Instruction Manual
Contents
1. Test Voltage Ranges Auto Range Tolerance 200C 0 01 to 9 99MQ 3 1 digit 250V 10 0 to 99 9MO 3 1 digit 100 to 199MQ 6 1 digit 0 01 to 9 99MQ 13 1 digit 10 0 to 99 9MO 3 1 digit S00V 100 to 199M0 3 1 digit 200 to 499MQ 6 1 digit 0 01 to 9 99MO 3 1 digit 10 0 to 99 9MO 3 1 digit 1000V 100 to 399M0 3 1 digit 400 to 999MQ 6 1 digit Output Voltage Ma 25040 0 20 500K 1000 Short circuit current in to 2kQ Typical Test Time cert mode 10M0 KEW TECH Kewtech Corporation Limited Midas House Unit 2b Stones Courtyard High Street Chesham Bucks HP5 1DE T 01494 792 212 F 01494 791 826 E sales kewtechcorp com www kewtechcorp com2. KTD3O Digital Insulation and Continuity Tester User Manual www kewtechcorp com The Kewtech KTD30 Loop Impedence Tester is designed for use by suitably Operation a Detailed View of the KTD30 qualified personnel familiar with electrical supply systems A Caution Before using your KTD30 please read these instructions in particular note the safety issues that follow Your tester is for use on dead circuits only Although your Kewtech instrument is fully protected against accidental connection to a live circuit it is essential to check the circuit is dead before working on it Your tester is equipped with a very convenient auto test hands free feature but do not 1 Live Circuit touch the lead tips when using this feature There may be capacitance on the circuit being tested a longer than normal test time will indicate this condition Your tester will automatically discharge this but do not ee 2 LCD Displ disconnect the test leads until this auto discharge has completed CD Display On the subject of test leads always check for damaged leads or croc clips Kewtech replacement lead sets are inexpensive and easy to obtain The continuity circuit is fuse protected against accidental connection to mains unlikely 3 Power ON OFF as there will be a warning to indicate a live circuit if this fuse does blow replace it including with the correct type F 500mA fast blow ceramic 500V It is located inside the battery Intellig
3. ent Auto compartment Power Off BSEN 61010 1 6 Continuity Test Batteries Because of storage issues your tester is not supplied with batteries ALWAYS REMOVE THE TEST LEADS BEFORE REPLACING BATTERIES 7 Continuity Test Just 4 AA cells are required alkaline recommended The battery compartment is at the Lead Null the back of the instrument remove the screw do not lose it slide the battery cover off and carefully insert the batteries observing correct polarity Replace cover and fix screw back in 4 good quality AA alkaline cells should give 5000 tests at 500V DC Note Access to the protective fuse is also gained through the battery compartment 4 Insulation Test 5 Insulation Test 8 Briefly Pust to Test Always replace with the correct type F 500mA Fast Blow Ceramic 500V Voltage 250V Instant plus Push and 500V 1000V Hold for 2 seconds for Auto Test Hands Free LIVE CIRCUIT WARNING If this is alight DO NOT PROCEED you are connected to a live circuit This useful indicator will also show if a capacitive circuit under test is fully discharged before disconnecting any test leads LCD Display When power up Power ON OFF is selected your Kewtech KTD30 will default to symbols CERT INS 500V this means it is ready to perform a 500V insulation test in Certification mode and it will do this test when you briefly press button 8 INS 500V This is how the display will look when you first power up the instru
4. ment Power ON OFF Pressing and releasing this button turns the KTD30 on holding down for longer than 2 seconds turns the unit off plus Auto Power Off is incorporated This button selects Insulation Testing Mode your KTD30 defaults to Insulation Test 500V DC on Power On This allows selection of insulation test voltage 250V DC for SELV and PELV circuits 500V DC default for circuits up to and including 500V and 1000V for circuits abouve 500V SELV Separated Extra Low Voltage PELV Protective Extra Low Voltage Selects Continuity Test Mode Continuity Test Lead NULL In order to give accurate continuity resistance results your tester will record the resistance of the test leads store it and automatically subtract the stored value from any continuity measurement being made To NULL the leads hold the test lead tips together very firmly with one hand and press the NULL Button the result will be displayed continuity testing will then subtract this stored value whenever Test Button 8 is pressed the value is reset to zero after Power OFF or Auto Power OFF is selected The Push To Test Button performs two functions A brief push less than one second initiates the test and automatically captures the result which stays on screen until the next test Power OFF or Mode change For Auto Test the button is held down for longer than 2 seconds at which point 34 is displayed in the LCD you now have Hands Free
5. when the probes are touched onto any two test points your KTD30 will carry out an automatic test and capture the result for as long as the probes are held in contact A brief push on the Test button unlocks Hands Free mode Overview of the Display rToO7T7mmMroOnNO wD YS 500V 250V 1000V lt OOO j CD a CD u C Fuse Broken DO NOT PROCEED gt Greater Than lt Less Than Battery Condition WWW good 1 2 Flashing replace TestMode CERT Certification Measuring Mode INS Insulation or CONT Continuity Insulation DC Volts Test Voltage 250 500 1000V DC Measuring Units MQ Insulation Q Continuity Null Function Continuity only Nulls and stores Ohms value of the test leads for the testing session you are in automatically resets to zero on switch off AutoTest Hands Free Selected Continuity Test Ranges Accuracy Cert mode Ranges Auto Range 0 00 to 9 990 10 0 to 99 90 Tolerance 20 C 3 2 digits 3 2 digits 100 to 999Q 3 2 digits Open Circuit Voltage Short Circuit Current Zero offset Adjust Test Lead Null Typical Test Time Cert mode 20 Power 4 x AA alkaline batteries not included Battery Life BS EN 61557 gt 5000 tests 500V test voltage Environmental Operating Temperature Range 0 C to 40 C Storage Temperature Range 10 C to 60 C Size 157mm x 89mm x 39mm Weight 400g Insulation Test Ranges Accuracy Cert mode
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