Fluke 789 - ProcessMeter
Double Your Power
The Fluke 787 was the first tool to combine a 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 Fluke 789 – the ultimate loop calibration multimeter. The Fluke 789 ProcessMeter combines a DMM and a Loop Calibrator, and 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
- 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 shows 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 & 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 & Vibration | Random, 2 g, 5-500 Hz 1 meter drop test |
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