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1. 27 Users Manual e Remove test leads from the meter before e The use of makeshift fuses and the short opening the battery door circuiting of fuse holders is prohibited e Use only a properly installed single 9 V e To avoid false readings which could lead battery to power the meter to possible electric shock or personal injury replace the battery as soon as the e Follow all equipment safety procedures battery indicator appears e Check the meter s fuses see Testing the Fuses before measuring current International symbols used on the meter and in this manual are explained in Table 1 e Never touch the probe to a voltage source when the test leads are plugged into the 10 A or 40 mA input jacks Table 1 International Electrical Symbols O OFF power L GROUND SWITCH POSITION ON POWER A SEE EXPLANATION IN SWITCH POSITION MANUAL AC ALTERNATING n DOUBLE INSULATION e CURRENT Protection Class II DC DIRECT CURRENT EL FUSE me EITHER DC OR AC BATTERY Multimeter Safety Table 2 Input Terminals and Limits Input Terminals Max Display 10A continuous 20A overload for 30 seconds maximum Fuse protected Function Min Display Maximum Input Red Lead Black Lead Reading Roading V V va COM 0 001 V 1000 V 1000 V mV m var COM 0 1 mV 320 0 mV 1000 V o VA COM 0 10 3200MQ 1000 V nS VA COM 0 01 nS 32 00 nS 1000 V
2. Compatibility A Temperature Coefficient Battery Type iii RE need Battery Life 5t ee CERE ere Shock Vibration and Water Resistance 3200 counts updates 2 sec 31 Segments updates 25 sec 15 C to 55 C to 40 C for 20 minutes when taken from 20 C 55 C to 85 C 55 C to 60 C In an RF field of 3 V m on all ranges and functions except mVAC total accuracy specified accuracy 1 0 of range For mVAC total accuracy specified accuracy 1 5 of range EN 61326 1 1997 0 1X specified accuracy C lt 18 C or gt 28 C 0 to 95 0 C to 35 C 0 to 70 35 C to 55 C 9 V NEDA 1604 or 6F22 or 006P 1000 hrs typical Per MIL T 28800 for a Style A Class 2 Instrument 2 2 in X 3 75 in X 8 in 5 6 cm X 9 5 cm X 20 3 cm 1 6 pounds 0 75 kg 2000 m maximum Complies with ANSI ISA S82 01 1994 CAN CSA C22 2 No 1010 1 1992 1000 V Overvoltage Category Ill UL license pending to UL3111 1 25 27 Users Manual Test Equipment Depot 99 Washington Street Melrose MA 02176 6024 www testequipmentdepot com 800 517 8431 781 665 0780 FAX 26
3. Ur St vas mA 0 001 V 2 08 V 1000 V A COM 0 01 A 20 00A 11 A 1000 V Fast Fuse mia w n TA COM 0 01 mA 3200mA 44 100 A 1000 V Fast Fuse pA pA TA COM 0 1 uA 3200 uA 44 100 A 1000 V Fast Fuse 27 Users Manual Operating Features The following features are keyed by number to the illustration inside the front cover D Digital Display 3200 count liquid crystal display with automatic decimal point positioning Updated two times per second When the meter is first turned on all display segments appear while the instrument performs a brief power up self test 2 Function Selector Rotary Switch Turn to select any of 10 different functions or OFF Refer to the Specifications for available ranges and to Table 2 for input terminals and limits V Volts dc mV Millivolts dc V Volts ac mV Millivolts ac 0 Ohms resistance also conductance 1 0 in nanosiemens nS E Continuity or diode test m A Milliamps or amperes dc pA Microamps dc mA A Milliamps or amperes ac pA Microamps ac 3 VQ Volt Ohms Diode Test Input Terminal Input terminal used in conjunction with the volts mV ac or dc ohms or diode test position of the function selector rotary switch 4 COM Common Terminal Common or return terminal used for all measurements 6 a_ Milliamp Microamp Input Terminal Input terminal used for current measurements up to 320 mA ac or dc with the function selector rotary switch i
4. few percent of the final adjustment The bar graph can be used to make rough adjustments quickly then the 3200 count digital display can be used for final adjustment The analog bar graph is useful for performing limited diagnostics in applications were rapidly fluctuating signal levels cause the flashing digits of a digital display to be useless Like the traditional VOM needle the analog bar 11 27 Users Manual graph excels at displaying trends or slowly changing signals In addition autoranging on the Fluke 27 allows monitoring the signal change through changing ranges Many diagnostic routines using the bar graph require practice The operator is looking for good or bad signal patterns that occur over some span of time Capacitance checks and noisy resistance measurements create such patterns Therefore familiarity with analog bar graph response and movement is necessary to accurately interpret a signal pattern Compare the bar graph response when making measurements on a known good unit to the bar graph response when making measurements on a faulty unit Specific Applications Nulling The Fluke 27 bar graph is ideal for nulling adjustments As an adjustment approaches zero fewer bar graph segments are displayed then no bar graph segments are displayed The annunciator flickers when the input level is within 10 counts to zero The flickering null indication is displayed every time the input approaches zero or swings
5. from one polarity to the other The operator merely watches for the annunicator indication then reverses the direction of the adjustment when the polarity sign is displayed In one or two passes a near zero input level is possible then the digital display can be used for exact zero adjustment 12 Specific Applications Contact Bounce When subject to vibration relay contacts may begin to bounce open Checking for this intermittent problem is a routine troubleshooting measure associated with many types of equipment including computers Since the bounce problem will worsen as the relay fatigues early diagnosis is important When the contact bounces open its resistance value changes momentarily from zero to infinity and back Ordinary hand held DMMs take more than 300 milliseconds to update their displays much too long to detect a brief contact bounce A traditional VOM needle will move slightly at the instant of contact bounce but the inertia of the needle movement dampens the response The analog bar graph however will display at least one segment the moment the contact opens The bar graph can detect contact bounce as brief as 0 2 milliseconds while most analog needle movements require a 3 millisecond opening before they will respond Specific Applications Checking Capacitors Volt ohm meters are often used as simple capacitor checkers In the capacitor kick test the needle of the VOM in the resistance mode moves quick
6. hold for 2 seconds to exit Touch Hold mode If HOLD is depressed gt 1 second while the function switch is moved from OFF to any ON position the Touch Hold mode will only update to a new reading when the HOLD button is pressed and automatic Touch Hold updates are defeated This is useful when you want to take a reading at a specific time and hold it 49 MIN Minimum Annunciator Indicates that the meter is in the MIN MAX recording mode and the value displayed is the minimum digital reading taken since reset or since entering MIN MAX Refer to item 9 for operation 43 MAX Maximum Annunciator Indicates that the meter is in the MIN MAX recording mode and the value displayed is the maximum digital reading taken since reset or since entering MIN MAX Refer to item 9 for operation 43 A Relative Annunciator Indicates that the meter is in the Relative mode and that the value displayed is relative the difference between the present measurement and the previously stored reading Refer to item 8 for operation El Touch Hold Mode Annunciator Displayed when the Touch Hold mode is in use Refer to item 10 for operation 5 MKQ Resistance Annunciators The appropriate annunciator Q k or M is displayed for the resistance range in use nS Conductance Range Annunciator nS Top range of the resistance function is the conductance range Displays conductance in nS nanosiemens 1000 Operating Features nS converts to
7. 0 001 V 0 1 1 V 32 00 V 0 01 V 0 1951 320 0 V 0 1 V 0 1 1 1000 V 1V 0 1 1 mV 320 0 mV 0 1 mV 0 1 1 320 00 0 10 0 3 3 3 200 kO 0 001 kN 0 2 1 ie 32 00 kO 0 01 kQ 0 2 1 nS 320 0 kQ 0 1 KQ 0 296 1 3 200 MO 0 001 MO 0 2 1 32 00 MO 0 01 MO 1 1 32 00 nS 0 01 nS 2 10 ir St 2 080 V 0 001 V 1964 1 typical 40 Hz 2 kHz 2 kHz 10 kHz 10 kHz 30 kHz 3 200 V 0 001 V 0 5 3 2 3 4 10 V 32 00 V 0 01 V 0 59643 2 3 4 10 320 0 V 0 1V 0 5 3 2 3 4 10 1000 V 1V 1 3 3 3 Not Specified mV 320 0 mV 0 1 mV 0 5 3 2 3 4 10 When using the REL A function to compensate for offsets 22 Specifications Function Range Resolution Accuracy Typical Burden Voltage 32 00 mA 0 01 mA 0 75 2 5 6 mV mA mA A 320 0 mA 0 1 mA 0 75 2 5 6 mV mA 10 00 A 0 01A 0 75 2 50 mV A pA 320 0 yA 0 1 pA 0 75 2 0 5 mV IA 3200 A 1 yA 0 75 2 0 5 mV pA mA A 32 00 mA 0 01 mA 1 5 2 5 6 mV mA 40 1000 Hz 320 0 mA 0 1 mA 1 5 2 5 6 mV mA 10 00A 0 01A 1 5 2 50 mV A pA 320 0 uA 0 1 pA 1 59642 0 5 mV uA 40 1000 Hz 3200 uA 1pA 1 5 2 0 5 mV UA Accuracy is specified as of reading number of least significant digits Basic electrical accuracy is specified from 18 C to 28 C with relative humidity up to 95 for a period of one year after calibration All ac conversions are ac co
8. Test Equipment Depot 99 Washington Street Melrose MA 02176 6024 www testequipmentdepot com 800 517 8431 781 665 0780 FAX FLLIKE 27 Multimeter For IEC 61010 CAT III Meters Only 27 Users Manual LIMITED WARRANTY amp LIMITATION OF LIABILITY Each Fluke 20 70 80 170 and 180 Series DMM will be free from defects in material and workmanship for its lifetime As used herein lifetime is defined as seven years after Fluke discontinues manufacturing the product but the warranty period shall be at least ten years from the date of purchase This warranty does not cover fuses disposable batteries damage from neglect misuse contamination alteration accident or abnormal conditions of operation or handling including failures caused by use outside of the product s specifications or normal wear and tear of mechanical components This warranty covers the original purchaser only and is not transferable For ten years from the date of purchase this warranty also covers the LCD Thereafter for the lifetime of the DMM Fluke will replace the LCD for a fee based on then current component acquisition costs To establish original ownership and prove date of purchase please complete and return the registration card accompanying the product or register your product on http www fluke com Fluke will at its option repair at no charge replace or refund the purchase price of a defective product purchased through a Fluke authorized sales ou
9. ce section 15 27 Users Manual Battery Installation or Replacement A single 9V battery NEDA 1604 6F22 or 006P supplies power to operate the Fluke 27 Referring to Figure 1 use the following procedure to replace the Fluke 27 battery 1 Turn the rotary switch to OFF and remove the test leads 2 Liftthe instrument stand on the back of the Fluke 27 then remove the four black 46 X 32 Pozi drive amp screws from the battery cover 3 Pull the battery cover straight out from the back of the meter A coin slot in the side of the battery cover facilitates removal 16 Remove and disconnect the battery Snap the battery connector to the terminals on the new battery then slide the battery into the battery compartment Insert the battery spacer cover into the Fluke 27 then start the four screws removed in step 2 Press firmly on the battery cover while tightening the Screws in a diagonal pattern Operator Maintenance Battery cover Fuse cover Battery Battery connector yetf eps Figure 1 Battery and Fuse Replacement 17 27 Users Manual Fuse Test AWarnings To avoid possible electric shock or personal injury e Remove the test leads and any input signals before replacing battery or fuses e Before closing battery door make sure fuse cover is in place e Make sure the battery door is closed and latched before you operate the meter To prevent arc blast and resulting in
10. dditional segments are displayed from left to right to indicate the input level as it increases Now assume that the input level slowly decreases Fewer bar graph segments are displayed as the signal decreases then the annunicator flashes as the signal level passes through 0 As the signal goes more negative the annunciator is displayed from left to right indicating a more negative input signal The first segment is an indication greater than or equal to 20 counts Note that every fifth segment of the bar graph is slightly larger than those in between and every tenth segment is larger yet These larger segments provide a quick reference for bar graph indications The largest segments every 10th segment divide the display into thirds Thus if the bar graph indicates 11 segments on the 32 00V range the input voltage is 10 to 11 volts if the bar graph indicates 11 segments on the 320 0V range the input voltage is 100 to 110 volts If the input equals or exceeds 3000 counts on the range selected the bar graph displays an arrow at the far right of the display If the manual range annunciator is not displayed the Fluke 27 automatically switches to the next high range if the input exceeds approximately 3260 counts Using the Analog Bar Graph The analog bar graph is most useful in making adjustments and performing limited diagnostics Bar graph response is fast and precise so it can be used to easily reach a setting within a
11. e measurement is performed with the function selector switch in the ohms Q function The conductance range can only be entered using manual range selection autorange cannot enter the conductance range The conductance range can be used both to measure conductance 1 0 the inverse of resistance and to measure very high resistances greater than 32 megohms High value resistance measurements are susceptible to induced noise and may require careful shielding Conductance measurements are displayed in nanosiemens nS Calculate megohms by dividing 1000 by the nanosiemens displayed 1000 nS is equivalent to megohms Example 2 nS converts to 500 megohms 1000 2 Leakage Testing The conductance range effectively extends the resistance measurement capability of the Fluke 27 to the point where it can provide useful leakage measurements on passive components For example the operator can detect leaky diodes cables connectors printed circuit boards etc In all cases the test voltage is less than 2 V de 10 Leakage testing on purely resistive components such as cables and printed circuit boards is straightforward Select the ohms function and manually increment the range to conductance nS Connect the test leads to the test points nS Connect the test leads to the test points on the unit under test and read the leakage in terms of conductance Note There is normally a small residual reading with open test leads in the c
12. in the circuit Remember to place the meter in series with the current Use proper terminals function and range for your measurement To prevent arc blast and resulting injury install only the EXACT replacement fuse listed in the Maintenance section All current ranges are fuse protected Approximate terminal resistances for the current ranges are 0 1 ohms for A 5 6 ohms for mA and 500 ohms for yA The voltage developed across the terminal resistance is specified as burden voltage If a fuse opens refer to the fuse replacement procedures in the Operator Maintenance section of this manual Applications Resistance and Diode Test Continuity Caution To avoid possible damage to the meter or to the equipment under test disconnect circuit power and discharge all high voltage capacitors before measuring resistance testing for continuity or diode test Resistance Measurement Test lead resistance may influence measurement accuracy on the 320 ohm range To determine the error short the test leads together and read the lead resistance Correct the measurement by subtracting the lead resistance from the measurement or use the Relative REL mode to zero the display The error is usually 0 1 to 0 2 ohms for a standard pair of test leads Some in circuit resistance measurements can be made without removing diodes and transistors from the circuit The full scale measurement voltage produced on ranges below 32 megohms does not
13. jury install only the EXACT replacement fuse listed in Table 4 1 Turn the function selector switch to the Q position 2 Connect a test lead from the VA gt F input terminal to the A input terminal 3 The display should indicate between 0 1 ohm and 0 3 ohm This tests F2 11A 1000V fast 4 Move one end of the test lead from the A input terminal to the mA uA input terminal 18 The display should indicate between 5 3 ohms and 6 0 ohms This tests F1 44 100A 1000V fast If either of the above display indications is OL overload replace the appropriate fuse Fuse Replacement ANWarning To avoid personal injury do not use makeshift fuses or short circuit the fuse holders Referring to Figure 1 use the following procedure to check or replace the Fluke 27 fuses 1 Perform steps 1 through 4 of the battery replacement procedure Pull the fuse cover down then out of the meter Remove the defective fuse or check continuity through the suspected fuse and if necessary install a new fuse of the same size and rating Snap the fuse cover back into place Reinstall the battery spacer cover as instructed in step 6 of the battery replacement procedure Operator Maintenance Table 4 Replacement Fuses Item Description PN Qty F1 Fuse F44 100A 943121 1 A 1000 VAC DC F2 Fuse F11A 1000 803293 1 A VAC DC A To ensure safety use exact replacement only General Mainte
14. l nil nil 2 sec ext extended time nil no indication 14 Operator Maintenance Specific Applications Noisy Resistance Measurements Most digital multimeters are so sensitive they can not tolerate as much as 50 mV of the line noise while making resistance measurement their digital displays become unreadable due to the line noise On the other hand because of the mechanical inertia of the analog needle the noise alternately pulls the needle to the left and then to the right averaging out any movement and leaving a fairly stable resistance reading The Fluke 27 resistance measurement circuit is designed to tolerate ac noise far better than the usual DMM Readable 2 kilohm readings can be obtained even in the presence of 1 V ac noise Readings of 1 megohm may be obtained with up to 2 V ac noise The noise appears as about 50 counts of change and an oscillating bar graph Operator Maintenance A Warnings To avoid possible electric shock or personal injury e Do not allow water to get inside the case e Remove any input signals prior to removing test leads and opening case e When servicing the meter use only specified replacement parts e Before closing battery door make sure fuse cover is in place e Make sure the battery door is closed and latched before you operate the meter To prevent arc blast and resulting injury install only the EXACT replacement fuse listed in the Maintenan
15. ly from open infinite ohms toward short zero ohms as the capacitor is placed across the VOM input The VOM battery Analog Bar Graph Application charges the capacitor and the needle slowly moves back to the open infinite ohms position The higher resistance ranges offer increased sensitivity for checking smaller capacitors The analog bar graph can make similar checks in the resistance function even in the autoranging mode As a capacitor is placed across the inputs the analog bar graph quickly shortens then rapidly down ranges depending on the size of the capacitor As the capacitor charges the bar graph slowly extends back to its full 31 segment length up ranging if necessary For capacitors as small as 0 1uF only the 32 megohm range is involved In a fixed range using manual range mode the time it takes for the bar graph to extend from zero to full scale indicates the approximate capacitance value Table 3 gives typical capacitance values for various charge times on different resistance ranges For very small capacitors use the conductance nS mode 13 27 Users Manual Table 3 Capacitance Vs Time to Full Scale Capacitance Resistance Range Value 320 0 3 2k0 32k0 320 kQ 3 2 MO 32 MO 10 000 uF 4 sec 33 sec 5 min ext ext ext 1 000 uF nil 4 sec 30 sec ext ext ext 100 uF nil nil 3 sec 28 sec ext ext 10 uF nil nil nil 3 sec 25 sec ext 1 uF nil nil nil nil 2 sec 15 sec 0 1 uF nil nil ni
16. megohms Example 2 nS converts to 500 MO Use for measuring resistance above 32 megohms Select Q open test leads press RANGE button twice Refer to item 7 for manual range operation 47 Analog Bar Graph Display Analog representation of input Composed of 31 segments which illuminate starting from the left as the input increases See display inside rear cover A minus sign is displayed for reverse polarity inputs Updated 25 times per second Decimal Point Range Indicator Decimal point position and the digits 3 30 300 under the decimal point indicate the range in use amp Manual Range Annunciator Displayed in the Manual Range mode or if the selected function has only one range Absence of the indicator implies autorange mode in use The meter powers up in autorange In autorange the meter automatically selects the measurement range Refer to item 7 for operation Low Battery Annunciator Battery voltage is tested each time the function switch is moved to a new position A Warning To avoid false readings which could lead to possible electric shock or personal injury replace the battery as soon as the low battery indicator appears Negative Polarity Annunciator Automatically indicates negative input 2 Overload Indication These symbols indicate the input is too large for the input circuitry The location of the decimal point depends on the measurement range Overfl
17. n the mA or pA positions 6 A Amperes Input Terminal Input terminal used for current measurements up to 10A continuous 20 A overload for 30 seconds with the Operating Features function selector rotary switch in the mA A position ac or dc 7 RANGE Manual Range Mode Pushbutton Press once to enter manual range mode press again to increment range press and hold for 2 seconas to return to autorange Meter returns to autorange if the function selector is switched to any other position There is no autorange annunciator absence of the manual range annunciator indicates the meter is in autorange If RANGE is depressed 1 second while the function switch is moved from OFF to any ON position manual ranging will be selected in all functions REL A Relative Mode Pushbutton Press momentarily to enter the Relative mode and store the displayed reading The display will read zero Press again to update the stored digital reading Press and hold for 2 seconds to exit the Relative mode The Relative mode stores a digital reading and displays the change difference between the stored reading and any following reading For example if the stored reading is 15 00 V and the present readings is 14 10 V the display will indicate 0 90V The analog bar graph continues to display the actual reading 14 10V If the difference exceeds 3999 counts without overloading the input OF overflow is displayed The Relative mode select
18. nance Clean the case with a damp cloth and detergent do not use abrasives or solvents The Fluke 27 is sealed to protect the instrument To maintain proper sealing open only the battery fuse compartment Have the meter calibrated and the seals part number 738112 replaced by a qualified technician once a year to ensure specified performance Contact the nearest Fluke Service Center or refer to the Fluke 27 Service Manual part number 690206 for calibration or repair Refer to Table 5 for replaceable parts Table 5 Replaceable Parts Item Description PN Qty Battery 9V 696534 EN Screw PH 6 32 x 3 8 682070 4 Foot Case 654335 1 Bail Tilt Bracket 744474 1 Cover Battery 670585 1 O Ring Battery 697185 1 Spacer Battery 665023 1 Fuse Cover 665031 Test Lead Set 1 Allicator Clip Set 1 Users Manual 690203 1 Service Manual 690206 1 Accessory Number 19 27 Users Manual Figure 2 Replaceable Parts 20 AC70 4 y TL75 Test Lead Set Service Service To contact Fluke call one of the following telephone numbers USA 1 888 99 FLUKE 1 888 993 5853 Canada 1 800 36 FLUKE 1 800 363 5853 Europe 31 402 678 200 Japan 81 3 3434 0181 Singapore 65 738 5655 Anywhere in the world 1 425 356 5500 Or visit Fluke s Web site at www fluke com 21 27 Users Manual Specifications Function Range Resolution Accuracy 3 200 V
19. onductance range To ensure accurate measurements connect clean test leads to the Fluke 27 and with the leads open read the residual leakage in nanosiemens Correct subsequent measurements by subtracting the residual from the readings This can be done automatically using the Relative mode REL Diode leakage tests require that the diode junction be reverse biased when being measured This is accomplished by connecting the anode of the diode to the COMMON input terminal and the cathode ring of the diode to the volts ohms diode test terminal Leakage at the test voltage being applied can then be read in terms of conductance Analog Bar Graph Application High voltage stacked diode assemblies can usually be tested for forward and reverse resistance changes using conductance These assemblies typically have such high forward voltage drops that the diode test or resistance modes cannot test them Analog Bar Graph Application In looking at the analog bar graph notice that it is composed of segments that simulate an analog needle The bar graph performs the same function as an analog meter needle but it eliminates the mechanical overshoot inherent in needle movements A negative annunciator is displayed at the left end of the bar graph when taking a reverse polarity dc measurement Assume that a slowly varying dc voltage is the input signal As the input goes more positive from Zero a bar graph segment is displayed and a
20. ow Indication These symbols indicate the calculated difference in the Relative mode is too large to display 23999 counts and that the input is not overloaded 27 Users Manual Beeper not illustrated The beeper can produce beeps clicks or a continuous tone It is used for audible indication in the diode test mode when operating the push buttons and when a new reading is displayed in the Touch Hold mode Tilt Bail Adjustment To use the tilt bail as a handle lift the bail slightly about 1 inch or 2 5 cm pull the ends out and insert the ends in the alternate set of holes Applications Voltage AC DC All ranges present an input impedance of approximately 10 megohms in parallel with less than 100 pF Measurement errors due to circuit loading can result when making either ac or dc voltage measurements on circuits with high source resistance However in most cases the error is negligible 0 196 or less if the measurement circuit source resistance is 10 kilohms or less When measuring voltages above 320 V in Touch Hold mode use manual ranging to minimize readings of stray voltages 8 Current AC DC A Warning To avoid electric shock or personal injury e Never attempt an in circuit current measurement where the open circuited potential to earth is greater than 1000 V e Before measuring current check the meter s fuses see Testing the Fuses e Turn off circuit power before connecting the meter
21. provision 2 02 FLLIKE Table of Contents Multimeter Safety AAA Operating Features a aes HEURES api Poole HE MIC MAYO DOREM Current ACIDO gege b sse ege et SERGE eege SEA SSES Resistance and Diode Test Continuity essen Resistance Measurement eessieeeeesee seen nre nnne nnne nnne Diode Test and Continue GCONQUCIANCO ati aaa Leakage Testi ER Analog Bar Graph Application eene Using the Analog Bar Graphie Specific Applications Nulling ooonnccnnncnnnnininccnnnonnnccnnocannnccnn crac nnnnc rra Specific Applications Contact Bounce 27 Users Manual Specific Applications Checking Capacitors sssseseseresestresrtrnertrnerernnrrtnnnnnnnene Specific Applications Noisy Resistance Measurements Operator Maintenance cccescexececscteed scdevvecdeccdsecaueddyescheavesceeedevesccanteet Battery Installation or Replacement seem BUND Fuse Replacerient ies ien AD e ERAS e toa AER EE ACE REA General Maintenance SIMI T aves SPe CifiCationS no ncnnn cnn nan nn nrnnnn rn ninnnrnnnnnnnnnennes ii Multimeter Safety Multimeter Safety Read this information before using the meter This meter complies with EN 61010 1 1993 ANSI ISA S82 01 1994 and CAN CSR C22 2 No 1010 1 92 Overvoltage Category III Use the meter only as specified in this Users Manual otherwise the pro
22. s manual ranging changing ranges automatically exits the Relative mode 9 MIN MAX Mode Pushbutton Press momentarily to enter MIN MAX mode press again to toggle between MIN and MAX indications Press and hold for 2 seconds to exit MIN MAX mode The meter stores the minimum and maximum digital readings and will display either reading as selected by the operator Press the HOLD RESET button to reset the MIN MAX readings to the present input The MIN MAX mode selects manual ranging use a range that can record the maximum anticipated input Range changes reset previously recorded MIN MAX readings Exiting the MIN MAX mode does not reset the previously recorded readings unless the range or function is changed The MIN MAX mode overrides the Touch Hold mode A Warning To avoid electric shock or personal injury do not use Touch Hold to determine that circuits with dangerous voltages are de energized Touch Hold will not capture unstable or noisy readings 27 Users Manual HOLD DI Touch Hold Mode Pushbutton Press momentarily to enter Touch Hold mode In Touch Hold the meter captures a stable measurement and holds it in the display The operator can watch the probes while taking measurements in difficult or hazardous circuits then look at the display when convenient The meter beeps and the display is automatically updated each time a new stable measurement is made Press momentarily to manually update reading Press and
23. strongly forward bias silicon diodes or transistor junctions Use the highest range you can except 32 megohm to minimize the possibility of turning on diodes or transistor junctions Full scale measurement voltage in the 32 megohm range does strongly forward bias a diode or transistor Diode Test and Continuity In diode test there is only one range 0 to 2 08 volts Voltage is developed across the component s under test by a test current output from the Fluke 27 Voltages greater than 2 08 V or open test leads produce an overload OL condition Negative inputs produce a negative indication they are not suppressed In the diode test function Ui the beeper produces a continuous tone if the input is less than 0 1 V and the beeper beeps once when the input descends through a 0 7 V threshold Audible continuity testing is also performed with the function selector switch in the diode test continuity position A continuous tone sounds for test resistances below approximately 270 ohms An intermittent connection produces erratic beeps and can be valuable troubleshooting aid Erratic beeps can also occur due to environmental noise if a test value is very close to the threshold 270 ohms Test resistances from approximately 270 ohms to 2600 ohms produce a short tone similar to a forward biased diode Test resistances less than approximately 36 kilohms will produce an on scale reading 27 Users Manual Conductance Conductanc
24. tection provided by the meter may be impaired A Warning identifies conditions and actions that pose hazard s to the user A Caution identifies conditions and actions that may damage the meter or the equipment under test A Warnings To avoid possible electric shock or personal injury Inspect the meter before using it Check for cracks missing plastic or other possible damage to the case Make sure that the insulation surrounding the connectors is intact Inspect the test leads for damaged insulation exposed metal and continuity Replace damaged test leads before using the meter Do not use the meter if it operates abnormally Protection may be impaired When in doubt have the meter serviced Do not operate the meter around explosive gas vapor or dust Do not apply more than the rated voltage 1000 V between terminals or between any terminal and earth ground The rated voltage is marked on the meter Before each use verify the meter s operation by measuring a known voltage Use only specified replacement parts Use caution when working above 30 V ac rms 42 V ac peak or 60 V dc Such voltages pose a shock hazard When using the probes always place fingers behind the probe finger guards Connect the common test lead before connecting the live test lead When disconnecting test leads disconnect the live test lead first Make sure the battery door is closed and latched before operating the meter
25. tlet and at the applicable international price Fluke reserves the right to charge for importation costs of repair replacement parts if the product purchased in one country is sent for repair elsewhere If the product is defective contact your nearest Fluke authorized service center to obtain return authorization information then send the product to that service center with a description of the difficulty postage and insurance prepaid FOB Destination Fluke assumes no risk for damage in transit Fluke will pay return transportation for product repaired or replaced in warranty Before making any non warranty repair Fluke will estimate cost and obtain authorization then invoice you for repair and return transportation THIS WARRANTY IS YOUR ONLY REMEDY NO OTHER WARRANTIES SUCH AS FITNESS FOR A PARTICULAR PURPOSE ARE EXPRESSED OR IMPLIED FLUKE SHALL NOT BE LIABLE FOR ANY SPECIAL INDIRECT INCIDENTAL OR CONSEQUENTIAL DAMAGES OR LOSSES INCLUDING LOSS OF DATA ARISING FROM ANY CAUSE OR THEORY AUTHORIZED RESELLERS ARE NOT AUTHORIZED TO EXTEND ANY DIFFERENT WARRANTY ON FLUKE S BEHALF Since some states do not allow the exclusion or limitation of an implied warranty or of incidental or consequential damages this limitation of liability may not apply to you If any provision of this warranty is held invalid or unenforceable by a court or other decision maker of competent jurisdiction such holding will not affect the validity or enforceability of any other
26. upled average responding and calibrated to read the true rms value of a sine wave input Ranging is either automatic or manual in all functions with more than one range Test resistance below approximately 270 O in the Diode test function produces a continuous audible tone 23 27 Users Manual Function Overload Input Impedance Common Mode Rejection Ratio Normal Mode Rejection Protection Nominal 1 kO unbalance V 1000 V rms 10 MO in with lt 100 pF gt 120 dB at dc 50 Hz or 60 Hz gt 60 dB at 50 Hz or 60 Hz mV 1000 V rms 10 MO in with lt 100 pF gt 120 dB at dc 50 Hz or 60 Hz gt 60 dB at 50 Hz or 60 Hz vy 1000 V rms 10 MO in with lt 100 pF gt 60 dB dc to 60 Hz ac coupled mV 1000 V rms 10 MA in with lt 100 pF gt 60 dB dc to 60 Hz ac coupled Open Circuit Test Voltage Full Scale Voltage Q 1000 V rms Up to 3 2 MO 32 MO or nS lt 2 8 V de 420 mV dc 1 8 V dc 10 V Hz Max Terminal and Earth Ground 1000 V mA or uA A 24 Maximum Voltage Between Any Function Fuse Protection 44 100 A 1000 V Fast 11 A 1000 V FasT Specifications Digital Display A Analog Display none nee eee Operating Temperature oooocccooococcnoooccconocccncononcnnnananoninnnos Storage Temperature Without Battery eeeseeeseseeeeeeeneneeeennenee nnne With Battery e eb ur Electromagnetic

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