Fluke 789 Processmeter


Key Features:

  • 24 V Loop power supply
  • Very large dual display
  • Enhanced backlight with 2 brightness settings
  • 1200 ohm drive capability on mA source
  • HART mode setting with loop power and a built-in 250 ohm resistor
  • 0% and 100% buttons to toggle between 4 and 20 mA sourcing for a quick span check
  • Externally accessible fuses for easy replacement
  • Infrared-port to process data in FlukeView Forms (V2.1) software
  • Precision 1000 V, 440 mA True-RMS digital multimeter
  • 0.1% dc voltage accuracy
  • 0.05% dc current accuracy
  • Frequency measurement to 20 kHz
  • Min/Max/Average/Hold/Relative modes
  • Diode Test and Continuity Beeper
  • Simultaneous mA and % of scale readout
  • 20 mA DC current source / loop calibrator / simulator
  • Manual Step (100%, 25%, Coarse, Fine) plus Auto Step and Auto Ramp
  • Externally accessible battery for easy battery changes
  • Safety conformance: Meets 1000 Volt EN61010-1 CAT III standards and 600 Volt EN61010-1 CAT IV standards.
  • Product Options:

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    Fluke 789 Process Multimeter
      Fluke 789 Buttons

          Fluke originally combined a 4-20 mA loop calibrator and a multimeter to give process technicians double the power in one tool, the original Fluke 787.  Now  Fluke made it even better - the ultimate loop calibration multimeter - the Fluke 789 ProcessMeter. The Fluke 789 has a display that's not only twice as large, but also twice as bright with two levels of backlighting. With its built-in, selectable 250 ohm HART® resistor, it eliminates the need to carry a separate resistor with you and behaves when connecting to a smart transmitter.  Now process calibration technicians can do a lot more while carrying a lot less.

    Current measurementRange0-1 A AC or DC
    Resolution1 mA
    Accuracy0.2% + 2 LSD (DC)
    Range0-30 mA
    Resolution0.001 mA
    Accuracy0.05% + 2 lSD
    Current sourcingRange0-20 mA or 4-20 mA
    Resolution0.05% of span
    Drive capability24 V Compliance or 1200 Ω @ 20 mA
    Frequencyto 19.999 kHz, 0.005% + 1 LSD
    ContinuityBeeps for resistance < 100 Ω
    Voltage measurementRange0-1000 V AC (true-rms) or DC
    Resolution0.1 mV to 1.0 V
    Accuracy0.1% Rdg + 1 LSD (VDC)
    Resistance measurementto 40 MΩ, 0.2% + 1 LSD
    Diode test2.0 V shoes diode voltage drop
    Display current and % of spanYes
    Auto Step, Auto RampYes
    Environmental Specifications
    Operating temperature-20°C to 55°C
    Storage temperature-40°C to 60°C
    Humidity (without condensation)95% up to 30°C
    75% up to 40°C
    45% up to 50°C
    35% up to 55°C
    Temperature coefficient0.05 x (specified accuracy) per °C (for temperatures < 18°C or > 28°C)
    Safety Specifications
    Electrical safetyDesigned in accordance with IEC 1010-1, ANSI/ISA S82.01-1994 and CAN/CSA C22.2 No 1010.1-92
    Overvoltage categoryIEC 1010-1 CAT III 1000 V
    IEC 1010-1 CAT IV 600 V
    Maximum voltage1000 V RMS
    Mechanical and General Specifications
    Size (H x W x L)50 x 100 x 203 mm (1.25 x 3.41 x 7.35 in)
    Weight610 g (1.6 lbs)
    Batteries4 AA alkaline batteries
    Warranty3 years
    Battery life140 hours typical (measurement), 10 hours typical (sourcing 20 mA)
    Shock and vibrationRandom, 2 g, 5-500 Hz
    1 meter drop test
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