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[6] Specifications
6-1 Insulation Resistance Measuring Block
1. Rated voltage
2. Measuring voltage/current characteristics
3. Measuring ranges
4. Measuring accuracy 2 MΩ/20 MΩ/200 MΩ ranges:
5. Applied voltage indication
6-2 AC Voltage Measuring Block
1. Measuring range
2. Measuring accuracy Within ± (1% of reading + 0.5% of range +
3. Input resistance
DG525: 500 V DC/250 V DC, 2 ranges
DG251: 250 V DC/125 V DC, 2 ranges
When measuring terminals are open
DG525: 500 V DC range — 600 V (+20% max.)
> 500 V guaranteed at 500 kΩ
250 V DC range — 300 V (+20% max.)
> 250 V guaranteed at 250 kΩ
DG251: 250 V DC range — 300 V (+20% max.)
> 250 V guaranteed at 250 kΩ
125 V DC range — 150 V (+20% max.)
> 125 V guaranteed at 125 kΩ
When measuring terminals are shorted
Approx. 1.5 mA max.
0 to 2 MΩ/1 to 20MΩ/10 to 200MΩ/
100 to 2000MΩ, 4 auto range switching
Within ± (2% of reading + 2 digits)
2000 MΩ range:
Within ± (5% of reading + 2 digits)
Red LED with 5 mm dia.
0 to 600 V max.
0 to 200 V/10 to 600 V, 2 auto range
switching
1 digit)
Frequency: 50 to 400 Hz
1 MΩ
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