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4. Check the calibration is correct:
5.9
PROCEDURES: PRESSURE INDICATOR
Do the procedure as follows:
1. Connect the instrument to the pressure standard.
2. Let the equipment get to a stable temperature (minimum: 60
minutes since the last power on).
3. Use the calibration menu (See Section 5.4) to do a two-point
calibration.
•
4. Check the calibration is correct:
•
•
•
•
From the datasheet use the values in the Accuracy column.
Page 92 of 105
•
Select the applicable Voltage (10V) or Current (24V)
(measure) function (See Section 5.7).
10V
24V
•
Check the error is within limits (See Table 5-6).
Table 5-6 Voltage (source) error limits
Source
V
10
24
Zero and +FS for gauge sensors.
Select the applicable pressure function.
Apply the following pressure values.
0, 20, 40, 60, 80, 100, 80, 60, 40, 20 (%FS).
Apply the following pressure values.
-200, -400, -600, -800, -600, -400, -200, 0 mbar.
Check the error is within limits
Calibrator
uncertainty
(V)
0.0001
0.0004
[EN] English – 109M4017 Revision -
Druck DPI612
Permitted
DPI612 error
(V)
0.0015
0.0036
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