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Fluke 789 ProcessMeter

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Fluke

Features of the Fluke 789

  • 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

Fluke 789 features that are also included in the Fluke 787

  • 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.

Increase the power of your Process Meter with FVF-SC2 FlukeView® Forms Documenting Software


Measurement Function
V dc Range and Resolution
400.0 mV, 4.000 V, 40.00 V, 400.0 V, 1000 V

Best Accuracy (% of reading + LSD)
0.1 % + 1

V ac (true-rms) Range and Resolution
400.0 mV, 4.000 V, 40.00 V, 400.0 V, 1000 V

Best Accuracy (% of reading + LSD)
0.7 % + 2
mA dc Range and Resolution
30.000 mA

Best Accuracy (% of reading + LSD)
.05 % + 2
A dc Range and Resolution
1.000 A (0.440 A continuous)

Best Accuracy (% of reading + LSD)
0.2 % + 2
A ac Range and Resolution
1.000 A (0.440 A continuous)

Best Accuracy (% of reading + LSD)
1 % + 2
Resistance Range and Resolution
400.0 Ohms, 4.000 k, 40.00 k, 400.0 k, 4.0 M, 40 M

Best Accuracy (% of reading + LSD)
0.2 % + 1
Frequency (0.5 Hz to 20 kHz) Range and Resolution
199.99 Hz, 1999.9 Hz, 19.999 kHz

Best Accuracy (% of reading + LSD)
.005 % + 1
Diode Test Range and Resolution
2.000 V (shows diode voltage drop)

Best Accuracy (% of reading + LSD)
2 % + 1
Continuity Range and Resolution
Beeps for resistance < approx. 100 ohms


Output Function
DC Current Output
(Internal battery operation)		 Range and Resolution
0.000 to 20.000 mA or 4.000 to 20.000 mA
(selectable at power-up)
Over-range to 24.000 mA

Drive Capability (% of span)
24 V compliance, or,
1,200 Ohms, @ 20 mA

Accuracy
.05 %
DC Current Simulate
(Ext. 24 Volt loop supply)		 Range and Resolution
0.000 to 20.000 mA or 4.000 to 20.000 mA,
(selectable at power-up)
Over-range to 24.000 mA

Drive Capability (% of span)
1000 Ohms, @ 20 mA

Accuracy
.05 %
24 V Loop Supply Range and Resolution
Minimum 24 V

Drive Capability (% of span)
250 Ohms @ 20 mA

Accuracy
> 24 V
Current Adjustment Modes  Range and Resolution
Manual: 0.001 mA, 0.1 mA, 25 % and 100 % step
Automatic: Slow Ramp, Fast Ramp, 25 % step
      *Temperature range of 18 °C to 28 °C, for one year after calibration


General Specifications
Maximum voltage applied between
any jack and earth ground:		 1000 V RMS
Storage temperature: -40 °C to 60 °C
Operating temperature: -20 °C to 55 °C
Temperature coefficient: 0.05 x (specified accuracy) per °C (for temperatures < 18 °C or > 28 °C)
Relative humidity 95 % up to 30 °C;
75 % up to 40 °C; 45 % up to 50 °C;
35 % up to 55 °C
Vibration: Random, 2 g, 5-500 Hz
Shock: 1 meter drop test
Safety: Designed in accordance with
EN61010, ANSI/ISA S82.01-1994 and
CAN/CSA C22.2 No. 1010..1-92
Over-voltage Category III
Size: 50 mm H x 100 mm W x 203 mm L
(1.97 in H x 3.94 in W x 8.00 in L)
Weight: 600 g (1.3 lbs)
Battery: Four AA alkaline batteries
Battery life: 140 hours typical (measurement), 10 hours typical (sourcing 12 mA)
Warranty: 3 years



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