Fluke 789 ProcessMeter™
Now compatible with Fluke Connect™ App
The Fluke 789 ProcessMeter is the ultimate troubleshooting tool for electricians and instrumentation professionals, combining the functionality of a loop calibrator with the power of a digital multimeter. By equipping the 789 with a temperature measurement module and the wireless data logging capabilities of Fluke Connect™ with ShareLive™ video call (sold separately), process technicians can now do a lot more while carrying a lot less. And with its built-in, selectable 250 ohm HART® resistor, it eliminates the need to carry a separate resistor with you.
| Model Name | Description |
| Fluke 789 | Fluke 789 ProcessMeter™ Includes:
|
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.
| 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 Ω @ 20 mA | ||||||||||||||||||||||
| Frequency | To 19.999 kHz, 0.005% + 1 LSD | ||||||||||||||||||||||
| Continuity | 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 shoes diode voltage drop | ||||||||||||||||||||||
| Display current and % of span | Yes | ||||||||||||||||||||||
| Auto Step, Auto Ramp | Yes | ||||||||||||||||||||||
| 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 and General Specifications | ||
| Size | 50 x 100 x 203 mm (1.25" H x 3.41"W x 7.35" L) | |
| Weight | 610 g (1.6 lbs) | |
| Batteries | 4 AA alkaline batteries | |
| Warranty | 3 years | |
| Battery life | 140 hours typical (measurement), 10 hours typical (sourcing 20 mA) | |
| Shock and vibration | Random, 2 g, 5-500 Hz 1 meter drop test | |
