- 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
|
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 |
|
Diode test |
|
2.0 V shows diode voltage drop |
|
Display current and % of span |
|
Auto step, auto ramp |
|
Environmental Specifications |
Operating Temperature |
|
Storage Temperature |
|
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 |
|
Mechanical & General Specifications |
Size |
|
50 x 100 x 203 mm (1.25" H x 3.41"W x 7.35" L) |
|
Weight |
|
Batteries |
|
Warranty |
|
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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