Fluke 789 FE 789 Users Manual

Fluke 789 Manual

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  • Fluke 789 | FE 789 Users Manual - Page 1
    August 2002 Rev.1, 2/03 © 2002-2003 Fluke Corporation, All rights reserved. Printed in U.S.A. All product names are trademarks of their respective companies. ® 789 ProcessMeter Users Manual
  • Fluke 789 | FE 789 Users Manual - Page 2
    . This warranty does not cover fuses, disposable batteries, or damage from accident, neglect, misuse, alteration, contamination, 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 warranty period
  • Fluke 789 | FE 789 Users Manual - Page 3
    ...18 Ranges...18 Testing Diodes ...18 Displaying Minimum, Maximum, and Average 19 Using AutoHold ...19 Compensating for Test Lead Resistance 20 Using the Current Output Functions 20 Source Mode...20 Simulate Mode ...22 Producing a Steady mA Output 24 Manually Stepping the mA Output 25 i
  • Fluke 789 | FE 789 Users Manual - Page 4
    789 Users Manual Auto Ramping the mA Output 26 Power-Up Options ...27 Loop Power Supply Mode 29 Battery Life ...31 Maintenance...31 General Maintenance ...31 Calibration ...31 Replacing a Fuse...34 If the Meter does not Work 34 Replacement Parts and Accessories 35 Specifications ...39 ii
  • Fluke 789 | FE 789 Users Manual - Page 5
    9 4. Rotary Function Switch Positions for mA Output 11 5. Rotary Function Switch Position for Loop Supply 11 6. Pushbuttons ...13 7. Display ...16 8. mA Output Adjust Pushbuttons 25 9. mA Stepping Pushbuttons ...26 10. mA Step Values ...26 11. Power-Up Options...28 12. Typical Alkaline Battery
  • Fluke 789 | FE 789 Users Manual - Page 6
    789 Users Manual iv
  • Fluke 789 | FE 789 Users Manual - Page 7
    Fluke 789 ProcessMeter ...5 2. Input/Output Jacks ...6 3. Rotary Function Switch Positions for Measurements 8 4. Rotary Function Switch Positions for mA Output 10 5. Pushbuttons ...12 6. Elements of the Display ...15 7. Sourcing Current...21 8. Simulating a Transmitter ...23 9. Loop Power Voltage
  • Fluke 789 | FE 789 Users Manual - Page 8
    789 Users Manual vi
  • Fluke 789 | FE 789 Users Manual - Page 9
    the meter. The Fluke 789 ProcessMeter™ (referred to as "the meter") is a handheld, battery-operated tool for measuring electrical parameters, supplying steady or ramping current to test process instruments, and providing a > 24 V loop power supply. It has all the features of a digital multimeter
  • Fluke 789 | FE 789 Users Manual - Page 10
    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. • Use only type AA batteries, properly installed in the meter case
  • Fluke 789 | FE 789 Users Manual - Page 11
    • When servicing the meter, use only specified replacement parts. • Use caution when working above 30 V ac rms, 42 V ac pk, or 60 V dc. Such voltages pose a shock hazard. • When using the probes, keep fingers behind the finger guards on the probes. • Connect the common test lead before connecting
  • Fluke 789 | FE 789 Users Manual - Page 12
    789 Users Manual Symbol c Listed 950 Z CAT III Table 1. International Symbols Meaning Alternating current Symbol Meaning Earth ground Direct current Fuse Alternating or direct current Conforms to European Union directives Risk of danger. Important information. See manual. Battery Meets
  • Fluke 789 | FE 789 Users Manual - Page 13
    features that can be used. Display ProcessMeter How to Get Started 789 PROCESSMETER Rotary Switch 100% SpanCheck 0% MIN MAX %STEP RANGE COARSE REL HOLD FINE Hz mV V V mA A mA OFF A mA mA mA 250 HART LOOP POWER COM V Pushbuttons Input/Output Jacks Figure 1. Fluke 789 ProcessMeter
  • Fluke 789 | FE 789 Users Manual - Page 14
    789 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 2 and Table 2 describe the input/output jacks. • Figure 3 and Table 3 describe the input functions of the first six rotary function
  • Fluke 789 | FE 789 Users Manual - Page 15
    440 mA fuse. Output for dc current to 24 mA. Output for loop power supply. Input for current to 30 mA. Fused with a 440 mA fuse. Common for dc current output to 24 mA. Common for loop power supply. Input for voltage to 1000 V, Ω, continuity, and diode test. Common for all measurements. Simulate
  • Fluke 789 | FE 789 Users Manual - Page 16
    789 Users Manual 4 3 2 1 5 mV 6 mA V A V mA OFF mA mA 250 HART LOOP POWER Figure 3. Rotary Function Switch Positions for Measurements anw002f.eps 8
  • Fluke 789 | FE 789 Users Manual - Page 17
    ProcessMeter Getting Acquainted with the Meter Table 3. Rotary Function Switch Positions for Measurements No. Position Function(s) Pushbutton Actions A OFF Meter off B Default: S Measure ac V h Frequency counter M Selects a MIN, MAX, or AVG action R Selects a fixed range (hold 1 second for
  • Fluke 789 | FE 789 Users Manual - Page 18
    789 Users Manual mV mA V A 1 V mA OFF 2 mA 3 mA 250 HART LOOP POWER Figure 4. Rotary Function Switch Positions for mA Output anw008f.eps 10
  • Fluke 789 | FE 789 Users Manual - Page 19
    ProcessMeter Getting Acquainted with the Meter Table 4. Rotary Function Switch Positions for mA Output No. Position Default Function Pushbutton Actions A OUTPUT X B OUTPUT Y monp Test leads in SOURCE: Source 0 % mA Test leads in SIMULATE: Sink 0 % mA Test leads in SOURCE: Source repeating 0 %
  • Fluke 789 | FE 789 Users Manual - Page 20
    789 Users Manual 4 3 5 6 100% SpanCheck 0% MIN MAX %STEP RANGE COARSE REL HOLD FINE Hz 2 1 10 9 7 8 Figure 5. Pushbuttons anw003f.eps 12
  • Fluke 789 | FE 789 Users Manual - Page 21
    with the Meter Table 6. Pushbuttons No. Pushbutton Function(s) A b Toggles the backlight (low, high, and off) B Span Check mA Output: Adjusts mA output to 0 % value (4 mA or 0 mA) E C F mA Output: Sets mA output to 100 % value (20 mA) Span Check D X Measuring: Selects a MIN, MAX, or
  • Fluke 789 | FE 789 Users Manual - Page 22
    789 Users Manual Table 6. Pushbuttons (cont.) No. Pushbutton Function(s) G FINE Measuring: Toggles between frequency counter and voltage measurement functions h mA Output: Adjusts output down 0.001 mA W H J W Rotary function switch in position and test lead plugged into Ac jack: Toggles
  • Fluke 789 | FE 789 Users Manual - Page 23
    ProcessMeter Getting Acquainted with the Meter 7 6 5 4 3 9 10 11 8 2 1 12 13 14 15 17 16 Figure 6. Elements of the Display anw004f.eps 15
  • Fluke 789 | FE 789 Users Manual - Page 24
    789 Users Manual Table 7. Display No. A B C D E F G H IK J K L Element % (Percentage display) OUTPUT S Q B q Numerals l I D I N MAX MINAVG 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
  • Fluke 789 | FE 789 Users Manual - Page 25
    ProcessMeter Getting Acquainted with the Meter Table 7. Display (cont.) No. Element Meaning M mA, DC, mV, AC, Show the input or output units and multipliers associated with the numerals M or kΩ, kHz N Auto Range Range status indicators: Manual Range Auto Range - autoranging is on Manual
  • Fluke 789 | FE 789 Users Manual - Page 26
    789 Users Manual Measuring Electrical Parameters The proper sequence for taking measurements follows: 1. Plug the test leads into the appropriate jacks 2. Set the rotary function switch to the desired function 3. Touch the probes to the test points 4. View the results on the LCD display Input
  • Fluke 789 | FE 789 Users Manual - Page 27
    of all measurements. Press M to turn on MIN MAX recording. Readings are stored until the meter is turned off, switched to another measurement or source function, or MIN MAX is turned off. The beeper sounds when a new maximum or minimum is recorded. Auto power-off is disabled and auto ranging is
  • Fluke 789 | FE 789 Users Manual - Page 28
    lead resistance. 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. Choose source mode, in which the meter supplies the current, simulate mode, in which the meter regulates current in an externally powered
  • Fluke 789 | FE 789 Users Manual - Page 29
    789 PROCESSMETER 100% SpanCheck 0% MIN MAX %STEP RANGE COARSE REL HOLD FINE Hz mV V V mA A mA OFF A mA mA mA 250 HART LOOP POWER COM V ProcessMeter Using the Current Output Functions 40 20 60 80 0 100 Figure 7. Sourcing Current anw010f.eps 21
  • Fluke 789 | FE 789 Users Manual - Page 30
    789 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 15 to 48 V is in series with the current loop under test. WCaution Set the rotary function switch to one of the mA output settings BEFORE
  • Fluke 789 | FE 789 Users Manual - Page 31
    dc V Power Supply COM +24V 789 PROCESSMETER 100% SpanCheck 0% MIN MAX %STEP RANGE COARSE REL HOLD FINE Hz mV V V mA A mA OFF A mA mA mA 250 HART LOOP POWER COM V ProcessMeter Using the Current Output Functions 40 20 60 80 0 100 Figure 8. Simulating a Transmitter anw011f.eps 23
  • Fluke 789 | FE 789 Users Manual - Page 32
    789 Users Manual Producing a Steady mA Output When the rotary function 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
  • Fluke 789 | FE 789 Users Manual - Page 33
    down 0.1 mA ProcessMeter Using the Current Output Functions Manually Stepping the mA Output When the rotary function 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
  • Fluke 789 | FE 789 Users Manual - Page 34
    mA 15.000 mA 20.000 mA 20.000 mA 24.000 mA 24.000 mA Auto Ramping the mA Output Auto ramping gives the ability to continuously apply a varying current stimulus from the meter to a transmitter, while hands remain free to test the response of the transmitter. Select either sourcing or simulating
  • Fluke 789 | FE 789 Users Manual - Page 35
    . Wait 2 seconds before releasing the pushbutton after powering up the meter. The meter beeps to acknowledge the power-up option. Only the setting for current span is retained when the power is turned off. The other options have to be repeated for each operating session. Holding down more than one
  • Fluke 789 | FE 789 Users Manual - Page 36
    Enabled Enabled Disabled Action Taken Toggles between 0 - 20 mA and 4 - 20 mA range Disables beeper 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. Display HOLD (as long as button
  • Fluke 789 | FE 789 Users Manual - Page 37
    loop power is enabled, the meter is configured to measure mA and > 24 V dc is sourced between the mA and A jacks. The mA jack is the common and the A jack is at > 24 V dc. Connect the meter in series with the instrument current loop as Figure 10 shows. Voltage (V) ProcessMeter Loop Power Supply
  • Fluke 789 | FE 789 Users Manual - Page 38
    789 Users Manual 789 PROCESSMETER 100% SpanCheck 0% MIN MAX %STEP RANGE COARSE REL HOLD FINE Hz mV V V mA A mA OFF A mA mA mA 250 HART LOOP POWER COM V Red TEST DC PWR - ++ - +- Black Figure 10. Connections for Supplying Loop Power 30 anw009f.eps
  • Fluke 789 | FE 789 Users Manual - Page 39
    Battery Life Meter Operation Measuring any parameter Simulating Current Sourcing 12 mA into 500 Ω Hours 140 140 10 ProcessMeter Battery Life Maintenance This section provides some basic maintenance procedures. Repair, calibration, and servicing not covered in this manual must be performed
  • Fluke 789 | FE 789 Users Manual - Page 40
    789 Users Manual Replacing the Batteries ! Warning To avoid electrical shock: • Remove test leads from the meter before opening the battery door. • Close and latch the battery door before using the meter. Replace the batteries as follows. Refer to Figure 11. Use four AA alkaline batteries. 1. Remove
  • Fluke 789 | FE 789 Users Manual - Page 41
    ProcessMeter General Maintenance F1 F2 Figure 11. Replacing the Batteries and Fuses anw037.eps 33
  • Fluke 789 | FE 789 Users Manual - Page 42
    the screws one-quarter turn clockwise. If the Meter does not Work • Examine the case for physical damage. If there is damage, make no further attempt to use the meter, and contact a Fluke Service Center. • Check the battery, fuses, and test leads. • Review this manual to make sure you are using the
  • Fluke 789 | FE 789 Users Manual - Page 43
    meter will be repaired and returned for a fixed fee. Contact a Fluke Service Center for information and price. ProcessMeter Replacement Parts and Accessories Replacement Parts and Accessories ! Warning To avoid personal injury or damage to the meter, use only the specified replacement fuse, 440 mA
  • Fluke 789 | FE 789 Users Manual - Page 44
    789 Users Manual 1 3 8 4 5 6 7 9 10 36 2 16 15 14 13 17 18 26 20 12 21 11 Figure 12. Replacement Parts 30 19 27 29 28 25 24 23 22 anw005f.eps
  • Fluke 789 | FE 789 Users Manual - Page 45
    with Lens Protector Decal, Top Case Keypad Top Shield Top Shield Contact Contact Housing RSOB Contact Fuse, 440 mA, 1000 V fast-blow PCB Screw Bottom Shield IR Lens LCD Connectors, Elastomeric Backlight/Bracket LCD Display Mask ProcessMeter Replacement Parts and Accessories Fluke PN or Model no
  • Fluke 789 | FE 789 Users Manual - Page 46
    Door Tilt-Stand Accessory Mount with Probe Holders Access Door, Battery/Fuse Shock Absorber Battery Contacts Dual Battery Contact, Positive Case Screws Calibration Label Calibration Keypad TL71 Test Leads AC72 Alligator Clips 789 Product Overview CD-ROM (Contains Users Manual) Fluke PN or Model
  • Fluke 789 | FE 789 Users Manual - Page 47
    from +18 °C to +28 °C unless stated otherwise. All specifications assume a 5-minute warm-up period. The standard specification interval is 1 year. Note "Counts" refers to the number of increments or decrements of the least significant digit. DC Volts Measurement Range (V dc) Resolution Accuracy
  • Fluke 789 | FE 789 Users Manual - Page 48
    789 Users Manual DC Millivolts Measurement Range (mV dc) Resolution Accuracy, ±(% of + 4 7.0 % + 4 40.00 V 400.0 V 0.01 V 0.1 V 0.7 % + 2 0.7 % + 2 1.2 % + 4 1.2 % + 4 7.0 % + 4 7.0 % + 4 1000 V 1 V 0.7 % + 2 Specifications are valid from 5 % to 100 % of amplitude range. AC conversion
  • Fluke 789 | FE 789 Users Manual - Page 49
    Accuracy, ±(% of Reading + Counts) 30.000 mA 0.001 mA 0.05 % + 2 1.000 A (Note) 0.001 A 0.2 % + 2 Note: 440 mA continuous, 1 A 30 seconds maximum Overload protection: 440 mA, 1000 V fast-blow fuse ProcessMeter Specifications Typical Burden Voltage 1.5 V/A Typical Burden Voltage 14
  • Fluke 789 | FE 789 Users Manual - Page 50
    789 Users Manual Ohms Measurement Range Resolution 400.0 Ω 0. 1 Ω 4.000 kΩ 0.001 kΩ 40.00 kΩ 0.01 kΩ 400.0 kΩ 0.1 kΩ 4.000 MΩ 0.001 MΩ 40.00 MΩ 0.01 MΩ Overload protection: 1000 V Open circuit voltage: < 3.9 V Measurement Current 220 µA
  • Fluke 789 | FE 789 Users Manual - Page 51
    ProcessMeter Specifications Frequency Counter Accuracy Range Resolution 199.99 Hz 0.01 Hz 1999.9 Hz 0.1 Hz 19.999 kHz 0.001 kHz Display ) 150 mV 4 V 1 V 1 V 40 V 4 V 4 V 400 V 40 V 40 V 1000 V 400 V 400 V *Usable 0.5 Hz to 20 kHz with reduced sensitivity. 106 VHz max 43
  • Fluke 789 | FE 789 Users Manual - Page 52
    : 1000 V rms Loop Power Supply Voltage: 24 V Short circuit protected DC Current Output Source mode: Span: 0 mA or 4 mA to 20 mA, with overrange to 24 mA Accuracy: 0.05 % of span1 Compliance voltage: 28 V with battery voltage >~4.5 V 44 Simulate Mode: Span: 0 mA or 4 mA to 20 mA, with overrange to
  • Fluke 789 | FE 789 Users Manual - Page 53
    55 °C Vibration: Random 2g, 5 to 500 Hz Shock: 1 meter drop test Safety: Complies with EN61010, ANSI/ISA S82.01-1994 and CAN/CSA C22.2 No. 1010.1-92 Overvoltage Category III. ProcessMeter Specifications Certifications: , , , Power requirements: Four AA batteries (alkaline recommended) Size: 10
  • Fluke 789 | FE 789 Users Manual - Page 54
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®
789
ProcessMeter
Users Manual
August 2002 Rev.1, 2/03
© 2002-2003 Fluke Corporation, All rights reserved. Printed in U.S.A.
All product names are trademarks of their respective companies.