 | CM67 Earth Leakage Clamp (MARCM67)
A very high quality earth leakage clamp meter with resolution down to 0.01mA and an accuracy of up to 0.05mA. Ideal for identifying appliances or circuits which are causing RCDs to trip.
Comparison feature allows values between 1mA and 20mA to be set and the meter will beep if it measures above the pre set comparison level. This triggering allows you to identify the time of high leakage currents and so helps identify the offending equipment.
Earth leakage clamps operate by clamping around both the live and neutral conductors and measuring the difference between the currents flowing, allow the “leakage value” to be calculated.
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Price: £299.00 (Excluding: VAT at 17.5%)
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Calibration Price £39.00
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 | CM51 200A Mini Clamp with 3 current ranges
This is a low cost 200A mini clamp meter with 2A, 20A and 200A ranges, display hold and auto power down.
This small current clamp will fit into your shirt pocket for maximum convenience. The small jaws make it easy to use and the 3 current ranges accurately cover the majority of applications.
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Price: £59.95 (Excluding: VAT at 17.5%)
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Calibration Price £27.00
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 | CM54 1000A AC Clamp Meter (MARCM54)
The CM50 range of clamps from Martindale combine outstanding specifications, measuring capabilities and careful design to provide the most cost effective clamps available.
The CM54 is a low cost 1000A AC meter with a large jaw size, voltage and resistance ranges. It is the ideal basic clamp meter for AC current use and has the functions of a standard multimeter.
The max control allows you to measure the maximum reading, and the hold button freezes the current reading, which is very useful when working in cramped places.
• Low cost
• 1000A AC
• Multimeter functions
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Price: £89.00 (Excluding: VAT at 17.5%)
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Calibration Price £27.00
Optional fused test leads £28.50
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 | CM56 1000A AC Clamp Meter (MARCM56)
The CM56 has a large display combining a clear 3½ digit readout with a responsive 34 segment bargraph, useful for representing varying signals.
For general purpose use it is autoranging on AC and DC voltage, with resistance to 30M½ and a beeper for the low resistance continuity range. It also measures frequency with 0.1Hz resolution, allowing accurate determination of mains or generator frequencies. Reading hold and AC peak functions complete the impressive capability of this clamp.
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Price: £108.00 (Excluding: VAT at 17.5%)
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Calibration Price £27.00
Optional fused test leads £28.50
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 | CM58 True RMS 1000A AC/DC Clamp Meter (MARCM58)
The CM58 is the top model in this outstanding range of clamps with true RMS AC voltage and current measurement.
It measures AC and DC current to 1000A, has voltage, resistance, frequency and capacitance function and is autoranging (except voltage).
The bargraph has 42 segments for better resolution of changing readings. The CM58 has max and min reading memories, AC peak and hold features and diode test. Manual range change/hold is provided for optional override of the autoranging functions.
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Price: £168.00 (Excluding: VAT at 17.5%)
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Calibration Price £39.00
Optional fused test leads £28.50
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