Martindale CM69 TRMS Earth Leakage Clamp Meter

Martindale CM69 AC TRMS Earth Leakage Clamp Meter

With an outstanding low current capability able to resolve down to 1µA which is the same as 0.001mA, the CM69 is a really high performance TRMS AC Leakage Clamp meter.

This pocket sized clamp also measures AC/DC voltage and resistance. The advanced jaw design minimises the influence of conductor position and shields against external fields from other live conductors to give really accurate and consistent leakage measurements.

The CM69 is capable of accurate AC current measurement from 0.1mA right up to 60A with a resolution of 0.001mA in the 6mA range.

This is one of the few clamp meters on the market which uses True RMS measurement, the Martindale CM69 ensures that leakage currents can be identified and measured accurately even when due to harmonics. The CM 69 also has a switchable filter button enabling repeatable periodic measurements at 50Hz for assessing insulation quality and deterioration without powering down the circuit.

The high resolution and advanced features of the Martindale earth leakage clamp meter make it an essential live troubleshooting tool for electricians wanting quick answers to common problems from nuisance tripping of RCDs, through to the identification of triplen neutral currents. You can also simplify appliance testing by measuring earth leakage currents by clamping around the earth protective conductor or by clamping around both live and neutral conductors to measure the differential leakage current.

This leakage clamp also includes AC/DC voltage measurement, plus resistance and continuity functions. A CATIV safety rating, rugged design and a high contrast backlight display make this a safe clamp meter for use in areas where ambient lighting is poor.

The Martindale CM69 is the perfect troubleshooting tool to help diagnose faults on electrical equipment. lighting and power electronics where harmonics, triplen harmonics and measuring higher earth leakage currents will be useful.

Martindale CM69 Key Features

• Troubleshooting of RCD nuisance tripping
• Periodic measurement of leakage current at 50Hz to check for insulation deterioration
• Accurate measurement of triple neutral currents and other distorted waveforms
• Differential current measurement for appliance testing