Descripción
Fluke 789 – Process Meter with 250 Ohm HART Resistor
- 24 V Loop power supply
- Very large dual display
- 1200 Ohm drive capability on mA source
- Fluke Connect Compatibility
- HART mode setting with loop power and a built-in 250 ohm resistor
The Fluke 789 processmeter is a noticeable improvement over the previous generation 787. Featuring a more intuitive and user friendly design, the 789 also has a display that is approximately twice the size of the 787. The redesigned display is also much brighter with two levels of background lighting options. This makes it adaptable to both bright and dark working environments. The externally accessible AA alkaline batteries last a typical 140 hours in measurement mode and are easy to change in the field. So, let this powerful two in one multimeter be the only tool you need.
Digital Multimeter Functionality
The digital multimeter functionality of the 789 is a powerful tool suitable for a variety of applications. It is rated at 1000 V, 440 mA including features such as True-RMS, diode testing and a continuity beeper. The integrated multimeter is designed to meet 1000 volt IEC 1010 CAT III standards.
2-in-1
The Fluke 789 has a 24-Volt loop supply reducing the need for taking a separate power supply when doing offline transmitter testing. As with the 787, the 789 combines a loop calibrator and a digital multimeter into a single instrument. New for the 789 is the addition of an integrated 250 ohm HART® resistor. By adding the integrated resistor, Fluke has eliminated the need to also carry a stand-alone resistor around a job site.
Manufacturer Specs
| 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 |
Tech Specs
Process / Calibration/Multifunction Calibrators Template |
|
|---|---|
| Type | Hand Held |
| Measure Voltage | Yes |
| Simulate Loop Voltage | No |
| Voltage Measurement Max | 1000 V |
| Voltage Measurement Min | 0.1 mV (0.0001 V) |
| Source/Simulate DC Current | Yes |
| Measure DC Current | Yes |
| Current Measurement Max | 1 A (1000 mA) |
| Current Measurement Min | 1 mA |
| Source/Simulate Resistance | No |
| Measure Resistance | Yes |
| Resistance Measurement Max | 40 M Ohms (40000000 Ohms) |
| Resistance Measurement Min | 0.1 Ohms |
| Source/Simulate Frequency | No |
| Measure Frequency | Yes |
| Frequency Measurement Max | 20 kHz (20000 Hz) |
| Frequency Measurement Min | 0.5 Hz |
| Measure RTD | No |
| Measure Thermocouples | No |
| Source/Simulate Pressure | No |
| Pressure Modules Available | No |
| Hart Compatible | No |
| FieldBus Compatible | No |
| Backlighted | Yes |
| Graphical Screen | No |
| Intrinsically Safe(Calibrators) | No |
Test Equipment General Attributes |
|
| Unique Features | 789 ProcessMeter combines a loop calibrator with a DMM. 24 V Loop power supply. DMM designed to meet 1000 volt IEC 1010 CAT III standards. Infrared I/O serial port compatible with FlukeView® Forms Software. |
| Warranty | 3 YEARS |
| Safety Approval | CSA |
| Product Weight | 2.56 LBS |
| Product Height | 2.99 IN |
| Product Length | 9.02 IN |
| Product Width | 5.98 IN |
| Shipping Weight | 2.82 LBS |
| Data Logging | No |
| Battery Type | AA |
| Power Supply Voltage | Battery Powered |
| Country of Origin | United States |
| Shipping Height | 2.99 IN |
| UPC | 095969112192 |
| Shipping Length | 9.02 IN |
| Shipping Width | 5.98 IN |
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