Fluke 787B ProcessMeter™ Digital Multimeter with Loop Calibrator CAT III 1000V

Digital multimeter Fluke 787B ProcessMeter™ with Loop Calibration Function, CAT III 1000V Standard
A tool that boosts work efficiency by combining the capabilities of a DMM (Digital Multimeter) and a Loop Calibrator into one, allowing technicians to troubleshoot and calibrate equipment in 4-20 mA current loops accurately without carrying multiple devices. The unit supports DC current sourcing and simulating, along with detailed voltage and resistance measurement capabilities. Built rugged for heavy-duty use to Fluke standards and supports the Fluke Connect® system for wireless operation.

Features
Source, simulate, and measure DC current in milliamperes (mA)
Multimeter rated to CAT III 1000 V and CAT IV 600 V safety standards
Simultaneous mA and % of scale readout on the display for quick verification
Provides high mA reading resolution down to 1 microamp
Step and Ramp functions for testing valve operation and automatic controllers (I/P positioners)
Built-in 250 Ohm HART® resistor for communication with smart transmitters without an external resistor
Large LCD screen with backlight for convenient operation in dark areas
Supports wireless connectivity via Fluke Connect® (when used with the IR3000FC module)
Easy external fuse and battery replacement without opening the entire case

Applications
Installation and maintenance of factory automation control systems (PLC/DCS)
Calibration and adjustment of transmitters, such as pressure or temperature sensors
Functional testing of control valves and positioners
General electrical measurements requiring high precision in hazardous environments
Troubleshooting 4-20 mA loop systems in industrial applications

Measurement Functions
Voltage: Measures both DC (accuracy 0.1%+1) and True-rms AC (accuracy 0.7%+2) up to 1000 V
Current: Measures DC with resolution down to 30.000 mA and general AC/DC current up to 1.000 A (0.440 A continuous)
Resistance: Supports measurement ranges from 400.0 Ω up to 40 MΩ
Frequency: Measures from 199.99 Hz to 19.999 kHz
Other Tests: Supports diode test (2.000 V) and continuity check with audible beeper when resistance is below approximately 100 Ω

Output Functions
DC Current Output: Capable of sourcing current from internal battery in ranges of 0.000 to 20.000 mA or 4.000 to 20.000 mA, with over-range up to 24.000 mA
Output Drive Capability: Supports standard 24 V compliance voltage or 1,200 Ω resistance at 20 mA
DC Current Simulation: Supports operation with external loop supply from 15 V to 48 V, handling up to 1,000 Ω load at 20 mA

Current Adjustment Modes
Manual: Adjustable in Coarse, Fine, and Step modes at 25% or 100%
Automatic: Features Slow and Fast Ramp functions, as well as automatic 25% step stepping

Accuracy Standards
Output Accuracy: 0.05% of span
Operating Conditions: Accuracy specifications are valid for temperatures between 18 °C and 28 °C within one year after calibration

DC Current Output
Can source current in ranges of 0.000 to 20.000 mA or 4.000 to 20.000 mA
Can be set to over-range up to 24.000 mA
Accuracy of 0.05% of span
Drive capability of 24 V compliance or 1,200 Ω at 20 mA

DC Current Simulation
Supports external loop supply from 15 V to 48 V
Current simulation range of 0.000 to 20.000 mA or 4.000 to 20.000 mA (over-range to 24.000 mA)
Accuracy of 0.05% and supports a maximum load of 1,000 Ω at 20 mA

Current sourcing modes
Manual: selectable Coarse, Fine, and 25% or 100% step
Automatic: features Slow Ramp, Fast Ramp, and 25% step functions

** Additional Conditions **
Accuracy specifications apply over the temperature range of 18 °C to 28 °C for one year after calibration

Specification (Technical data)
Maximum voltage between jacks and ground: 1000 V rms
Storage temperature: −40 to 60 °C
Operating temperature: −20 to 55 °C
Temperature coefficient: 0.05 × (specified accuracy) per °C
(for temperatures < 18 °C or > 28 °C)
Relative humidity: 95% up to 30 °C / 75% up to 40 °C / 45% up to 50 °C / 35% up to 55 °C
Vibration: Random 2 g, 5–500 Hz
Shock: 1-meter drop test
Safety: IEC 61010-1, Pollution Degree 2 / IEC 61010-2-033, CAT IV 600 V / CAT III 1000 V
Dimensions (H × W × L): 50 × 100 × 203 mm (1.97 × 3.94 × 8.00 in)
Weight: 600 g (1.3 lbs)
Battery: 4 AA alkaline batteries
Battery Life: Approx. 140 hours (measurement mode) / approx. 10 hours (12 mA sourcing mode)