Electrical Conductivity Tester

• Purpose – Assess the electrical insulation of footwear, according EN ISO 20344:5.13; IEC 61340-4-3.

Technical specifications of Insulation Resistance Measuring Device
Megger MIT400/2 Series: All quoted accuracies are at +20 °C

Insulation

• Test Voltage:

MIT400/2: 250 V, 500 V, 1000 V
MIT410/2, 420/2,430/2: 50 V, 100 V, 250 V, 500 V, 1000 V

• Insulation accuracy:

50 Volts. 10 GΩ ± 2% ± 2 digits ± 4.0% per GΩ
100 Volts. 20 GΩ ± 2% ± 2 digits ± 2.0% per GΩ
250 Volts. 50 GΩ ± 2% ± 2 digits ± 0.8% per GΩ
500 Volts. 100 GΩ ± 2% ± 2 digits ± 0.4% per GΩ
1000 Volts 200 GΩ ± 2% ± 2 digits ± 0.2% per GΩ

• Service Failure: BS EN 61557-2 (2007):

50V, ± 2.0% ± 2d, 100 kΩ - 900 kΩ ± 10.5%
100V, ± 2.0% ± 2d, 100 kΩ - 900 kΩ ± 10.3%
250V, ± 2.0% ± 2d, 100 kΩ - 900 kΩ ± 10.3%
500V, ± 2.0% ± 2d, 100 kΩ - 900 kΩ ± 10.3%
1000V, ± 2.0% ± 2d, 100 kΩ - 900 kΩ ± 11.5%

• Display range Analog: 1 GΩ full scale
• Resolution 0.1 kΩ
• Short circuit / charging current: 2 mA + 0% -50% to EN 61557-2 (2007)
• Insulation open circuit voltage: -0% +2% ± 2V
• Check for 1 mA current at minimum. exceeds the maximum insulation value of 2mA max.
• Leakage (non-MIT400/2): 10% ± 3 digits
• Voltage: 3% ± 3 digits ± 0.5% of nominal voltage
• Timer control (not MIT400/2): 60-second countdown timer
• Note: The above specifications only apply when using high quality silicon conductors

Continuous

• Continuous measurement: 0.01 Ω to 1000 kΩ
• Continuous accuracy:

± 3% ± 2 digits (0 to 100 Ω )
±5% ±2 digits (100 to 500kΩ)
(500kΩ to 1MΩ unspecified)
Service Error: BS EN 61557-4 (2007) - ± 2.0%, 0.1 Ω - 2 Ω
± 6.8%

• Open circuit voltage: 5 V ± 1 V
• Test current 200 mA (–0 mA +20 mA) (0.01 Ω to 4 Ω)
• Polarity (not MIT400/2): Single polarity (Default)/Bipolar (configurable at setup).
• Null lead resistance up to 9.00Ω

Voltage

• Voltage range

AC: 10 mV to 600 V sinusoidal TRMS (15 Hz to 400 Hz)
DC: 0 to 600 V

• Volt range accuracy

AC: ± 2% ± 1 digit
DC: ±2% ±2 digits

• Service error: BS EN 61557-1 (2007) - ± 2.0% ± 2d, 0 V - 300 V AC / DC ± 5.1%
• Waveform: Unknown range: 0 – 10 mV (15 to 400 Hz)
• For non-sinusoidal waveforms, additional specifications apply
• Non-sinusoidal waveform:

±3% ± 2 digits >100 mV to 600 V TRMS
±8% ± 2 digits 10 mV to 100 mV TRMS
Frequency: (not MIT400/2)

• Frequency measurement range: 15 Hz - 400 Hz
• Frequency measurement accuracy: ± 0.5% ± 1 digit (100 Hz to 400 Hz unspecified)

Capacitance measurement: MIT420/2, MIT430/2 MIT420/2, MIT430/2

• Capacitance measurement: 1 nF to 10 μF
• Capacitance measurement Accuracy: ± 5.0% ± 2 digits (0.1 nF – 1 nF unspecified)

Storage

• Storing results (MIT420/2 and MIT430/2):
• Storage capacity: >1000 test results
• Download data (MIT430/2 only):

Wireless Bluetooth®
Bluetooth® Class II

• Range: up to 10 m
• Power supply:

6 x 1.5 V type IEC LR6 cells (AA, MN1500, HP7, AM3 R6HP) Alkaline
6 x 1.2 V NiMH rechargeable batteries can be used
Battery life 3000 insulation tests with duty cycle of 5 sec ON/55 sec OFF @ 1000 V into 1 MΩ

• Charger (Optional): 12-15 V DC (accessory interface)
• Tool Dimensions: 228 mm x 108mm x 63 mm (9.00 in x 4.25 in x 2.32 in)
• Weight 600 g (MIT400/2), (1.32 lb)
• Weight (tool and case): 1.75 kg (3.86 lb)
• Fuses: Use only 1 x 500 mA ceramic fuse (FF) 1000 V 32 x 6 mm with minimum high interrupting capacity HBC 30 kA. Glass fuses MUST NOT be installed
• Safety protection: The devices meet EN 61010-1 (1995) up to 600 V phase to earth, Class IV. Refer to the safety warnings provided.
• EMC: Conforms to IEC 61326 including amendment No. 1
• Temperature coefficient:
• <0.1% per °C up to 1 GΩ
• <0.1% per °C per GΩ per 1 GΩ

Characteristics of Insulation Resistance Measuring Equipment - Megger MIT400/2 Series.

Insulation Resistance Measuring Device - Megger MIT400/2 Series has some of the following features and characteristics:

• Tests insulation up to the 1000 V and 200 GΩ range
• Voltage Stability Insulation Test (New)
• Single range, faster continuity testing from 0.01 Ω to 1 MΩ (New)
• Measure AC and DC voltage 600 V Trms
• Live circuit detection and protection
• User-changeable insulation test voltage from 100V to 1000V (New) depending on model
• Storage of test results and download to Bluetooth® depends on model
• Rechargeable option for mains and car charger (New) depends on model
• CAT IV 600 V & IP54

Environment

• Operating temperature and humidity range

-10 to +55°C
90% RH at 40°C max.

• Storage temperature range: -25 to +70 °C
• Calibration temperature: +20°C
• Maximum altitude: 2000 m
• IP rating: IP 54

• EN ISO 20344:5.13
• IEC 61340-4-3