Description
The Fluke 789 ProcessMeter is an industrial-grade diagnostic instrument that combines a full-featured True-RMS digital multimeter with a precision mA loop calibrator. Engineered for process automation technicians, this unit eliminates the necessity of deploying multiple diagnostic tools by integrating a 24V loop power supply and a built-in 250 Ohm HART resistor. This architecture streamlines the troubleshooting of complex control loops and provides highly accurate voltage and current telemetry.
Technical Specifications:
Manufacturer: Fluke
Model Number: 789
Device Type: Digital ProcessMeter and Loop Calibrator
DC Voltage Measurement: 0 to 1000 V (± 0.1% + 1 LSD)
AC Voltage Measurement: 0 to 1000 V (True-RMS)
DC Current Measurement: 0 to 30 mA (± 0.05% + 2 LSD)
Current Sourcing and Simulation: 0 to 20 mA / 4 to 20 mA
Loop Power Supply: 24 V DC
HART Resistor: Built-in 250 Ohm (selectable)
Resistance Measurement: Up to 40 M-Ohm
Frequency Measurement: Up to 19.999 kHz
Safety Rating: IEC 61010 CAT III 1000 V, CAT IV 600 V
Operating Temperature: -20°C to 55°C
Dimensions: 203 x 100 x 50 mm
Weight: 600 g
Power Source: 4 x 1.5V AA Alkaline batteries
Industrial Application:
The Fluke 789 is specifically engineered for maintaining, troubleshooting, and calibrating distributed control systems (DCS) and programmable logic controllers (PLC). The integrated 250 Ohm resistor facilitates direct communication with HART smart transmitters without requiring a separate inline resistor. This Technical Compatibility ensures seamless integration into petrochemical refineries, water treatment facilities, and power generation plants where precise 4-20 mA control loops dictate critical valve positioning and sensor telemetry.
Procurement Information:
Backed by Fluke Original Engineering standards, this instrument guarantees long-term calibration stability, electrical safety, and rugged field performance. We maintain an optimized supply chain protocol to ensure an expedited Lead Time, supporting critical plant turnaround operations and emergency maintenance schedules.
Key Attributes
Accuracy Class: 0.1%
Current Range: 20 mA
Insulation Resistance: 1200 Ω
Measuring Range: 0-20 mA or 4-20 mA
Testing Voltage: 0-1000 V
Place of Origin: United States
Model Number: 789
Brand Name: Fluke
Current Resolution: 1 mA
Dimensions: 50 x 100 x 203 mm
Display Type: Digital Only
Operating Temperature: -20 to 50°C
Time Resolution: 1 ms
Current Measurement Range: 0 to 1 A AC or DC
Current Sourcing Range: 0 to 20 mA or 4 to 20 mA
Voltage Measurement Range: 0 to 1000 V AC (True RMS) or DC
Electrical Specifications Frequenc: To 19.999 kHz, 0.005% + 1 LSD
Accuracy: 0.1%
Operating Temperature: -4 to 131°F (-20 to 55°C)
Maximum Voltage: 1000 V RMS
Batteries: 4 x AA Alkaline batteries
Packaging and Delivery
Selling Units: Single item
Single package size: 31X17X15 cm
Single gross weight: 2.000 kg
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