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Benning IT 100 Operating Manual Download Page 31

Operation

5.7 Measuring the polarisation index (PI) or the dielectric absorption ratio (DAR)

5225 / 04/2022 en

BENNING IT 100

31

5.7

Measuring the polarisation index (PI) or the
dielectric absorption ratio (DAR)

Requirements

• Please observe the requirements for measuring [

• Approved safety measuring lines

• Measuring ranges for insulating resistance measurement [

• Fuse has been tested [

• Measuring point must be free of voltage

WARNING

Dangerous voltage

Danger to life or serious injury is possible due to contact with high electric voltage in case of
incorrect operation. During insulating resistance measurement, dangerous testing voltages
might be present at the device. These might also be applied to the measuring circuit if safety
measuring lines are contacted.

• Do not touch the bare measuring probe tips of the safety measuring lines or the bare

contacts of the optional alligator clips, Only touch the safety measuring lines in the area
intended for your hands.

Polarisation index (PI)

Polarisation index (PI) = R10‑min / R1‑min

• R10‑min: Measured insulating resistance after 10 minutes

• R1‑min: Measured insulating resistance after 1 minute

Dielectric absorption ratio (DAR)

Dielectric absorption ratio (DAR) = R1‑min / R30‑sec

• R1‑min: Measured insulating resistance after 1 minute

• R30‑sec: Measured insulating resistance after 30 seconds

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Summary of Contents for IT 100

Page 1: ...BENNING IT 100 Operating manual Translation of the German original version 5225 04 2022 en...

Page 2: ...All rights reserved This document particularly all of the contents texts photographs and graphics that it contains are protected by copyright No part of this documentation or the associated contents...

Page 3: ...4 2 4 LOCK key 21 4 2 5 Blue key 21 4 2 6 PI DAR key 21 4 3 Measuring ranges 21 4 3 1 Voltage ranges 22 4 3 2 Resistance ranges 22 5 Operation 24 5 1 Requirements for tests and measurements 24 5 2 Con...

Page 4: ...6 4 Cleaning the device 35 6 5 Replacing the batteries 36 6 6 Calibrating the device 37 6 7 Replacing the fuse 37 7 Technical data 38 8 Disposal and environmental protection 39 Index 40 5225 04 2022 e...

Page 5: ...e 16 Figure 5 BENNING IT 100 device structure 17 Figure 6 Rotary switch 18 Figure 7 Digital display 19 Figure 8 Voltage measurement 26 Figure 9 Resistance measurement 27 Figure 10 Low resistance measu...

Page 6: ...the digital display 19 Table 5 AC voltage ranges V AC 22 Table 6 DC voltage ranges V DC 22 Table 7 Measuring ranges for resistance measurement 22 Table 8 Measuring ranges for low resistance measuremen...

Page 7: ...ring calculating the dielectric absorption ratio DAR Further information http tms benning de it100 On the Internet you will find the following additional information directly at the specified link or...

Page 8: ...s resulting from the failure to observe the instructions in this operating manual The devices are subject to continuous further development Benning reserves the right to make changes to the device s d...

Page 9: ...chnical questions on handling the device Phone 49 2871 93 555 Fax 49 2871 93 6555 E Mail helpdesk benning de Internet www benning de Returns management Easily and conveniently use the BENNING returns...

Page 10: ...WARNING Hazard to humans If you do not pay attention to this warning irreversible or deadly injuries could occur CAUTION Minor hazard to humans If you do not pay attention to this warning minor or mo...

Page 11: ...e complies with EU directives At the end of product life dispose of the unserviceable device via appropriate collecting facilities provided in your community The device is provided with protective ins...

Page 12: ...le Direct any questions to Technical Support page 9 Using the device Please observe the following basic obligations when using the device The device may only be used in a technically perfect and safe...

Page 13: ...ing line from the measuring point WARNING Opening the device Danger to life or serious injury is possible due to contact with high electric voltage when opening the device The device might get damaged...

Page 14: ...ers Please observe relevant regulations on occupational safety and health If necessary use appropriate protective equipment WARNING Dangerous voltage Danger to life or serious injury is possible due t...

Page 15: ...ve pouch item no 10230646 4 x 1 5 V alkaline batteries AA IEC LR6 NEDA 15 A 1 x fuse FF 315 mA 1 000 V 10 kA integrated into the device for initial assembly 1 x operating manual Optional accessories S...

Page 16: ...onsisting of Measuring lines silicone Test probes slender measuring probe Grabber clips Alligator clips Figure 3 BENNING TA 3 Set of 4 mm safety measuring lines with 2 mm measuring probe item no 04414...

Page 17: ...Display illumination key 7 LOCK key 8 jack 9 COM jack 10 Rotary switch 11 Blue key 12 PI DAR key 13 Red LED high voltage control indicator 14 TEST key 15 Digital display Rear panel of the device Folda...

Page 18: ...ngerous contact voltage and battery status Display range for measured value 4 digit liquid crystal display LCD with a font size of 19 mm and decimal points The highest display value is 9 999 digits Di...

Page 19: ...ate of charge of the batteries max 3 segments The batteries are discharged as soon as all segments have disappeared Auto Power OFF PI Polarisation index measurement enabled DAR Dielectric absorption r...

Page 20: ...leased Low resistance measurement Insulating resistance measurement Insulating resistance The device outputs a high testing voltage during the measurement and measures the insulating resistance with t...

Page 21: ...o the LOCK function being enabled Make sure that the measuring point is free of voltage 4 2 5 Blue key Press the blue key to toggle between the standard function of the rotary switch position and the...

Page 22: ...ring accuracy 0 2 1 C x specified measuring accuracy x difference to reference temperature range C 4 3 1 Voltage ranges AC voltage ranges V AC Overload protection 600 V AC V DC Measuring range Resolut...

Page 23: ...If the external voltage is 2 V AC V DC the test will be prevented Measuring ranges for insulating resistance measurement Testing voltage Measuring range Measuring accuracy Resistance min for 1 mA max...

Page 24: ...e 25 Please consider sources of interference that might be present Strong sources of interference in the vicinity of the device might involve unstable readings and measuring errors For carrying out th...

Page 25: ...he safety measuring lines in the area intended for your hands Please note that dangerous testing voltages might be present at the device during insulating resistance measurement These might also be ap...

Page 26: ...lines Voltage ranges page 22 Figure 8 Voltage measurement Procedure 1 Set the rotary switch of the device to switch position 2 Press the blue key to set the desired measuring function AC or DC voltage...

Page 27: ...asurement page 22 or continuity test page 23 Measuring point must be free of voltage Figure 9 Resistance measurement Procedure 1 Set the rotary switch of the device to switch position 2 Press the blue...

Page 28: ...lines Measuring ranges for low resistance measurement page 23 Fuse has been tested page 34 Measuring point must be free of voltage NOTICE Undetected inadmissible external voltage The fuse of the devi...

Page 29: ...d the measurement was not successful and the measurement has to be started again Alternatively you can also use the LOCK function page 21 6 Read the measured value on the digital display Please note t...

Page 30: ...the digital display As long as you keep the TEST key pressed the measurement is active and the displayed measured value as well as the actual testing voltage may change During an active measurement TE...

Page 31: ...rect operation During insulating resistance measurement dangerous testing voltages might be present at the device These might also be applied to the measuring circuit if safety measuring lines are con...

Page 32: ...ed the measurement was not successful and the measurement has to be started again The measurement continues until the measured values for calculating the PI or DAR value have been measured and the PI...

Page 33: ...nt for any repairs page 9 6 1 Maintenance schedule The following table provides an overview of all maintenance and servicing work that you must carry out permanently or at regular intervals Interval M...

Page 34: ...Testing the fuse Procedure 1 Set the rotary switch of the device to switch position Lo 2 Press and hold the TEST key until a measured value or FUSE is shown on the digital display While pressing and...

Page 35: ...sing the wrong cleaning agents can damage the device Do not use any solvents abrasives or polishing agents Procedure 1 Clean the exterior of the device with a clean and dry cloth or a special cleaning...

Page 36: ...the protective rubber holster To do this proceed as follows Hold the device with both hands and press the rubber lip sideways over the edge of the device with your thumbs at the two front upper corner...

Page 37: ...0 kA Replace the fuse if it is defective Requirements New fuse FF 315 mA 1 000 V 10 kA d 6 3 mm l 32 mm e g item no 757213 Voltage free device page 33 Slotted screwdriver and suitable Phillips screwdr...

Page 38: ...557 2 1 M at 1 000 V and with a measuring duration of 5 s Set of safety measuring lines item no 10230645 Standard IEC DIN EN 61010 031 VDE 0411 031 Overvoltage category only applies to the safety meas...

Page 39: ...7 Replacing the fuse 5225 04 2022 en BENNING IT 100 39 8 Disposal and environmental protection At the end of product life dispose of the unserviceable device and the batteries via appropriate collecti...

Page 40: ...IT 100 7 K Key Blue 21 Display illumination 20 LOCK 21 PI DAR 21 TEST 20 L Low resistance measurement 29 M Maintenance 33 Maintenance schedule 33 Manufacturer 2 Measurement Requirements 24 Measuring...

Page 41: ...Standards applied 10 Symbols Device 11 Operating manual 11 T Target group 7 Technical data 38 Technical support 9 Test Requirements 24 Trademarks 8 V Voltage measurement 26 Voltage free 33 W Warning s...

Page 42: ...ting Subject to technical changes No liability accepted for printing errors BENNING Elektrotechnik und Elektronik GmbH Co KG M nsterstra e 135 137 D 46397 Bocholt Phone 49 2871 93 0 Fax 49 2871 93 429...

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