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5.3 Voltage or frequency measurement

Operation

5191 / 07/2021 en

BENNING CM 2-1

28

5.3

Voltage or frequency measurement

Requirements

• Please observe the requirements for measuring [

• Approved safety measuring lines

• Voltage ranges [

page 23] and frequency ranges [

Figure 10:

AC voltage or frequency measurement

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Summary of Contents for CM 2-1

Page 1: ...BENNING CM 2 1 Operating manual Translation of the German original version 5191 07 2021 en...

Page 2: ...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 may b...

Page 3: ...ng options 21 4 3 Measuring ranges 22 4 3 1 Voltage ranges 23 4 3 2 Current ranges 24 4 3 3 Resistance ranges 24 4 3 4 Continuity test 24 4 3 5 Diode test 25 4 3 6 Capacitance ranges 25 4 3 7 Frequenc...

Page 4: ...nance 36 6 1 Maintenance schedule 36 6 2 Making the device free of voltage 36 6 3 Cleaning the device 37 6 4 Replacing the batteries 38 6 5 Calibrating the device 38 7 Technical data 39 8 Disposal and...

Page 5: ...evice structure 17 Figure 7 Rotary switch 18 Figure 8 Digital display 19 Figure 9 MODE function 20 Figure 10 AC voltage or frequency measurement 28 Figure 11 DC voltage measurement 29 Figure 12 Curren...

Page 6: ...ranges V AC 23 Table 6 DC voltage ranges V DC 23 Table 7 Voltage ranges LoZ AutoV 23 Table 8 AC ranges A AC 24 Table 9 DC ranges A DC 24 Table 10 Resistance ranges 24 Table 11 Continuity test 24 Table...

Page 7: ...the specified link or at www benning de product search Operating manual of the device in several languages Further information depending on the device e g brochures technical reports FAQs 1 1 General...

Page 8: ...lopment Benning reserves the right to make changes to the device s design configuration and technology The information in this operating manual corresponds to the state of technical knowledge at the t...

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: ...will occur 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 m...

Page 11: ...ing and measuring circuits connected to the distribution circuit of the low voltage mains installation of a building CAT IV Measuring category IV is applicable to testing and measuring circuits connec...

Page 12: ...n about a warranty claim can only be made once the findings are available Direct any questions to Technical Support page 9 Using the device Please observe the following basic obligations when using th...

Page 13: ...fore opening the battery compartment Do not open the device except for the battery compartment Please contact your specialty retailer or the returns management for any repairs page 9 Securing the devi...

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: ...5 1 x safety measuring line red l 1 4 m 1 x safety measuring line black l 1 4 m 1 x compact protective pouch 2 x 1 5 V micro batteries AAA IEC LR03 1 x operating manual Optional accessories Flexible A...

Page 16: ...et of safety measuring lines BENNING TA 3 item no 044126 Set of 4 mm measuring lines 8 piece red black professional version CAT III 1 000 V consisting of Measuring lines silicone Test probes slender m...

Page 17: ...or 2 AC HFR DCA ZERO key 3 HOLD MIN MAX key 4 Rotary switch 5 Digital display 6 jack 7 COM jack 8 Opening lever 9 Current clamp bulge protection against contact with conductor Rear panel of the device...

Page 18: ...st or measurement by means of the rotary switch 1 2 3 4 5 6 Figure 7 Rotary switch 1 Current or frequency measurement 2 Resistance capacitance measurement continuity or diode testing 3 Setting of the...

Page 19: ...soon as all segments have disappeared and the symbol is flashing When switching it on the device additionally displays the battery status FULL full HALF half or Lo low Polarity display automatic Indic...

Page 20: ...R DCA ZERO key to select the second third or fourth function of the respective rotary switch position Figure 9 MODE function HFR AC function low pass filter The HFR AC function is intended to connect...

Page 21: ...the currently measured value will be displayed again MIN MAX function The MIN MAX function is intended to determine and store the minimum and maximum measured value during current or voltage measurem...

Page 22: ...emperature coefficient by adding the following value to the specified measuring accuracy 0 2 1 C x specified measuring accuracy x difference to reference temperature range C Additional specifications...

Page 23: ...ge 40 600 V 15 Hz 1 kHz Measuring range 400 mV 4 V 15 500 Hz Input resistance 10 M II 100 pF DC voltage ranges V DC Overload protection 600 V AC V DC Measuring range Resolution Measuring accuracy 400...

Page 24: ...DC ranges A DC 4 3 3 Resistance ranges Overload protection 600 V AC V DC Measuring range Resolution Measuring accuracy1 400 0 1 1 0 5 digits 4 k 0 001 k 40 k 0 01 k 400 k 0 1 k 4 M 0 001 M 40 M 0 01 M...

Page 25: ...to the marked polarity Overload protection 600 V AC V DC Measuring range Resolution Measuring accuracy 1 F 0 001 F 2 0 5 digits 10 F 0 01 F 100 F 0 1 F 1 mF 0 001 mF 10 mF 0 01 mF Table 13 Capacitanc...

Page 26: ...es of interference that might be present Strong sources of interference in the vicinity of the device might involve unstable readings and measuring errors Please observe the associated measuring range...

Page 27: ...ding on the overvoltage category During tests and measurements only touch the safety measuring lines in the area intended for your hands WARNING Dangerous voltage Danger to life or serious injury is p...

Page 28: ...21 en BENNING CM 2 1 28 5 3 Voltage or frequency measurement Requirements Please observe the requirements for measuring page 26 Approved safety measuring lines Voltage ranges page 23 and frequency ran...

Page 29: ...function frequency AC or DC voltage Volt Sense Lo Z Auto V The corresponding measuring function AC or DC voltage and the optimum measuring range are set automatically The input resistance is reduced...

Page 30: ...e 25 Figure 12 Current or frequency measurement Procedure 1 Set the rotary switch of the device to switch position Hz 2 Press the AC HFR DCA ZERO key to set the desired measuring function frequency AC...

Page 31: ...s page 24 Figure 13 Resistance capacitance measurement continuity or diode testing Procedure 1 Set the rotary switch of the device to switch position The Resistance measurement function is set automat...

Page 32: ...5 7 Capacitance measurement Requirements Please observe the requirements for measuring page 26 Approved safety measuring lines Capacitance ranges page 25 NOTICE Capacitors not discharged Measuring th...

Page 33: ...asured value on the digital display Standard Si diode applied in forward direction A forward voltage from 0 4 to 0 8 V is displayed 000 indicates a short circuit inside the diode OL indicates an inter...

Page 34: ...contact phase testing Procedure 1 Set the rotary switch of the device to switch position Volt Sense Lo Z Auto V 2 Press the AC HFR DCA ZERO key to enable the Voltage indicator function EF is shown on...

Page 35: ...measuring line Procedure 1 Set the rotary switch of the device to switch position Volt Sense Lo Z Auto V 2 Connect the red safety measuring line to the jack of the device page 27 3 Press the AC HFR DC...

Page 36: ...t your specialty retailer or the returns management 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 o...

Page 37: ...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 38: ...own onto an anti slip surface 2 Unscrew the screw of the battery compartment cover 3 Lift the battery compartment cover off the device 4 Remove the discharged batteries from the battery compartment an...

Page 39: ...ighting Safety measuring lines item no 044145 Standard IEC DIN EN 61010 031 VDE 0411 031 Overvoltage category only applies to the safety measuring lines additionally observe the limitations of the dev...

Page 40: ...vironmental protection 5191 07 2021 en BENNING CM 2 1 40 8 Disposal and environmental protection At the end of product life dispose of the unserviceable device and the batteries via appropriate collec...

Page 41: ...requency ranges 25 Function Further setting options 21 HFR AC 20 HOLD 21 MIN MAX 21 MODE 20 ZERO DC 21 Further information 7 H History 8 Holder of rights 2 I Intended use 12 K Key AC HFR DCA ZERO 20 H...

Page 42: ...curing 13 Service Support Technical support 9 Standards applied 10 Symbols Device 11 Operating manual 11 T Target group 7 Technical data 39 Technical support 9 Test Requirements 26 Trademarks 8 V Volt...

Page 43: ...5191 07 2021 en BENNING CM 2 1 43...

Page 44: ...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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