Vitrek 944i - Resistance Measurement Specifications

Range Current Limit
100 to 500 VDC 20mA
500 to 4000 VDC 35mA
4000 to 4500 VDC 30mA
4500 to 5000 VDC 25mA
5,000 to 7,000 VDC* 5mA
* Requires option DC-7
DC Current Limits with option DC-10:
Range Current Limit
100 to 10,000 VDC 10mA
HIGH RESISTANCE MODE
(Insulation Resistance)
Resistance Range Minimum Resistance Test Voltage
2.6GΩ 100KΩ
100VDC
13GΩ 500KΩ
500VDC
26GΩ 1MΩ
1,000VDC
65GΩ 2.5MΩ
2,500VDC
Accuracy: Combined uncertainty of DC Voltage Output + Current Measurement Accuracy
LOW RESISTANCE MODE
(Earth Continuity)
Full Scale
8.5Ω Maximum including lead resistance.
Resolution
1mΩ
Test Current
50mA
Lead Compensation
Automatic offset circuit "nulls" out two wire lead resistance
Accuracy
0.3% of reading + 30mΩ (up to 5Ω)
General Specifications
Arc Detection Sensitivity
User selectable 3 microseconds to 30 microseconds
Display
40 character alphanumeric LCD
High Voltage Indicator
Lightning bolt illuminated by independent output voltage monitor.