The KTD30 is a comprehensive Insulation / Continuity tester it provides for three insulation test voltages: 250V DC for SELV and PELV circuits, 500V DC for circuits up to and including 500V and 1000V for circuits above 500V.

The 200mA continuity test has an auto-null feature for the resistance of the test leads. This can null out up to 2Ω so caters for long extension leads used in R2 testing.

In both the insulation and continuity function there is a 'hands free' mode. When set the instrument will measure whatever is across its test probes. This saves the user having to connect probes and then try and have a hand free to press the test button.

A live circuit warning is provided for when live circuits are inadvertently conected before the commencement of a test.

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The KTD40 uses the very latest in electronic design to produce a compact and feature packed test instrument. For instance it includes a full socket tester that will check for 18 socket wiring conditions. It will also check for the very hazardous condition of a reversal of line/neutral at the supply.

This instrument is capable of measuring true loop impedance, this gives more relevant information when testing PSC/PFC as the reactance of the suppliers transformer is measured as well as the pure loop resistance.

With the optional distribution board test lead set a high current two wire test can be carried out.

PFC or PSC is displayed after a loop test has been carried out it is shown instantly after the press of a second button to change the display.

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The KTD50 is a comprehensive RCD tester that tests type AC and ACS RCDs from 30mA to 500mA (see specifications below). Special RCD features include an auto, ramp and x 2 I ΔN test.

In the auto-test mode the instrument automatically runs through all the six standard tests whilst the operator only has to stand by the RCD and reset it every time it trips. All the result can be viewed using the recall button.

The ramp test slowly increases the tripping current until the RCD trips. The display is in mA. It will show up RCDs that are out of specification and those that will be susceptible to nuisance tripping.

It can also be used to indicate which circuits have high leakage currents.

The x 2 I ΔN test satisfies the advisory note for verification of disconnection times as in the 17th

Edition regulation 411.3.2.2.

The Kewtech KTD50 also measures main voltage and incorporates a full socket trester that checks

for any mis-wiring at the socket.

Last but not least this tester has the unique feature of a mains polarity test. It will check that the mains incoming supply is not in the very hazardous condition of line/neutral reversal.

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The Kewtech Fuse Finder consists of a transmitter, receiver plus mains and fused test lead set.

Transmitter – connects to the circuit to be traced by either the mains lead or fused test lead set. The transmitter is powered from the supply so does not need batteries. It injects a signal into the circuit that is then picked up by the receiver at the fuse board.

Receiver – this cleverly auto-tunes when scanning a bank of fuses / mcbs. At least two scans are required so that the receiver can adjust its sensitivity to detect the strongest signal and hence the correct fuse for the circuit under test.

LEDs clearly indicate signal strength and an auto power off maximises battery life.

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• Checks correct socket outlet wiring
• Checks the quality of the earthing that is essential for safe installations

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• Checks correct socket outlet wiring
• Checks the quality of the earthing that is essential for safe installations
• Checks for the polarity of the mains supply
• Checks RCDs with measured current

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• Performs Earth bond at 200mA at both +ve and -ve polarities (IT appliance safe)
• 250V / 500V insulation test voltages
• Substitute leakage tests
• Single rotary dial position initiates test sequence
• Class I IT 200mA Earth Bond
• Class II
• Extension lead test – including polarity
• LED indication of pass / fail as well as a result display
• Automatic check if appliance is switched on or not
• Test 110V appliances for earth bond and insulation (with appropriate test adaptor)
• Tests in accordance with the IEE Code of Practice
• Powered by batteries

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