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Fluke 789 ProcessMeter Review: True‑RMS Multimeter with 4‑20 mA Loop Calibration

Fluke 789 ProcessMeter Review: True‑RMS Multimeter with 4‑20 mA Loop Calibration

Table of Contents

Fluke 789 ProcessMeter™

Double the Power. Half the Tools.

The Fluke 789 ProcessMeter is not just a digital multimeter; it’s a complete solution for process technicians. By combining a world-class 1000V True-RMS digital multimeter with a full-featured mA loop calibrator, Fluke has created a "double-duty" tool that eliminates the need to carry multiple devices into the field.

24V Loop Power

Built-in 24V loop power supply reduces the need for a separate power source during transmitter testing.

HART Compatibility

Includes a built-in 250-ohm resistor for HART communication, making it ideal for smart transmitters.

True-RMS Precision

Get accurate voltage and current readings even on complex, non-linear signals with True-RMS technology.

Technical Specifications

Function Range / Resolution Accuracy
Voltage DC Up to 1000 V 0.1% + 1
Voltage AC (True-RMS) Up to 1000 V 0.7% + 2
Current DC (mA) 30.000 mA 0.05% + 2
Current Source 0 - 20 mA or 4 - 20 mA 0.05%
Resistance Up to 40 MΩ 0.2% + 1
Frequency Up to 19.999 kHz 0.005% + 1

🚀 Why Choose the Fluke 789?

  • Reduced Downtime: Simultaneous mA and % scale readout means faster troubleshooting.
  • Superior Safety: Rated CAT IV 600V and CAT III 1000V.
  • Fluke Connect: Wireless logging and monitoring via the IR3000FC module.
  • Rugged Design: Built to withstand harsh industrial environments and 1-meter drops.

فلوك 789 — بروسيس ميتر ProcessMeter

فلوك 789 — جهاز ProcessMeter احترافي يُعد Fluke 789 ProcessMeter أداة متكاملة تجمع بين وظائف الملتيميتر الرقمي True-RMS وإمكانات معايرة حلقات التيار 4–20 mA، مما يجعله خياراً عملياً لفنيي الصيانة الصناعية واختبار إشارات التحكم في العمليات. يجمع بين ملتيميتر رقمي وكاليبراتور لحلقات 4–20 mA مزود بمصدر تغذية حلقة مدمج بجهد 24 فولت يدعم وضع HART مع مقاومة مدمجة بقيمة 250 أوم عند استخدام تغذية الحلقة مصمم وفق تصنيف أمان CAT III 1000V و CAT IV 600V

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FAQs

The Fluke 789 is a dual-purpose tool that combines a full-featured True-RMS digital multimeter with a 4-20 mA loop calibrator for industrial maintenance and troubleshooting.
Yes, unlike the 787 model, the Fluke 789 features a built-in 24V loop power supply, which eliminates the need for an external power source when testing transmitters.
Yes, it includes a built-in 250-ohm HART resistor that can be switched into the circuit when using the loop power mode, making it compatible with smart transmitters.
It is designed for high-voltage industrial environments with safety ratings of CAT III 1000V and CAT IV 600V, ensuring protection during heavy-duty electrical testing.
Yes, the Fluke 789 is Fluke Connect compatible through the use of the IR3000FC wireless connector, allowing you to log and share data via your smartphone.
Using four AA alkaline batteries, it typically lasts 140 hours for standard measurements or 10 hours when sourcing 12 mA into a 500-ohm load.