1998/03/23 Caterpillar

All Generator Sets

Warranty: M

Features/Benefits

* Replaces canceled 9U-6003 Insulation Tester.

* Used to measure and check insulation resistance for electrical power generation.

* Separate voltmeter range operates from 0 to 600 VDC at 50/60 Hz and to 450 VDC at 400 Hz.

* Analog scale reads up to 10 GW for high insulation resistance readings.

* Meter ranges from 100 kW digital and 10 MW analog to test for faults on motors, generators, or relays.

* Tool defaults to voltmeter operation whenever an external voltage greater than 25 VDC or VAC is detected (only exception is when meter is off or preforming battery condition test).

* Auto shut-off feature turns an unused unit off after 5 minutes.

* Display includes solid state analog arc .

* Battery condition test position measures voltage on a simulated load.

* Operates at temperatures from -20°C to +40°C (-4.0°F to 104.0°F)

* Case is weather and dust proof.

Specifications/Technical Information

Insulation Ranges:

Nominal test voltage - 500 VDC

Measuring range (on all ranges) - 0.01 to 999

M/Omega/

Measuring range (on analogue scale) - 0 to 10

G/Omega/

Terminal voltage on open circuit VDC - ±15% maximum

Short circuit current - less than 2 mA

Test current on load - 1 mA at minimum

... pass values of insulation specified

... in BS7671, HD384, and IEC364

Accuracy at 20°C (68°F) - ±2% and ±2 digits

Continuity Ranges:

Measuring range - 0.01 to 99.9 /Omega/

... /(0 to 5 /Omega/ on analogue scale)

Open circuit voltage - 5 ± 1 volt

Short circuit current - 205 ± 5 mA

Accuracy

at 20°C (68°F) - 1 to 9.99 /Omega/, ±2%, ±2 digits;

... 10 to 9.99 /Omega/ ±5%

Zero offset adjust - 0 to 9.99 /Omega/

Continuity buzzer - operates at less than 5 /Omega/

Resistance Range (can be used for diode testing):

Measuring range - 0.1 to 100 k/Omega/

... (0 to 10 M/Omega/ on analog scale)

Open circuit voltage - 5 ± 1 volt

Short circuit current - 20 ± 5 ×A

Accuracy at 20°C (68°F) - ±5%, ±2 digits

Voltage Range:

Measuring range - 0 to 600 VDC

- 0 to 600 VAC (50/60 Hz)

- 0 to 450 VAC (400 Hz)

... or 0 to 500 volts on analogue scale

Accuracy

at 20°C (68°F) - less than 450 VDC

... or VAC (50/60 Hz): ±1%, ±2 digits

- greater than 450 VDC

... or VAC (50/60 Hz): ±2%, ±2 digits

- 450 VDC at 400 Hz: ±5%, ±2 digits

Temperature Coefficient:

All ranges - less than 0.1% per °C

(A) 142-5055 Insulation Tester.

(2) Carrying Case.

(3) 9U-6004 Test Lead Set.

Not shown:

1U-9533 Battery, AA 1.5 Volt Alkaline.

1U-9538 Battery, AA 1.5 Volt Heavy Duty.

4C-5535 Fuse, 500 md.

Service Requirements

For service, contact one of the following suppliers: