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Fluke 787 manual

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Table of contents for the manual

  • Page 1

    ® 787 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.[...]

  • Page 2

    LIMITED WARRANTY & LIMITATION OF LIABILITY This Fluke produc t will be free from defects in material and workm anship for three years from the date of purchas e. This warranty does not c over dispos able batteries or damage from accident, neglec t, misuse or abnorm al conditions of operation or handling. Resellers are not authoriz ed to extend [...]

  • Page 3

    i Table of Contents Title Page Introduction................................................................................................................... .1 Contacting Fluke ........................................................................................................... 1 Safety Information ..........................................[...]

  • Page 4

    787 Users M anual ii Simulate Mode .......................................................................................................... 22 Changing the Current Span ...................................................................................... 22 Producing a Steady mA Output ............................................................[...]

  • Page 5

    1 ProcessMeter Introduction W Warning Read “Safety Information” before you use the meter. Your Fluke 787 Proces sMeter  (referred to as “the meter”) is a handheld, battery -operated tool for measuring electrical param eters and supply ing steady or ramping current to test proc ess ins truments. It has all the features of a digital multim[...]

  • Page 6

    787 Users M anual 2 Address c orrespondence 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 vis it us on the World Wide Web: www.fluke .com Safety Informa tion The meter complies with IEC1010-1, ANSI/ISA S82.01- 1994 and CAN/CSA C22.2 N o. 1010.1-92 Overvoltage Ca[...]

  • Page 7

    ProcessMeter Safety Information 3 • 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 u[...]

  • Page 8

    787 Users M anual 4 Table 1. International Symbols Symbol Meaning Symbol Meaning Alternating current Earth ground Direct curre n t Fuse c Alternating or direct current Conforms to European U nion directives Refer to the manual for information about this feature. Conforms to relev ant Canadian Standards Ass ociation directiv es Battery T Double insu[...]

  • Page 9

    ProcessMeter How to Get Started 5 How to Get Started If you are familiar with the Fluk e 80 Series DMM , read “Using the Current Output Func tions,” review the tables and figures in “Getting Ac quainted with the Meter,” and begin using your m eter. If you are unfamiliar with Fluk e 80 Series DMM s, or DM Ms in general, read “Measuring Ele[...]

  • Page 10

    787 Users M anual 6 Getting Acquainted with the Meter To become fam iliar with the features and functions of the meter, study the following figures and tables. • Figure and Table 2 describe the input/output ja cks. • Figure and Table 3 describe the input func tions y ou get with the first five rotary switch pos itions. • Figure and Table 4 de[...]

  • Page 11

    ProcessMeter Getting Acquainted with the M eter 7 Table 2. Input/Output Jacks Item Jack Measurement Functions Source Current Function Simulate Transmitter Function A c A Input for current to 440 mA continuous. (1A for up to 30 seconds .) Fused with a 440 mA fuse. Output for dc current to 24 m A. B d mA Input for current to 30 mA. Fused with a 440 m[...]

  • Page 12

    787 Users M anual 8 4 3 5 1 2 6 OFF mA mA A mA mV V V OUTPUT ee002f.eps Figure 3. Rotary Switch Positions for Measurements[...]

  • Page 13

    ProcessMeter Getting Acquainted with the M eter 9 Table 3. Rotary Switch Positions for Measurements No. Position Function(s) Pushbutton Actions A OFF Meter off B V A Default: measure ac V F Frequency c ounter M Selects a M IN, MAX, or AVG ac tion (see pg. 18) K Selects a fix ed range (hold 1 second for auto range) I Toggles TouchH old C Toggles rel[...]

  • Page 14

    787 Users M anual 10 OFF mA mA A mA mV V V OUTPUT 2 1 ee008.eps Figure 4. Rotary Switch Positions for mA Output[...]

  • Page 15

    ProcessMeter Getting Acquainted with the M eter 11 Table 4. Rotary Switch Positions for mA Output No. Position Default Function Pushbutton Actions A OUTPUT [ mA Test leads in SOURCE: Source 0% mA Test leads in SIMULATE: Sink 0% mA % STEP X or W : Adjusts output up or down to the nex t 25% step COARSE Z or Y : Adjusts output up or down 0.1 m A FINE [...]

  • Page 16

    787 Users M anual 12 2 3 1 5 4 6 7 8 MIN MAX RANGE HOLD H REL Hz % STEP COARSE FINE ee003f.eps Figure 5. Pushbuttons Table 5. Pushbuttons No. Pushbutton Function(s) A b Toggles the back light B U (BLUE) Rotary switc h in mA A L position and test lead plugged into c A jack: Toggles between ac and dc ampere meas ure Rotar y switch i n O position: Sel[...]

  • Page 17

    ProcessMeter Getting Acquainted with the M eter 13 Table 5. Pushbuttons (cont.) No. Pushbutton Function(s) C X M % STEP Measuring: Selects a M IN, MAX, or AVG ac tion (see pg. 18) mA Output: Adjusts m A output up to the next higher 25% step D Z K COARSE Measuring: Selects a fix ed range (hold for 1 second for auto range) mA Output: Adjusts output u[...]

  • Page 18

    787 Users M anual 14 1 5 3 2 4 8 6 7 9 10 12 11 ee004f.eps Figure 6. Elements of the Display[...]

  • Page 19

    ProcessMeter Getting Acquainted with the M eter 15 Table 6. Display No. Element Meaning A Percentage display Shows the mA m easured value or output lev el in %, in a 0-20 mA or 4-20 mA scale (change sc ales with power-up option) B OUTPUT Lights when mA output (s ource or simulate) is active C D Lights in diode test func tion D S Lights in continuit[...]

  • Page 20

    787 Users M anual 16 Table 6. Display (cont.) No. Element Meaning J mA, DC, mV, AC, M or k Ω , kHz Show the input or output units and multipliers assoc iated with the numerals K Auto 400100030 Range status indic ators: Auto means autoranging is on. The number plus the unit and m ultiplier indicate the active range. L EP N One of these lights in m[...]

  • Page 21

    ProcessMeter Measuring Elec trical Parameters 17 Measuring Electrical Parameters The proper sequence for tak ing measurements is as follows: 1. Plug the test leads into the appropriate ja cks. 2. Set the rotary knob. 3. Touch the probes to the tes t points. Input Impedance For the voltage meas urement functions, input im pedance is 10 M Ω . See t[...]

  • Page 22

    787 Users M anual 18 Testing Diodes To test a single diode: 1. Insert the red test lead into the V jack an d black tes t lead into the COM jack. 2. Set the rotary switc h to O . 3. Press the BLUE pushbutton so that the D sym bol is on the display . 4. Touch the red probe to the anode and the black probe to the cathode (side with band or bands ). Th[...]

  • Page 23

    ProcessMeter Measuring Elec trical Parameters 19 Using TouchHold Note You must hav e MIN MAX rec ording off to use TouchHold. ! 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 Touc hHold  if you want the meter to freeze th[...]

  • Page 24

    787 Users M anual 20 Using the Current Output Functions The meter provides steady, s tepped, and ramped current output for testing 0-20 mA and 4-20 m A current loops. You can choos e source m ode, in which the m eter supplies the c urrent, or simulate mode, in w hich the meter regulates c urrent in an externally-powered c urrent loop. Source Mode S[...]

  • Page 25

    ProcessMeter Using the Current Output Func tions 21 OFF A mA COM V 1000V 30mA FUSED 0.44A (1A / 30 sec) FUSED mA mA A mA OUTPUT 0-24mA SOURCE SIMULATE + + % STEP COARSE FINE mV V V OUTPUT CAT 787 PROCESSMETER MIN MAX RANGE HOLD H REL Hz 40 20 0 100 80 60 ee010f.eps Figure 7. Sourcing Current[...]

  • Page 26

    787 Users M anual 22 Simulate Mode Simulate mode is s o named becaus e the meter sim ulates a current loop transm itter. Use sim ulate mode when an external dc v oltage 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. Other[...]

  • Page 27

    ProcessMeter Using the Current Output Func tions 23 OFF A mA COM V 1000V 30mA FUSED 0.44A (1A / 30 sec) FUSED mA mA A mA OUTPUT 0-24mA SOURCE SIMULATE + + % STEP COARSE FINE mV V V OUTPUT CAT 787 PROCESSMETER MIN MAX RANGE HOLD H REL Hz dc V Power Supply 40 20 0 100 80 60 COM +24V ee011f.eps Figure 8. Simulating a Transmitter[...]

  • Page 28

    787 Users M anual 24 Producing a Steady mA Output When the rotary switc h is in the OUTPU T [ mA position, and the OUTPUT ja cks are c onnected to an appropriate load, the meter produces a steady m A dc output. The meter begins s ourcing or simulating 0%. Us e the pushbuttons to adjus t the current as s hown in Table 8. Select either sourc ing or s[...]

  • Page 29

    ProcessMeter Using the Current Output Func tions 25 Manually Stepping the mA Output When the rotary switc h is in the OUTPU T [ mA position, and the OUTPUT ja cks are c onnected to an appropriate load, the meter produces a steady m A dc output. The meter begins s ourcing or simulating 0%. Us e the pushbuttons to s tep the current up and down in 25%[...]

  • Page 30

    787 Users M anual 26 Table 10. mA Step Values Step Value (for each span setting) 4 to 20 mA 0 to 20 mA 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 Ramping the mA Output Auto ramping gives you the ability to c ontinuously apply a varying c urre[...]

  • Page 31

    ProcessMeter Power-Up Options 27 Power-Up Options To select a pow er-up option, hold down the pushbutton shown in Table 11 while turning the rotary switch from OFF to any on pos ition. Wait 2 seconds before y ou release the pushbutton after powering up the m eter. The meter beeps to ac knowledge the power-up option. Only the setting for c urrent sp[...]

  • Page 32

    787 Users M anual 28 Battery Life W Warning To avoid false readings, which could lead to possible electric shock or personal injury, replace the battery as soon as the battery indicator ( B ) appears. Table 12 shows ty pical alkaline battery life. To preserve battery life: • Use current s imulation instead of s ourcing when possible. • Avoid us[...]

  • Page 33

    ProcessMeter Maintenance 29 Holster with Flex-Stand bent Holster with Flex-Stand extended Holster with probe in clip Holster with Flex-Stand looped over wall Meter in holster face down for protection (Store Quick Reference Card under meter) Holster with Flex-Stand looped over belt ee009f.eps Figure 9. Using the Holster and Flex-Stand[...]

  • Page 34

    787 Users M anual 30 Replacing the Battery ! 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 tes t leads from the m eter before you open the battery door. Replace the battery as follows. Refer to Figure 10. U se an alkaline 9V bat[...]

  • Page 35

    ProcessMeter Maintenance 31 Replacing a Fuse ! 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 ja cks are fu sed wi th a s eparate 440 mA fuse. To determine if a fuse is blown: 1. Turn the rotary switc h to mA A L . 2. Plug the black tes t [...]

  • Page 36

    787 Users M anual 32 If the Meter does not Work • Examine the c ase for physic al damage. If there is damage, make no further attem pt to use the meter, and contact a Fluk e Service Center. • Check the battery , fuses, and tes t leads. • Review this m anual to make s ure you are using the corre ct ja cks and rotary switch pos ition. If the me[...]

  • Page 37

    ProcessMeter Replacement Parts and Acces sories 33 Replacement Parts and Accessories ! 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 servic ing the meter, use only the replacement parts specified here. Replacement parts and some ac cess ories are [...]

  • Page 38

    787 Users M anual 34 Table 13. Replacement Parts Item Description Fluke PN or Model no. Quantity BT1 9V battery, ANSI/NEDA 1604A or IEC 6LR61 614487 1 CG81Y Holster, Yellow CG81G 1 ! F1, 2 Fuse, 440 mA, 1000V fast-blow 943121 2 MP85 Case top 619962 1 MP86 Case bottom 619939 1 H2, 3, 4 Cas e screw 832246 3 MP89, 90 Non-sk id foot 824466 2 MP8 O-ring[...]

  • Page 39

    ProcessMeter Replacement Parts and Acces sories 35 F2 F1 MP8 H2, 3, 4 BT1 H5, 6 MP85 MP86 Holster CG81Y AC70A Alligator Clips TL20 (Option) Industrial Test Lead Set S1 MP92 Product Overview Manual CD-ROM (Users Manual) TL75 Test Lead Set MP89, 90 ee015c.eps Figure 12. Replacement Parts[...]

  • Page 40

    787 Users M anual 36 Specifications All specific ations apply from +18 ° C to +28 ° C unles s stated otherwise. All specific ations ass ume a 5 minute w armup period. The standard spec ification interval is 1 year. Note “Counts” means number of incr ements or decrements of the least signific ant digit. DC Volts Measurement Range (V dc) Resolu[...]

  • Page 41

    ProcessMeter Specifications 37 DC Millivolts Measurement Range (mV dc) R esolution 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 m V 0.7% + 4 1.2% + 4 7.0% + 4 4.000V 0.001V 0.7% + 2 1.2% + 4 7.0% + [...]

  • Page 42

    787 Users M anual 38 AC Current Measurement Range 45 Hz to 2 kHz Resolution Accuracy, ± (% of Reading + Counts) Typical Burden Voltage 1.000A (Note) 0.001A 1% + 2 1.5V/A Note: 440 mA continuous , 1A 30 seconds maxim um Specifications are valid from 5% to 100% of am plitude range. AC convers ion: true rms Maximu m crest fact or: 3 For non-sinusoida[...]

  • Page 43

    ProcessMeter Specifications 39 Ohms Measurement Range Resolution Measurement Current Accuracy, ± (% of Reading + Counts) 400.0 Ω 0. 1 Ω 220 µ A 0.2% + 2 4.000 k Ω 0.001 k Ω 59 µ A 0.2% + 1 40.00 k Ω 0.01 k Ω 5.9 µ A 0.2% + 1 400.0 k Ω 0.1 k Ω 590 nA 0.2% + 1 4.000 M Ω 0.001 M Ω 220 nA 0.35% + 3 40.00 M Ω 0.01 M Ω 22 nA 2[...]

  • Page 44

    787 Users M anual 40 Frequency Counter Accuracy Range Resolution Accuracy, ± (% of Reading + Counts) 199.99 Hz 0.01 Hz 0.005% + 1 1999.9 Hz 0.1 Hz 0.005% + 1 19.999 kHz 0.001 kHz 0.005% + 1 Display updates 3 times /second at >10 H z Frequency Counter Sensitivity Input Range Minimum Sensitivity (rms Sinewave) 5 Hz to 5 kHz * 1 V 0.1 V 4 V 1 V 40[...]

  • Page 45

    ProcessMeter Specifications 41 Diode Test and Continuity Test Diode test indication: display voltage drop: 0.2 m A nominal test c urrent at 0.6V: 2.4V full scale, ac curacy ± (2% + 1 count) Continuity test indication: continuous audible tone for test resis tance <100 Ω Open circuit voltage : <3.9V Short circuit current: 1.2 mA typic al Ove[...]

  • Page 46

    787 Users M anual 42 Vibration: Random 2g, 5 to 500 Hz Shock: 1 meter drop test Water and dust protection: Complies with IEC 529 IP52 (normal operating vacuum used for dust tes t) Safety: Complies with IEC1010-1, ANSI/ISA S82.01- 1994 and CAN/CSA C22.2 N o. 1010.1-92 Overvoltage Category III . Certifications: CSA, UL, TÜV Power requirements: Singl[...]

  • Page 47

    43 Index —A— Auto Ramping, 17, 26 Ranging, 17 Stepping, 17 —B— Battery Replacement, 30 Buttons, 12 —C— Calibrating the meter, 28 Compensating for tes t lead resistanc e, 19 Composite Signals , 17 Current output Compliance, 24 Load impedance, 24 Ramping, auto, 26 Simulating a transmitter, 22 Sourcing, 20 Span (4-20 mA or 0-20 mA), 22 Ste[...]

  • Page 48

    787 Users M anual 44 —F— Flex-Stand, 28 Freezing a reading (TouchHold), 19 Fuse, chec king and replacing, 31 —H— Holster, 28 —I— Inp ut/ Outp ut j acks, 7 —J— Jacks, 7 —K— Knob positions, 9, 11 —L— Loop supply, ex ternal, 22 M— mA output. See Current output Mailing address for Fluke, 2 Maintenance, 28 Malfunction, 32 Measu[...]

  • Page 49

    Index ( continued ) 45 —R— Range Auto, 17 Locking, 17 Ranges, 17 Relative reading, 19 Rotary sw itch positions , 9, 11 —S— Safety information, 2 Screen, 15 Service and s ales, 1 Settings, 27 Simulating. See Current output Sourcing. See Current output Specifications , 36 Switch positions , 9, 11 Symbols , international, 4 —T— Telephone n[...]

  • Page 50

    787 Users M anual 46[...]