Procedures (Ma Input) - Baker Hughes Druck DPI 800 Bedienungsanleitung

Ranges: a
30.0 psi (2 bar)
100.0 psi (7 bar)
300.0 psi (20 bar)
Ranges: sg
≥ 5000 psi (350 bar)
4. To make sure that the calibration is correct, select the applicable pressure task (Table 2) and
apply these pressure values:
• Ranges g/d or sg: 0, 20, 40, 60, 80, 100 (%FS)
Then: Go back to 0 in the same steps.
Then (three-point calibration only): -20, -40, -60, -80, -100 (%FS).
Then: Go back to 0 in the same steps.
• Ranges a: 0, 20, 40, 60, 80, 100 (%FS)
Then: Go back to 0 in the same steps.
5. Make sure that the error is in the specified limits:
• Standard accuracy:
The specified accuracy (refer to "Specification Data" on page 22) includes an allowance
for temperature changes, reading stability for one year, and the uncertainty of the
standard used for calibration.
In step 4, make sure that the error between the applied pressure and the reading on the
unit is not more than 0.015% FS.
• Premier precision:
The specified precision (refer to "Specification Data" on page 22) includes an allowance
for temperature changes and the uncertainty of the standard used for calibration.
In step 4, make sure that the error between the applied pressure and the reading on the
unit is not more than the specified value for Premier precision.

4.3 Procedures (mA input)

1. DPI 802/802P only. Connect the instrument to the calibration equipment (Figure 7).
2. Let the equipment get to a stable temperature (minimum: 5 minutes since the last power on).
3. Use the calibration menu (Table 6) to do a three-point calibration (-FS, Zero and +FS). The
display shows the applicable instructions to complete the calibration.
4. To make sure that the calibration is correct, select the applicable mA task (Table 2) and
apply these values:
• mA: -55, -40, -24, -18, -12, -6, 0 (open circuit)
Then: 0, 6, 12, 18, 24, 40, 55.
Nominal Applied Pressure
psi (mbar)
Zero
< 0.07 (5.0)
< 0.29 (20.0)
< 0.73 (50.0)
Nominal Applied Pressure
psi (mbar)
Zero
Use atmospheric pressure
as zero.
+FS
+FS
+FS
+FS
+FS
+FS
Copyright 2003 Baker Hughes Company.
English–DPI 800/802 Instruction Manual | 21