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M

S1-552/2

5kV Digital Insulation Tester

USER MANUAL

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Summary of Contents for S1-552

Page 1: ...M S1 552 2 5kV Digital Insulation Tester USER MANUAL...

Page 2: ...turned off and the circuit discharged manually n Test leads including crocodile clips must be in good order clean and with no broken or cracked insulation n The instrument should not be used if any p...

Page 3: ...circumstances Failure to follow these instructions could result in damage to the instrument and or a hazard to the operator The word should is used to indicate that the instructions indicate best prac...

Page 4: ...retrieval facilities Polarization index and dielectric discharge tests are performed automatically and test duration and voltages can be adjusted according to user preference for these tests A step v...

Page 5: ...e so the ground connection will not be used Power lead connection table Connection UK International USA Earth Ground Yellow Green Green Neutral Blue White Live Line Brown Black If using a fused plug e...

Page 6: ...dicator Alarm Data recording Test modes Voltage at terminals Battery level Breakdown indicator High voltage warning indicator High voltage warning indicator Analogue display Timers Main T1 T2 Dielectr...

Page 7: ...isplay will depend upon the test mode selected whether timers T1 and T2 have been set and Power On Off button The instrument will only turn on if this button is pressed held and then released when the...

Page 8: ...nd current In the IR PI and DD modes the secondary display initially shows the PI polarity index DAR dielectric absorption ratio and on completion of the test the TC time constant and capacitance meas...

Page 9: ...ns timer defaults to 10 minutes as this is required for a PI reading Figure 3 The result of a dielectric discharge test DD Test settings T1 and T2 times set in order to measure the DAR Test condition...

Page 10: ...ct the test mode Modes of test to be chosen from include an insulation resistance IR test a polarization index PI test a step voltage SV test and a dielectric discharge DD test The insulation resistan...

Page 11: ...t now displays clr to indicate clear mode Press and hold down test button until clear process begins shown by analogue display lighting anti clockwise Press the MODE button to exit without deleting th...

Page 12: ...measured in the terminal Guard terminal For basic insulation tests and where there is little possibility of surface leakage affecting the measurement it is unnecessary to use the guard terminal i e if...

Page 13: ...s of the bar graph Voltage at terminals The test voltage will default to that selected in the previous test If the instrument has been switched off since the previous test the test voltage defaults to...

Page 14: ...Increase decrease the decrease the decrease the decrease the test voltage in test voltage in test voltage in test voltage in major steps major steps minor steps minor steps IR only IR only Vs AND Vt...

Page 15: ...provide accurate measurements with up to 4 mA of noise current present A level of noise exceeding the instruments specified capability will be indicated by an alternating sine wave on the display The...

Page 16: ...ent symbol PI On completion of the test the instrument will display the insulation resistance recorded at 1 minute and 10 minutes under the segment symbols 1m and 10m 16 TEST MODE SUMMARY Pressing the...

Page 17: ...ance threshold between the limits of 10 k and 15 T Release the function button to save the current limit Adjusting the alarm threshold level automatically activates the alarm limit mode This is indica...

Page 18: ...that the test leads are reasonably clean and dry The guard lead can be used to remove the effects of surface leakage if necessary When measuring resistances above 100 G the test leads should not be al...

Page 19: ...ths may occur Alternatively screened leads are available as an optional accessory from Megger The lead to the negative terminal is fully screened The screen is plugged into the Guard terminal divertin...

Page 20: ...n test voltage 20 SPECIFICATIONS Capacitance measurement accuracy 23 C 5 5 nF Voltage output accuracy 0 C to 30 C 4 0 10 V of nominal test voltage at 1 G load Current measurement range 0 01 nA to 5 mA...

Page 21: ...User guide on CD ROM 2000 213 RS232 cable 25955 025 UBS cable 25970 041 Optional Accessories HV test lead sets 3 x 3 m with un insulated small clips 8101 181 3 x 8 m with un insulated small clips 810...

Page 22: ...Tel 44 0 1304 502 243 Tel 1 610 676 8579 Fax 44 0 1304 207 342 Fax 1 610 676 8625 Megger operate fully traceable calibration and repair facilities ensuring your instrument continues to provide the hi...

Page 23: ...ry charge level indicator will need to calibrated to the new battery s characteristics End of life disposal WEEE The crossed out wheeled bin placed on the Megger products is a reminder not to dispose...

Page 24: ...3R 6A8 Canada T 1 416 298 9688 Canada only T 1 416 298 6770 F 1 416 298 0848 E casales megger com Megger products are distributed in 146 countries worldwide This instrument is manufactured in the Unit...

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