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Operating Manual   Isotest 3P

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C O N T E N T S

1   Introduction.............................................................................................................3
1.1   Safety Instructions ...............................................................................................3
1.2   General Characteristics .......................................................................................6
1.3   First Steps ...........................................................................................................7
1.3.1   Setting the Test High Voltage ...........................................................................8
1.3.2   Setting the Display Sensitivity...........................................................................9
1.4   Functions of the Safety Button.............................................................................9
2   Acoustic Signals during the Test Procedure .........................................................12
2.1   Flaw (Pore) ........................................................................................................12
2.2   Exhaustive Discharge Protection of the Battery.................................................12
2.3   Lack of Earth Connection ..................................................................................12
2.4   Load Exerted by the Test Specimen..................................................................13
2.5   Reminder to Switch Off......................................................................................13
2.6   Alarm Signals ....................................................................................................13
2.7   Unique Display of All Operating States..............................................................14
3   Maintenance .........................................................................................................15
3.1   Replacing the Battery in the Handle ..................................................................15
A   Annex ...................................................................................................................16
A.1   Technical Data ..................................................................................................16
A.1.1   Power Supply .................................................................................................16
A.1.2   Test Voltage ...................................................................................................16
A.1.3   Dimensions and Weights................................................................................16
B   Accessories..........................................................................................................17
B.1   Charger Units ....................................................................................................18
B.1.1   Forms of Charger Units Available ..................................................................18
B.1.2   Types of  Battery ............................................................................................18
B.1.3   Connecting the Battery to the Charger Unit....................................................18
B.1.4   Charging the Battery ......................................................................................19
B.1.5   Testing the Current State of Charge ..............................................................19
B.1.6   Technical Data ...............................................................................................20
B.3   Extension Rod...................................................................................................21
C.   Checklist .............................................................................................................23
C.1.   Test of Readiness for Operation ......................................................................23
C.1.1   Battery (Varta 5M6 6 V/6 Ah or Sonnenschein 6 V/6.5 Ah)............................23
C.1.2   Meaning of the Acoustic Signals ....................................................................23
C.2   Test Voltage......................................................................................................25
C.2.1   Check whether the test electrode has high voltage as follows: ......................25
C.2.2   Is the test voltage correctly set?.....................................................................25
C.2.3   Is the test voltage monitored with a sphere gap?...........................................25
C.3   Earthing.............................................................................................................25
C.3.1   Methods of Earthing.......................................................................................25
C.3.1.1 Direct Connection (Earthing) Between Test Object and ISOTEST ...............26
C.3.1.2   Indirect Earthing With an Earthing Rod and Trailing Earth..........................26
C.3.1.3   Special Forms of Earthing...........................................................................28
C.4   Test Procedure .................................................................................................28
C.4.1   Is an Automatic Controller Installed in the Tester?.........................................28

Содержание ISOTEST 3P

Страница 1: ...sories 17 B 1 Charger Units 18 B 1 1 Forms of Charger Units Available 18 B 1 2 Types of Battery 18 B 1 3 Connecting the Battery to the Charger Unit 18 B 1 4 Charging the Battery 19 B 1 5 Testing the C...

Страница 2: ...de wheels 29 C 4 3 Special Tests 29 C 4 3 1 Subsequent Testing of Contact Surfaces Slide Valves etc 29 C 4 3 2 Correct Testing of Socket Pipes 29 D Tables for Intermediate Values of the Test Voltage 3...

Страница 3: ...r possible obstacles and sources of danger e g risk of tripping over Accidental contact with a high voltage and consequent uncontrollable behaviour should not lead to the tester being placed at risk T...

Страница 4: ...the ISOTEST unit Important notice for wearers of a Heart pacemaker During operation of the ISOTEST unit it is necessary to take into consideration a fault in the form of switching over of the heart p...

Страница 5: ...n always check the following parts The handle for dirt and moisture The proper function of the safety button The high voltage cable for mechanical damage On no account may the plugs on the battery lea...

Страница 6: ...eeds of up to 250 mm s are possible The test high voltage is set using a sphere gap in accordance with VDE 0433 The constant adaptation of the power supply by the control electronics guaran tees a con...

Страница 7: ...test specimen otherwise the tester will emit a continuous buzzer tone and will not function see 2 3 and Checklist point 3 Insert the test electrode into the screw fitting on the handle On tester versi...

Страница 8: ...knob by moving lever in a counter clockwise direction Setting is now carried out with the black inner part of rotary knob The numeric value before the comma decimal point must appear in the window of...

Страница 9: ...ning the setting knob clockwise until the continuous tone stops see Checklist section C 1 2 1 4 Functions of the Safety Button The safety button has two switching points Switching point 1 Pressing the...

Страница 10: ...the specific operating conditions the ISOTEST can be run in two different operating modes The second step of the safety switch is not activated When turning on the ISOTEST at the main switch you will...

Страница 11: ...d into the As soon as the acoustic signal stops stop pressing the safety switch immediately safety function actic safety function activ Keep the switch pressed switch step one 1 for app three seconds...

Страница 12: ...measure prevents a damaging exhaustive discharge of the battery and ensures a reliable function see Checklist point C 1 2 2 3 Lack of Earth Connection This section must be read particularly carefully...

Страница 13: ...of the ELMED insulation tester can necessi tate an adaptation of the display sensitivity to the different loads see 1 3 2 Factors for the load area e g Type and coat thickness of the insulation Diffe...

Страница 14: ...on safety switch is activated Test voltage is switched on Reminder to switch off after 5 minutes 5 sec Continuous tone If the display sensitivity has not been matched to the load and test conditions I...

Страница 15: ...regularly to avoid dirt Do not allow the high voltage cable to come into contact with hot or sharp objects Always close the cover of the carrying case to protect the tester Do not throw the ISOTEST te...

Страница 16: ...continuous operation approx 3 hours During cyclic operation approx 9 hours A 1 2 Test Voltage Voltage form unipolar pulses Pulse repetition period approx 10 s Pulse repetition frequency 30 Hz Current...

Страница 17: ...essories more in our illustrated price list Test electrodes Flat brush electrodes brass stainless steel conductive rubber Bristle type brush electrodes in high quality stainless steel Stainless steel...

Страница 18: ...omplicated in terms of charging unlike NiCd batteries an already charged lead acid battery is not harmed by multiple charging operations The well known effect of a loss of capacity in the case of NiCd...

Страница 19: ...cted to the power source mains or 24 V source the red Ladung charging indicator light comes on and the charging process begins The red indicator light goes out at the end of the charging time and the...

Страница 20: ...G24 for low voltage use Power supply 230 V 50 Hz 24 V Power rating 4 3 VA max 1 A Charging 600 mA max 7 2 V for 14 hours 600 mA max 7 2 V for 14 hours Holding charge 50 mA 50 mA Types of battery Nicke...

Страница 21: ...n that is delimited by two plastic rings is to be used See Fig 4 3 a Important Dampness and dirt on the extension rods and the handle can cause flash overs The extension rods and the handle of the ISO...

Страница 22: ...each other without a locator tube by screwing them inside each other and in Fig 4 3 b The extension rod coupled to the handle only requires to be provided with a locator tube The locator tube is only...

Страница 23: ...und is heard when the main switch of the ISOTEST 3P is turned on FAULT Buzzer does not sound when the test button is pressed CAUSE REMEDY Main switch on tester has not been turned on Turn main switch...

Страница 24: ...the test specimen Excessive energy flow e g due to moisture Reduce the display sensitivity at the adjustment knob until the continuous signal stops The reduction in the display sensitivity has no eff...

Страница 25: ...iously incorrect settings of the test voltage ELMED testers have an automatic control system with integral sphere gap The function of the sphere gap can be heard as a light tapping sound in the tester...

Страница 26: ...hat is completely covered in cladding the earthing connection to the ISOTEST can probably be produced indirectly via the ground Test object conductive ground ISOTEST Indirect earthing can only be used...

Страница 27: ...Connect the test specimen to the ground using the earthing rod Use only ELMED earthing rod supplied Do not use home made earths Poor conductive link between the test specimen and the ground In view of...

Страница 28: ...r application have to be taken into consideration please contact ELMED beforehand in order to enable us to recommend a solution tailored to your particular application If no conductive parts are acces...

Страница 29: ...t bristles C 4 2 4 Are the brushes still in order Even the best brushes wear after a time Worn or severely bent bristles lead to the above mentioned gaps and thus to incorrect measurements Install new...

Страница 30: ...24 0 25 0 26 0 27 0 28 0 29 0 5 03 5 37 5 69 6 03 6 39 6 78 7 26 7 77 8 30 8 86 30 0 31 0 32 0 33 0 34 0 35 0 9 45 10 04 10 70 11 45 12 35 13 55 For testers with micro drive only 3P F kV S kV S kV S...

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