Megger S1-1052/2 Скачать руководство пользователя страница 6 | Manualshive

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INSTRUMENT CONTROLS AND INDICATORS

6

Measurement terminals
-ve

guard +ve

RS232

USB

Line

input

Time

s

and

t

selectors

Voltage

s

t

selectors

Line input
Present
indicator

Power on/off

Ω

/I selector

Burn indicator 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

Dielectric
absorption
ratio/T1 timer

Digital
display

Polarisation
index/timer
T2

Time
constant

Capacitance
display

Data record

High voltage
warning indicator

Test start/stop

Mode

Function

Backlight
on/off

S1-554

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Содержание S1-1052/2

Страница 1: ...M S1 1054 2 10kV Digital Insulation Tester USER MANUAL ...

Страница 2: ... be 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 part of it is damaged n Insulation testing in wet weather conditions might be hazardous It is recommeded that this instrument is not used in these circumstances If this unavoidable the user must tak...

Страница 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 practice CONTENTS 3 Safety warnings 2 Introduction 4 General description 4 Features 4 Cleaning 5 Power lead and battery charging 5 Instrument controls and indicators 6 Power On Off button 7 Test voltage s...

Страница 4: ...s automatic tests and has data storage and data 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 voltage test can be performed automatically with a default voltage of 1 kV and test duration of 5 minutes It is possible for the user to set different vol...

Страница 5: ...e Line Brown Black If using a fused plug ensure that it is fitted with a 3 Amp fuse The instrument can be powered from 85 265 Vrms a c at 50 60 Hz The battery will charge as long as the mains supply is connected except when a test is in progress The power On Off button has a green LED which illuminates when mains power is present For optimum battery life charge the battery after each use A complet...

Страница 6: ...icator 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 Dielectric absorption ratio T1 timer Digital display Polarisation index timer T2 Time constant Capacitance display Data record High voltage warning indicator Test start stop Mode Function Backlight on off S1 5...

Страница 7: ...e test leads Ω I button Pressing this button toggles the digital and secondary displays The Power On Off button The instrument will only turn on if this button is pressed held and then released when the display responds The instrument will not turn on if the button is released before the display responds or if the button is held down for too long This is a safety feature to prevent the instrument ...

Страница 8: ...n insulation resistance and 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 measurements Further presses of the Ω I button cycles the display through insulation resistances currents and the filter setting In the SV step voltage mode the secondary display ...

Страница 9: ...ts 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 test runs for longer than 10 minutes as this is required for a PI reading 9 Press Ω I Press Ω I Press Ω I Press Ω I Press Ω I Press Ω I Press Ω I Press Ω I ...

Страница 10: ...en 50 and 1000 V Fn Vs Increment in 25 V steps Voltage range between 1000 and 10000 V Fn Vt Decrement in 25 V steps Voltage range between 1000 and 10000 V Fn Ts or Tt Cycle through timers Select main timer T1 or T2 Fn Mode Cycle through IR modes Select breakdown burn or alarm limit for IR test Fn Ω I Cycle through filter options Additional filtering options are available in IR mode Fn Download mod...

Страница 11: ...old down test button until clear process begins shown by analogue display lighting anti clockwise Press the MODE button to exit without deleting the results The insulation resistance IR test operates in either burn or breakdown mode with an option of setting a resistance threshold alarm limit These modes can be cycled through and selected by holding down the Fn button and pressing the Mode button ...

Страница 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 the insulator is clean and there are unlikely to be any adverse current paths However in cable testing for example there may be surface leakage paths across the insulation between the bare cable and...

Страница 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 250 V If there is an external voltage greater than 160 V present this will be displayed regardless of changes made to the test voltage In this case the instrument will not perform a test The high vol...

Страница 14: ...ease 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 Sets voltage Show set to 500V voltage Ts Tt Increase Display set time Select main Display time decrease the on main timer timer T1 or T2 set for main time of the briefly timer T1 or selected timer T2 briefly Ts AND Tt Reset timer to Display...

Страница 15: ...onments and can provide accurate measurements with up to 4mA 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 test continues while displaying the noise If the noise drops back down the normal display is resumed The effects of noise can be reduces significantly with the use of high quality Megge...

Страница 16: ...ons The test duration can be set using the main timer The test will finish automatically after this time has elapsed 16 TEST MODE SUMMARY On test completion insulation capacitance and the time constant associated with it is calculated and displayed Time Constant TC Rins x Cins If timers T1 and T2 are set the instrument will calculate and display the DAR value under the segment DAR On completion of...

Страница 17: ...lease the function button to save the current limit Adjusting the alarm threshold level automatically activates the alarm limit mode This is indicated by the A symbol turning solidly on To toggle the alarm limit mode on off hold down the function button then press and release the mode button repeatedly until the A symbol is flashing on the display Release the function key to toggle Step voltage SV...

Страница 18: ...ufficient time for full absorption to take place in an insulation material The default test voltage is set to 500 V The DD test requires the instrument to measure the discharge current 1 minute after the removal of the test voltage At this time the capacitive current should be insignificant compared with the released absorption current On completion of the test the instrument uses this measurement...

Страница 19: ...round which will result in an increase in leakage current and worsening of measurement accuracy When making measurements above 100 GΩ therefore the user should ground the Guard Lead where possible otherwise parallel leakage paths may occur Test V 2 Test V 2 Ground Test V 0V Ground Guard Alternatively screened leads are available as an optional accessory from Megger The lead to the negative termina...

Страница 20: ...oltage 20 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 GΩ load Current measurement range 0 01 nA to 5 mA Current measurement accuracy 23 C 5 0 2 nA at all voltages Interference rejection 1 mA per 600 V up to a maximum of 4 mA selectable Filter 10 30 and 100 second time constants selectable Timer range Counts up to 99 minutes...

Страница 21: ...6220 820 User guide on CD ROM 2000 213 RS232 cable 25955 025 USB cable 25970 041 3 x 3 m lead set with large insulated clips 6220 811 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 8101 182 3 x 15 m with un insulated small clips 8101 183 3 x 10 m with medium insulated clips 1000 441 3 x 15 m with medium insulated clips 10...

Страница 22: ...l 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 high standard of performance and workmanship you expect These facilities are complemented by a worldwide network of approved repair and calibration companies to offer excellent in service care for your Megger products Returning...

Страница 23: ...rated 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 of the product at the end of it s product life with general waste Megger is registered in the UK as a Producer of Electrical and Electronic Equipment The Registration No is WEE HE0146QT Batteries The crossed out wheeled bin placed on the batter...

Страница 24: ...L3R 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 United Kingdom The company reserves the right to change the specification or design without prior notice Megger is a registered trademark Part No S1 1054_2_UG_en_V08 0913 www megger com Megger 501 Crysta...

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