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Megger MIT485/2 Telecoms Insulation Tester
  • Megger MIT485/2 Telecoms Insulation Tester
  • Megger MIT485/2 Telecoms Insulation Tester
  • Megger MIT485/2 Telecoms Insulation Tester

Megger MIT485/2 Telecoms Insulation Tester

Megger approved distributor and service centre.

Includes: Megger MIT485-2 Telecom Insulation & Continuity Tester, Red/Green/Black silicone test leads, Red/Green/Black test clips, Red/Green/Black probes, Quick start guide, Calibration certificate, 6 x alkaline AA (LR6) batteries, Owners CD, Hard carry case.

1004-742
Megger
£770.00
£654.50 Save 15%
Tax excluded
Quantity
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NB: Please note that the MIT485/2 does not have a 1000V range.

The Megger MIT485/2 insulation and continuity tester replaces the original MIT485 and is designed specifically for the Telecommunications and Cable testing markets.

In addition to the primary insulation test function, which delivers accurate results up to 100 GΩ with a test voltage of 500 V, the MIT485 Mk 2 instrument also offers fast continuity testing with a user-selectable test current of 20 mA or 200 mA. Continuity testing covers 0.01 Ω to 1 MΩ without the need for manual range switching.

As a further convenience, the MIT485-2 provides DC and true rms AC voltage measurement up to 600 V. When measuring AC voltages, frequency up to 450 Hz is simultaneously displayed.

Three terminal measurement design permits the connection of all three test leads for A, B and E (or Tip, Ring and Ground). The measurement pair is selected from the A-B-E (T-R-G) button on the front panel. Selection is confirmed in the display. No disconnection of test leads to measure individual pairs are required.

FEATURES

As MIT481/2 + Bluetooth® download.
Insulation testing up to 500 V and 100 GΩ range in a hand held instrument.
3 wire connection for A, B and E (Tip, Ring and Earth) connection.
Gated access to 500 V to prevent accidental damage.
Rechargeable options for mains and car charging.
Single range, faster continuity testing from 0.01 Ω to 1 MΩ.
Differential measurement capability.
Stabilised insulation test voltage.
600 V Trms AC and DC voltage measurement.
Test result storage and Bluetooth® downloading.
CAT IV 600 V and IP 54.

Specification Summary Table
Model MIT481/2 MIT485/2
Insulation Voltage Range
50V / 100 V / 250 V / 500 V    
Variable 10V to 500V  
μA button (Leakage)    
Lock button on MΩ    
REN Telephone count (discharge)    
> 500 V Gated Operation    
Ohms Ranges
Continuity 0.01 Ω - 10 MΩ    
Isc: 200 mA R ≤ 4Ω    
Isc 20 mA    
Difference measurement [REL]    
Lead null (<10 Ω)    
Voltage Measurement
AC / DC Volts 600 V    
mV AC / DC range    
Default Voltmeter    
TRMS    
Frequency measurement 15 - 400 Hz    
Input impedance 10 MΩ 10 MΩ
Capacitance
Capacitance 0.1 nF - 10 μF    
Distance by μF (Open loop)    
REN calculation    
Additional Features
Current measurement mA AC/DC    
PASS/FAIL on limit alarms -  
A/B/E or T/R/G switching    
Number of terminals 3 3
Onboard memory    
Bluetooth® and software  
Recharger ready  
AA Alkaline or NiMH Both Both
CAT IV / 600V    
Accessories
Silicone leads (R,B,G)    
Switched probe supplied    
Megger MIT480 Mk2 Series Specifications
Insulation
Test Voltage
Nominal MIT481/2 and MIT485/2
50 V, 100 V, 250 V, 500 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.
Service Error: BS EN 61557-2 (2007). 50 V, ± 2.0% ± 2d, 100 kΩ - 900 kΩ ± 10.5%
100 V, ± 2.0% ± 2d, 100 kΩ - 900 kΩ ± 10.3%
250 V, ± 2.0% ± 2d, 100 kΩ - 900 kΩ ± 10.3%
500 V, ± 2.0% ± 2d, 100 kΩ - 900 kΩ ± 10.3%.
Display range Analogue: 1 GΩ full scale.
Resolution 0.1 kΩ.
Short circuit/charge current 2 mA +0% -50% to EN 61557-2 (2007).
Open circuit voltage insulation -0% +2% ± 2 V.
Test current 1 mA at min. pass value of insulation to a maximum of 2 mA max.
EN61557 Operating range 0.10 MΩ to 1.00 GΩ.
Leakage Current 10% ±3 digits.
Timer control Countdown timer 60 second.
Note: Above specifications only apply when high quality silicone leads are being used.
Continuity 
Continuity range  0.01 Ω to 1.0 MΩ.
Continuity accuracy ± 3% ± 2 digits (0 to 100 Ω) ±5% ±2 digits (>100 Ω- 500 kΩ)
(>500 kΩ - 1 MΩ unspecified)
Service Error: BS EN 61557-4 (2007) - ± 2.0%, 0.1Ω - 2Ω ± 6.8%.
Open circuit voltage 5 V ± 1 V.
Test current 200 mA (–0 mA +20 mA) (0.01 Ω to 4 Ω).
Lead resistance Nulling up to 10 Ω.
mA Range
DC 0.0mA - 500mA: +/-5%, +/-2 digits.
AC 0.0mA - 10.0mA: unspecified
10.0mA - 500mA: +/-5%, +/-2 digits
(15Hz - 400Hz, sinusoidal).
Voltage Range 
Voltage range AC: 10 mV to 600 V TRMS
sinusoidal (15 Hz to 400 Hz)
DC: 10 mV to 600 V.
Volt range accuracy AC: ± 2% ± 2 digits
DC: ± 2% ± 2 digits
Service Error: BS EN 61557-1 (2007) - ± 2.0% ± 2d,
0 V - 300 V ac/dc ± 5.1%.
Waveform Unspecified range: 0 – 10 mV (15 to 400 Hz)
For non-sinusoidal waveforms
additional specifications apply:
Non-sinusoidal waveforms:
±3% ± 2 digits >100 mV to 600 V TRMS
±8% ± 2 digits 10 mV to 100 mV TRMS.
Default voltmeter Operates at > 25 volts ac or dc on any range except OFF.
Frequency
Frequency measurement range 15 Hz - 400 Hz.
Frequency measurement accuracy ±0.5% ± 1 digit.
Capacitance Measurement
Capacitance range 0.1 nF to 10 μF.
Accuracy ± 5.0% ± 2 digits ( 1 nF-10 μF).
Cable coefficient  40 nF/ km to 70 nF / km.
Unit of measure 50 nF / km.
Result Storage
Storage capacity >1000 test results.
Data download Bluetooth® wireless
Bluetooth® Class II.
Range up to 10 m.
Power Supply
Power supply 6 x 1,5 V cells type IEC LR6 (AA, MN1500, HP7, AM3 R6HP) Alkaline
6 x 1,2 V NiMH rechargeable cells may be used.
Battery life 3000 insulation tests with duty cycle of 5 sec ON /55 sec OFF @ 500 V
into 500 kΩ.
Charger (Optional) 12-15 V dc (accessory interface).
Dimensions 228 mm x 108 mm x 63 mm
(9.00 in x 4.25 in x 2.32 in).
Weight 800 g (1.8 lb).
Weight (instrument and case) 1.75 kg (3.86 lb).
Fuse Use only 2 x 500 mA (FF) 1000 V 32 x 6 mm ceramic fuse of high
breaking capacity HBC 30 kA minimum.
Safety protection The instruments meet EN 61010-1 (1995) to 600V phase to earth, Category IV.
Refer to safety warnings supplied.
EMC In accordance with IEC 61326 including amendment No.1.
Temperature coefficient <0,1% per °C up to 1 GΩ
<0,1% per °C per GΩ above 1 GΩ.
Environmental
Operating temperature range -10 to +55 °C.
Storage temperature range -25 to +70 °C.
Calibration temperature +20 °C.
Maximum altitude 2000 m.
IP rating IP54.
Megger MIT485/2 warranty 12 months (extendable to 3 years on registration).

Download

Megger MIT480/2 Datasheet

PDF Specifications of the Megger MIT481/2 & MIT485/2 Insulation Testers.

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Megger MIT485/2 Telecoms Insulation Tester
COMPONENT
DESCRIPTION PART No.
Charger Mains Charger kit (MIT485/2 only). 1007-464
car Charger 12 V DC battery charger (requires mains charger kit). 1004-183
SP5 Switched probe SP5 (Boxed). 1007-157B
Lead Set Unfused test lead set (Red/Black/Green) for MIT481/2 and MIT485/2. 1007-780
Lead Set Fused lead set (Red/Black), fused. Boxed. 1002-015B
Case Blow moulded case MIT400 Mk1 & Mk2 Series. 1007-169

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