Megger Baker DX - Technical Specifications, Calibration, and Applicable Standards

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Technical Specifications, Calibration, and
Applicable Standards
Table 3. Baker DX series specifications.
Model-specific tests 4 and 6 kV
models
6 kV HO
model
12 kV
model
12 kV
HO
model
15/15A
15 kV
models
DC tests
Voltage accuracy: 3% 3% 3% 3% 3%
Maximum resistance:1 > 25/50 GΩ > 50 GΩ > 75 GΩ > 75 GΩ > 100 GΩ
Current accuracy: 5% 5% 5% 5% 5%
Minimum resistance: 1 MΩ 1 MΩ 5 MΩ 5 MΩ 1 MΩ
Maximum output current: 5 mA 5 mA 5 mA 10 mA 5 mA
Over-current trip: 1.2 mA 1.2 mA 1.2 mA 1.2 mA 1.2 mA
Repetition rate (typical) 5 Hz 5 Hz 5 Hz 5 Hz 5 Hz
Surge tests
Capacitor size (nF): 40 100 40 100 100
Surge energy: 0.32 J / 0.72 J 1.8 J 2.88 J 7.2 J 11 J
Short circuit current: 280 A /340 A 450 A 600 A 800 A 700 A
65 μH load voltage: 4 kV / 6 kV 6 kV 12 kV 12 kV 15 kV
Surge voltage accuracy:2 12% 12% 12% 12% 12%
1) Test current must be greater than 100 nA, and test voltage must be less than
75 percent of maximum voltage.
2) Surge voltage accuracy meets/based on Z540 Standard four times
measurement uncertainty (calibrated within three percent).
Table 4. Technical specifications—physical characteristics.
Physical
specifications
4/6 kV and 6/12 kV
HO models
DX-15 model DX-15A model
Dimensions: 42 cm x 20 cm x 45 cm
(16.5 in x 8 in x 17.7 in)
47 cm x 20 cm x 56 cm
(18.5 in x 8 in x 22 in)
47 cm x 20 cm x 56 cm
(18.5 in x 8 in x 22 in)
Weight: 15.4 kg (34 lbs) 22.7 kg (50 lbs) 25 kg (55 lbs)