Copyright 2013 Baker Hughes Company.
186 | DPI620G Instruction Manual–English
Chapter 12. Calibration Procedures
Note: Values in square brackets [ ] relate to the DPI620G-IS.
12.6 Procedures (CH1): Frequency (Measure or Source)
Only do one frequency calibration: use either the measure function or the source function.
12.6.1 Frequency Calibration (Measure Function)
Use this procedure:
1. Connect the applicable calibration equipment. Refer to Table 12-1.
2. Let the equipment get to a stable temperature (minimum: 5 minutes since the last power on).
3. Set up the equipment as follows:
a. Signal generator:
• Output = 10 V
• Unipolar
• Square wave
• Frequency = 990 Hz.
b. DPI620G:
• Input units = Hz
• Input trigger level = 5 V.
Figure 12-6: Calibration – Frequency Measure CH1 (Range: 50 kHz)
4. Use the Calibration menu (see Section 12.1) to do a one-point frequency calibration.
Table 12-
7
: Voltage (Source) Error Limits
Source (V)
Calibrator Uncertainty
(V)
Permitted DPI620G
Error (V)
Permitted DPI620G-IS
Error (V)
0 0.000004 0.00042 [0.00048]
5 [3] 0.000019 0.00070 [0.00060]
10 [6] 0.000034 0.00010 [0.00072]
15 [9] 0.000049 0.00013 [0.00084]
20 [12] 0.000064 0.00160 [0.00096]
To Next Page
Loading...
Need help?
General
