Copyright 2013 Baker Hughes Company.
English–DPI
620G Instruction Manual | 135
Procedures (CH1/CH2): DC mV/Volts (Measure)
Note:
Input positive values for the forward and reverse calibration.
Figure
12
-
3: Calibration – Current Source (Range: +24
mA and
-
24
mA)
5. Check the calibration is correct:
a. Select the applicable Current (source) function via the Calibrator Task Menu.
b. Apply the values that follow:
mA: 0.2, 6, 12, 18, 24
c. Check the error is within limits. Refer to Table
3.
12.4 Procedures (CH1/CH2): DC mV/Volts (Measure)
When recalibrating measure functions for this range, any adjustment will affect the corresponding
source function calibration. The source function must therefore be re-calibrated after adjusting the
measure function.
Do the procedure as follows:
1. Connect the applicable calibration equipment. Refer to Table
1.
2. Let the equipment get to a stable temperature (minimum: 5
minutes since the last power on).
3. Use the calibration menu (see Section
12.1) to do a three-point volts or mV measure
calibration (
-
FS, Zero and +FS) for the applicable set of ranges:
a. mV (measure) ranges:
•
200
mV
Table
12
-
3: Current (Source) Error Limits
Source (mA)
a
a. Negative source values only apply to CH2.
Calibrator Uncertainty (mA)
Permitted DPI
620 Genii Error
(mA)
±
0.2
0.00008
0.0010
±
6
0.00023
0.0016
±
12
0.00044
0.0022
±
18
0.00065
0.0028
±
24
0.00120
0.0034
