USER`S MANUAL - HellermannTyton
Contents
1. MAX 600 600V CAT CREST HOLD A AC DC EF True RMS RELA ale a00 eng TI HL 0000 ul a RANGE SELECT F Autoja H gt OFF V ko V QJVFD 6 600v vA TE OO USER S MANUAL DCA ACA Models TBM186 amp TBM189 ACA Models TBM181 TBM183 TBM185 amp TBM188 Versatile Clamp on Multimeter Series MAX 600 600V CAT CREST z HOLD B a True hl L MAX COM soov caru P gail EF RELA zro AOD OO al 1 IK A HellermannTyton BRYMEN BRIGHT PEOPLE S CHOICE 1 1 SAFETY This manual contains information and warnings that must be followed for operating the instrument safely and maintaining the instrument in a safe operating condition If the instrument is used in a manner not specified by the manufacturer the protection provided by the instrument may be impaired The meter protection rating against the users is double insulation per IEC EN61010 1 2nd Ed UL61010 1 2nd Ed CAN CSA C22 2 No 61010 1 0 92 IEC EN61010 2 032 UL61010B 2 032 CAN CSA C222 No 61010 2 032 04 amp IEC EN61010 031 2002 A1 2008 Measurement Category III 600V AC amp DC Per IEC61010 1 2010 OVERVOLTAGE CATEGORY OVERVOLTAGE CATEGORY II CAT Il is for equipment intended to be supplied from the building wiring It applies both to plug connected equipment and to PERMANENTLY CONNECTED EQUIPMENT OVERVOLTAGE CATEGORY III C2. 600V x 1 414 2 5KQ decreasing abruptly to approx 3 4mA 600V x 1 414 250kQ within a fraction of a second Do not use AutoCheck mode on circuits that could be damaged by such low input impedance Instead use slide switch selector or high input impedance voltage modes to minimize loading for such circuits While in AutoCheck function press SELECT button momentarily and release to manually select the low input impedance LoZ ACV Hz VFD ACV and DCV functions as well as the Q Resistance Continuity d Capacitance and gt Diode functions in sequence For Model 186 4k Capacitance and Diode functions are set in different slide function positions 3007 AMIL 3 Ni on T A F Aulo op V Wom rien WIL Note 1 Both ACV LoZ amp VFD ACV LoZ function selections are equipped with low pass filter to deal with VFD Variable Frequency Device signals VFD ACV Loz selection however further pre selects the most appropriate voltage ranges and thus the Hz trigger levels to best cope with most VFD Voltage and VFD Frequency applications 2 When using Diode test function normal forward voltage drop forward biased for a good silicon diode is between 0 400V to 0 900V A reading higher than that indicates a leaky diode defective A zero reading indicates a shorted diode defective An OL indicates an open diode defective Reverse
3. If any defects are found replace them immediately Only use the test lead provided with the equipment or UL Listed Probe Assembly rated CAT III 600V or better This Clamp on meter is designed to apply around or remove from uninsulated hazardous live conductors But still individual protective equipment must be used if hazardous live parts in the installation where measurement is to be carried out could be accessible CAUTION Disconnect the test leads from the test points before changing meter functions INTERNATIONAL ELECTRICAL SYMBOLS Caution Refer to the explanation in this Manual Caution Risk of electric shock Earth Ground Double Insulation or Reinforced insulation Fuse AC Alternating Current DC Direct Current Application around and removal from hazardous live conductors is permitted 2 CENELEC Directives The instruments conform to CENELEC Low voltage directive 2006 95 EC and Electromagnetic compatibility directive 2004 108 EC o fore S 3 PRODUCT DESCRIPTION This user s manual uses only representative model s for illustrations Please refer specification details for function availability to each model 10 cO ZA MAX 600A 600V CATIN CREST A A HoD True RMS PC Comm VFD AUTO I lt ux m I Ji ne veo LID AIO af auai 1 Antenna for Non Contact EF Detection 2 Hand Finger Barrier to indicate the limits of safe access of the meter duri
4. the Red test probe for direct contact measurements PC computer interface capabilities The instrument equips with an optical isolated interface port at the meter back for data communication Optional purchase PC interface kit BRUA 13X is required to connect the meter to the PC computer RS232 or USB ports Press and hold the HOLD button while turning the meter on to enable meter PC COMM output Hold The hold feature freezes the display for later view Press the HOLD button momentarily and release to toggle the hold feature 5ms CREST MAX capture mode Press CREST HOLD button for one second or more and release to activate CREST MAX capture Instantaneous Peak Hold mode to capture signal peak of voltage or current in duration as short as 5ms The LCD C amp MAX turn on Press again the button momentarily and release can toggle the combination use of HOLD feature Press the button for 1 second or more and release to exit CREST MAX capture mode Auto ranging and Auto Power Off are disabled automatically in this mode Backlighted LCD display Models 185 188 amp 189 only Press the SELECT button for 1 second or more to toggle the LCD backlight The backlight will also be turned off automatically after 32 seconds to extend battery life Relative Zero A mode Relative Zero allows the user to offset the meter consecutive measurements with the main display displaying reading as the reference value Press the REL button moment
5. the test leads connections reverse biased across the diode The digital display shows OL if the diode is good Any other readings indicate the diode is resistive or shorted defective CAUTION 1 Using Resistance Continuity Diode or Capacitance function in a live circuit will produce false results and may damage the meter In many cases the suspected component s must be disconnected from the circuit to obtain an accurate measurement reading 11 2 When using Capacitance function discharge capacitor s before making any measurements Large value capacitors should be discharged through an appropriate resistance load Electric Field EF Detection In Voltage Current or Temperature function press the EF button for one second or more and release to toggle to EF Detection feature The meter displays E F when it is ready Signal strength is indicated as a series of bar graph segments on the display together with variable beep tones MAX 600A BOOV CATT CRE B00V CAT TT mra AW e Non Contact EF Detection An antenna is located along the top right end of the clamp jaw which detects electric field surrounds energized conductors It is ideal for tracing live wiring connections locating wiring breakage and to distinguish between live or 12 earth connections eProbe Contact EF Detection For more precise indication of live wires such as distinguishing between live and ground connections use
6. 3 1 at half scale and with frequency components within the specified frequency bandwidth for non sinusoidal waveforms DC Voltage Input Impedance 10MQ2 50 pF nominal 0 5 5d CREST MAX Capture Mode Added range to indicate instantaneous Accuracy Specified accuracy plus 250 digits over range voltage values for changes gt 5ms in duration Input Impedance 10MQ2 50 pF nominal AC DC Voltage Model 189 Only AutoCheck DCV RANGE Accurac DC 50Hz 400Hz 6 000V 60 00V 600 0V amp 600V zo 4 sg Added range to indicate instantaneous Added range to indicate instantaneous over range voltage values over range voltage values AutoCheck Lo Z DCV Threshold Input Impedance 10MQ 50 pF nominal gt 1 5VDC amp lt 1 5VDC nominal AutoCheck Lo Z DCV Input Impedance AutoCheck _ACV with Low Pass Filter Initially approx 2 5kQ 650pF nominal RANGE Impedance increases abruptly within a 5Hz 20Hz fraction of a second as display voltage is 6 000V 60 00V 600 0V amp 600V 21 3 5 80d above 50V typical Ended up impedances 20Hz 200Hz vs display voltages typically are 15KQ 100V 200Hz 400Hz 100k2 300V 250kQ 600V Not specified for fundamental frequency gt 400Hz AC Voltage 2 Added range to indicate instantaneous RANGE over range voltage values 50Hz 400Hz 3 Accuracy linearly decreases from 2 50d 6 000V 60 00V 600 0V amp 600V 200Hz to 7 80d 400Hz 1 5d AutoCheck Lo Z ACV Thresho
7. AT Ill is for equipment intended to form part of a building wiring installation Such equipment includes socket outlets fuse panels and some MAINS installation control equipment OVERVOLTAGE CATEGORY IV CAT IV is for equipment installed at or near the origin of the electrical supply to a building between the building entrance and the main distribution board Such equipment may include electricity tariff meters and primary overcurrent protection devices TERMS IN THIS MANUAL WARNING identifies conditions and actions that could result in serious injury or even death to the user CAUTION identifies conditions and actions that could cause damage or malfunction in the instrument 2 WARNING To reduce the risk of fire or electric shock do not expose this product to rain or moisture The meter is intended only for indoor use To avoid electrical shock hazard observe the proper safety precautions when working with voltages above 60 VDC or 30 VAC rms These voltage levels pose a potential shock hazard to the user Before and after hazardous voltage measurements test the voltage function on a known source such as line voltage to determine proper meter functioning Keep your hands fingers behind the hand finger barriers of the meter and the test leads that indicate the limits of safe access of the hand held part during measurement Inspect test leads connectors and probes for damaged insulation or exposed metal before using the instrument
8. adjacent current carrying conductor lt 0 01A A Specified with Relative Zero A mode applied to offset the non zero residual readings if any Below 16 of range add 10d to the specified accuracy DC ACA Current Clamp on Model 189 Onl Accuracy 2 True RMS Crest Factor lt 1 7 1 at full scale amp lt 3 4 1 at half scale Induced error from adjacent current carrying conductor lt 0 01A A Specified with Relative Zero A mode applied to offset the non zero residual readings if any Below 16 of range add 10d to the specified accuracy ACA Current Models 186 amp 189 Clamp on True RMS Crest Factor Model 189 only lt 1 7 1 at full scale amp lt 3 4 1 at half scale Induced error from adjacent carrying conductor lt 0 01A A Below 16 of range add 10d to the specified accuracy current ACA Current Models 181 183 185 amp 188 Clamp on RANGE 50Hz 400Hz Accuracy 2 3 True RMS Models BM183 188 Crest Factor lt 2 5 1 at full scale amp lt 5 0 1 at half scale Add 12d to specified accuracy while reading is at 1 to 10 of range 1 8 3d Induced error from adjacent current carrying conductor lt 0 05A A 3 Specified accuracy is from 1 to 100 of range and for measurements made at the jaw center When the conductor is not positioned at the jaw center position errors introduced are Add 1 to specified accuracy for measurements made WITHIN
9. arily and release to toggle Relative Zero mode Manual or Auto ranging Press the RANGE button momentarily and release to select manual ranging and the meter will remain in the range it was in the LCD turns off Press the button again to step through the ranges Press and hold the button for 1 second or more and release to resume auto ranging Note Manual ranging feature is not available in Hz and 4k function ranges 13 Set Beeper Off Press the RANGE button while turning the meter on to temporarily disable the Beeper feature Turn the slide switch OFF and then back on to resume Auto Power Off APO The Auto Power Off APO mode turns the meter off automatically to extend battery life after approximately 34 minutes of no rotary switch or push button operations To wake up the meter from APO press the SELECT button momentarily and release or turn the slide switch OFF and then back on Always turn the slide switch to the OFF position when the meter is not in use Disabling Auto Power Off Press and hold the SELECT button while turning the meter on to temporarily disable the Auto Power Off APO feature Turn the slide switch OFF and then back on to resume 5 MAINTENANCE WARNING To avoid electrical shock disconnect the meter from any circuit remove the test leads from the input jacks and turn OFF the meter before opening the case Do not operate with open case Trouble Shooting If the instrument fails to operate check batteries and
10. e meter uses standard 1 5V AAA Size battery X 2 Loosen the 2 captive screws from the battery cover case Lift the battery cover case Replace the batteries Replace battery cover case Re fasten the screws GENERAL SPECIFICATIONS Display 3 5 6 digits 6000 counts amp 3 1 2 digits 1 999 counts for Hz Polarity Automatic Update Rate 5 per second nominal Operating Temperature 0 C to 40 C 15 Relative Humidity Maximum relative humidity 80 for temperature up to 31 C decreasing linearly to 50 relative humidity at 40 C Pollution degree 2 Storage Temperature 20 C to 60 C lt 80 R H with battery removed Altitude Operating below 2000m Temperature Coefficient nominal 0 15 x specified accuracy C 0 C 18 C or 28 C 40 C or otherwise specified Sensing Average sensing for Models 181 185 amp 186 AC True RMS for Models 183 amp 188 AC amp DC AC True RMS for Model 189 Safety Double insulation per IEC61010 1 2nd Ed EN61010 1 2nd Ed UL61010 1 2nd Ed amp CAN CSA C22 2 No 61010 1 0 92 to CAT III 600V and CAT IV 300V AC amp DC Transient Protection 6 0kV 1 2 50us surge Overload Protections Clamp on jaws 600A rms continuous amp COM Terminals all other functions 600VDC VAC rms E M C Meets EN61326 1 2006 EN55022 EN61000 3 2 EN61000 3 3 EN61000 4 2 EN61000 4 3 EN61000 4 4 EN61000 4 5 EN61000 4 6 EN61000 4 8 EN61000 4 11 In an RF field of 3V m Capacitance function is n
11. eshold of 1 5V DCV or VFD ACV up to the rated 8 600V is present the meter displays the voltage value in appropriate DCV or VFD ACV whichever larger in peak magnitude Note Range Lock and Function Lock Feature When a measurement reading is being displayed in AutoCheck mode press the RANGE or SELECT button momentarily 1 time can lock the range or function it was in Press the button momentarily repeatedly to Step through the ranges or functions As Hazardous Alert When making resistance measurements in AutoCheck mode an unexpected display of voltage readings alerts you that the object under test is being energized Ghost voltage Buster Ghost voltages are unwanted stray signals coupled from adjacent hard signals which confuse common multimeter voltage measurements Our AutoCheck mode provides low ramp up input impedance approx 2 5kQ at low voltage to drain ghost voltages leaving mainly hard signal values on meter readings It is an invaluable feature for precise indication of hard signals such as distinguishing between hot and open wires to ground in electrical installation applications WARNING 9 AutoCheck mode input impedance increases abruptly from initial 2 5kQ to a few hundred kQ s on high voltage hard signals LoZ displays on the LCD to remind the users of being in such low impedance mode Peak initial load current while probing 600VAC for example can be up to 340mA
12. hich in BRYMEN s opinion has been misused altered neglected or damaged by accident or abnormal conditions of operation or handling To obtain warranty service contact your nearest BRYMEN authorized agent or send the product with proof of purchase and description of the difficulty postage and insurance prepaid to BRYMEN TECHNOLOGY CORPORATION BRYMEN assumes no risk for damage in transit BRYMEN will at its option repair or replace the defective product free of charge However if BRYMEN determines that the failure was caused by misused altered neglected or damaged by accident or abnormal conditions of operation or handling you will be billed for the repair THIS WARRANTY IS EXCLUSIVE AND IS IN LIEU OF ALL OTHER WARRANTIES EXPRESSED OR IMPLIED INCLUDING BUT NOT LIMITED TO ANY IMPLIED WARRANTY OR MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE OR USE BRYMEN WILL NOT BE LIABLE FOR ANY SPECIAL INDIRECT INCIDENTAL OR CONSEQUENTIAL DAMAGES BRYMEN BRIGHT PEOPLE S CHOICE BRYMEN TECHNOLOGY CORPORATION TEL 886 2 2226 3396 FAX 886 2 2225 0025 htto Awww brymen com eS PRINTED ON RECYCLABLE PAPER PLEASE RECYCLE COPYRIGHT MMXI Btc ALL RIGHTS RESERVED P N 7M1C 1161 0001 PRINTED IN TAIWAN
13. is determined by the ACV or ACA function range being in use Press RANGE button to select different function ranges and thus trigger levels manually 5 ACA Hz DCA Models 186 amp 189 only amp DC ACA HZ Model 189 only functions Set the slide switch to select A function Input is made through the clamp jaws for non invasive current measurements Defaults at ACA Hz Function Press SELECT button momentarily and release to select the subject functions in sequence MAX 600A MAX 600A MAX 600A sooV CATH GUSTS soov CATH GESTS soov CATIA GESTS An eS a _ k L AC DC EF AC DC EF AC DC EF True RMS RELA True RMS RELA True RMS RELA PC Comm PC Comm PC Comm VFD C VFD VFD af I al rat ai MAX COM 600VCATM O O CAUTION Application and removal of the Clamp on meter For non invasive current measurements press the jaw trigger and clamp the jaws around conductor s of only one single pole of a circuit for load current measurement Make sure the jaws are completely closed or else it will introduce measurement errors Enclosing conductor s of more than one pole of a circuit may result in differential current like identifying leakage current measurement Locate the conductor s at the Jaws center as much as possible to get the best measuring accuracy For removal press the jaw trigger and remove the jaws from the conductor s Adjacent cu
14. jaw marking lines away from jaw opening Add 4 to specified accuracy for measurements made BEYOND jaw 18 marking lines toward jaws opening Hz Line Level Frequency Sensitivity V 10Hz 1999Hz OV 10Hz 1999Hz 00V VFD60V 9 VFD 600V 9 Accuracy 0 1 4d 1 VFD sensitivity linearly decreases from 10 F S 200Hz to 40 F S 400Hz 600A VFD 6V Non Contact EF Detection i Bar Graph Typical Voltage n a 20V tolerance 10V 36V 55V tolerance 23V 83V a 110V tolerance 59V 165V sicher 220V tolerance 124V 330V 2 440V tolerance 250V 600V Indication Bar graph segments amp audible beep tones proportional to the field strength Detection Frequency 50 60Hz Detection Antenna Top side of stationary jaw Probe Contact EF Detection For more precise indication of live wires such as distinguishing between live and ground connections use the Red test probe for direct contact measurement Models 186 amp 189 display instead 2 Models 186 amp 189 display instead the LIMITED WARRANTY BRYMEN warrants to the original product purchaser that each product it manufactures will be free from defects in material and workmanship under normal use and service within a period of one year from the date of purchase BRYMEN s warranty does not apply to accessories fuses fusible resistors spark gaps batteries or any product w
15. ld gt 1 5V 50 60Hz nominal AutoCheck Lo Z ACV Input Impedance Added range to indicate instantaneous over range voltage values Initially approx 2 5kQ2 650pF nominal Impedance increases abruptly within a fraction of a second as display voltage is above 50V typical Ended up impedances vs display voltages typically are 15kQ2 100V 100kQ2 300V 250kQ 600V Audible Continuity Tester Audible Threshold Between 10Q and 2000 Response time 32ms approx AutoCheck Ohm RANGE Accuracy 00 00 6 000KQ 60 00KQ 0 5 5d 6 0 8 5d 1 2 5d 2 3 5d Open Circuit Voltage 0 45VDC typical AutoCheck Ohm Threshold lt 10 00MQ nominal 2 Unspecified for range 40MQ 60MQ on Models 186 amp 189 Capacitance RANGE Accuracy 1 0 00nF 600 0nF 6 000uF 2 0 5d 6 60 00uF 600 0uF 3 5 5d 2 2000 uF 4 0 5d 2 Accuracies with film capacitor or better 2 Temperature Coefficient 0 25 x specified accuracy C 0 C 18 C or 28 C 40 C Diode Tester RANGE 1 000V 1 0 3d Test Current 0 56mA typically 17 Open Circuit Voltage lt 1 8VDC typically DCuA Models 185 amp 188 only Burden Accuracy T RANGE 600 0uA 2000uA 0 5 5d 3 5mV uA Temperature Models 185 188 amp 189 only K type thermocouple range amp accuracy not included DCA Current Clamp on Models 186 amp 189 Onl RANGE 60 00A 3 1 5 8d 600 0A 1 5 5d Induced error from
16. ng systems If a flame signal current with inadequate strength or fluctuation beyond 10 check the following to avoid the risk of unwanted flame relay dropout For gas or oil flames Minipeeper Low supply voltage Detector location Defective detector wiring Dirty viewing windows Faulty Minipeeper For oil flames Photocell Detector location amp wiring Smoky flame or poorly adjusted air shutter Faulty Photocell Temperature over 165 F 74 C at photocell For gas flames Flame Rod Ignition interference A flame signal current difference with the ignition both on and off greater than 0 5uA indicates the presence of ignition interference Insufficient ground must be at least 4 times the detector area Flame lifting off burner head ground or not continuously in contact with the flame rod Temperature in excess of 600 F 316 C at the flame electrode insulator causing short to ground AutoCheck mode This innovative AutoCheck feature automatically selects measurement function of DCV VFD ACV z with low pass filters or Resistance Q based on the input via test leads eWith no input the meter displays Auto when it is ready eWith no voltage signal but a resistance below 10M nominal is present the meter displays the resistance value When the resistance is below the Audible Threshold the meter further gives a continuity beep tone eWhen a signal above the voltage thr
17. ng measurement 3 Push buttons for special functions amp features 4 Input Jack for all functions EXCEPT non invasive DCA or ACA current functions 5 Common Ground reference Input Jack for all functions EXCEPT non invasive DCA or ACA current functions 6 Slide switch Selector to turn the power ON OFF and Select a function 7 3 5 6 digits 6000 counts amp 3 1 2 digits 2000 counts dual numeric LCD display 8 Jaw trigger for opening the clamp jaw 9 Jaw center indicator with DCA polarity for Models 186 amp 189 at where best DCA or ACA accuracy is specified 10 Jaw marking line for ACA position error indication Models 181 183 185 amp 188 only 4 4 OPERATION CAUTION Before and after hazardous voltage measurements test the voltage function on a known source such as line voltage to determine proper meter functioning MAX 600A MAX 600A MAX 600A 600V CAT I gt realy 600V CAT Ia caer 600V CAT A C Af CO Af AC of EF AC DC EF AC DC EF True RMS RELA True RMS RELA a aa eva aa V w ELECT NGE ACV Hz DCV amp DC ACV HZ Model 189 only functions Set slide switch to Voltage function position s Inputs are made through the test leads terminals Defaults at ACV z Function Press SELECT button momentarily and release to select the subject functions in sequence For Models 181 amp 183 ACV amp DCV functions are in different slide switch positions Note The Hz trigger level
18. ot specified Other function ranges Total Accuracy Specified Accuracy 150 digits Performance above 3V m is not specified Power Supply 1 5V AAA Size battery X 2 Power Consumption Typical 13mA for Current functions on Models 186 amp 189 5 2mA on others Low Battery Below approx 2 4V APO Timing Idle for 34 minutes APO Consumption 10uA typical Dimension L190mm X W63mm X H32mm Weight 227 gm for Models 186 amp 189 179 gm for Models 181 183 185 amp 188 Jaw opening amp Conductor diameter 30mm max for Models 186 amp 189 26mm max for Models 181 183 185 amp 188 Accessories Test leads pair user s manual Bkp60 banana plug K type thermocouple x 1 Models 185 188 amp 189 only Optional purchase accessories USB interface kit BRUA 13X BKB32 banana plug to type K socket plug adaptor Models 185 188 amp 189 only Special Features AutoCheck V amp Q VFD V amp VFD Hz Backlighted LCD Models 185 188 amp 189 only 5ms CREST MAX Capture mode Peak Hold Auto ranging Relative Zero mode Display Hold EF Detection NCV Interface capabilities with PC computers 16 Electrical Specifications Accuracy is reading digits number of digits or otherwise specified at 23 C 5 C amp less than 75 relative humidity True RMS Models 183 188 amp 189 ACV amp DC ACV on Model 189 accuracies are specified from 5 to 100 of range or otherwise specified Maximum Crest Factor lt 1 65 1 at full scale amp lt 3
19. rrent carrying devices such as transformers motors and conductor wires will affect measurement accuracy Keep the jaws away from them as much as possible to minimize influence Temperature function Models 185 188 amp 189 only For Model 189 defaults at C Celsius readings Press SELECT button momentarily and release to select F Fahrenheit readings For Models 185 amp 188 defaults at ACA Hz readings Press SELECT button momentarily and release to select C Celsius readings Press SELECT button momentarily and release once again to select F Fahrenheit readings Inputs are made through the test leads terminals Be sure to insert the banana plug type K temperature bead probe Bkp60 with correct polarities You can also use a plug adapter Bkb32 Optional purchase with banana pins to type K socket to adapt other type K standard mini plug temperature probes DCuA Current function Models 185 amp 188 only Set slide switch to DCuA function position Inputs are made through the test lead terminals Application notes T The DCuA function is designed especially for HVAC R flame sensor applications The 0 1uA resolution is useful for identifying the minute current changes in flame detector applications Flame signal current check should indicate steady flame signal of at least 2uA for a rectification type or 1 5uA for an ultraviolet type 8uA for self checki
20. test leads etc and replace as necessary Double check operating procedure as described in this user s manual If the instrument voltage resistance input terminal has subjected to high voltage transient caused by lightning or switching surge to the system under test by accident or abnormal conditions of operation the protective impedance components in series might be blown off become high impedance like fuses to protect the user and the instrument Most measuring functions through this terminal will then be open circuit Such components should then be replaced by qualified technician Refer to the LIMITED WARRANTY section for obtaining warranty or repairing service Accuracy and Calibration Accuracy is specified for a period of one year after calibration Periodic calibration at intervals of one year is recommended to maintain meter accuracy If self diagnostic message C_Er not available to Model 189 is being displayed while powering on 14 some meter ranges might be largely out of specifications To avoid mis leading measurements stop using the meter and send it for re calibration Refer to the LIMITED WARRANTY section for obtaining calibration repairing or warranty service Cleaning and Storage Periodically wipe the case with a damp cloth and mild detergent do not use abrasives or solvents If the meter is not to be used for periods of longer than 60 days remove the batteries and store them separately Battery replacement Th
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