Vitrek 944i 5kV AC, 6 kV DC Hipot, IR & Ground Continuity Tester

Rent 5kV AC,6 kV DC Hipot, Insulation Resistance & Ground Continuity Tester
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Datasheet Accessory Kit

Vitrek's 944i Hipot Tester combines AC dielectric strength testing (AC Hipot) with DC dielectric strength testing (DC Hipot), Insulation Resistance (HV IR) and a low ohmsic Earth Continuity measurement all in one feature-rich automated instrument. This compact dielectric tester lets you measure four electrical safety test parameters from a single test connection-all with the touch of a button.


 

Features:
 

  • AC Hipot to 5KV,10KV Optional
  • DC Hipot to 7KV with 14KV Optional
  • Earth Continuity Testing 1mΩ
  • Insulation Resistance to 500GΩ
  • Arc Detection with 10 msec shutdown
  • Programmable
  • GPIB, RS232 Interfaces Optional




Electrical Specifications:
 

AC DIELECTRIC MODE:
 

AC Voltage Output:
 

Voltage uncertainty is equal to the square root of the selected output. (V1/2)
 

 Output

Formula

Accuracy

100 VAC

(100)1/2

±  10.0 VAC

500 VAC

(500)1/2

±  22.4 VAC

1000 VAC

(1000)1/2

±  31.6 VAC

5000 VAC

(5000)1/2

±  70.7 VAC


Output Frequency:  50Hz to 100Hz with 1Hz resolution independent of line power frequency.


Output Waveform:  Digitally synthesized, low distortion sine wave.
 

AC Current Sensing (AC Leakage):
 

Range   

Resolution  

Accuracy

12.00uA

10nA

0.5% of reading ± 1uA

1.200mA

1uA

0.5% of reading ± 10uA

35.0mA

100uA

0.5% of reading ± 500uA


Current Sensing:  Resistive current (in-phase), reactive current (out-of-phase) or total current.
 

AC Current Limits:
 

Range

Current Limit

50 to 5000 VAC

35 mA


DC DIELECTRIC MODE:
 

DC Voltage Output:
 

Voltage uncertainty is equal to the square root of the selected output times 0.75. (V1/2 *0.75)
 

Output

Formula

Accuracy

100 VDC

(100)1/2 * 0.75

± 7.5 VDC

500 VDC

(500)1/2 * 0.75

± 16.8 VDC

1000 VDC

(1000)1/2 * 0.75

± 23.7 VDC

5000 VDC

(5000)1/2 * 0.75

± 53.0 VDC

7000 VDC*

(7000)1/2 * 0.75

± 62.7 VDC

* Requires option DC-7


DC Current Sensing (DC Leakage):
 

Range

Resolution

Accuracy

0 - 1720 ηA

1ηA

0.4% of reading ± 8 ηA

1.720 μA - 17.30 μA

0.01μA

0.3% of reading ± 0.05μA

17.30μA - 1.785mA

0.001mA

0.3% of reading ± 0.015 mA

1.785 mA - 35.50 mA

0.01 mA

0.3% of reading ± 0.1 mA


Voltage Coefficient:  15pA/V
 

DC Current Limits:
 

Range

Current  Limit

50 to 5,000 VDC

35.5mA

5,000 to 7,000 VDC*

19mA

*Requires DC-7 option

DC Voltage Output with Optional DC-10:

Voltage uncertainty is equal to the square root of the selected output times 1.5.

(AC Voltage specs remain the same as the standard 944 as described above)


Examples:
 

Output

Formula

>Accuracy

100 VDC

100)1/2 * 1.5

± 15.0 VDC

500 VDC

(500)1/2 * 1.5

± 33.5 VDC

1000 VDC

(1000)1/2 * 1.5

± 47.4 VDC

5000 VDC

(5000)1/2 * 1.5

± 106.1 VDC

7000 VDC*

(7000)1/2 * 1.5

± 125.5 VDC

10000 VDC*

(10000)1/2 * 1.5

± 150.0 VDC


DC Current Limits with option DC-10 :

(Output power is limited to 165 Watts)
 

Range

Current  Limit

50 to 10,000 VDC

15.5mA

10,001 to 14,000 VDC

10.0 mA


HIGH RESISTANCE MODE:
(Insulation Resistance)


(Firmware limits to minimum of 1.9k ohmss.  Output power can not exceed 165 Watts for standard units, 135 Watts for CLT option and 130 Watts for FR-4 mod).
 

Resistance Range

(guaranteed in spec)

Minimum Resistance

Test Voltage

2.6GΩ

1.9KΩ

>= 50VDC

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

10 Ω Maximum including lead resistance.

Resolution

1mΩ    

Test Current

50 mA

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. Fast = 1 arc in a 100mS period. Medium = 15 arcs in a 100mS period. Slow = 50 arcs in a 100mS period.

Display

40 character alphanumeric LCD

High Voltage Indicator

Lightning bolt illuminated by independent output voltage monitor.  Audible alarm sounds prior to voltage output unless disabled in firmware.

Voltage Resolution

Output resolution is typically 3-4 volts AC or DC on standard units. DC-10 and AC-10 outputs have a 6-8 volt resolution. LVIR output resolution is 0.2 volts. Measurement resolution is 1 Volt on all units, all options.

Dwell Time Accuracy

+2 seconds/minute, -500mS/minute

Slew Rate

1 volt/second to 30000 volts/second. Firmware limits all ramps to a minimum total time of 1 second. Actual ramp times vary dependent on load. Ramp times are consistent when testing similar devices. Test engineers should always observe the test with an oscilloscope and adjust parameters to achieve desired results with each specific device under test.

Limits

Test automatically aborts when digitally stored minimum or maximum limit is exceeded. Current and resistance minimums will not trigger failures until >0.8 seconds of dwell time has elapsed to allow for settling of DUT at dwell voltage.

Remote Interface Option "IF-4"

GPIB - IEE-488.2 Subset compatible
RS-232C - 9600 Baud
Parallel - IBM/Centronics compatible
VICL - Vitrek Interface Control Loop (slaved to RS-232 interface)

Accuracy

Stated specifications are bipolar and apply for one year within ± 5°C from calibration temperature (20 to 25°C).

Temperature Coefficient

0.1 times stated accuracy per °C beyond calibration temperature window

Calibration

Traceable to the National Institute of Standards and Technology (NIST). Automatic "Covers on" calibration, internal or external.  Calibration constants stored in non-volatile memory.

Warm up Time

No warm up time is required for units stored in ambient temperatures ranging from 64°F to 82°F (18°C to 28°C).  A minimum 30 minute warm up time is recommended for units stored in temperatures outside that range. A minimum 60 minute warm up time is recommended prior to performing an external calibration procedure.

Operating Temperature

64°F to 82°F (18°C to 28°C). Ensure units are well ventilated and fan is operational at all times. Fan should be sucking fresh cool clean air into unit for optimal performance. Overheating and freezing may result in unexpected resetting or lockup of units. Keep vents clear.

Humidity

Maximum 90% RH

Power Consumption

115/230 VAC ± 10%, 350 VA Max.  Typical 40-50 Watts power consumption in idle mode. Up to 300 Watts when sourcing maximum output power to test device. Power consumption varies with load during testing.

Dimensions

89mm H x 432mm W x 457mm D (3.5" H x 17" W x 18" D)

Weight

14Kg (34 lb.) Net / 18Kg (40 lb.) Shipping