UNI-T UT527 Operating Manual Download Page 2

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UT527 Operating Manual

Overview - UT527 Pat Tester

The UT527 is a handheld, battery powered PAT tester suitable for carrying out

electrical safety checks on:

●

Class

Appliances

●

Class

Appliances

●

Testing IEC and Extension Leads

●

Checking of Mains sockets.

●

220V

(

士

10%) Mains Outlet Wiring Test

Unpacking the Unit

Open the case and take out the PAT tester. Check the following items carefully to see

if any parts are missing or damaged. If you find any missing or damaged parts please
contact the supplier you bought the UT527 from.

Summary of Contents for UT527

Page 1: ...P N 110401104471X ...

Page 2: ...s I Appliances Class II Appliances Testing IEC and Extension Leads Checking of Mains sockets 220V 士10 Mains Outlet Wiring Test Unpacking the Unit Open the case and take out the PAT tester Check the following items carefully to see if any parts are missing or damaged If you find any missing or damaged parts please contact the supplier you bought the UT527 from ...

Page 3: ... C Type R14 1 5V UM2 6 x Safety Information Warnings Please be aware of the following warnings Before using the unit and test leads inspect both items Do not use the unit or test leads if either is damaged including if the case is broken or damaged as this could result in electrical shock Replace the battery as soon as the battery indicator appears A low ...

Page 4: ...hargeable batteries in the unit If the tester requires repair or replacement please contact your local service center Declaration of Conformity Uni T manufacture this product and declare that this product conforms to the following standards BS EN 61326 1998 Electrical equipment for measurement control and laboratory use BS EN 61010 1 2001 Safety Requirements for electrical equipment for measuremen...

Page 5: ...4 4mm banana test lead CAT III 600V Alligator clip CAT III 600V or CAT IV300V 1 Product Layout UT527 Diagram 1 and Diagram 2 ...

Page 6: ... that the appliance is switched on before test 6 Earth test Pass Fail indication 7 Insulation test Pass Fail indication 8 Polarity Test Cord test IEC Extension lead pass fail indication 9 Overall Test Result Pass indicator 10 Overall Test Result Fail indicator 11 Warning symbol 12 Low Battery warning 13 Earth Bond Test Lead socket 14 IEC test socket and Mains testing IEC socket ...

Page 7: ...4 Front Panel Operation 1 Press button Power on Power Off 2 Press button when testing a CLASS I Appliance 3 Press button when testing a CLASS II Appliance 4 Press button when testing Cord Extension Lead Test ...

Page 8: ...the test lead and display a tick when complete It is good practice to do this once prior to carrying out testing The unit will automatically switch off after approximately 2 minutes if no any buttons are pressed Testing a CLASS 1 Appliance Plug the appliance into the UT527 panel main socket Plug the earth test lead into the socket 13 on the UT527 end panel Connect the earth crocodile clip to an ex...

Page 9: ...than 0 2 Ω the meter will display Earth Cont with flashing which is a FAIL If this occurs re check the connections between the pin of the plug to the bodywork of the appliance and that the crocodile clip is attached to clean earthed metalwork on the appliance If all connections are ok the appliance earth connection maybe faulty ...

Page 10: ...ation Resistance Test Before the unit carries out the insulation test the unit will attempt to check to see if the appliance is in the on position If it detects that the appliance is in the on position it will automatically carry out the Insulation test If it appears to the unit that the appliance power switch is not in the on position the unit will display Check Connections and the will be flashi...

Page 11: ...lation of the appliance is less than 1MΩ it will display Insulation as a FAIL Final Result 4 After the above tests are completed the meter will indicate whether the appliance has Passed or Failed the tests Notes To interrupt a test press any other key whilst carrying out the tests Testing a CLASS 2 Appliance Plug the appliance into the UT527 panel main socket Plug the earth insulation test lead in...

Page 12: ...he button Class 2 pre check If the unit detects that the appliance appears to be Class 1 as it detects an earth connection it will display Check Connection Earth Cont with a flashing symbol and you will be prevented from carrying out the Class 2 test Test the appliance instead using the Class 1 test ...

Page 13: ...est If it appears to the unit that the switch appliance power switch is not in the on position the unit will display Check Connections If this happens press the key and the unit will continue to carry out the insulation test Please note Most electronic appliances will have electronic on off switches and even though they are switched on the Check Connections message will still appear If the measure...

Page 14: ...L Final Result Class 2 After the above tests are completed the meter will indicate whether the appliance has Passed or Failed the Class 2 test Testing an IEC Lead Extension Lead Cord Test Plug the mains lead under test into the socket and the front panel mains socket on the unit as Diagram 5 ...

Page 15: ... test is 2 MΩ Please note When testing Surge Protected Extension Leads this test may fail This is normal and a result of circuitry within the surge protection device 3 Polarity Test The polarity test is the final test to be carried out and will check that the cord or extension is wired correctly It will check for open circuit short circuit or Line Neutral reversal If the Polarity is correct then t...

Page 16: ...pliance is compliant with the requirements of Cord with PASS or FAIL Checking a mains power supply The unit comes complete with a built in socket tester which will check to ensure that the socket is wired correctly Connect an IEC lead to the mains socket and plug this into the back of the meter as in Diagram 6 ...

Page 17: ...onnection this is indicated LN LE NE 3 If the mains socket wiring is correct the display will show LN LE NE Accuracy Specifications Earth Continuity Pass Limit 0 2 ohms Accuracy 0 03 ohms Test Current Resistance 2 ohms 200mA Test Voltage 5V DC Insulation Resistance CLASS 1 1M ohms CLASS 2 2M ohms Pass Limit CORD 2M ohms Accuracy 0 1M ohms Test Voltage 500V Test Current 500k 1mA 1K 2 mA ...

Page 18: ...t Rating Length 0 5 mm 3A 1 0mm 10A 1 25mm 13A 5m 5m 0 02 0 10 0 10 10m 0 40 0 20 0 20 25m 1 00 0 50 0 40 Table 1 Table 1 Approximate resistance of protective earth conductors in cables Maintenance Battery Replacement When the low battery symbol appears replace the batteries as follows 1 Disconnect all test leads before battery replacement 2 Power off the unit ...

Page 19: ... dry visually inspect all leads connectors and case Any damage or wear must be rectified to preserve user safety Service This unit should be calibrated and repaired by an authorised service centre To ensure the accuracy of the device it should be must calibrated annually There are no user serviceable parts Environmental rating Operating temperature range 0 Deg C to 40 Deg C Do not expose to moistu...

Page 20: ...nge 25 Deg C to 65 Deg C Batteries should be removed prior to storage Manufactured by Uni T an ISO9001 company Distributed in The UK by PASS Ltd 1 Alberto Street Stockton On Tees Teesside TS18 2BQ 0800 247 1600 www tester co uk ...

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