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Fluke 789 Overview

Processmeter
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Download this manual See also: Supplement, User Manual
®
789
ProcessMeter
Product Overview
(E)
PN 1627890
August 2002 Rev. 2, 8/09
© 2002-2009 Fluke Corporation. All rights reserved. Printed in USA.
Specifications are subject to change without notice. All product names are
trademarks of their respective companies.

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Summary of Contents for Fluke 789

  • Page 1 ® ProcessMeter Product Overview PN 1627890 August 2002 Rev. 2, 8/09 © 2002-2009 Fluke Corporation. All rights reserved. Printed in USA. Specifications are subject to change without notice. All product names are trademarks of their respective companies.
  • Page 2 LIMITED WARRANTY AND LIMITATION OF LIABILITY This Fluke product will be free from defects in material and workmanship for three years from the date of purchase. This war- ranty does not cover fuses, disposable batteries, or damage from accident, neglect, misuse, alteration, contamination, or abnormal conditions of operation or handling.

  • Page 3: Table Of Contents

    Title Page Quick Reference Information..................ii Introduction ........................1 Accessing the Users Manual..................1 Contacting Fluke ......................1 Safety Information ......................2 How to Get Started......................5 Getting Acquainted with the Meter ................. 6 Power-Up Options ......................18 General Maintenance ..................... 19 Replacing the Batteries .....................

  • Page 4: Quick Reference Information

    Quick Reference Information Read Safety Information in the 789 Users Manual (located on CD) Measure Buttons Output Buttons Selects a MIN, MAX, or AVG action % STEP Adjusts output up or down to the next 25 % step Selects a fixed range (hold 1 second for auto range) COARSE Adjust output up or down 0.1 mA...

  • Page 5: Introduction

    ProcessMeter Accessing the Users Manual Introduction The 789 Users Manual is available on the 789 CD-ROM WWarning shipped with the ProcessMeter. If AutoRun is disabled on your computer, from the Start menu, select Run, (CD- Read “Safety Information” before using the Drive letter):\launch.exe <Enter>.

  • Page 6: Safety Information

    Product Overview Or, visit Fluke's website at www.fluke.com. WWarning To register your product, visit http://register.fluke.com. To avoid possible electric shock or personal To view, print, or download the latest manual supplement, injury: visit http://us.fluke.com/usen/support/manuals. Do not use the meter if it is damaged.
  • Page 7 ProcessMeter Safety Information Use only type AA batteries, properly Connect the common test lead before installed in the meter case, to power the connecting the live test lead. When meter. disconnecting test leads, disconnect the live test lead first. When servicing the meter, use only specified replacement parts.
  • Page 8 CAT IV equipment is designed to protect against Do not dispose of this product as unsorted CAT IV transients from the primary supply level, such as an municipal waste. Go to Fluke’s website for electricity meter or an overhead or underground recycling information. utility service.

  • Page 9: How To Get Started

    ProcessMeter How to Get Started How to Get Started If familiar with the Fluke 80 Series DMM, read “Using the Display Current Output Functions,” review the tables and figures in PROCESSMETER “Getting Acquainted with the Meter,” and begin using the meter.

  • Page 10: Getting Acquainted With The Meter

    Product Overview Getting Acquainted with the Meter Figure 4 and Tables 4 and 5 describe the output functions of the last three rotary function switch To become familiar with the features and functions of the positions. meter, study the following figures and tables. Figure 5 and Table 6 describe the functions of the Figure 2 and Table 2 describe the input/output jacks.
  • Page 11 ProcessMeter Getting Acquainted with the Meter Table 2. Input/Output Jacks Item Jack Measurement Functions Source Current Simulate Transmitter Function Function Input for current to 440 mA Output for dc current to 24 mA. continuous. (1 A for up to 30 Output for loop power supply.
  • Page 12 Product Overview HART LOOP POWER anw002f.eps Figure 3. Rotary Switch Positions for Measurements...
  • Page 13 ProcessMeter Getting Acquainted with the Meter Table 3. Rotary Function Switch Positions for Measurements Position Function(s) Pushbutton Actions Meter off Selects a MIN, MAX, or AVG action Default: Selects a fixed range (hold 1 second for auto range) Measure ac V Toggles AutoHold Toggles relative reading (sets a relative zero point) Frequency counter...
  • Page 14 Product Overview HART LOOP POWER anw008f.eps Figure 4. Rotary Switch Positions for mA Output...
  • Page 15 ProcessMeter Getting Acquainted with the Meter Table 4. Rotary Function Switch Positions for mA Output Position Default Function Pushbutton Actions Test leads in % STEP X or W: Adjusts output up or down to the next 25 % step OUTPUT SOURCE: COARSE X or W: Adjusts output up or down 0.1 mA Source 0 % mA...
  • Page 16 Product Overview MIN MAX RANGE HOLD 100% %STEP COARSE FINE SpanCheck anw003f.eps Figure 5. Pushbuttons...
  • Page 17 ProcessMeter Getting Acquainted with the Meter Table 6. Pushbuttons Pushbutton Function(s) Toggles the backlight (low, high, and off) mA Output: Adjusts mA output to 0 % value (4 mA or 0 mA) Span Check mA Output: Sets mA output to 100 % value (20 mA) Span Check Measuring: Selects a MIN, MAX, or AVG action mA Output: Adjusts mA output up to the next higher 25 % step...
  • Page 18 Product Overview Table 6. Pushbuttons (cont.) Pushbutton Function(s) FINE Measuring: Toggles between frequency counter and voltage measurement functions mA Output: Adjusts output down 0.001 mA Rotary function switch in position and test lead plugged into Ac jack: Toggles between (BLUE) ac and dc ampere measure (alternate Rotary function switch in V position: Toggles diode test function (D)
  • Page 19 ProcessMeter Getting Acquainted with the Meter anw004f.eps Figure 6. Elements of the Display...
  • Page 20 Product Overview Table 7. Display Element Meaning Shows the mA measured value or output level in %, in a 0-20 mA or 4-20 mA % (Percentage display) scale (change scales with power-up option) Lights when mA output (source or simulate) is active OUTPUT Lights in continuity function Lights when dangerous voltage is present...
  • Page 21 ProcessMeter Getting Acquainted with the Meter Table 7. Display (cont.) Meaning Element mA, DC, mV, AC, Show the input or output units and multipliers associated with the numerals M or k , kHz Auto Range Range status indicators: Manual Range Auto Range - autoranging is on Manual Range - the range is fixed 400100030...

  • Page 22: Power-Up Options

    Product Overview Power-Up Options Only the setting for current span is retained when the power is turned off. The other options have to be To select a power-up option, hold down the pushbutton repeated for each operating session. shown in Table 8 while turning the rotary function switch from OFF to any on position.

  • Page 23: General Maintenance

    ProcessMeter General Maintenance Replace the batteries as follows. Refer to Figure 7. Use General Maintenance four AA alkaline batteries. Periodically wipe the case with a damp cloth and Remove the test leads and turn the meter OFF. detergent; do not use abrasives or solvents. With a standard blade hand screwdriver, turn each Replacing the Batteries battery door screw counterclockwise so that the slot is...
  • Page 24 Product Overview anw037.eps Figure 7. Replacing the Batteries and Fuses...

  • Page 25: Replacing A Fuse

    To avoid personal injury or damage to the meter OFF. meter, use only the specified replacement fuse, 440 mA 1000 V fast-blow, Fluke PN With a standard blade hand screwdriver, turn each 943121. battery door screw counterclockwise so that the slot...

  • Page 26: Replacement Parts And Accessories

    Replacement parts and some accessories are shown in Figure 8 and listed in Table 9. Many more DMM ! Warning accessories are available from Fluke. For a catalog, contact the nearest Fluke distributor. To avoid personal injury or damage to the...
  • Page 27 ProcessMeter Replacement Parts and Accessories anw005f.eps Figure 8. Replacement Parts...
  • Page 28 Product Overview Table 9. Replacement Parts Reference Item Number Description Fluke PN or Model no. Quantity Designator MP14 Knob Assembly 658440 Top Case with Lens Protector 1622855 Decal, Top Case 1623923 Keypad 1622951 Top Shield 1622924 MP47 Top Shield Contact...
  • Page 29 ProcessMeter Replacement Parts and Accessories Table 9. Replacement Parts (continued) Reference Item Number Description Fluke PN or Model no. Quantity Designator MP50 Shock Absorber 878983 MP11 Bottom Case 659042 MP20 Battery Contact, Negative 658382 BT1-4 Battery, 1.5 V, 0-15 mA, AA Alkaline...

  • Page 30: Specifications

    Product Overview Specifications The standard specification interval is 1 year. All specifications apply from +18 C to +28 C unless Note stated otherwise. “Counts” refers to the number of increments or decrements of the least significant digit. All specifications assume a 5-minute warm-up period. DC Volts Measurement Range (V dc) Resolution...
  • Page 31 ProcessMeter Specifications AC Volts Measurement Accuracy, (% of Reading + Counts) Range (ac) Resolution 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 4.000 V 0.001 V...
  • Page 32 Product Overview DC Current Measurement Typical Burden Range Resolution Accuracy, (% of Reading + Counts) Voltage 30.000 mA 0.001 mA 0.05 % + 2 14 mV/mA 1.000 A (Note) 0.001 A 0.2 % + 2 1.5 V/A Note: 440 mA continuous, 1 A 30 seconds maximum Overload protection: 440 mA, 1000 V fast-blow fuse Ohms Measurement Range...
  • Page 33 ProcessMeter Specifications 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 Hz Frequency Counter Sensitivity Minimum Sensitivity (rms Sinewave) 5 Hz to 5 kHz*...
  • Page 34 Product Overview Diode Test and Continuity Test Simulate Mode: Diode test indication: Displays voltage drop across Span: 0 mA or 4 mA to 20 mA, with overrange to 24 mA device, 2.0 V full scale. Nominal test current 0.2 mA at Accuracy: 0.05 % of span 0.6 V.
  • Page 35 ProcessMeter Specifications Accuracy adders for use in RF Fields: In an RF field of ), ! Certifications: To 61010-1 2nd Edition 3 V/m, change the accuracy specifications as follows: ®, ; For AC Volts Measurement, add 0.25 % of range For DC Current Measurement, 30.000 mA range, add Power requirements: Four AA batteries (alkaline 0.14 % or range...
  • Page 36 Product Overview...

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