Telecommunications Insulation Testers->運揚有限公司 WANCO LIMITED

View Large	Product Name :	Telecommunications Insulation Testers
	Product Origin :	Hong Kong S.A.R., China
	Product Category :	Megger
	More Products :	Click here!
	Contact Details :	運揚有限公司 WANCO LIMITED
	Product Code :	MIT485

Product Details

Telecommunications Insulation Testers

電訊絕緣測試儀

Model : MIT485

The MIT485 of insulation and continuity tester offers those working in electrical engineering, the electrical supply industry and in maintenance, repair and servicing of industrial equipment and manufacturing processes a convenient test instrument.

It is also very useful for the checking of the electrical system in hybrid and electric vehicles. the safety and comfort of a modern purpose designed instrument.

* Specification

Insulation

Nominal test voltages

MIT485 50 V, 100 V, 250 V, 500 V, 1000 V

Insulation resistance range (at maximum test voltage)

MIT485 200 GΩ

Short Circuit Current:

2 mA +0% -50%

Terminal voltage: -0% +20% ±1 V

MIT40X ±1 V

Test Current on load:

1 mA at min. pass value of insulation specified in BS7671, HD384

and IEC364, 2 mA max. EN61557 Operating range: 0,10 MΩ to

1,00 GΩ

Leakage current range: 10 μA 2000 μA

Leakage current: 10% ±3 digits

Voltage display: 3% ±3 digits ±0.5% of rated voltage

Polarisation Index (PI): 10 min / 1minute ratio

Dielectric Absorption Ratio (DAR): 60 sec / 30 sec ratio

Range Full Scale Accuracy

All ranges ±2% ±2 digits up to 100 MΩ.

Then:

1000 volts±3% ±2 digits ±0.2% per GΩ

500 volts ±3% ±2 digits ±0.4% per GΩ

250 volts ±3% ±2 digits ±0.8% per GΩ

100 volts ±3% ±2 digits ±2.0% per GΩ

50 volts ±3% ±2 digits ±4.0% per GΩ

10 volts ±3% ±2 digits ±2.0% per 100 MΩ

Analogue Range: 1GΩ full scale

Notes

1. All ranges measure from 0,00 MΩ upwards.

2. Above specifications only apply when high quality silicone leads

are being used.

Continuity

Measurement: 0,01 Ω to 99,9 Ω (0 to 100 Ω on analogue

scale)

Accuracy: ±2% ±2 digits (0 to 100 Ω)

Open circuit voltage: 5 V ±1 V

Test current: 205 mA (±5 mA)

(0.01 Ω to 9.99 Ω)

20 mA (±1 mA )

(10.0 Ω to 99.9 Ω)

Zero offset at probe tips: 0,10 Ω typical

Lead resistance zeroing: Up to 9.99 Ω

Buzzer: Variable limit 1 Ω, 2 Ω, 5 Ω, 10 Ω, 20 Ω

Voltage range

0 to 600 V d.c. ±2% ±2 digits

10 mV to 600 V TRMS sinusoidal (40 to 400 Hz) ±2% ±2 digits 0 to

1000 V on Analogue scale

Unspecified input level 0 - 10 mV (40 to 400 Hz)

For non-sinusoidal waveforms additional specification apply:

±3% ±2 digits 101 mV to 600 V TRMS and ±8% ±2 digits 10 mV to

100 mV TRMS

Default Voltmeter: Operates at >25 V a.c. or d.c. on

any range except OFF

Frequency: 15 - 450 Hz ±0.5% ±1 digit

Result storage

Capacity: >1000 test results

Download: Bluetooth wireless

Bluetooth Class: Class II

Range: up to 10 m

Power supply 5 x 1,5 V cells type IEC LR6 (AA,

MN1500, HP7, AM3 R6HP) Alkaline

NiMH rechargeable cells may be used.

Battery life 2200 insulation tests with duty cycle of 5

sec ON /55 sec OFF @ 1000 V into 1 MΩ

Dimensions

Instrument 220 x 92 x 50 mm (8.66 in. x 3.63 in. x

1.97 in.)

Instrument + case 456 x 178 x 89 mm (18 in. x 7 in. x 3.5

in.)

Weight

Instrument only 590 gms; 775 gms with boot (20.73 oz;

27.22 oz)

Instrument plus case 1.75kg (3.86 lb)

Fuse Use only a 500 mA (FF) 1000 V 32 x

6 mm ceramic fuse of high breaking

capacity HBC 50 kA minimum. Glass

fuses MUST NOT be fitted.

Over-voltage safety