
Adjusting the Pressure Transmitter
11.
In the calibration display, press
Adjust (F4)
.
A display for monitoring the pressure transmitter output appears.
Adjust at 100% of span.
Finishes adjustment
Increases the adjustment point
Decreases the adjustment point
Outputs the loop power for the adjustment point
(current if the source function is set to current,
voltage if the source function is set to voltage)
12.
Press
Span100% (0%) (F1)
,
Step Up (F2)
, and
Step Down (F3)
to set the adjustment point.
The adjustment points are the same as the calibration points.
13.
From the pressure pump, apply the pressure for the adjustment point. The pressure pump
output is displayed on the CA700.
14.
Press
Loop On (F4)
. The CA700 supplies a 5 VDC loop voltage and measures the loop
current. The F4 key changes to Loop Off.
If the source function is set to DC current or DC voltage, press
Source On (F4)
. The CA700
generates the 0% DC current or DC voltage. The F4 key changes to Source Off.
15.
Adjust the pressure transmitter so that its output value displayed on the CA700 is within the
tolerance.
16.
Adjust the pressure transmitter at all calibration points. After making adjustments, press
Adjust
Done (F5)
or
ESC
.
The calibration display returns.
3.4 Calibrating the Pressure Transmitter