Fluke Welder 787 User's Manual
Contents
1. 4 7 0 4 37 787 Users Manual AC Current Measurement Range Resolution Accuracy of Reading Counts 45 Hz to 2 kHz 1 000A Note 0 001A 1 2 Typical Burden Voltage 1 5V A Note 440 mA continuous 1A 30 seconds maximum Specifications are valid from 5 to 100 of amplitude range AC conversion true rms Maximum crest factor 3 For non sinusoidal waveforms add 2 reading 2 f s typical Overload protection 440 mA 1000V fast blow fuse DC Current Measurement Range Resolution Accuracy of Reading Counts Typical Burden Voltage 30 000 mA 0 001 mA 0 05 2 14 mV mA 1 000A Note 0 001A 0 2 2 1 5V A Note 440 mA continuous 1A 30 seconds maximum Overload protection 440 mA 1000V fast blow fuse 38 ProcessMeter Specifications Ohms Measurement Range Resolution Measurement Current Accuracy of Reading Counts 400 0Q 0 12 220 uA 0 2 2 4 000 kQ 0 001 kQ 59 uA 0 2 1 40 00 kQ 0 01 KQ 5 9 uA 0 2 1 400 0 kQ 0 1 KQ 590 nA 0 2 1 4 000 MQ 0 001 MQ 220 nA 0 35 3 40 00 MQ 0 01 MQ 22 nA 2 5 3 Overload pipiecions 1000V Open circuit voltage lt 3 9V 39 787 Users Manual Accuracy of Reading Counts Frequency Counter Accuracy Range Resolution 199 99 Hz 0 01 Hz 0 005 1 1999 9 Hz 0 1 Hz 0 005 1 19 999 kHz 0 0012. 35 787 Users Manual Specifications All specifications apply from 18 C to 28 C unless stated otherwise All specifications assume a 5 minute warmup period DC Volts Measurement The standard specification interval is 1 year Note Counts means number of increments or decrements of the least significant digit Range V dc Resolution 4 000 0 001V 40 00 0 01V 400 0 0 1V 1000 1V Input impedance 10 MQ nominal lt 100 pF Normal mode rejection ratio gt 60 dB at 50 Hz or 60 Hz Common mode rejection ratio gt 120 dB at dc 50 Hz or 60 Hz Overvoltage protection 1000V 36 Accuracy of Reading Counts 0 1 1 0 1 1 0 1 1 0 1 1 ProcessMeter Specifications DC Millivolts Measurement AC conversion true rms Maximum crest factor 3 Specifications are valid from 5 to 100 of amplitude range For non sinusoidal waveforms add 2 reading 2 f s typical Input impedance 10 MQ nominal lt 100 pF ac coupled Common mode rejection ratio gt 60 dB at dc 50 Hz or 60 Hz Range mV dc Resolution Accuracy of Reading Counts 400 0 0 1 mV 0 1 1 AC Volts Measurement Range ac Resolution Accuracy of Reading Counts 50 Hz to 60 Hz 45 Hz to 200 Hz 200 Hz to 500 Hz 400 0 mV 0 1 mV 0 7 4 1 2 4 7 0 4 4 000V 0 001V 0 7 2 1 2 4 7 0 4 40 00V 0 01V 0 7 2 1 2 4 7 0 4 400 0V 0 1V 0 7 2 1 2 4 7 0 4 1000V 1V 0 7 2 1 2
3. Output Auto Ramping the MA Output eeeeeeeeeseeeeeeeeeceaeeeeeeeteaeeeeaeeseaeeeaeeseaeeesaeeseaeeeeates Power Up Options secstrievig seve hast est eel Hedin eee aie eevee Liat Battery Lites scnco e get sieecee te r aoao araa Using the Holster and Flex Stand MaimtenanG Enean pee O a aE EE E A EEEO E General Maintenance esis vsscecesedssencesescewss ices uee ea aaier siert e aaa APEE nen Calibrations tisena eiaeaen AAE E Eare A e E a Eeen ARE OE ESERE EREE Replacing the Battery c cc8 sec ati Ak ee ee lees Replacing a FUSE rnga na a pie aR E S E aare a If the Meter does not WOrk 1c cc5 cseeseavtistetidsescceseetal Ohad teedeavtsiediece a aetditladabestenceeas Replacement Parts and Accessories Specifications sek inc eeiinilatedein enna RRR ene eee Index il Introduction A Warning Read Safety Information before you use the meter Your Fluke 787 ProcessMeter referred to as the meter is a handheld battery operated tool for measuring electrical parameters and supplying steady or ramping current to test process instruments It has all the features of a digital multimeter plus current output capability Your meter is shipped with a Flex Stand holster one set of TL75 test leads one set of AC70A Alligator Clips this manual and a laminated Quick Reference Card that fits inside the holster If the meter is damaged or something is missing contact the place of purchase immediately ProcessMeter Co
4. Replacement parts and some accessories are shown in Figure 12 and listed in Table 13 Many more DMM accessories are available from Fluke For a catalog contact your nearest Fluke distributor To find out how to order parts or accessories use the telephone numbers or addresses shown on page 1 of this manual 33 787 Users Manual Table 13 Replacement Parts 34 Item Description Fluke PN or Model no Quantity BT1 9V battery ANSI NEDA 1604A or IEC 6LR61 614487 1 CG81Y Holster Yellow CG81G 1 A Fi 2 Fuse 440 mA 1000V fast blow 943121 2 MP85 Case top 619962 1 MP86 Case bottom 619939 1 H2 3 4 Case screw 832246 3 MP89 90 Non skid foot 824466 2 MP8 O ring for input output receptacle 831933 1 MP92 Battery door 619947 1 H5 6 Battery door fasteners 948609 2 S1 Keypad 646932 1 TL75 Standard test lead set TL75 1 AC70A Alligator clips for use with TL75 test lead set AC70A 1 TL20 Industrial test lead set TL20 Option TM1 Product Overview Manual 1586717 1 TM2 Users Manual CD ROM 1586721 1 TM3 Calibration Manual not shown 641891 Option ProcessMeter Replacement Parts and Accessories TL20 Option Industrial Test Lead Set AC70A Q Alligator Clips Na SI Holster CG81Y Product Overview Manual BT1 gece Meet CD ROM Users Manual a MP92 TL75 Test Lead Set Figure 12 Replacement Parts ee015c eps
5. for test lead resistance 19 Composite Signals 17 43 787 Users Manual Flex Stand 28 Freezing a reading TouchHold 19 Fuse checking and replacing 31 H Holster 28 Input Output jacks 7 J Jacks 7 K Knob positions Bi L Loop supply external 22 44 mA output See Current output Mailing address for Fluke Maintenance Malfunction Measuring MIN MAX recording 18 O Offset programming an 19 Options power up Output See Current output p Parts replacement Power up options Pushbuttons Index continued Ranges Relative reading 19 Rotary switch positions blial S Safety information 2 Screen 15 Service and sales Settings 27 Simulating See Current output Sourcing See Current output Specifications Switch positions 9 Symbols international 4 Telephone numbers TouchHold 19 W Warranty See back of Title Page Service 82 WWW address for Fluke 2 45 787 Users Manual 46
6. pushbutton meter beeps to acknowledge the power up option Table 11 Power Up Options Option Pushbutton Default Action Taken Change current span 0 setting Remembers Toggles between 0 and 4 mA last setting Disable beeper Enabled Disables beeper Disable auto power off BLUE Enabled Disables the feature that turns off the meter power after 30 minutes of inactivity Auto power off is disabled regardless of this option if MIN MAX recording is on 27 787 Users Manual Battery Life A Warning To avoid false readings which could lead to possible electric shock or personal injury replace the battery as soon as the battery indicator 3 appears Table 12 shows typical alkaline battery life To preserve battery life e Use current simulation instead of sourcing when possible e Avoid using the backlight e Do not disable the automatic power off feature e Turn the meter off when you are not using it Table 12 Typical Alkaline Battery Life MeterOperaton Hours Measuring any parameter or simulating 80 __ current Sourcing 12 mA into 5009 12 28 Using the Holster and Flex Stand The meter is supplied with a snap on holster that absorbs shocks and protects the meter from rough handling You can turn the meter over in the holster to protect the face of the meter from scratches when carrying the meter The holster is equipped with a Flex Stand bail Some uses of the hols
7. to take measurements in situations in which it is difficult to look at the display The meter beeps and updates the display with each new stable reading Compensating for Test Lead Resistance Use the relative reading feature A on the display to set the present measurement as a relative zero A common use for this is to compensate for test lead resistance when measuring Q Select the Q measure function touch the test leads together then press RELA Until you press again or switch to another measurement or source function the readings on the display will subtract the lead resistance 19 787 Users Manual Using the Current Output Functions The meter provides steady stepped and ramped current output for testing 0 20 mA and 4 20 mA current loops You can choose source mode in which the meter supplies the current or simulate mode in which the meter regulates current in an externally powered current loop Source Mode Source mode is selected automatically by inserting the test leads into the SOURCE and jacks as shown in Figure 7 Use source mode whenever you need to supply 20 current into a passive circuit such as a current loop with no loop supply Source mode depletes the battery faster than simulate mode so use simulate mode whenever possible The display looks the same in source and simulate modes The way to tell which mode is in use is to see which pair of output jacks is in use ProcessMeter
8. w Adjusts output up or down to the next 25 step gt mA Seo mA COARSE or W Adjusts output up or down 0 1 mA Test leads in FINE or w Adjusts output up or down 0 001 mA SIMULATE Sink 0 mA OUTPUT Test leads in BLUE cycles through mA Sie esa e Fast repeating 0 100 0 ramp M on display AME 0 100 0 slow ramp Test leads in SIMULATE Sink repeating 0 100 0 slow ramp e Repeating 0 100 0 ramp in 25 steps I on display e Slow repeating 0 100 0 ramp on display 11 787 Users Manual STEP COARSE FINE Ca na Ce so 3 Roa ee003f eps Figure 5 Pushbuttons Table 5 Pushbuttons 12 No Pushbutton Function s Toggles the backlight CD Rotary switch in mA A position and test lead plugged into A jack Toggles BLUE between ac and dc ampere measure Rotary switch in 1 Q position Selects diode test function Rotary switch in OUTPUT mA position Cycles through e Slow repeating 0 100 0 ramp on display e Fast repeating 0 100 0 ramp MA on display e Repeating 0 100 0 ramp in 25 steps on display ProcessMeter Getting Acquainted with the Meter Table 5 Pushbuttons cont No Pushbutton Function s a Measuring Selects a MIN MAX or AVG action see pg 18 mA Output Adjusts mA output up to the next higher 25 step STEP a Measuring Selects
9. A Adjusts down 0 001 mA Adjusts down 0 1 mA ProcessMeter Using the Current Output Functions Manually Stepping the mA Output When the rotary switch is in the OUTPUT mA position and the OUTPUT jacks are connected to an appropriate load the meter produces a steady mA dc output The meter begins sourcing or simulating 0 Use the pushbuttons to step the current up and down in 25 steps as shown in Table 9 See Table 10 for mA values at each 25 step Select either sourcing or simulating by choosing the SOURCE or SIMULATE output jacks If the meter cannot deliver the programmed current because the load resistance is too high or the loop supply voltage is too low dashes appear on the numeric display When the impedance between the SOURCE jacks is low enough the meter will resume sourcing Note The COARSE and FINE adjustment pushbuttons described on the previous page are available when you are manually stepping the mA output Table 9 mA Stepping Pushbuttons Pushbutton Adjustment gt Adjusts up to the next higher 25 step STEP STEP Adjusts down to the next lower 25 step v 25 787 Users Manual Table 10 mA Step Values Step Value for each span setting 4to20mA Oto20mA 0 4 000 mA 0 000 mA 25 8 000 mA 5 000 mA 50 12 000 mA 10 000 mA 75 16 000 mA 15 000 mA 100 20 000 mA 20 000 mA 125 24 000 mA 120 24 000 mA Auto Ra
10. FLUKE 187 ProcessMeter Users Manual April 1997 Rev 3 12 01 1997 1898 2000 2001 Fluke Corporation All rights reserved Printed in U S A All product names are trademarks of their respective companies LIMITED WARRANTY amp LIMITATION OF LIABILITY This Fluke product will be free from defects in material and workmanship for three years from the date of purchase This warranty does not cover disposable batteries or damage from accident neglect misuse or abnormal conditions of operation or handling Resellers are not authorized to extend any other warranty on Fluke s behalf To obtain service during the war ranty period send your defective meter to the nearest Fluke Authorized Service Center with a description of the problem THIS WARRANTY IS YOUR ONLY REMEDY NO OTHER WARRANTIES SUCH AS FITNESS FOR A PARTICULAR PURPOSE ARE EXPRESSED OR IMPLIED FLUKE IS NOT LIABLE FOR ANY SPECIAL INDIRECT INCIDENTAL OR CONSEQUENTIAL DAMAGES OR LOSSES ARISING FROM ANY CAUSE OR THEORY Since some states or countries do not allow the exclusion or limitation of an implied warranty or of incidental or consequen tial damages this limitation of liability may not apply to you Fluke Corporation Fluke Europe B V P O Box 9090 P O Box 1186 Everett WA 5602 B D Eindhoven 98206 9090 USA The Netherlands Table of Contents Title Page INTODUCTION iss Betis itty ein HA Gat cai cides iia Si ee E TEE E T Contacting FlUKG riiston enese nnne
11. Using the Current Output Functions a a a C nmax ranae Hoow OUTPUT 0 24mA SOURCE SIMULATE ee010f eps Figure 7 Sourcing Current 21 787 Users Manual Simulate Mode Simulate mode is so named because the meter simulates a current loop transmitter Use simulate mode when an external dc voltage of 24 to 30V is in series with the current loop under test Caution Set the rotary switch to one of the mA output settings BEFORE you connect the test leads to a current loop Otherwise a low impedance from the other rotary switch positions could be presented to the loop causing up to 50 mA to flow in the loop Simulate mode is selected automatically by inserting the test leads into the SIMULATE and jacks as shown in Figure 8 Simulate mode conserves battery life so use it instead of source mode whenever possible The display looks the same in source and simulate modes The way to tell which mode is in use is to see which pair of output jacks is in use 22 Changing the Current Span The meter s current output span has two settings with overrange to 24 mA e 4mA 0 20 mA 100 factory default e OmA 0 20 mA 100 To find out which span is selected short the OUTPUT SOURCE and jacks turn the rotary switch to OUTPUT mA and observe the 0 output level To toggle and save the current output span in nonvolatile memory
12. a fixed range hold for 1 second for auto range mA Output Adjusts output up 0 1 mA COARSE a Measuring Toggles TouchHold or in MIN MAX recording suspends recording mA Output Adjusts output up 0 001 mA FINE FINE Measuring Toggles between frequency counter and ac voltage measurement functions mA Output Adjusts output down 0 001 mA v COARSE Measuring Toggles relative reading sets a relative zero point mA Output Adjusts output down 0 1 mA v STEP Measuring Toggles between Q measure and continuity functions mA Output Adjusts mA output down to the next lower 25 step v 13 787 Users Manual Fp UK E 7 87 PROCESSMEW R AN MINMAXAVG EEJ MOO Coie aX lt gt ae a lt gt ELLI east ers eed eel ren DC mV ac MkQ Z output BBE QM covio000 i Figure 6 Elements of the Display ee004f eps ProcessMeter Getting Acquainted with the Meter Table 6 Display zZ oaaae Element Percentage display OUTPUT gt 1 A Numerals OH MINMAXAVGEEJ Meaning Shows the mA measured value or output level in in a 0 20 mA or 4 20 mA scale change scales with power up option Lights when mA output source or simulate is active Lights in diode test function Lights in continuity function Lights when relative reading is on Lights when the battery is low Show the input or output value Lights when TouchHold i
13. arne T E aa a aai E Tar Safety Information 0 ce ceececeeeeeeeeeeeneeeeeeeceeeeeeeeseaeeeseeeseaeeseeeseeeeeeeeseeeesieeeseeeeeneeeneeeeea How to Get Started a ceeeeeceescceeeeesseeeeeaeesseeeeeaeeceanessaceseaaessaeessaeessaeeseagessaeeseaeessaeeees Getting Acquainted with the Meter cccccesceeeeeseeeeeeeeeceeeeeeeeseaeeeeaeeseaeeseaeeseaeeseaeene Measuring Electrical Parameters cceeescceeeeseeeeseneeeeeeeeeetesaeeeeeenaeeeeseaeeeeeenneeerenaeeees Input impedantsi ninini naaa E EA NEOA AEG FRANG GS E E E E A E S E Measuring a Composite Signal cccceecceseceeeseeeeeeeeeeeeeseeeeeneeeseeeeeseeeseaeeenaeeseaeeenaees Testing DIODES s cccicsssehisscaeeunscecennnscceaseaccegestheedsksuseasecnteeahaeeasnndussissaciieengesciseassanesetsd Displaying Minimum Maximum and Average Using TOUCKIAOIG sain cicici ceases seeladcaerescscniiessdesssbnncegsuscecedhaneadi aden aa E E AAE REE EATER Compensating for Test Lead ReSistance eccceeeceeeseeeeeeeeeneeeeeeeteneeeeneeseteeeeeeeenes Using the Current Output FUNCTIONS cece cence eeeeeeeeeeeeeeeeeeeeeeaeeeeeeesaeeeseeessaeeeeeeenaas oTe AN eLo l AAE EE E EE spike ceed ae E 787 Users Manual SI MUMALS MOMS ies seceessveectesscteesessszewe sacrecevane satyaceacapusee EEA EEE AEE ESE EEEE ERRE Changing the Current Span aeiieoo ae ia oraes Producing a Steady MA OUtQUL ecceeeeeeeeeeeseneeeeeeeseneeeeaeeteneeseaeeseaeeseaeeteeeseaeetaes Manually Stepping the mA
14. ations as follows For DC Millivolts Measrement add 0 03 of range For AC Volts Measurement add 0 37 of range For DC Current Measurement 30 000 mA range add 0 14 or range For DC Current Output add 0 02 of span Accuracy for all meter functions is not specified in RF fields gt 3V m Relative humidity 95 up to 30 C 75 up to 40 C 45 up to 50 C and 35 up to 55 C 41 787 Users Manual Vibration Random 2g 5 to 500 Hz Shock 1 meter drop test Waiter and dust protection Complies with IEC529 IP52 normal operating vacuum used for dust test Safety Complies with IEC1010 1 ANSI ISA S82 01 1994 and CAN CSA C22 2 No 1010 1 92 Overvoltage Category III Certifications CSA UL TUV Power requirements Single 9V battery ANSI NEDA 1604A or IEC 6LR61 Size 32 mm H x 87 mm W x 187 mm L 1 25 in H x 3 41 in W x 7 35 in L With holster and Flex Stand 52 mm H x 98 mm W x 201 mm L 2 06 in H x 3 86 in W x 7 93 in L Weight 369 g 13 02 With holster and Flex Stand 638 g 22 5 oz 42 Index Current output AS Compliance Load impedance Auto Ramping auto Ramping Simulating a transmitter 22 Ranging Sourcing 20 Stepping Span 4 20 mA or 0 20 mA 22 Steady 24 A R Stepping auto 26 B Stepping manually 25 Battery With external loop supply 22 Replacement Buttons 12 D C Diodes testing 18 Display 15 Calibrating the meter 28 Compensating
15. e blown fuse with the exact type specified 440 mA 1000V fast blow fuse Fluke PN 943121 Both fuses are the same type Make sure the rotary switch is in the OFF position Fit the top of case together engaging the two snaps item Make sure that the gasket is properly seated Close the case and reinstall the three screws Replace the battery door 31 787 Users Manual If the Meter does not Work e Examine the case for physical damage If there is damage make no further attempt to use the meter and contact a Fluke Service Center e Check the battery fuses and test leads e Review this manual to make sure you are using the correct jacks and rotary switch position If the meter still does not work contact a Fluke Service Center If the meter is under warranty it will be repaired or replaced at Fluke s option and returned at no charge See the Warranty on the back of the title page for terms If the warranty has lapsed the meter will be repaired and returned for a fixed fee Contact a Fluke Service Center for information and price ee012f eps Figure 11 Replacing a Fuse 32 ProcessMeter Replacement Parts and Accessories Replacement Parts and Accessories A Warning To avoid personal injury or damage to the meter use only the specified replacement fuse 440 mA 1000V fast blow Fluke PN 943121 Note When servicing the meter use only the replacement parts specified here
16. in the right range is important e If the range is too low the display shows OL overload e If the range is too high the meter will not be displaying its most accurate measurement The meter normally automatically selects the lowest range that will measure the applied input signal Auto showing on the display Press if you want to lock the range Each time you press the meter selects the next higher range If you have locked the range the meter resumes auto ranging when you change to another measurement function or you press and hold it for 1 second Measuring a Composite Signal Because the input is dc coupled to meaure an ac voltage or frequency with a dc bias you must manually select the range specified in Table 7 For example to measure 100 mV ac with 20 V dc superimposed select the 4 V range Table 7 Range Requirements for Measuring a Composite Signal Range ac Max Allowable AC DC 400 0 mV 3V 4 000 V 30 V 40 00 V 300 V 400 0 V 400 V 1000 V 1000 V 17 787 Users Manual Testing Diodes To test a single diode 1 Insert the red test lead into the V OQ gt jack and black test lead into the COM jack 2 Set the rotary switch to m Q 3 Press the BLUE pushbutton so that the gt symbol is on the display 4 Touch the red probe to the anode and the black probe to the cathode side with band or bands The meter should indicate the appropriate diode voltage drop 5 Reve
17. insulation surrounding the connectors ProcessMeter Safety Information Make sure the battery door is closed and latched before you operate the meter Remove test leads from the meter before you open the battery door Inspect the test leads for damaged insulation or exposed metal Check test leads continuity Replace damaged test leads before you use 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 Use only a single 9V battery properly installed in the meter case to power the meter When servicing the meter use only specified replacement parts Caution To avoid possible damage to meter or to equipment under test Disconnect the power and discharge all high voltage capacitors before testing resistance or continuity Use the proper jacks function and range for your measurement or sourcing application To protect yourself adhere to the following guidelines e Use caution when working above 30V ac rms 42V ac pk or 60V dc Such voltages pose a shock hazard e When using the probes keep your fingers behind the finger guards on the probes e Connect the common test lead before you connect the live test lead When you disconnect test leads disconnect the live test lead first 787 Users Manual Table 1 International Symbols Symbol Meaning Alte
18. kHz 0 005 1 Display updates 3 times second at gt 10 Hz Minimum Sensitivity rms Sinewave Frequency Counter Sensitivity Input Range 5 Hz to 5 kHz 1V 0 1 V 4V 1V 40 V 3V 400 V 30 V 1000 V 300 V gt Usable 0 5 Hz to 20 kHz with reduced Sensitivity 40 ProcessMeter Specifications Diode Test and Continuity Test Diode test indication display voltage drop 0 2 mA nominal test current at 0 6V 2 4V full scale accuracy 2 1 count Continuity test indication continuous audible tone for test resistance lt 100Q Open circuit voltage lt 3 9V Short circuit current 1 2 mA typical Overload protection 1000V rms DC Current Output Source mode Span 0 mA or 4 mA to 20 mA with overrange to 24 mA Accuracy 0 05 of span Compliance voltage 12V with battery voltage gt 8 5V Simulate Mode Span 0 mA or 4 mA to 20 mA with overrange to 24 mA Accuracy 0 05 of span Loop voltage 24V nominal 30V maximum 15V minimum Compliance voltage 21V for 24V supply Burden voltage lt 3V General Specifications Maximum voltage applied between any jack and earth ground 1000V Storage temperature 40 C to 60 C Operating temperature 20 C to 55 C Operating altitude 2000 meters maximum Temperature coefficient 0 05 x specified accuracy per C for temperatures lt 18 C or gt 28 C Accuracy adders for use in RF Fields In an RF field of 3V m change the accuracy specific
19. mping the mA Output Auto ramping gives you the ability to continuously apply a varying current stimulus from the meter to a transmitter while your hands remain free to test the response of the transmitter Select either sourcing or simulating by choosing the SOURCE or SIMULATE jacks 26 When the rotary switch is in the OUTPUT mA position the meter produces a continuously repeating 0 100 0 ramp in your choice of three ramp waveforms VAN 0 100 0 40 second smooth ramp default M 0 100 0 15 second smooth ramp 0 100 0 Stair step ramp in 25 steps pausing 5 seconds at each step Steps are listed in Table 10 The ramp times are not adjustable Press the BLUE pushbutton to cycle through the three waveforms Note At any time during auto ramping you can freeze the ramp simply by moving the rotary switch to the amp mA position Then you can use the COARSE FINE and STEP adjust pushbuttons to make adjustments ProcessMeter Power Up Options Power Up Options Only the setting for current span is retained when the power is turned off The others have to be repeated for To select a power up option hold down the pushbutton each operating session shown in Table 11 while turning the rotary switch from OFF to any on position Wait 2 seconds before you You may activate more than one power up option by release the pushbutton after powering up the meter The holding down more than one
20. ntact your Fluke distributor for information about DMM accessories To order replacement parts or spares see Table 13 near the end of this manual Contacting Fluke To order accessories receive operating assistance or get the location of the nearest Fluke distributor or Service Center call 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 1 425 446 5500 787 Users Manual Address correspondence to Fluke Corporation Fluke Europe B V P O Box 9090 P O Box 1186 Everett WA 98206 9090 5602 BD Eindhoven USA The Netherlands Or visit us on the World Wide Web www fluke com Safety Information The meter complies with IEC 1010 1 ANSI ISA S82 01 1994 and CAN CSA C22 2 No 1010 1 92 Overvoltage Category III Use the meter only as specified in this manual otherwise the protection 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 International symbols used on the meter and in this manual are explained in Table 1 AWarning To avoid possible electric shock or personal injury e Do not use the meter if it is damaged Before you use the meter inspect the case Look for cracks or missing plastic Pay particular attention to the
21. retained when the power is turned off 1 Turn off the meter 2 Hold down the pushbutton while you turn the rotary switch to OUTPUT mA 3 Wait at least 2 seconds then release RANGE ProcessMeter Using the Current Output Functions dc V Power Supply COM 24V a a T STEP COARSE OUTPUT 0 24mA_ SOURCE SIMULATE EP eae a mA ee011f eps Figure 8 Simulating a Transmitter 23 787 Users Manual Producing a Steady mA Output When the rotary switch is in the OUTPUT mA position and the OUTPUT jacks are connected to an appropriate load the meter produces a steady mA dc output The meter begins sourcing or simulating 0 Use the pushbuttons to adjust the current as shown in Table 8 Select either sourcing or simulating by choosing the SOURCE or SIMULATE output jacks If the meter cannot deliver the programmed current because the load resistance is too high or the loop supply voltage is too low dashes appear on the numeric display When the impedance between the SOURCE jacks is low enough the meter will resume sourcing Note The STEP pushbuttons described on the next page are available when the meter is producing a steady mA output The STEP pushbuttons go to the next multiple of 25 24 Table 8 mA Output Adjust Pushbuttons Pushbutton Adjustment Adjusts up 0 1 mA Adjusts up 0 001 m
22. rnating current Direct current Alternating or direct current Symbol Meaning Earth ground Fuse Conforms to European Union directives Refer to the manual for information about this feature Conforms to relevant Canadian Standards Association directives A Battery Double insulated CAT Ill Meets Underwriters Laboratories safety requirements Inspected and licensed by TUV Product Services Overvoltage Installation Category III Pollution Degree 2 per IEC 1010 1 refers to the level of Impulse Withstand Voltage protection provided Typical locations include Mains wall outlets main distribution levels connected closer to the supply system but less than the primary supply system CAT IV ProcessMeter How to Get Started How to Get Started If you are familiar with the Fluke 80 Series DMM read Using the Current Output Functions review the tables and figures in Getting Acquainted with the Meter and begin using your meter If you are unfamiliar with Fluke 80 Series DMMs or DMMs in general read Measuring Electrical Parameters in addition to the sections referenced in the previous paragraph The sections following Using the Current Output Functions contain information about the power up options and battery and fuse replacement instructions Later use the Quick Reference Card to refresh your memory about the various functions and features
23. rse the probes The meter should display OL indicating a high impedance 6 The diode is good if it passes the tests in steps 4 and 5 18 Displaying Minimum Maximum and Average MIN MAX recording stores the lowest and highest measurements and maintains the average of all measurements Press to turn on MIN MAX recording Readings are stored until you turn the meter off switch to another measurement or source function or turn MIN MAX off The beeper sounds when a new maximum or minimum is recorded Auto power off is disabled and auto ranging is turned off during MIN MAX recording Press again to cycle through the MAX MIN and AVG displays Press and hold for 1 second to erase stored measurements and exit If MIN MAX recording is on continuously for over 40 hours minimum and maximum readings are still recorded but the displayed average no longer changes In MIN MAX recording press to suspend recording press again to resume recording ProcessMeter Measuring Electrical Parameters Using TouchHold Note You must have MIN MAX recording off to use TouchHold A Warning To avoid possible electric shock do not use TouchHold to determine if dangerous voltage is present TouchHold will not capture unstable or noisy readings Activate TouchHold if you want the meter to freeze the display on each new stable reading except in the frequency counter function Press to activate TouchHold This feature allows you
24. s on MIN MAX recording status indicators MIN means the display is showing the minimum recorded value MAX means the display is showing the maximum recorded value AVG means the display is showing the average value since starting recording up to about 35 hours continuous recording time means MIN MAX recording is on 15 787 Users Manual Table 6 Display cont No Element Meaning mA DC mV AC Show the input or output units and multipliers associated with the numerals M or kQ kHz ay Auto Range status indicators 400100030 Auto means autoranging is on The number plus the unit and multiplier indicate the active range AMP One of these lights in mA ramping or step output rotary switch position mA means slow continuous 0 100 0 ramping M means fast continuous 0 100 0 ramping m means ramping in 25 steps 16 ProcessMeter Measuring Electrical Parameters Measuring Electrical Parameters The proper sequence for taking measurements is as follows 1 Plug the test leads into the appropriate jacks 2 Set the rotary knob 3 Touch the probes to the test points Input Impedance For the voltage measurement functions input impedance is 10 MQ See the specifications for more information Ranges A measurement range determines the highest value the meter can measure Most meter measurement functions have more than one range see the Specifications Being
25. t leads and set the rotary switch to OFF With a standard blade hand screwdriver turn each battery door screw counterclockwise so that the slot is parallel with the screw picture molded into the case Lift off the battery door Figure 10 Replacing the Battery ee007f eps ProcessMeter Maintenance Replacing a Fuse A Warning To avoid personal injury or damage to the meter use only the specified replacement fuse 440 mA 1000V fast blow Fluke PN 943121 Both current input jacks are fused with a separate 440 mA fuse To determine if a fuse is blown 1 2 Turn the rotary switch to mA A C Plug the black test lead into COM and the red test lead into A Using an ohmmeter check the resistance between the meter test leads If the resistance is about 1Q the fuse is good An open means the fuse is blown Move red test lead to mA Using an ohmmeter check the resistance between the meter test leads If the resistance is about 14Q the fuse is good An open means the fuse is blown If a fuse is blown replace it as follows Refer to Figure 11 as necessary 1 Remove the test leads from the meter and turn the rotary switch to OFF Remove the battery door Remove the three Phillips head screws from the case bottom and turn the case over Gently lift the bottom of the front of the case nearest the input output jacks until the top unsnaps from the rear half of the case Replace th
26. ter with Flex Stand are shown in Figure 9 Maintenance This section provides some basic maintenance procedures Repair calibration servicing not covered in this manual must be performed by qualified personnel For maintenance procedures not described in this manual contact a Fluke Service Center General Maintenance Periodically wipe the case with a damp cloth and detergent do not use abrasives or solvents Calibration Calibrate your meter once a year to ensure that it performs according to its specifications Contact a Fluke Service Center for instructions ProcessMeter Maintenance PO Ill Cc fp Holster with Flex Stand bent Holster with probe in clip Holster with Flex Stand extended LES sa ce aa Meter in holster face down for protection Holster with Flex Stand Holster with Flex Stand Store Quick Reference Card under meter looped over wall looped over belt ee009f eps Figure 9 Using the Holster and Flex Stand 29 787 Users Manual Replacing the Battery A Warning To avoid electrical shock remove test leads from the meter before you open the battery door Close and latch the battery door before you use the meter Remove test leads from the meter before you open the battery door Replace the battery as follows Refer to Figure 10 Use an alkaline 9V battery type ANSI NEDA 1604A or IEC 6LR61 1 30 Remove the tes
27. that you can use Display 7 OOOO NE FLUKE 787 Processuerer a Pushbuttons CICIH Rotary Bpa W DOODO on oe re ou EC ee014f eps Figure 1 Fluke 787 ProcessMeter 787 Users Manual Getting Acquainted with the Meter To become familiar with the features and functions of the meter study the following figures and tables Figure and Table 2 describe the input output jacks Figure and Table 3 describe the input functions you get with the first five rotary switch positions Figure and Table 4 describe the output functions you get with the last two rotary switch positions Figure and Table 5 describe the functions of the pushbuttons Figure and Table 6 explain what all the elements of the display indicate OUTPUT 0 24mA SOURCE SIMULATE Ct art 5na A mA COM VA gt FUSED ee001f eps Figure 2 Input Output Jacks ProcessMeter Getting Acquainted with the Meter Table 2 Input Output Jacks Item V AH Jack l gt mA COM Input for voltage to 1000V Q Common for all measurements Measurement Functions Input for current to 440 mA continuous 1A for up to 30 seconds Fused with a 440 mA fuse Input for current to 30 mA Fused with a 440 mA fuse continuity and diode test Source Current Function Output for dc current to 24 mA Common for dc current output
28. to 24 mA Simulate Transmitter Function Output for transmitter simulation to 24 mA Use in series with an external loop supply Common for transmitter simulation to 24 mA Use in series with an external loop supply 787 Users Manual ee002f eps Figure 3 Rotary Switch Positions for Measurements ProcessMeter Getting Acquainted with the Meter Table 3 Rotary Switch Positions for Measurements A measure A dc BLUE selects ac High test lead in mA measure mA dc No Position Function s Pushbutton Actions OFF Meter off Va Default Selects a MIN MAX or AVG action see pg 18 measure ac V Selects a fixed range hold 1 second for auto range Toggles TouchHold Frequency counter Toggles relative reading sets a relative zero point V Measure dc V Same as above mV Measure dc mV Same as above 6 ma Default measure Q Same as above except diode test has only one range for continuity BLUE gt test mA A High test lead in Same as above except there is only one range for each input jack position 30 mA or 1A 787 Users Manual noe m oe lt ee008 eps Figure 4 Rotary Switch Positions for mA Output 10 ProcessMeter Getting Acquainted with the Meter Table 4 Rotary Switch Positions for mA Output No Position Default Function Pushbutton Actions OUTPUT Test leads in STEP or
Download Pdf Manuals
Related Search