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Kewtech KT63 PLUS, Operating Instructions Manual

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The KT63 PLUS Multifunction Tester has been designed and built to the highest standards providing 
you with a safe and simple solution to your test requirements. 

The KT63 PLUS tester is used to verify the safety of Commercial, Domestic and Industrial 
installations. All testing is required to meet BS7671: The requirements for Electrical Installations 
(IET wiring regulations 2018). The KT63 PLUS covers all aspects of these requirements with ease 
of use and safety in mind.

Conformance with Standards

This tester complies with all the latest UK and European regulations. 

This tester has been tested according to the following regulations:

• 

BS EN 61010-2-030:2010 - Safety requirements for electrical equipment for measurement, 
control and laboratory use. Particular requirements for testing and measuring circuits.

• 

BS EN 61326-2-2:2013 - Electrical equipment for measurement, control and laboratory use. 
Particular requirements for portable test, measuring and monitoring equipment used in low-
voltage distribution systems. 

• 

BS EN 61557:2007 - Electrical safety in low voltage distribution systems up to 1000V AC. 
and 1500V DC. Equipment for testing, measuring or monitoring of protective measures. 

• 

Part 1 : General Requirements

• 

Part 2:  Insulation Requirements

• 

Part 3: Loop Requirements

• 

Part 4: Continuity Requirements

• 

Part 6: RCD Requirements

• 

Part 7: Phase Rotation Requirements

• 

Part 10: Multifunction Requirements

Summary of Contents for KT63 PLUS

Page 1: ...Kewtechcorp com KT63 PLUS Multifunction Installation Tester Operating Instructions ...

Page 2: ...ts of the KT63 PLUS 5 Inserting Batteries 7 Overview 8 Rotary Switch Functions 9 Push Button Functions 10 Continuity Test Function 10 Insulation Test Function 13 Special Polarity Test Pad 16 Loop Test Function 17 RCD Test Function 23 Phase Rotation 27 Specifications and Tolerances 28 ...

Page 3: ...een tested according to the following regulations BS EN 61010 2 030 2010 Safety requirements for electrical equipment for measurement control and laboratory use Particular requirements for testing and measuring circuits BS EN 61326 2 2 2013 Electrical equipment for measurement control and laboratory use Particular requirements for portable test measuring and monitoring equipment used in low voltag...

Page 4: ... socket wiring CAT IV Testers are designed to protect against transients and fault currents from the primary supply level overhead or underground utility service Examples are measurements made before the main fuse or circuit breaker Safety Equipment Markings WARNING Read Before Using To maintain operator safety use only specified accessories When working on live circuits use of a proving unit such...

Page 5: ...ulation exposed metal or if the wear indicator shows Check test lead continuity Use only Kewtech approved accessories such as test leads etc supplied with the instrument Do not use the product if it is damaged To be repaired by Kewtech or authorised Kewtech agents only Do not apply more than the rated voltage between the terminals or between each terminal and earth ground Remove test leads from th...

Page 6: ...PLUS Multifunction Tester Mains test lead with BS1363 Plug KAMP12 3 Wire distribution board test lead set with probes and crocodile clips ACC063 Remote Switch Probe AA LR6 Alkaline batteries x 6 Heavy Duty Carry Case Neck Strap Certificate of Calibration All the parts listed above are included in the carry case ...

Page 7: ...able Battery power level indicated on the colour display by the symbol Please dispose of your batteries carefully Batteries are made from important resources and chemicals including lead cadmium zinc lithium and mercury If batteries are disposed of as normal waste they ll be taken to a landfill site and those resources will be lost and will contribute to the pollution of the environment Recycling ...

Page 8: ...kewtechcorp com 8 Overview Front panel and controls Top view ...

Page 9: ...est 4 500V Insulation test 5 1000V Insulation test 6 1000mA RCD test Manual 7 500mA RCD test Manual 8 300mA RCD test Manual 9 100mA RCD test Manual 10 30mA RCD test Manual 11 10mA RCD test Manual 12 30mA RCD test Auto 13 Phase rotation test 14 High resolution L N loop test 15 High current earth loop impedance test 16 No trip earth loop impedance test ...

Page 10: ...ttery life the KT63 PLUS will automatically power off when standing idle for 5 minutes To power the KT63 PLUS back on either return the selector switch to OFF and then back to the test selection or simply press any of the four buttons under the display screen Continuity Caution Principle of Measurement 1 2 3 4 5 6 Measurements must only be carried out on de energized circuits If the tester is conn...

Page 11: ... been nulled their resistance is subtracted before displaying the reading The purpose of Continuity Testing is to establish the resistance of the circuit under test Test Procedure Insert the brown test lead into the brown input terminal the green test lead into the green terminal The brown test lead can be substituted by using the brown remote test probe supplied This allows remote activation of t...

Page 12: ...de to give the most accurate resistance value of the leads that will be used for testing If inserting new or different length leads you must reset the memory and then repeat process above N B Nulled results will be stored until a user reset To reset simply leave the KT63 PLUS in continuity mode and open circuit i e do not have leads connected Then press NULL this will then remove the null function...

Page 13: ...n the circuit being tested after you have a measured result Your tester will automatically discharge this do not disconnect the test leads or change tester function until auto discharge has completed Warning Do not touch the ends of the test leads while on the Insulation test functions as they are energised Results of measurements can be adversely affected by impedances of additional operating cir...

Page 14: ... 500V or 1000V setting as required Connect the brown test lead to the phase conductor and the green test lead to the other conductor under test and press the test button Press the test button the tester will beep indicating voltage output through the test leads and the circuit under test The display will indicate output voltage then display the result of test in MΩ 0V output will indicate if finis...

Page 15: ... emitted to indicate that measurement is being taken After a second or two the test result will be displayed in the primary display area and an audible tone will indicate either by a single beep that the result is a value above 2MΩ or by a short 2 tone alarm that the result is a value under 2MΩ The secondary display area will show the terminal voltage being applied The tester will continue to take...

Page 16: ...neutral and earth neutral to Live Phase The sockets will all work and conventional loop testers will show and test that everything is correct despite this very dangerous wiring condition Although extremely rare this dangerous condition can exist so if your test shows this fault do not proceed if in any doubt advise your customer to contact their supply company immediately Touch the touchpad area n...

Page 17: ...second half cycle with the mains still loaded d The load is removed The resistive part of ZI is calculated from the unloaded and loaded half cycle measurements Each pair of measurements is taken adjacently to minimize noise and several such pairs may be used for best accuracy The inductive part of ZI is calculated from the unloaded and loaded half cycle durations Any inductance causes a measurable...

Page 18: ...at allow the user to conduct the most accurate test possible depending whether or not the circuit under test is protected by an RCD Intermittent Operation The KT63 PLUS is designed for a large number of loop tests in rapid succession In the unlikely condition this limit is exceeded a thermometer will be shown on the display until the unit cools down Testing will be inhibited while the thermometer ...

Page 19: ...measure the impedance of the Loop which includes an element of reactance This can be significant where the distribution board is close to the mains supply transformer and is therefore much more accurate than older Loop testing techniques You should be aware that because of this there may well be variations in reading compared to ordinary loop testers or to the non trip function of this tester part...

Page 20: ... of the RCD tripping as a result of combined leakages PFC PSC In both Loop test modes the KT63 PLUS will also display the supply voltage and at the touch of the PFC PSC Loop button the PFC PSC depending on being connected L E or L N will be displayed Test Lead Configuration The KT63 PLUS Loop test function can be used with 2 types of connecting lead It is important to understand and use the correc...

Page 21: ...bed here as PFC PSC will be the prospective fault current for the circuit being immediately tested This is known as PSC in the case of a test between Live and Neutral or PEFC for a test between Live and Earth conductors BS7671 IET wiring regulations 2018 calls for an IPF value to be recorded this is the higher of the PSC and PEFC as described above No Trip Loop Test Zs Connect the brown blue and g...

Page 22: ...tage Voltage will be displayed Then press the test button The screen will show a symbol and the word TESTING The result of the test will be shown in the primary display A single press of the PFC PSC Loop button will toggle the display so that the PFC is shown in the primary display and the impedance in the secondary display A further press will toggle the results between the primary and secondary ...

Page 23: ...trip signature When trip occurs the time from application of the earth leakage current to the trip is calculated and displayed Additionally VLE is measured using voltmeter V2 to monitor Fault Voltage If excessive Fault Voltage is detected testing is aborted and a warning is displayed This detection uses the actual Fault Voltage occurring during the test and not the predicted fault voltage at the r...

Page 24: ...above tests have to be conducted at both 0 and 180 this means that four tests or for 30mA RCD s six tests have to be made for each RCD The user friendly design of the KT63 PLUS simplifies the test process by enabling you to do any of these tests by making just two function selections Sinusoidal Polarity the 0 or 180 test RCD s often operate with different reaction times depending upon whether the ...

Page 25: ... Procedure Select the type of RCD by pressing the RCD type button and the rating of the RCD to be tested with the rotary function selector switch Connect the 4mm connectors of the chosen test lead to the corresponding L N E terminals of the KT63 PLUS and connect the other end to the socket or circuit terminals under test If using the distribution board test lead set Kewtech ACC063 observe the corr...

Page 26: ...CD failing the test and tripping within 2 seconds at half the rated current the main display will show the trip time and the secondary display will show FAIL A short 2 tone alert will also sound After displaying the result for a few seconds the tester will switch to the 180 phase polarity setting in readiness for the next test When both tests have been conducted at the x setting press the multipli...

Page 27: ...trips If nuisance tripping on a circuit is a problem this function can be used to retest the RCD with other appliances systematically connected and removed For example a 30mA RCD may trip at 12mA on ramp test with an appliance connected and then at 27mA with the appliance removed You will know that the appliance is leaking approximately 15mA Phase rotation Principle of Measurement During phase rot...

Page 28: ...eparately from other waste using local collection and recycling schemes available General Specifications Dimensions Accuracy Dimensions H 115mm W 245mm D 140mm Weight With Batteries 965g Battery Type 6 x AA LR6 Alkaline Battery Life Typical Idling 13 5 hours Insulation according to BS EN61557 2 1008 tests Continuity according to BS EN61557 4 960 tests Protective Device F0 5A 500V HRC 6 3 x 32mm LC...

Page 29: ...t 230V max 5Ω Neutral impedance Voltage Load Accuracy Output Current Short Circuit Current 250 V 250 kΩ 0 20 1 mA 2 mA 500 V 500 kΩ 0 20 1 mA 2 mA 1000 V 1 MΩ 0 20 1 mA 2 mA Insulation Test Voltage Measurement Range Accuracy Short Circuit Current into 2kΩ Over Voltage Protection BS EN 61557 10 250 V 0 001 to 200 0 MΩ 3 2 digits 10 GΩ 2 mA 550 V 500 V 0 001 to 500 0 MΩ 3 2 digits 5 GΩ 2 mA 550 V 10...

Page 30: ...amp 5 of rated IΔN Accuracy at Applied Test Current Function Display Range EN 61557 Measurement Range EN 61557 Operating Uncertainty Nominal Values Insulation Resistance EN 61557 2 0 001 MΩ 1000MΩ 0 1MΩ 1000MΩ 1 6 UN 250 500 1000 V dc 1N 1 0mA Loop Impedance EN 61557 3 0 01Ω 500Ω 1 04Ω 470Ω Hi I 4 8 UN 230 400 V ac f 50 60 Hz f 50 60 Hz No Trip 10 8 Continuity EN 61557 4 0 00Ω 20kΩ 0 1Ω 10kΩ 10 4 ...

Page 31: ... 4 RCD ΔT EN 61557 6 RCD IΔN EN61557 6 A Intrinsic Uncertainty 0 8 0 9 1 5 6 14 4 E1 Position 0 0 0 0 0 E2 Supply Voltage 1 0 0 8 10 0 3 1 3 E3 Temperature 0 8 4 9 0 7 2 1 2 9 E6 System Phase Angle 2 4 E7 System Frequency 0 4 E8 System Voltage 1 4 0 6 1 6 E9 System Harmonics 0 8 E10 System D C Quantities 8 4 Operating Uncertainties ...

Page 32: ...se return to us at Express Cal Unit 2 Shaw Wood Business Park Shaw Wood Way Doncaster DN2 5TB 01302 761044 expresscal Kewtechcorp com Kewtech Corporation Limited Midas House Unit 2b Stones Courtyard High Street Chesham Bucks HP5 1DE 01494 792212 sales Kewtechcorp com ...

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