Megger MIT485-2 Telecoms Insulation and Continuity Tester 1004-742

£1,134.00
Megger MIT485 Telecoms Insulation and Continuity Tester
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). 50V, ± 2.0% ± 2d, 100kΩ - 900kΩ ± 10.5%
100V, ± 2.0% ± 2d, 100kΩ - 900kΩ ± 10.3%
250V, ± 2.0% ± 2d, 100kΩ - 900kΩ ± 10.3%
500V, ± 2.0% ± 2d, 100kΩ - 900kΩ ± 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 1.0 0GΩ
Leakage Current 10% ±3 digits
Timer control Countdown timer 60 second
Note Above speci?cations 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 unspeci?ed)
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
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,
0V - 300Vac/dc ± 5.1%
Waveform Unspeci?ed 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 40n F/ km to 70nF / km
Unit of measure 50nF / 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
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. Glass fuses MUST
NOT be fitted.
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 co-efficient <0,1% per °C up to 1 GΩ
<0,1% per °C per GΩ
above 1 GΩ
Environmental
Operating temperature
range and humidity
-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

Description

.MIT485 Telecoms insulation and continuity tester

 

The Megger MIT480 series instruments have been developed specifically for the telecommunications industry. The insulation and continuity testers combine the latest range of measurement techniques with new instrument design to provide a state-of-the-art tester that is compact and comfortable to hold. The MIT480 series directly replaces the well-established BM80 product group, given greater functionality with simplified operation and greater application range.

 

The range:

MIT480 50 V, 100 V tester MIT481 50 V, 100 V, 250 V, 500 V, 1000 V tester MIT485 As 481 plus downloading results

 

Insulation Testing:

  • Test voltages - 50 V/100 V or 50 V to 1000 V insulation test voltages available depending on instrument. The actual test voltage is displayed on the smaller digital readout, with the insulation result on the larger digital display. 
  • Analogue arc - The display also features an analogue arc to replicate the response of a moving coil display. 
  • Insulation leakage current - The MIT481 and MIT485 offer insulation leakage current display, in addition to insulation test voltage.
  • Insulation testing - up to 10 GΩ or 200 GΩ test range are available.
  • Silicone test leads - (supplied) are essential to prevent error in measurement on insulation tests of greater than 10 GΩ . 
  • Test inhibit - prevents testing if voltages in excess of 75 V are detected when making insulation tests. 
  • Test lock - allows the insulation test to be ‘locked’ on continuously. 
  • Timed testing - MIT481 and MIT485 have timed insulation test options.

 

Continuity and Resistance:

  • 200 mA or 20 mA - Either 200 mA or 20 mA continuity test currents are available. 20 mA test current will considerably increase battery life.
  • Auto test - on circuit contact enables real two handed operation without the need to press the test button.
  • Lead null - Lead resistance compensation (NULL) operates up to 9.99 Ω of resistance.
  • Buzzer ON-OFF - selected by push button.
  • Limit alarm - Continuity buzzer limit alarm provides adjustment of the maximum acceptable resistance. Resistance below the set limit sounds the buzzer. This is adjustable from 1 Ω to 20 Ω in 5 steps.
  •  kΩ range - extends resistance measurement from 10 Ω to 1 MΩ.

 

Capacitance measurement:

  • Capacitance measurement - auto ranges from 0.1 nF to 10 µF. Results are displayed on the primary digital display.
  • Cable length - is displayed on the secondary display. Cable length is calculated from an adjustable cable capacitance reference (default 50 nF/km).
  • Cable capacitance reference - A variable value for distance calculation is adjustable from 40 nF/km to 60 nf/km.
  • km or Feet - Can be displayed, selected in set-up.

 

Voltage and Frequency:

  • CATIV - Suitable for use on circuits up to 600 V CAT IV. 
  • AC voltage - measurement is True RMS up to 600 V.
  • DC Voltage - measurement to 600 V.
  • Fully auto-ranging - from 10 mV up to 600 V provides wide range of applications and suitable for transducer inputs
  • A default voltmeter - is activated on any test function if a circuit voltage is detected.

 

Additional Features:

  • All tests will be inhibited if a live circuit voltage above 75 V is detected.
  • Instrument fuse failure will not affect instrument safety functions.
  • Rubber boot combines the tough shock absorbing outer protection with excellent grip, on a strong modified ABS housing, providing an almost indestructible case.
  • Battery requirements are 5 AA batteries of either standard Alkaline or Nickel Metal Hydride (NiMH) rechargeable type.
  • Battery condition status is permanently displayed.
 
 

Megger 480 Series Selection Guide


 

Features & Specification

More Information
Key Features Manufacturer Certificate Included, Resistance Measurement, Capacitance Measurement, Continuity Measurement, Memory Function, Test Probe Included, Frequency Measurement, TRMS Measurement
Product Stock Status Next Day Delivery (subject to availability)
Manufacturer Megger
Short Description
Megger MIT485 Telecoms Insulation and Continuity Tester
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). 50V, ± 2.0% ± 2d, 100kΩ - 900kΩ ± 10.5%
100V, ± 2.0% ± 2d, 100kΩ - 900kΩ ± 10.3%
250V, ± 2.0% ± 2d, 100kΩ - 900kΩ ± 10.3%
500V, ± 2.0% ± 2d, 100kΩ - 900kΩ ± 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 1.0 0GΩ
Leakage Current 10% ±3 digits
Timer control Countdown timer 60 second
Note Above speci?cations 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 unspeci?ed)
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
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,
0V - 300Vac/dc ± 5.1%
Waveform Unspeci?ed 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 40n F/ km to 70nF / km
Unit of measure 50nF / 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
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. Glass fuses MUST
NOT be fitted.
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 co-efficient <0,1% per °C up to 1 GΩ
<0,1% per °C per GΩ
above 1 GΩ
Environmental
Operating temperature
range and humidity
-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

Delivery

Updated January 2024

Please note, our cut-off time is 2:00pm

Orders requiring calibration 

Whilst we take the greatest care to get all orders dispatched and delivered to you in the stated time frame, orders received PM and requiring calibration may on occasion miss dispatch that day, according to the complexity of the calibration.
Be assured they will ship on the next dispatch this in most cases should not add more than 24 hours to your delivery.

Bank/Public Holidays

Predicted delivery times are based on regular trading days Monday to Friday. Public holidays, bank holidays and weekends are outside the usual scope
of our dispatch and subject to activities/holidays of our carriers and therefore may incur additional days lead time to your order.

*UK Mainland (Revised March 2021)

Service Price
Standard FREE 2-3 Day Courier Delivery – UK Mainland only - Zones A & B - Order value OVER £75.00 ex VAT FREE
Standard FREE 2-3 Day Courier Delivery – UK Mainland only - Zones A & B - Order value UNDER £75.00 ex VAT £4.95
Next WORKING Day (excludes Saturdays, Sundays and public holidays)  – UK Mainland only - Zones A & B  - ANY order value - Order by 2:00pm £7.75
Saturday ANYTIME Delivery - Order by 2:00pm £9.95
 

 

 

 

 

Delivery Surcharges

Because of the high cost of carriage, we regretfully need to apply a surcharge on all deliveries made in the following regions:

  • Zones A & B  - Mainland delivery rates apply. 
  • Zone C - Scottish Highlands (Charges are calculated at the checkout).
  • Zone D - Outer Hebrides, Orkney Isles, Shetland Isles, Isle of Man, Scilly Isles, and Channel Islands (Charges are calculated at the checkout).
  • Zone E - Northern Ireland (Charges are calculated at the checkout).
  • Zone F - Republic of Ireland (Charges are calculated at the checkout).

Offshore Services

All offshore deliveries are a 3-4 day service as standard. This includes Channel Islands, Northern & Southern Ireland, Scottish Islands, Isle of Man and the Scilly Isles.

International delivery

International delivery charges are automatically added to your order at the checkout. For any questions regarding international deliveries please contact us at sales@isswww.co.uk

Export 

All export inquiries should be directed to the export division before placement of order.

If no shipping option is available to your selected country please call us FREE on 0800 0224 060 to discuss your requirements.
All stated prices are subject to VAT at the current rate where applicable.
E&OA