Copyright 2013 Baker Hughes Company.
148 | DPI
620G Instruction Manual–English
Chapter
12.
Calibration Procedures
5. Check the calibration is correct:
a. Select the applicable pressure function via the Calibrator Task Menu.
b. Apply the following pressure values for absolute sensors:
%FS: 0, 20, 40, 60, 80, 100
%FS: 100, 80, 60, 40, 20, 0
c. Apply the following pressure values for gauge sensors:
%FS: 0, 20, 40, 60, 80, 100
%FS: 100, 80, 60, 40, 20, 0
d. Check the error is within limits.
e. Refer to the sensor datasheet and use the values in the total uncertainty column.
f.
The specified values include an allowance for temperature changes, reading stability for
one year, and the uncertainty of the standard used for calibration.
12.15 Procedures: TERPS USB
Refer to the user manual K0473, Druck TERPS. Refer to Section
12.14 for procedure.
When the calibration is complete, the instrument automatically sets a new calibration date in the
sensor.
12.16 Procedures: RTD
-
INTERFACE
Do the procedure as follows:
1. Connect the RTD
-
Interface to the DPI
620 Genii.
2. Connect the RTD probe to the temperature standard.
3. Let the equipment get to a stable temperature (minimum: 1
hour since the last power on).
4. Use the calibration menu (see Section
12.1) to do a two-point temperature (resistance)
measure calibration (0 to 400
Ω range):
•
Zero and +FS
Table
12
-
18: Calibration Pressures (Absolute Sensors)
Pressure Range
Nominal Applied Pressure mbar (psi)
bar (psi)
Zero
+FS
350
mbar (5.0)
<
1.0 (0.02)
+FS
2
bar (30.0)
<
5.0 (0.07)
+FS
7
bar (100.0)
<
20.0 (0.29)
+FS
20
bar (300.0)
<
50.0 (0.73)
+FS
350 bar (5000)
Use atmospheric pressure as
zero.
+FS
