USER`S MANUAL BM878, BM877 & BM876
Contents
1. Lock Test mode is recommended for continuous measurements To apply press the LOCK button momentarily to display the annunciator LOCK before pressing the TEST button momentarily The LCD will show both amp to indicate continuous measurement is active Press again either button momentarily to release the Lock Test mode 11 ZERO mode is useful for offsetting measuring probes residue resistance reading in consecutive readings Only residue readings from the 2 1990 200 range can be set as offset reference value To apply activate the Lock Test as mentioned above Connect the probes together to show the residue resistance reading and then press the ZERO button momentarily The LCD will display a zero reading with the annuciator A turns on The residue resistance reading is then saved temporarily as offset value for the that follows until a further function change or power off 12 Insulation Resistance function WARNING The LCD icons MEJA used together throughout in this manual is referred as active measurements of Insulation2. Pu 28802 Dn Mom MGR Lu LP D LII ems Test Voltage LOCKA Nw 2 7 LOCKA ate nsuLATION REC PI DAR INSULATION REC 3 INSULATION v mA he 200 EDU 100V 250V a INSULATION 1000 1kV INS INS 1000V DV CAT 600V CATE lo us penes INSULATION USER S MANUAL RYMEN 878 877 amp 876 Insulation Tester Combination Multimeter 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 is intended only for indoor use 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 Information about Measurement Categories Measurement Category IV is applicable to test and measuring circuits connected at the source of the building s low voltage MAINS installation Examples are measurements on devices installed before the main fuse or circuit breaker in the building installation Mea
3. visible input warning PI DAR mode Models 877 amp 876 only Compare mode Models 877 amp 876 only Electrical Specifications Accuracy is reading digits number of digits or otherwise specified at 23 5 amp less than 80 relative humidity True RMS voltage amp current accuracies are specified from 1 to 100 of range or otherwise specified Maximum Crest Factor 1 70 1 at full scale amp 3 4 1 at half scale and with frequency components within the specified frequency bandwidth for non sinusoidal waveforms 23 AC Voltage ANGE 50Hz 60Hz 000V 60 00V 600 0V 1000 1 3d 000V 60 00V 600 0V 1000V 000V 60 00V 2 3d 00 0V 1000V 4 5d Input impedance 10MQ 110pF nominal VFD AC Voltage Accuracy 10Hz 45Hz 00 0V 00 0V 600 0V 7 542 Unspecified for fundamental frequency gt 440Hz 2 linearly decreases from 2 5d 200HZz to 7 5d 9440Hz Input impedance 10 110pF nominal DC Voltage RANGE 6 000V 60 00V 600 0V 0 2 3d 1000V 0 3 3d Input impedance 10MQ 110pF nominal 24 Ohms RANGE o 12 600 00 0 9 54 6 000 60 00 600 0 0 9 2d 6 000MQ 1 2 3d 2 2 3 0 6d Open Circuit Voltage lt 1 5VDC typical Audible Continuity Tester Audible threshold between 200 and 20002 Response time 30ms Diode Tester Test Current Typical Open Circuit Voltage 2 000V 1
4. well as on the add on accessories like Caps or Clips if any for applicable rating changes CAUTION Disconnect the test leads from the test points before changing functions Always set the instrument to the highest range and work downward for an unknown value when using manual ranging mode 2 CENELEC DIRECTIVES The instruments conform to CENELEC Low voltage directive 2006 95 EC and Electromagnetic compatibility directive 2004 108 EC 3 3 PRODUCT DESCRIPTION Note Top of the line model is used as representative for illustration purposes Please refer to your particular model for function availability 1 3 5 6 digits 6000 counts dual displays 2 Push buttons for special MAXMIN E ALLEE EE functions amp features 5 NA NA NA Ak Li MGQ 3 Selector to turn the Li Power On or and Select a function Test Voltage 4 Input Jack for m Earth Continuity Test E function Temp mA c lt lt 5 Common Ground reference Input Jack for all functions EXCEPT Insulation Resistance function 6 Input Jack for all functions EXCEPT Fe Earth Continuity Test and mA functions 7 Input Jack for Insulation function Ground reference INS or mA function positive input Analog bar graph The analog bar graph provides a visual indication of measurement like a traditional analog meter needle It is excellent in detecting faulty contacts identifying potent
5. 596 4d 2 8 VDC Capacitance Model 878 only ANGE with film capacitor or better 2 Readings not available below 200nF DCmV Model 878 only 60 00 0 5 3d 600 0 0 1 3d Input impedance 10MQ 140pF nominal ACmvV Model 878 only RANGE Accuracy 50Hz 60Hz 1 3d 60 00mV 600 0mV 60Hz 3kHz 2 3d 3kHz 5kHz 3 5d Input impedance 10MQ 140pF nominal 25 Temperature Model 878 only ANGE 50 0 C 0 0 C 0 C 50 0 C 0 0 537 0 58 0 32 0 F 2 0 122 0 F 22 0 F 999 0 F 2 4 F thermocouple range amp accuracy not included DCmA Model 878 only ANGE Burden Voltage 60 00mA 600 0mA 0 5 3d 3 0mVImA Model 878 only RANGE Accuracy Burden Voltage 50Hz 1KHz 60 00mA 600 0mA 1 5 3d 3 0mV mA Earth Continuity Test Models 878 amp 877 only RANGE Test Current Accuracy Measuring Range 20000 us 20 000 gt 90 Open Circuit Voltage gt 4VDC Live Circuit Detector Inhibit test if terminal voltage gt 2V prior to initialization of test Specified measuring range at percentage operating uncertainty lt 30 per IEC EN61557 4 requirements 26 Hz Line Level Frequency BN 8 E 600V Accuracy 0 02 4d 878 Only 2VFD sensitivity linearly decreases from 10 F S 200Hz to 40 F S 440Hz Insu
6. Automatic Update Rate 5 per second nominal 61 Segments Bar graph 40 per second max Operating Temperature 10 C to 40 Relative Humidity Maximum relative humidity 90 for temperature up to 28 decreasing linearly to 50 relative humidity at 40 Pollution Degree 2 IP Rating IP40 Storage Temperature 20 to 60 C lt 80 with battery removed Altitude Operating below 2000m Temperature Coefficient nominal 0 15 x specified accuracy 10 C 18 C or 28 C 40 C or otherwise specified Sensing AC True RMS Safety Double insulation per IEC UL EN61010 1 Ed 3 0 IEC EN61010 2 030 Ed 1 0 IEC EN61010 2 033 Ed 1 0 IEC UL EN61010 031 Ed 1 1 and CAN CSA C22 2 No 61010 1 12 Ed 3 0 to Category IIl 1000 V AC amp DC and Category IV 600V AC amp DC Compliance to IEC EN61557 2007 Per CE requirements not certified by UL IEC EN61557 1 IEC EN61557 2 amp IEC EN61557 4 where applicable Overload Protections Insulation Resistance amp mA Model 878 only 0 4A 1KV IR 30 or better Earth Continuity Test Models 878 amp 877 only 0 25A 1KV IR 30 or better V 1100Vrms mV Q amp Others 1000 Vrms Transient Protection 8kV 1 2 50 surge 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 Total Accuracy Specified Accuracy 25 digits Performance above 3V m is not
7. meter beeps and displays gt 2 plus A warning against energized circuit of more than 2V is being connected before the is active Connecting to energized circuits when the is active will produce false results and may blow the protection fuse and or damage the instrument Always check with voltage functions and remove power from the circuits before carrying out the The results of measurements can be adversely affected by impedances of additional operating circuits connected in parallel or by transient currents Setup as illustrated below This function uses measuring currents of 1200mA for 2 1990 10 range and 90 for 21 990 range measurements auto ranging Press the RANGE button momentarily to override auto ranging and select a range Press and hold for 1 second or more to resume auto ranging The 5 active as long as the TEST button is pressed and hold The TEST buttons on the meter and on the Remote Probe work alike The Continuity Resistance readings are shown on the primary display The RANGE of measuring current is indicated on the secondary display as 200 or 90 The meter further gives beep sound for continuity when the active Resistance reading is lt 20 Default startup primary display reading is Allow enough time for a good measuring result After the is released the last measuring display stays until the next or a function change
8. possible damage to the meter due to improper connections to the mA INS mA for Model 878 input jack when other functions especially voltage function is selected 19 Set Beeper Off Press the RANGE button while turning the meter on to temporarily disable the Beeper feature Turn the rotary 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 20 minutes of no rotary switch or push button operations To wake up the meter from APO press the SELECT or PI DAR button momentarily or turn the rotary switch OFF and then back on Always turn the rotary switch to the OFF position when the meter is not in use Disabling Auto Power off Press the SELECT button while turning the meter on to temporarily disable the Auto Power Off feature Turn the rotary 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 Install only the same type of fuse or equivalent 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 Cleaning and Storage Periodically wipe the case with a damp cloth and mild detergent do not use abrasi
9. specified Power Supply Four Alkaline AA batteries IEC LR6 Power Consumption 4 5mA typical except ACV amp VFD ACV z 7 0mA Earth Continuity Test 22 110mA 200 Range 220mA 2 00 Range Tester can perform at least 3000 Earth Continuity Test measurements with new alkaline batteries at room temperature These are standard tests of 1 with a duty cycle of 5 seconds on and 25 seconds off Insulation Resistance 1 test current 50V output voltage 25mA 100V output voltage 45mA 250V output voltage 85mA 500 output voltage 170mA 1000V output voltage 440mA Tester can perform at least 950 insulation tests with new alkaline batteries at room temperature These are standard tests of 1000 V into 1 with a duty cycle of 5 seconds on and 25 seconds off Low Battery approx 4 6V APO Timing Idle for 20 minutes APO Consumption 50 typical Dimension L208mm X W103mm X H64 5mm with holster Weight 635 gm with holster Accessories Test probe pair Alligator clip pair Remote control probe Models 878 amp 877 only Holster User s manual Bkp60 banana plug K type thermocouple Model 878 only Optional Accessories Remote control probe Model 876 only BKB32 banana plug to type K socket plug adaptor Model 878 only Special Features Record MAX MIN readings Display Hold Backlighted LCD VFD V amp Hz readings Lock Test mode for Insulation resistance amp Earth Continuity Test Models 878 amp 877 only BeepJack audible amp
10. 0kO 200kO 500kO 1MO 2M O 5MO 10 20M O 50 for 50V amp up Additional 100MQ for 100V amp up 200 for 250V amp up and 500 for 500V amp 1000V ranges 16 Gazer RANGE Gara yr LATION M 200 JACK INS PI DAR mode Models 877 amp 876 only Polarization Index is the ratio of the 10 minute insulation resistance to the 1 minute insulation resistance B E 10 min ix R 1 min DAR Dielectric Absorption Ratios is the ratio of the 1 minute insulation resistance to the 30 second insulation resistance DAR R 1 min 30 A general guide to interpret the PI or DAR test results are Insulation Condition PI Polarization Index DAR Dielectric Absorption Ratios Dangerous 0 J 5 0 0 0 0 Questionable Excellent Press the PI DAR button momentarily to enable PI mode with the LCD annunciator turned on Press momentarily again toggles to the DAR mode with the LCD annunciator 9 turned on The secondary display shows the measuring lap times of 10 00 and 01700 for and DAR modes respectively 17 Then activate Lock Test mode BILOCK amp to start Pl or DAR count down measurements The timer on the secondar
11. Resistance function through the activation of the TEST button on the meter or on the Remote Probe The sources a user selectable test voltage of 50V 100V 250V 500V or 1000V to measure Insulation Resistance values The a flashing manner warns against test voltage is being output Use extreme caution when operating the to avoid electric shock TESA is inhibited when the meter sounds 3 beeps and displays the detected voltage value plus A warning against energized circuit of more than 30V is being connected before the is active Measurements shall only be carried out on parts of an installation or equipment that are de energized Connecting to energized circuits when the IBDA is active will produce false results and may damage the instrument Always check with voltage functions and remove power from the circuits before carrying out the EDA Setup as illustrated below Select an intended test voltage of 50V 100V 250V 500V or 1000V For model 878 press the RANGE Test Voltage button momentarily to select the voltage in sequence Last selection will be saved as power up default for repeat measurement convenience For Models 877 or 876 turn the Rotary Knob directly to select the intended voltage instead The secondary display shows the selected voltage for 1 second right after the selection and then displays the actual detected voltage readings The voltage annunciator by the secondary display remains indicating the volt
12. age selected 13 nnnn y nnn uv Lobes T MEE E _ rid IL L Nw Test Voltage Test Voltage ye Voltage Locka SELECT RANGE 2 HOLDE SELECT ZERO HOLD RANGE Cs zERO GEO voltage A The is active as long as the TEST button is pressed and hold The TEST buttons on the meter and on the Remote Probe work alike The Insulation Resistance readings are shown on the primary display Default startup primary display reading is Allow enough time for a good measuring result After the is released the measuring loop starts to discharge the testing voltage The last measured resistance reading stays on the primary display until the next or a function change The secondary display keeps showing the actual detected voltage readings Lock Test mode is recommended for continuous measurements To apply press the LOCK button momentarily to display the annunciator LOCK before pressing the TEST button momentarily The LCD will show both Lock amp MEIA to indicate continuous measurement is active Press again either button momentarily to release the Lock Test mode NOTE Maximum display reading of each Insulation R
13. esistance range is subjected to the test voltage selected They are 55 0MQ 110 0MQ 275MO 550MQ amp 25 0GQ for 50V 100V 250V 500V amp 1000V respectively Over range is indicated as gt maximum display reading Me Test Voltage SELECT RANGE 2 0 C T Temp Pun 200m 2 9 20 15 COMPARE mode Models 877 amp 876 only This mode uses a preset insulation resistance threshold value for PASS FAIL measuring comparison The LCD annuciator turns on when the reading is higher than the selected threshold value On the contrary the LCD annuciator FAIL turns on and the meter chirps when the reading is below such value To enable press the COMPARE button momentarily The LCD annuciator 8 turns on Press the COMPARE button momentarily again to select the preset threshold values in sequence Last threshold values selected for each test voltage range will be saved separately as power up default for repeat measurement convenience Press the COMPARE button for 1 second or more to exit NOTE Selectable threshold values for the test voltage ranges are 10
14. iometer clicks and indicating signal spikes during adjustments 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 ACV z amp VFD ACV 2 functions Press the SELECT button momentarily to toggle the subject functions Last selection will be saved as power up default for repeat measurement convenience For ACV z function press the RANGE button momentarily to select other ranges when needed For VFD ACV 2 function only 600V range is available to best cope with the range of most Variable Frequency Drives VFD measurements To select DCV function turn the Rotary Knob to DCV position for measurements VED V Hz V Hz V AUTO cnna AUTO LILI 1 WON JUANG CAIN Y of ILL SULLY ye Test Voltage v Test Voltage LOCKA we Test Voltage LOCKA SELECT RANGE s zeRO HOLDE RANGE 2 ZERO HOLDE SELECT RANGE F ZERO HOLDE C UE Q Resistance 4 Continuity functions Press the SELECT button momentarily to toggle the functions Last selection will be saved as power up default fo
15. lation Resistance Test Voltage 1 Test Current Accuracy 3 000MQ 30 00 55 0MQ 1mA 50 3 000MQ 30 00MQ 110 0MQ 1mA 100 3 000MQ 30 00 275 0MQ 1mA 250kQ 1 5 5d 1mA 500kQ 3 000 30 00MQ 300 0MQ 550 0MQ 3 000 30 00MQ 300 0MO 1 5 54 mA 1 2 0 5d 10 5d Actual output voltage 100 120 of Test Voltage Live Circuit Detector Inhibit test and display voltage reading instead if terminal voltage gt 30V prior to initialization of test Display voltage accuracies DCV 1 5 5d ACV 3 0 5d 50Hz 60Hz for Models 877 amp 876 unspecified gt 600Vac Specified measuring range is 0 020MQ 25 0GQ for percentage operating uncertainty B lt 30 per IEC EN61557 2 requirements 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 varistors batteries or any product which 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 t
16. ly again to disable Backlighted display For Model 878 press the 3 button momentarily to toggle the LCD backlight For Models 877 amp 876 press SELECT button for a second or more to toggle the LCD backlight The backlight will also be turned off automatically after approximate 37 seconds to extend battery life Auto or Manual ranging Volts mA amp O functions only Press the RANGE button momentarily to select manual ranging and the meter will remain in the range it was in the LCD turns off Press the button momentarily again to select an adjacent range Press and hold the button for 1 second or more to resume auto ranging Hold The hold feature freezes the display for later view Press the HOLD button momentarily to toggle the hold feature This feature does not apply to Earth Continuity Test amp Insulation Resistance functions MAXMIN Recording mode Press REC button momentarily to activate MAX MIN recording mode The LCD amp MAX MIN turn on The meter beeps when a new MAX maximum or MIN minimum reading is updated Press the button momentarily to read the Real time MAX and MIN readings in sequence Press the button for 1 second or more to exit MAX MIN recording mode When activated Auto Power Off is disabled automatically This feature does not apply to Earth Continuity Test amp Insulation Resistance functions Beep Jack Input Warning The meter beeps as well as displays InEr to warn the user against
17. o 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 1 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 http www brymen com ch PRINTED ON RECYCLABLE PAPER PLEASE RECYCLE COPYRIGHT MMXIV BTC RIGHTS RESERVED P N 7M1C 1391 0000 PRINTED IN TAIWAN
18. r repeat measurement convenience 4 Continuity function is convenient for checking wiring connections and operation of switches continuous beep tone indicates a complete wire 21 COM t s JOU M Tast Voltage SELECT RANGE s zERO CAUTION Using resistance or continuity function in a live circuit will produce false results and may damage the instrument In many cases the suspected component must be disconnected from the circuit to obtain an accurate reading 6 Diode Test 4 Capacitance Model 878 only functions Press the SELECT button momentarily to toggle the functions Last selection will be saved as power up default for repeat measurement convenience Model 877 Diode Test function is combined to its Rotary Knob position 46 E RENE WE cm CNN h SS gt dod dad nc nn ni LL Test Voltage Locka RANGE x zERO Test Voltage RANGE ZERO gt 200mA INSULATI 50 10 200mA FORWARD BIAS REVERSE BIAS CAUTION Discharge capaci
19. rtified by UL In particular Part 1 Ed 2 0 General requirements Part 2 Ed 2 0 Insulation Resistance and Part 4 Ed 2 0 Resistance of earth connection and equipotential bonding where applicable WARNING To reduce the risk of fire or electric shock do not expose this product to rain or moisture 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 Do not touch test lead tips or the circuit being tested while power is applied to the circuit being measured Keep your fingers behind the finger guards of the test leads during measurement Inspect test leads connectors and probes for damaged insulation or exposed metal before using the instrument If any defects are found replace them immediately Never attempt a voltage measurement with the test lead inserted into the INSJmA or gt lt input jack that is available Only replace the blown fuse with the proper rating as specified in this manual Only use the Test Probe Assemblies provided with the equipment or UL Listed Probe Assemblies with same rating or better IEC 61010 031 requires exposed conductive test probe tips to be 4mm for CAT Ill amp CAT IV ratings It is commonly achieved by permanently over molded plastic shrouds or by detachable Cap shrouds for interchangeable between CAT II ratings Refer to the category markings on your probe assemblies as
20. surement Category Ill is applicable to test and measuring circuits connected to the distribution part of the building s low voltage MAINS installation Examples are measurements on distribution boards including secondary meters circuit breakers wiring including cables bus bars junction boxes switches socket outlets in the fixed installation and equipment for industrial use and some other equipment such as stationary motors with permanent connection to the fixed installation Measurement Category Il is applicable to test and measuring circuits connected directly to utilization points socket outlets and similar points of the low voltage MAINS installation Examples are measurements on MAINS CIRCUITS of household appliances portable tools and similar equipment International Electrical Symbols A Caution Refer to the explanation in this Manual A Caution Risk of electric shock Earth Ground 9 Double Insulation or Reinforced insulation Fuse AC Alternating Current DC Direct Current 2 The instrument is protected throughout by Double Insulation per IEC UL EN61010 1 Ed 3 0 IEC EN61010 2 030 Ed 1 0 IEC EN61010 2 033 Ed 1 0 IEC UL EN61010 031 Ed 1 1 and CAN CSA C22 2 No 61010 1 12 Ed 3 0 to Measurement 1kV and CAT IV 600V AC amp DC All input terminals are also rated to such Measurement Categories requirements The instrument also meets the relevant Parts of EN61557 for CE requirements and are not ce
21. tors before making any measurement Large value capacitors should be discharged through an appropriate resistance load 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 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 DCmV functions Model 878 only Press the SELECT button momentarily to toggle the subject functions Last selection Will be saved as power up default for repeat measurement convenience ET mV mV force eee MN nn 2 Hz AUTO CPM 20913 DULL t 2006 Ga Gan C veio Crece z TempmA gt lt n 200mA 8 Temperature functions Model 878 only Press SELECT button momentarily to toggle and F readings Last selection will be saved as power up default for repeat measurement convenience Note Be s
22. ure 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 standard type K mini plug temperature probes DCmA ACmA functions Model 878 only Press the SELECT button momentarily to toggle the subject functions Last selection Will be saved as power up default for repeat measurement convenience Earth Continuity Test function Models 878 amp 877 only WARNING This function measures the Resistance values of earth connection and equipotential bonding in Low Voltage Distribution Systems up to Nominal Voltage Un 830V phase to phase DO NOT use on Systems with Nominal Voltages above that Measurements shall only be carried out on de energized circuits The measuring loop is protected by an 1 F fuse against accidental extraneous overvoltages The LCD icon used alone throughout in this manual is referred as active measurements of Earth Continuity Test function through the activation of the TEST button on the meter or on the Remote Probe Check the fuse before each Il If the fuse is open the meter will display when the is being activated at no circuit connection to the probes Refer to the maintenance section for fuse replacement is inhibited when the
23. ves or solvents If the meter is not to be used for periods of longer than 60 days remove the battery and store it separately Trouble Shooting If the instrument fails to operate check battery fuses 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 by accident or abnormal conditions of operation the series input protection resistors may be blown off become 20 high impedance like fuses to protect the user and the instrument Most measuring functions through this terminal will then be open circuit The series input protection resistors and the spark gaps or varistors should then be replaced by qualified technician Refer to the LIMITED WARRANTY section for obtaining warranty or repairing service Battery and Fuse replacement Battery use Four 1 5V AA battery IEC LR6 Fuses use Fuse F2 for INSJmA input 0 4A 1000Vac amp Vdc IR 30kA or better FF fuse Dimension 6 x 32 mm Fuse F3 for Earth Continuity Test input 0 25A 1000Vac amp Vdc IR 30kA or better FF fuse Dimension 6 x 32 mm Battery and Fuse replacement Loosen the screws from the access cover of the case bottom Lift the access cover Replace the batteries or fuse Re fasten the screws 21 GENERAL SPECIFICATION Display 3 5 6 digits 6 000 counts Polarity
24. y display started to count down The primary display shows the real time resistance readings until the timer shows 00 00 for a result The maximum display result is 5 0 and the display shows gt 5 0 for results beyond that If the measured resistance reading is over range the meter will stop TEA and display Err Press the PI DAR button for 1 second or more to exit PIT eo ESL LE cr mE JZERO LOCKA ye 3 2580 RANGE COMPARE HOLDO RANGE COMPARE s PuDAR Rec ES REC ZERO LOCKA 2 RANGE HOLDO INSULATION 200 INSULATION 18 Smooth y mode Insulation Resistance function only Smooth mode displays the running average of the last eight measured readings having changes within 300 counts in sequence On the contrary it displays directly without smoothing the measured reading that is beyond 300 counts in changes comparing to its former one Press the p button momentarily to enable with LCD annuciator gt turned on Press momentari
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