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Fluke 789 ProcessMeter Digital Multimeter

Item no. FLUKE 789
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Fluke 789 ProcessMeter Digital Multimeter

Item no. FLUKE 789
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Fluke 789 ProcessMeter Digital Multimeter

Double Your Power

The Fluke 787 was the first tool to combine a Digital Multimeter (DMM) and a loop calibrator to give process technicians double the power in one tool. Now it’s even better, the range is extended with the new Fluke 789 – the ultimate loop calibration multimeter. The Fluke 789 has a 24-Volt loop supply reducing the need for taking a separate power supply when doing offline transmitter testing. And with its built-in, selectable 250-Ohm Hart® resistor, it also eliminates the need to carry a separate resistor with you. Now process technicians can do a lot more while carrying a lot less.

Features of the Fluke 789 ProcessMeter Digital Multimeter:

  • 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.

FLUKE 789 ProcessMeter Digital Multimeter Specifications
Current Measurement
Range: 0-1 A AC or DC
Resolution: 1 mA
Accuracy: 0.2% + 2 LSD (DC)
Range: 0-30 mA
Resolution: 0.001 mA
Accuracy: 0.05% + 2 LSD
Current Sourcing
Range: 0-20 mA or 4-20 mA
Resolution: 0.05% of span
Drive Capability: 24 V Compliance or 1200 ? @ 20 mA
  to 19.999 kHz, 0.005% + 1 LSD
  Beeps for resistance < 100 Ω
Voltage measurement
Range: 0-1000 V AC (true-rms) or DC
Resolution: 0.1 mV to 1.0 V
Accuracy: 0.1% Rdg + 1 LSD (VDC)
Resistance measurement
  to 40 MΩ, 0.2% + 1 LSD
Diode test
  2.0 V shows diode voltage drop
Display current and % of span
Auto step, auto ramp
Environmental Specifications
Operating Temperature
  -20 ºC to 55 ºC
Storage Temperature
  -40 ºC to 60 ºC
Humidity (Without Condensation)
  95% up to 30 ºC
  75% up to 40 ºC
  45% up to 50 ºC
  35% up to 55 ºC
Temperature Coefficient
  0.05 x (specified accuracy) per ºC (for temperatures < 18 ºC or > 28 ºC)
Safety Specifications
Electrical Safety
  Designed in accordance with IEC 1010-1, ANSI/ISA S82.01-1994 and CAN/CSA C22.2 No. 1010.1-92
Overvoltage category
  IEC 1010-1 CAT III 1000 V
  IEC 1010-1 CAT IV 600 V
Maximum voltage
  1000 V rms
Mechanical & General Specifications
  50 x 100 x 203 mm (1.25" H x 3.41"W x 7.35" L)
  600 g (13 oz.)
  4 AA Alkaline batteries
  3 years
Battery Life
  140 hours typical (measurement), 10 hours typical (sourcing 20 mA)
Shock & Vibration
  Random, 2 g, 5-500 Hz
  1 meter drop test

View Product Manual  


3-year limited warranty

30 day satisfaction guarantee
Satisfaction Guarantee
Your satisfaction is important to us. If you're not satisfied, return the product within 30 days of purchase for a refund or credit.

Return policy
Three year warranty
Limited Warranty
Circuit Specialists wants you to be happy with your purchase. This product comes with a three-year limited warranty.

Warranty policy
Free tech support
Free Tech Support
Circuit Specialists offers free technical support for the life of your product. Please call our technical team with any questions.

1-800-528-1417 ext. 3
Mon - Fri: 8:00 AM - 5 :00 PM (MST)

Expected delivery within 3-7 business days after shipping. Free shipping offer applies only to orders that weigh under 150 lbs. Offer limited to the contiguous U.S. Certain exclusions and limitations may apply. Circuit Specialists reserves the right to modify or discontinue any offer at any time.

Some products must be specially ordered, usually resulting in a 1–2 business day delay. Please contact us for an estimated delivery date.