Fluke 789 ProcessMeter™

The Fluke 789 ProcessMeter™ is the ultimate two-in-one tool, combining a full-featured loop calibrator with a precision True-RMS digital multimeter. Designed for instrumentation technicians and process professionals, the 789 provides the versatility to measure, source, and simulate 4–20 mA current loops—while also delivering top-tier DMM functions, all within a rugged CAT III 1000 V / CAT IV 600 V rated design.

Featuring dual backlit displays, 24V loop power supply, 250-ohm HART® resistor, and optional wireless connectivity via Fluke Connect™*, this ProcessMeter streamlines loop testing and documentation. From troubleshooting transmitters to logging and remote monitoring, the Fluke 789 helps you do more while carrying less.

*IR3000FC module sold separately.

Technical Specifications

Model: Fluke 789
Instrument Type: ProcessMeter – Multimeter + Loop Calibrator
Display: Dual backlit digital display
Loop Functions: Measure, source, simulate 4–20 mA
Advanced Features: SpanCheck, Auto Step, Auto Ramp, % of span display

Measurement & Sourcing Capabilities

• Voltage Measurement: 0–1000 V AC (True-RMS) or DC, 0.1% + 1 LSD
• Current Measurement (DC): 0–30 mA, 0.001 mA resolution, ±0.05% + 2 LSD
• Current Measurement (AC/DC): 0–1 A, 1 mA resolution, ±0.2% + 2 LSD
• Current Sourcing: 0–20 mA or 4–20 mA
• Drive Capability: 24V compliance or 1200 Ω @ 20 mA
• Resistance Measurement: Up to 40 MΩ, ±0.2% + 1 LSD
• Frequency: Up to 19.999 kHz, ±0.005% + 1 LSD
• Continuity: Audible beep for resistance < 100 Ω
• Diode Test: 2.0 V display of voltage drop
• Loop Power: Built-in 24V supply
• HART® Resistor: Built-in 250 Ω selectable

Environmental Specifications

• Operating Temperature: –20°C to +55°C
• Storage Temperature: –40°C to +60°C
• Humidity (non-condensing): 95% up to 30°C, 75% at 40°C, 45% at 50°C, 35% at 55°C
• Temperature Coefficient: 0.05 × (spec accuracy) per °C outside 18–28°C

Safety & Approvals

• Electrical Safety: IEC 1010-1, ANSI/ISA S82.01-1994, CAN/CSA C22.2 No 1010.1-92
• Overvoltage Category: CAT III 1000 V / CAT IV 600 V
• Max Voltage: 1000 V RMS

Mechanical & General Specifications

• Dimensions (H × W × L): 50 × 100 × 203 mm
• Weight: 610 g (1.6 lbs)
• Power: 4 × AA alkaline batteries
• Battery Life: ~140 hours (measurement), ~10 hours (sourcing 20 mA)
• Durability: 1-meter drop tested; vibration: 2 g, 5–500 Hz
• Warranty: 3 years

Key Features & Benefits

✅ Dual Functionality: Combines loop calibrator + TRMS DMM in one rugged tool.

✅ Built-In 24V Loop Supply: No need to carry external power for transmitter testing.

✅ HART-Ready: Integrated 250 Ω resistor simplifies setup.

✅ Wireless Logging Option: Add IR3000FC for Fluke Connect™ smartphone data logging.

✅ SpanCheck & Auto Modes: Save time with fast 0%/100% toggling, stepping, and ramping.

📦 Order the Fluke 789 ProcessMeter™ from Drive Outlet Megastore

At Drive Outlet Megastore, we offer unbeatable Fluke 789 prices for professionals who demand top-tier calibration and measurement functionality. Whether you’re diagnosing a loop or logging remotely, the Fluke 789 is your all-in-one, field-ready solution.

Check stock now or request a quote.

Calibrate smarter. Measure further. Fluke delivers. — Drive Outlet Megastore