Druck DPI620G Series User Manual

Copyright 2013 Baker Hughes Company.
178 | DPI620G Instruction Manual–English
Chapter 12. Calibration Procedures
12. Calibration Procedures
Druck has a calibration service that obeys international standards and thus is traceable.
Druck recommends you send the instrument to the manufacturer or an approved service agent
fo
r calibration. If you use an alternative calibration facility, make sure that it uses the standards
that are in this chapter. Only approved personnel must calibrate the device.
12.1 Before you start the calibration
Get your parts only from Druck or an approved Druck supplier. To do an accurate calibration of
the DPI620G device, use the following:
• Calibration equipment specified in Table 12-1.
• A stable temperature environment: 21 ± 1°C (70 ± 2°F).
Keep the equipment in the calibration environment for a minimum of two hours before you start a
c
a
libration procedure. Make sure that the time and date on the instrument are correct. Note that
the CH1 specification does not apply to the DPI620G-B.
Table 12-1
: Calibration Equipment Specification
Function
Calibration Equipment
a
Measure Source
Current (CH1 or CH2) Current (mA) calibrator.
For accuracy, see Table 12-2,
C
urrent (mA) calibrator.
For accuracy, see Table 12-3.
Voltage (CH1) Voltage calibrator.
For accuracy, see Table 12-5.
V
oltage calibrator.
For accuracy, see Table 12-7.
Voltage (CH2) Voltage calibrator.
For accuracy, see Table 12-5.
–
M
illivolts (CH1) Voltage mV calibrator.
For accuracy, see Table 12-4.
V
oltage mV calibrator. For
ac
curacy, see Table 12-6.
M
illivolts (CH2) Voltage mV calibrator.
For accuracy, see Table 12-4.
–
M
illivolts TC mV (CH1) Voltage mV calibrator.
For accuracy, see Table 12-1
4.
Voltage mV calibrator.
For accuracy, see Table 12-14.
Frequency (CH1) Signal generator.
Total error: 0.3 ppm or better
Frequency meter.
Total error: 0.3 ppm or better.
Resolution: 8 digits (minimum).
Voltage calibrator.
For accuracy, see Table 12-
7.
R
esistance (CH1) Standard resistor (100R, 200R,
30
0R, 400R, 1k, 2k, 4k).
Total uncertainty: 20 ppm or
be
tter.
An ohmmeter or an RTD
me
asurement system with the
specified excitation currents, refer
to Table 12-1
3.
Cold Junction (CH1) Calibrated K type thermocouple.
Accuracy: 50 mK for -5
to 28°C (23
to 82.4°F)
Accuracy: 50 mK for -5
to 28°C (23
to 82.4°F)
Cold Junction (CH1) Thermocouple temperature
re
ference unit (0°C).
Accuracy: 30 mK
–
Calibration Procedures

Druck DPI620G Series Specifications

General

Brand	Druck
Model	DPI620G Series
Category	Test Equipment
Language	English