Baker Hughes Druck DPI 620 Genii, Инструкция по эксплуатации

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142 | DPI 620G Instruction Manual–English
Chapter 12. Calibration Procedures
• Nominal positive full-scale ohms - make a 4-wire connection to the 400 Ω resistor.
b. Range: 400 Ω - 4k Ω
• Nominal 400 Ω - make a 4-wire connection to the 400 Ω resistor.
• Nominal positive full-scale ohms - make a 4-wire connection to the 4k Ω resistor.
Figure 12 - 8: Calibration – Resistance Measure CH1 (Range: 400 Ω)
4. Check the calibration is correct
a. Select the applicable Resistance (measure) function via the Calibrator Task Menu.
b. Make a 4-wire connection to the applicable standard resistor and measure the value.
c. Check the error is within limits. Refer to Table
12 - 11.
12.9 Procedures (CH1): True Ohms (Measure)
Do the procedure as follows:
1. Repeat procedure in Section
12.8; in step 3 and 4 select ‘True Ohms’.
Table 12 - 11: Resistance (Measure) Error Limits
Standard Resistor (Ω) Resistor Uncertainty (Ω)
Permitted DPI 620 Genii Error
(Ω)
0 (short circuit) – 0.020
100 0.002 0.032
200 0.004 0.044
300 0.006 0.056
400 0.008 0.068
1000 0.020 0.300
2000 0.040 0.410
4000 0.080 0.640