Megohmmeter - Teraohmmeter

A megohmmeter is an instrument that uses a high value DC voltage to measure the resistance of insulators.

To measure the effectiveness of high voltage resistance, low current measurement techniques are used. A constant (DC) voltage source is applied to an insulator, the resistance of which is to be measured, and the resulting current is read on a highly sensitive ammeter circuit that can display the resistance value (in MΩ, GΩ, TΩ).

A megohmmeter is also called a high resistance tester, a teraohmmeter , a megger, a high insulation tester.

 

APPLICATION

SPECIFICATION OVERVIEW

 Megohmmeter selector guide

Sefelec Megohmmeter
range
Resistance range DC voltage Resistance
Accuracy
Pico-ammeter Interface Software Portative
M1501P 100Ω - 2000TΩ 1 - 1500 (1 V steps)
option up to 70 kV DC
0.2 % 0.01 pA-20 mA GPIB included, PLC,
0-10 V in option
yes in option No
M1501M 100Ω - 2000TΩ 1 - 1500 (1 V steps)
option up to 70 kV DC
0.2 % 0.01 pA-20 mA RS232, PLC, 0-10 V
in option
yes in option No
MXS1000 50kΩ - 200GΩ
2TΩ in option
20 - 1000 (1 V steps) ±(1.5 % + 1u) No RS232 included,
GPIB, PLC, Ethernet
in option
yes in option No
MXS500 50kΩ - 200GΩ
2TΩ in option
10 - 500 (1 V steps) ±(1.5 % + 1u) No RS232 included
GPIB, PLC, Ethernet
in option
yes in option No
CA6505 10kΩ - 10TΩ 500, 1000, 2500, 5000 5% No No Yes No
CA6547 30kΩ - 10TΩ 500, 1000, 2500, 5000 5% No RS232 No Yes
CA6545 30kΩ - 10TΩ 500, 1000, 2500, 5000 5% No No No Yes
CA6543 2kΩ - 2TΩ 50, 100, 250, 500, 1000 5% No RS232 No Yes
CA6541 2kΩ - 2TΩ 50, 100, 250, 500, 1000 5% No No No Yes
CA6549 10kΩ - 10TΩ 500, 1000, 2500, 5000 5% No RS232 Yes Yes
CA6550 10kΩ - 25TΩ 500, 1000, 2500, 5000, 10000 Depends on range No RS232 Yes Yes
CA6555 10kΩ - 30TΩ 500, 1000, 2500, 5000, 10000, 15000 Depends on range No RS232 Yes Yes
REMA Series we also manufacture a wide range of high value standard resistors from 1MΩ to 100TΩ

APPLICATION
MANUFACTURING, LABORATORY, HIGH SPEED
PRODUCTION, MAINTENANCE

  • cable manufacturer (measurement made on reel, on 1m cable samples, …shielding against wires)
  • transformers, coils, electrical motors
  • components (capacitors, resistors, …)
  • aviation, aerospace sub assemblies (satellite panels, …)
  • connectors, switches
  • test laboratories (insulated materials such as paper, ceramic, plastics, ...)
  • car industry (splices, cable samples in salty water, …)
  • printed circuit boards
Meghommeter

Meghommeter
Meghommeter

Meghommeter


 

SPECIFICATION OVERVIEW
FROM DESKTOP TO PORTABLE SOLUTIONS, FROM
HANDS-ON TO REMOTE CONTROLLED USE, OUR RANGE COVERS IT ALL

  • resistance measurement up to 2000  TΩ
  • DC Voltage from 1 V up to 1500 V DC (1 V steps), in option up to 70 kV DC
  • picoammeter function from 0.1 pA
  • GPIB, RS232, 0-10 V, PLC  available
  • high accuracy down to 0.2 %
  • surface and resistance measurement according to DIN53482, VDE0303, IEC93 with our SRE24 probe
     

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