Fluke 787B

Fluke 787B Overview

The Fluke 787B is a versatile troubleshooting tool that combines the functions of a precision digital multimeter (DMM) with a 0-20 mA loop calibrator/simulator. It enables you to measure, source, and simulate mA while simultaneously viewing both the loop current and its percentage of scale. With step and ramp features, you can perform automated calibration tasks. Rugged and field-ready, its ideal for instrumentation, control loops, and maintenance activities.

Key Features

• Measure, source, and simulate 0 to 20.000 mA or 4 to 20 mA

• Simultaneous display of mA value and % of scale

• Manual step control (100 %, 25 %, coarse, fine)

• Auto-step and auto-ramp modes

• True-RMS DMM functions: AC/DC volts, AC/DC amps, resistance, frequency up to 20 kHz, diode, continuity

• Rugged housing, drop protection, and battery accessibility

• Meets safety ratings for IEC CAT IV 600 V / CAT III 1000 V

• Wireless data logging via Fluke Connect (with adapter)

Technical Specifications

• Model: Fluke 787B

• DC Voltage Range: 400.0 mV 1000 V, accuracy: (0.1 % + 1 digit)

• AC Voltage Range (True RMS): same ranges, accuracy: (0.7 % + 2 digits)

• DC Current Output / Simulation: 0.000 to 20.000 mA or 4.000 to 20.000 mA (selectable), over-range to 24.000 mA

• Output Drive Capability (internal): 24 V compliance or ~1,200 ohms @ 20 mA

• Output Drive Capability (external loop supply): up to 1,000 ohms @ 20 mA

• Output Accuracy: 0.05 % of span

• DC Amps Range: 1.000 A (0.440 A continuous), accuracy: (0.2 % + 2 digits)

• AC Amps Range: 1.000 A (0.440 A continuous), accuracy: (1 % + 2 digits)

• Resistance Range: up to 40.00 M, accuracy: (0.2 % + 1 digit)

• Frequency Range: 0.5 Hz to 20 kHz, accuracy: (0.005 % + 1 digit)

• Diode Test: 2.000 V range, accuracy: (2 % + 1 digit)

• Continuity Beeper: beeps under ~100

• Operating Temperature: 20 C to +55 C

• Storage Temperature: 40 C to +60 C

• Drop Resistance: 1 m

• Dimensions: 50 100 203 mm

• Weight: ~600 g

• Battery: 4 AA alkaline

• Battery Life: ~140 hours (measurement mode), ~10 hours (sourcing 12 mA)

• Safety: IEC 61010-1, Pollution Degree 2

• Maximum voltage between any jack and earth: 1000 V RMS

Applications

• Calibration and maintenance of instrumentation current loops

• Field diagnostics of control systems (e.g. transmitters, valves)

• Measuring and sourcing simultaneously for comparison or calibration

• Field use where space and tool count are limited

Why Choose Fluke 787B

• Combines DMM and loop calibrator in one device fewer tools to carry

• High precision and robust safety certifications

• Advanced step and ramp functions for streamlined calibration

• Wireless data logging capability enhances field productivity

Order Now

The Fluke 787B ProcessMeter Loop Calibrator & DMM is available and ships worldwide.