Industrial Insulation Testers
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Product Name : Industrial Insulation Testers
Product Origin : Hong Kong S.A.R., China
Product Category : Megger
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Contact Details : 運揚有限公司 WANCO LIMITED
Product Code : MIT430
Product Details

Industrial Insulation Testers



工業絕緣測試儀


Model : MIT430

 

The MIT430 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

MIT430 50 V, 100 V, 250 V, 500 V, 1000 V

Insulation resistance range (at maximum test voltage)

MIT430 200 GΩ

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: 1 GΩ full scale

Short Circuit Current: 2 mA +0% -50%

Terminal voltage: -0% +20% ±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

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)

20mA (±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

Resistance

Measurement: 0.01 kΩ to 1000 kΩ (0 to 1 MΩ

on analogue scale)

Accuracy: ±3% ±2 digits up to 50 kΩ

then ±5% ±2 digits

Open circuit voltage: 5 V ±1 V

Short circuit current: 1.5 mA ±0.2 mA

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: 40-450 Hz (40 Hz - 99.9 Hz)

±0.5% ±1 digit (100 Hz to

450 Hz)

Capacitance measurement

MIT430

Measurement range: 100 pF to 10 µF

Accuracy: ± 5.0% ±2 digits

Distance by capacitance:

MIT430

Arithmetic conversion from capacitance measurement on

Default capacitance measurement: 50nF/km

Capacitance range: 40 nF/km to 60 nF/km

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.

Safety Protection

The instruments meet IEC 61010-1 to 600 V phase to earth, Category

IV. Refer to safety warnings supplied.

E.M.C.

In accordance with IEC 61326-1

Temperature effects

Temperature coefficient: <0,1% per °C up to 1 GΩ

Environmental

Operating range: -20 to +55°C

Operating humidity: 95% RH at 0°C to +35ºC,

70% RH @ +35ºC to +55ºC

Storage temperature range: -30ºC to +80°C

Calibration Temperature: +20°C

Maximum altitude: 2000 m

Dust and water protection:

IP54 Protected against dust and splashing water




Service error

Insulation range ±15% ±2 digits

Continuity range ±26% ±2 digits

Resistance range ±12% ±2 digits

Voltage range ±10% ±2 digits

Capacitance range ±18% ±2 digits

Distance range ±18% ±2 digits

Frequency range ±5% ±2 digits