ennoLogic eM860T True RMS Digital Multimeter User Manual
Contents
1. 600mA 0 1mA 6A ImA 3 0 of rdg 8 digits 10A 10mA Above accuracies can be guaranteed within 5 100 of the full range The true RMS meter has residual values within 10 counts when the test leads are shortened but that will not affect the accuracy of measurement 1 Frequency Range for ACA 40Hz 400Hz 2 Overload protection F 10A 1000V fuse for 10A Overload protection F 0 63A 1000V fuse for uA and mA ranges 3 Maximum input current 600mA DC or 600mA AC rms for LA and mA ranges 10A DC or 10A AC rms for 10A ranges 4 For measurements gt 6A 15 seconds ON each 10 minutes Above 10A unspecified 5 MAINTENANCE This section provides basic maintenance information including fuse and battery replacement instructions Do not attempt to repair or service your Meter unless you are qualified to do so and have the relevant calibration performance test and service information 45 5 1 General Maintenance A To avoid electrical shock or damage to the meter do not get water inside the case Remove the test leads and any input signals before opening the case Periodically wipe the case with a damp cloth and mild detergent Do not use abrasives or solvents Dirt or moisture in the terminals can affect readings To clean the terminals Turn the meter off and remove all test leads Shake out any dirt that may be in the terminals Soak a new swab with a cleaning and oiling agent s2. 4 Read the displayed value The polarity of the red test lead connection will be indicated when making a DCV measurement NOTE The displayed values may be unstable especially in the 600mV range even though you do not connect the test leads to a measurement source 20 For better accuracy when measuring the DC offset of an AC voltage measure the AC voltage first Note the AC voltage range then manually select a DC voltage range equal to or higher than the AC range This improves the accuracy of the DC measurement by ensuring that the input protection circuits are not activated eMB6OT True RMS Multimeter left enno logic A ur via ei A cm la alt Figure 3 1a Measuring AC Voltage 21 EMBGOT True AMS Multimeter 1200 ennologic A EFSI Via Et ee aj WM cl been Figure 3 1b Measuring DC Voltage 22 3 2 2 Resistance Measurement A To avoid electrical shock and or damage to the instrument disconnect circuit power and discharge all high voltage capacitors before measuring resistance The Meter s resistance ranges are 600 0Q 6 000kQ 60 00kQ 600 0kQ 6 000M2 and 60 00MQ To measure resistance set up the Meter as shown in Figure 3 2 1 Set the rotary switch to Q4F 2 Connect the black and red test leads to the COM and VQ terminals respectively 3 Connect the test leads to the circuit or resistor being measured and read the displayed value Some tips for
3. Measurement Mode The Meter will display relative measurements in all functions except frequency To enter and exit the relative measurement mode 1 With the Meter in the desired function apply the test leads to the circuit to measure a value on which you want future measurements to be based 2 Press the RELA key to store the displayed value as reference value and activate relative measurement mode The difference between the reference value and subsequent readings will be displayed from now on 3 Press the RELA key again to return the Meter to normal Operation 3 1 5 TRUE RMS Measurement All AC measurement values are true RMS true root mean square values Frequency range is up to 1KHz 19 3 2 Measurement Functions 3 2 1 AC and DC Voltage measurement A To avoid electrical shock and or damage to the instrument do not attempt to take any voltage measurements that might exceed 1000Vdc or 1000Vac rms To avoid electrical shock and or damage to the instrument do not apply more than 1000Vdc or 1000Vac rms between the common terminal and the earth ground The Meter s voltage ranges are 600 0mV 6 000V 60 00V 600 0V and 1000V To measure AC or DC voltage set up and connect the Meter as shown in Figure 3 1 1 Set rotary switch to the DCV ACV or AC DCmV range 2 Connect the black and red test leads to the COM and V terminals respectively 3 Connect the test leads to the circuit being measured
4. Press the SELECT key to select DCA or ACA measuring mode For currents up to Gm A connect the black test lead to the COM terminal and the red test lead to the HA mA terminal For currents above 600mA and less than 10A connect the red test lead to the A terminal instead Disconnect break the circuit path to be tested 36 6 Connect or touch the black probe to the negative side of the break and connect or touch the red probe to the positive side of the break Reversing the leads will give a negative reading but will not damage the Meter 7 Turn on power to the circuit then read the display Be sure to note the measurement units at the right side of the display uA mA or A When OL is being displayed it indicates an over range situation and a higher range has to be selected 8 Turn off power to the circuit and discharge all high voltage capacitors Remove the Meter and restore the circuit to normal operation 37 ae True RMS Multimeter OFF open 2056 we ou uA 2 FA OFF sent o Figure 3 6 Measuring Current 3 2 9 NCV Non Contact Voltage Detect Set the rotary switch to the EF ACV mode Press the SELECT key to switch to NCV detect mode Hold the EF DETECT AREA at the top of the Meter close to the AC power cable or power socket If AC electrical voltage is 38 present the Buzzer warning will sound and one or more bar symbols will be displayed on the LCD The lowe
5. meter to the circuit In TV repair work or when carrying out measurements on power switching circuits remember that high amplitude voltage pulses at the test points can damage the multimeter Use of a TV filter will attenuate any such pulses e Use just one 6F22 battery properly installed in the Meter s battery case to power the Meter e Replace the battery as soon as the battery indicator E appears A low battery might produce false readings that can lead to electric shock and personal injury e Do not measure voltages above 1000V in Category III or 600V in Category IV installations e When in REL mode the REL symbol is displayed Caution must be used because hazardous voltage may be present e Do not operate the Meter with the case or part of the case removed 1 2 Battery Installation or Replacement A To avoid false readings which could lead to possible electric shock or personal injury replace the battery as soon as the battery indicator El appears Before installing or replacing the battery disconnect test leads and or any connectors from any circuit under test turn the meter off and remove test leads from the input terminals 7 ND ON Ch GI Set rotary switch to the OFF position Disconnect test leads and or any connectors from the terminals Remove the red protective rubber casing by carefully peeling it away from the black plastic enclosure Use a screwdrive
6. terminals function and range for your measurements When the range of the value to be measured is unknown check that the range initially set on the multimeter is the highest possible or wherever possible choose the autoranging mode To avoid damage to the instrument do not exceed the maximum limits of the input values shown in the technical specification tables When the multimeter is linked to measurement circuits do not touch unused terminals Caution when working with voltages above 60Vdc or 30V AC rms Such voltages pose a shock hazard 5 When using the probes keep your fingers behind the finger guards When making connections connect the common test lead before connecting the live test lead when disconnecting disconnect the live test lead before disconnecting the common test lead Before changing functions disconnect the test leads from the circuit under test For all DC functions including manual or auto ranging to avoid the risk of shock due to possible improper reading verify the presence of any AC voltages by first using the AC function Then select a DC voltage range equal to or greater than the AC range Disconnect circuit power and discharge all high voltage capacitors before testing resistance continuity diodes or capacitance Never perform resistance or continuity measurements on live circuits Before measuring current check the meter s fuse and turn off power to the circuit before connecting the
7. 10 MA ob DC rera 11 Es C F ds AE kMQHz 13 bes nym FAV UL i Figure 2 2 LCD Display The LCD screen is shown in Figure 2 2 above and the meanings of the symbols are explained in Table 1 below No Symbol Meaning 1 hm Indicates negative readings 2 AC Indicator for AC voltage or e current 13 3 DC Indicator for DC voltage or current The meter is in the Autorange 4 AUTO mode in which the meter automatically selects the range with the best resolution 5 NCV No contact AC Voltage detect The meter is in Data Hold 6 H mode 7 REL The meter is in Relative Measurement mode 8 MAX Display maximum data 9 MIN Display minimum data 10 EE Low battery indication 11 on The meter is in Continuity Check mode 12 gt The meter is in Diode Test mode C F KMQH 13 g Measurement units numFAV This symbol means that the 14 p L input is too large for the selected range Table 1 LCD Display Symbols 14 2 3 Keypad 2 3 1 SELECT Change to the second function 1 In the Q dFand m PF position Switches between Resistance measurement Diode Test and Continuity Check 2 In the A mA pA position Switches between DC and AC current 3 Power up Option Disables the automatic power off feature when pressed held down while turning the Meter on 2 3 2 HOLD BACKLIGHT PL Press to enter and exit the Data Hold mode To turn the b
8. Logic eM860T True RMS Multimeter User Manual Version 1 4 Revised 3 19 2015 2015 ennoLogic All rights reserved http ennologic com TABLE OF CONTENTS 1 GENERAL INSTRUCTIONS EE 1 1 1 Precautionary Safety Measures sesser 1 1 1 1 Preliminary oooconconcononnonncnncnncnnornconoornr corno corno cor cnnnoss 2 1 1 2 During USE seen 4 1 2 Battery Installation or Replacement seeers 7 E O 9 LA TASEFUGIONS aspas nitro cirrepiisas orais ii adrenal 9 2 INSTRUMENT DESCRIPTION ee 11 2 1 Main User Uements 11 EA iiaae aedini a 13 DS RO Va den E E 15 2 3 1 SELEC WE 15 2 3 2 HOLDIBACKLICHT o 15 KE 15 234 EE 16 DBD A 16 2 3 6 MAX MIN sra assenyalant sn a 16 3 FUNCTION DESCRIPTION eee 17 3 1 General FUNCIONS ir rrererererererererereeeeteasa 17 3 1 1 DATA HOLD mode ee 17 3 1 2 Manual ranging and Autorange mode 17 3 1 3 Battery Saver ceni enrere p a s 18 3 1 4 Relative Measurement Mode e 19 3 1 5 TRUE RMS Measurement sssssssessseissersrieeserrieese 19 3 2 Measurement Functtons EEN 20 3 2 1 AC and DC Voltage measurement 20 3 2 2 Resistance Measurement 23 3 2 3 Capacitance Measurement 26 3 2 4 Continuity Check ee 28 3 20 Diode Test ricota ii 31 3 2 6 Frequency and Duty Cycle Measurement 34 3 2 7 Temperature Measurement 35 3 2 8 Current Measurement e 36 3 2 9 NCV Non Contact Voltage Detect 38 4 TECHNICAL SPECIFICATIO
9. NS s sssssesenssisessresressesenet 39 4 1 General specifications 4 2 Measurement Specifications s es 40 LN lee 40 4 2 2 FTeQUENCY A 06080 k nee iieis 42 4 2 3 Resistance geet 42 4 2 4 Diode Testi 43 42 9 Continuity Check ornato 43 4 2 6 Capacitance sprosi 43 4 2 7 Temperaturen 44 ADS Current ih tec E EE OS 44 5 MAINTENANGE iii esca pa 45 5 1 General Maintenance icocncconnonnnnnnoninnnononicinnnarionncnaninnnos 46 5 2 Fuse replacement ENEE 46 6 ACCESSORIES ud Vasili 47 1 GENERAL INSTRUCTIONS This instrument complies with IEC 61010 1 2001 CAT III 1000V and CAT VI 600V overvoltage standards See Specifications To get the best service from this instrument read this user s manual carefully and respect the detailed safety precautions International symbols used on the Meter and in this manual are explained in chapter 1 2 1 1 Precautionary Safety Measures Important Note Limited Liability Cascadia Innovations is the exclusive distributor of all ennoLogic products Except as explicitly stated Cascadia Innovations is not liable for direct indirect incidental or other types of damages arising out of or resulting from the use of this product By using the eM860T you agree to hold ennoLogic and Cascadia Innovations harmless for any and all consequences of the use of this product or application of data from the use of this instrument 1 1 1 Preliminary As the possibilitie
10. acklight on and off press and hold for 2 seconds 2 3 3 RANGE At V V Q A mA and UA 1 Press RANGE to enter the manual ranging mode 15 2 Press RANGE to step through the ranges available for the selected function 3 Press and hold RANGE for 2 seconds to return to autoranging 2 3 4 RELA Press RELA to enter and exit the Relative measurement mode Except Hz Duty 2 3 5 Hz At V A mA and UA 1 Press once to start the frequency counter 2 Press again to enter duty load factor mode 3 Press a third time to exit the frequency counter mode 2 3 6 MAX MIN This key is for measuring maximum and minimum values 1 Press once to enter Max Min mode 2 Press again and the LCD will display the Maximum Value 3 Press a third time and the LCD will display the Minimum Value 16 4 Press and hold for two seconds and the meter will return to the normal measurement state Except Hz Duty and Capacitance 3 FUNCTION DESCRIPTION 3 1 General Functions 3 1 1 DATA HOLD mode Data Hold mode causes the meter to stop updating the display Enabling the Data Hold function in autorange mode switches the meter to Manual ranging mode but the full scale range remains the same The Data Hold function can be cancelled by changing the measurement mode pressing the RANGE key or pushing the LE key again To enter and exit Data Hold mode 1 Press the 92 key short press This freezes the display at the current v
11. alue H is displayed 2 A second short press returns the meter to normal mode 3 1 2 Manual ranging and Autorange mode The Meter has both manual ranging and autorange options 17 e In autorange mode the Meter selects the best range for the input detected This allows you to switch test points without having to reset the range e In manual ranging mode you select the range This allows you to override autorange and lock the meter into a specific range The Meter defaults to autorange mode in measurement functions that have more than one range When the Meter is in autorange mode AUTO is displayed To enter and exit manual ranging mode 1 Press the RANGE key The Meter enters manual ranging mode AUTO turns off Each press of the RANGE key increments the range When the highest range is reached the Meter wraps back to the lowest range NOTE If you manually change the measurement range after entering the Data Hold mode the Meter exits this mode 2 To exit the manual ranging mode press and hold down the RANGE key for two seconds The Meter returns to the autorange mode and AUTO is displayed 3 1 3 Battery Saver The Meter enters Sleep mode and blanks the display if the Meter is on but not used for 15 minutes 18 HOLD gt 04 Press the gt LL key or rotate the rotary switch to wake the meter up To disable Sleep mode hold down the SELECT key while turning the meter on 3 1 4 Relative
12. est Forward Bias 32 Reverse Bias Cathode t Anode il aT Te BS Mutter IN RANGE RELA He on sect Q M y Figure 3 5b Diode Test Reverse Bias 33 3 2 6 Frequency and Duty Cycle Measurement A Do not measure Frequency on high voltage gt 1000V circuits to avoid electrical shock hazard and or damage to the instrument The Meter can measure Frequency or Duty Cycle while making either an AC Voltage or AC Current measurement To measure Frequency or Duty Cycle 1 With the meter in the desired function AC Voltage or AC Current press the Hz key 2 Read the frequency of the AC signal on the display 3 To make a duty cycle measurement press the Hz key again 4 Read the percent of duty cycle on the display 5 Set the rotary switch to the Hz range 6 Insert the black and red test leads into the COM and Hz input terminals 7 Connect the test lead tips in parallel with the circuit to be measured And don t touch any electrical conductors 8 When in frequency measuring mode press Hz once to enter duty cycle measuring mode Press it again to return to frequency measuring mode 9 Read the measurement result on the display NOTE In a noisy environment it is recommended to use shielded cables for measuring small signals 34 3 2 7 Temperature Measurement A To avoid electrical shock and or damage to the instrument do not apply more than 250VDC o
13. ity at less than 80 Accuracy specifications take the form of of Reading Number of Least Significant Digits 4 2 1 Voltage DCV Range Resolution Accuracy 600mV 0 1mV 0 5 of rdg 5 digits 40 6V ImV 60V 10mV 0 8 of rdg 5 digits 600V 100mV 1000V 1V 1 0 of rdg 2 digits ACV Range Resolution Accuracy 600mV 0 1mV 6V ImV 1 0 of rdg 5 digits 60V 10mV 600V 100mV 750V 1V 1 5 of rdg 5 digits Above accuracies can be guaranteed within 5 100 of the full range The RMS meter has residual values within 10 counts when the test leads are shortened but that will not affect the accuracy of measurement 1 Frequency Range for ACV 40Hz 400Hz 2 Response for ACV RMS measure calibrated in rms of sine wave 3 Overload Protection 1000V DC or 1000V AC rms 4 Input Impedance Nominal DC voltage gt 10MQ AC voltage gt 10MQ 41 4 2 2 Frequency Logic frequency 1Hz 1MHz Range Resolution Accuracy 99 99 Hz 0 01 Hz 999 9Hz 0 1 Hz 9 999k Hz 0 001kHz 0 1 of rdg 3digits 99 99kHz 0 01kHz 999 9kHz 0 1kHz Linear frequency 6HZ 10KHZ Range Resolution Accuracy 99 99Hz 0 01 Hz 999 9Hz 0 1 Hz 0 05 of rdg 8digits 9 999kHz 0 001kHz Above accuracies can be guaranteed within 10 100 of the full range 4 2 3 Resistance Range Resoluti
14. measuring resistance e The measured value of a resistor in a circuit is often different from the resistor s rated value This is because the Meter s test current flows through all possible paths between the probe tips Inorder to ensure the best accuracy in measurements of low resistance short the test leads before measurement and note the test probe resistance Then subtract the test probe resistance from measured resistance e The resistance function can produce enough voltage to forward bias silicon diode or transistor junctions 23 causing them to conduct To avoid this do not use the 60MQ range for in circuit resistance measurements In the 60MQ range the meter s display may take a few seconds to stabilize This is normal for high resistance measurements When the input is not connected i e open circuit the symbol OL will be displayed to indicate over range condition 24 eMBGOT True RMS Multimeter enno ogic A mans pue AL Susto COM Figure 3 2 Measuring Resistance 25 3 2 3 Capacitance Measurement A To avoid electrical shock and or damage to the instrument disconnect circuit power and discharge all high voltage capacitors before measuring capacitance Use the DC voltage function to confirm that the capacitor is discharged The Meter s capacitance ranges are 6 000nF 60 00nF 600 0nF 6 000UF 60 00uF 600 0uF 6 000mF 60 00mF To measure capacitance set up the Meter as
15. on Accuracy 600 092 0 10 0 5 of rdg 3 digits 6 000kQ 192 60 00kQ 109 0 5 of rdg 2 digits 600 0kQ 1009 42 6 000M 2 1kQ 60 00MQ 10kQ 1 5 of rdg 5 digits 4 2 4 Diode Test Range Resolution Test Condition Forward Bias DC current iv 0 001V pay 1mA Reverse Bias DC voltage approximately 1 5V 4 2 5 Continuity Check Range Resolution Test Condition 6002 0 12 Open circuit voltage approx 0 5V Note Continuity beeper at lt 50Q 4 2 6 Capacitance Range Resolution Accuracy 6nF 1pF 5 0 of rdg 20 digits 60nF 10pF 3 0 of rdg 20 digits 600nF 100pF 6uF InF 5 0 of rdg 10 digits 60LF 10nF 600uF 100nF 6mF 1uF 5 0 of rdg 20 digits 4 2 7 Temperature Range Resolution Accuracy 200 0 C 5 0 of rdg 4 C 0 400 C 1 C 2 0 of rdg 3 C 400 1200 C 2 0 of rdg 2 C Note The temperature specifications do not include thermocouple errors 4 2 8 Current DCA Range Resolution Accuracy 6004 A O TUA 1 5 of rd digit Em gh 1 5 of rdg 3 digits 60mA 0 01mA E A ROOMA GTA 1 5 of rdg 3 digits 6A 1mA 1 5 of rdg 5 digits 10A 10mA ACA Range Resolution Accuracy GOQUA 0 14 A E E 1 8 of rdg 5 digits 6000U A 1pA 44 60mA 0 01mA 1 8 of rdg 5 digits
16. r 220VAC rms between the C terminal and the COM terminal To avoid electrical shock do not use this instrument when voltages at the measurement surface exceed 60VDC or 24V rms AC To avoid damage or burns Do not make temperature measurement in microwave ovens To measure temperature 1 Set the rotary switch to C and the LCD will show the current environment temperature 2 Insert K type thermocouple into the COM terminal and C terminal or you can insert it by using a Multi Function Socket taking care to observe the correct polarity 3 Touch the object to be measured with the thermocouple probe 4 Read the temperature on the LCD after values have stabilized 35 3 2 8 Current Measurement A To avoid damage to the Meter or injury if the fuse blows never attempt an in circuit current measurement where the open circuit potential to earth is greater than 1000V To avoid damage to the meter check the meter s fuse before proceeding Use the proper terminals function and range for your measurement Never place the probes in parallel with a circuit or component when the leads are plugged into the current terminals The Meter s current ranges are 600 0uA 60001A 60 00mA 600 0mA 6 000A and 10 00A To measure current set up the Meter as shown in Figure 3 6 ds Turn off power to the circuit Discharge all high voltage capacitors Set the rotary switch to the LA mA or A range
17. r opens and shorts of a circuit 28 on i close EM8B60T True RMS Multimeter EHHH RANGE E ha 9 MAX MN on u o M yz Figure 3 4a Checking Continuity Short 29 eMBSOTTrue RMS Multimeter on mmer RELA suer a A qe EF 4 vel or ennofogic A ven via m A A i ki RE rm gt Figure 3 4b Checking Continuity Open 30 3 2 5 Diode Test A To avoid electrical shock and or damage to the instrument disconnect circuit power and discharge all high voltage capacitors before testing diodes To test a diode outside of a circuit set up the Meter as shown in Figure 3 3 1 Set the rotary switch to my PF 2 Press the SELECT key to select Diode Test 3 Connect the black and red test leads to the COM and VQ terminals respectively 4 For forward bias readings on any semiconductor component place the red test lead on the component s anode and place the black test lead on the component s cathode 5 The meter will show the approximate forward voltage of the diode Inside a circuit a good diode Si should still produce a forward bias reading of 0 5V to 0 8V however the reverse bias reading can vary depending on the resistance of other pathways between the probe tips 31 Forward Bias Anode D Cathode El 0640 RANGE RELA He MAX MIN sl me D a ennoJogic wt a ES yig Al a ae AL ruso com Figure 3 5a Diode T
18. r to unscrew the two screws on the battery cover on the back of the unit near the bottom Remove the battery cover from the meter If you are replacing the battery remove the used battery Install a new 9V battery 6F22 Replace the battery cover and tighten the screws Attach protective rubber casing 8 1 3 Symbols Symbols used in this manual and on the instrument A preta 4 Mm m Caution refer to the instruction manual Incorrect use may result in damage to the device or its components AC Alternating Current DC Direct Current AC or DC Earth ground Double insulated Fuse Conforms to European Union directives 1 4 Instructions Remove test leads from the Meter before opening the Meter case or battery cover e When servicing the Meter use only specified replacement parts Before opening up the instrument always disconnect from all sources of electric current and make sure you are not charged with static electricity which may destroy internal components Any adjustment maintenance or repair work carried out on the meter while it is live should be carried out only by appropriately qualified personnel after having taken into account the instructions in this manual A qualified person is someone who is familiar with the installation construction and operation of the equipment and the hazards involved He is trained and authorized to energize and de energize circuit
19. s and equipment in accordance with established practices When the instrument is opened up remember that some internal capacitors can retain a dangerous potential even after the instrument is switched off If any faults or abnormalities are observed take the instrument out of service and ensure that it cannot be used until it has been checked out If the meter is not going to be used for a long time take out the battery and do not store the meter in high temperature or high humidity environments 10 2 INSTRUMENT DESCRIPTION 2 1 Main User Elements The front panel is shown in Figure 2 1 and its user elements are described below LCD display Used for displaying measurement results and various symbols 2 Keypad Measurement function keys 3 Rotary switch Used for selecting measurement functions V O kHz Connection terminal for the red test lead during voltage resistance capacitance frequency temperature diode and continuity measurements G uA ma Connection terminal for the red test lead during HA and mA measurements OA Connection terminal for the red test lead during 6A and 10A measurements COM Connection terminal for the black test lead common reference 11 lt eM860T True RMS Multimeter Nues El wiren besi K F d Wo npmFAV ennojogic A UA Sona max Via A kHz Al Re A FUSED COM ae pe Figure 2 1 Meter Front Panel 12 2 2 LCD Display O NCVHFE El En
20. s of high transient over voltages occurring in today s power systems increase more stringent safety standards are set for electrical test equipment Transients on electrical systems power grid feeder or branch circuits will trigger a series of incidents that may result in serious personal injury To protect you against transients safety must be built into the test equipment Overvoltage category In brief Examples CAT I Electronic e Protected electronic equipment Equipment connected to source circuits in which measures are taken to limit transient over voltages to an appropriately low level e Any high voltage low energy source derived from a high winding resistance transformer such as the high voltage section of a copier Single phase Appliance portable tools and other household and similar loads Outlet and long branch tacl circuits re a CAT II SAAST e Outlets at more than 10 connected meters 30 feet from CAT loads II source e Outlets at more that 20 meters 60 feet from CAT IV source e Equipment in fixed installations such as switchgear and polyphase motors incesto Bus ang feeder in A industrial plants distribution f e Feeders and short including de AE CAT HI branch circuits single phase AID A distribution panel devices commercial VARA k NE e Lighting systems in lighting larger buildings Appliance ou
21. shown in Figure 3 3 1 Set the rotary switch to Q AF 2 Press the SELECT key to select capacitance test 3 Connect the black and red test leads to the COM and Ak terminals respectively 4 Connect the test leads to the capacitor being measured and read the displayed value Some tips for measuring capacitance The meter s display may take a few seconds gt 30 seconds in 600 0uF range to stabilize This is normal for high capacitance measurements e To improve the accuracy of measurements less than 6nF subtract the residual capacitance of the Meter and leads Below 100pF the accuracy of measurements is unspecified 26 eMBGOT True AMS Multimeter 21004 Q RANGE RELA Ha MAX MIN ap mat mm Q my de D g TA EF ve ma or AN m _ iHz d EL co Figure 3 3 Measuring Capacitance 27 3 2 4 Continuity Check A To avoid electrical shock and or damage to the instrument disconnect circuit power and discharge all high voltage capacitors before testing for Continuity To test for continuity set up the Meter as shown in Figure 3 4 1 Set the rotary switch to ed PF 2 Connect the black and red test leads to the COM and 2 terminals respectively 3 Connect the test leads to the resistance in the circuit being measured 4 A resistance between test leads of less than 50Q is indicated by continuous beeping NOTE The Continuity test is commonly used to check fo
22. st detectable voltage is around 50V 50 60Hz The LCD will display EF when detecting the AC voltage signal The LCD display may indicate between one and four bars from weak to strong f 4 TECHNICAL SPECIFICATIONS 4 1 General specifications e Environmental conditions 1000V CAT III and 600V CAT Iv e Pollution degree 2 e Altitude lt 2000m e Operating temperature 0 40 C 32 F 122 F lt 80 RH lt 10 C non condensing Storage temperature 10 60 C 14 F 140 F lt 70 RH battery removed e Temperature Coefficient 0 1x specified accuracy C lt 18 C or gt 28 C e MAX Voltage between terminals and earth ground 1000V AC rms or 1000V DC e Fuse Protection LA and mA F 0 63A 1000V 10 3x38 A F 10A 1000V 10 3x38 Sample Rate 3 times sec for digital data 39 e Display 3 5 6 digits LCD display Automatic indication of functions and symbols e Range selection automatic and manual Over Range indication LCD will display OL e Low battery indication The is displayed when battery power is too low to guarantee proper operation e Polarity indication displayed automatically e Power source 9V e Battery type 6F22 e Dimensions 190 L x90 W x40 H mm e Weight 500g approx battery included 4 2 Measurement Specifications Accuracy is specified for one year after calibration at operating temperatures of 18 C to 28 C with relative humid
23. tlets with short connections to service entrance CAT VI Three phase at utility connection any outdoor conductors e Refers to the origin of installation i e where low voltage connection is made to utility power e Electricity meters primary overcurrent protection equipment e Outside and service entrance service drop from pole to building run between meter and panel e Overhead line to detached building underground line to well pump When using this Multimeter the user must observe all normal safety rules concerning e protection against the dangers of electric current protection of the Multimeter against misuse For your own safety only use the test probes supplied with the instrument Before use check that they are in good condition 1 1 2 During Use If the meter is used near noise generating equipment be aware that display may become unstable or indicate large errors Do not use the meter or test leads if they look damaged Use the meter only as specified in this manual otherwise the protection provided by the meter may be impaired Use extreme caution when working around bare conductors or bus bars Do not operate the meter around explosive gas vapor or dust Verify a Meter s operation by measuring a known voltage Do not use the Meter if it operates abnormally Protection may be impaired When in doubt have the Meter serviced Use the proper
24. uch as WD 40 Work the swab around in each terminal The oiling agent insulates the terminals from moisture related contamination 5 2 Fuse replacement A Before replacing the fuse disconnect test leads and or any connectors from any circuit under test To prevent damage or injury replace the fuse only with one of correct ratings 46 1 Set rotary switch to the OFF position 2 Disconnect test leads and or any connectors from the terminals 3 Use a screwdriver to unlock the four screws on the rear cover 4 Remove the rear cover from the meter 5 Remove the fuse by gently prying one end loose then slide the fuse out of its bracket 6 Only install replacement fuses with the following ratings F 0 63A 1000V 10 3x38 and F 10A 1000V 10 3x38 7 Replace the rear cover and tighten the screws 6 ACCESSORIES Package contents e Multimeter eM860T Test Leads black and red e K Type Thermocouple Probe s 9V Battery e Carrying Case User Manual 47 48 ennoLogic com PO Box 25207 enno Logic Eugene OR 97402
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