Details
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
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
