Fluke 789 ProcessMeter Digital Multimeter & Loop Calibrator
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Fluke 789 ProcessMeter™ Overview Summary
Overview of Fluke 789 ProcessMeter
The Fluke 789 ProcessMeter is an all-in-one digital multimeter and loop calibrator designed for precise measurement of voltage, current, and resistance, while also performing 4–20 mA loop calibration. Its robust construction and clear display provide reliable readings in industrial, commercial, and maintenance environments. The Fluke 789 ProcessMeter is ideal for electricians, process technicians, and engineers who need both multimeter functionality and loop calibration in a single device.
Key Features
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True-RMS digital multimeter and loop calibrator in one instrument.
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Built-in 24 V loop supply for offline transmitter testing.
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Selectable 250 Ω HART®-resistor built-in (no separate resistor needed).
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Dual-display: shows simultaneously mA and % of span for quick verification.
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Source/measure/simulate 0-20 mA or 4-20 mA with 1200 Ω drive capability at 20 mA.
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Frequency measurement to 20 kHz, Min/Max/Average/Hold/Relative modes.
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Safety rated for industrial use: IEC 61010-1, CAT IV 600 V / CAT III 1000 V.
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Wireless data logging ready (with optional IR3000FC module).
Specification
| Specification | Details |
|---|---|
| Brand | Fluke |
| Model | 789 ProcessMeter™ |
| Product Type | Digital Multimeter + mA Loop Calibrator |
| Voltage (DC) | 0-1000 V DC, resolution 0.1 mV-1.0 V, accuracy 0.1% +1 LSD |
| Voltage (AC True-RMS) | 0-1000 V AC, accuracy 0.7% +2 LSD |
| Current Source/Measure (mA) | 0-20.000 mA or 4-20 mA selectable; 1200 Ω drive at 20 mA |
| Loop Power Supply | 24 V built-in (on 789) |
| HART® Resistor | Built-in selectable 250 Ω |
| Frequency Measurement | Up to 19.999 kHz, accuracy 0.005% +1 LSD |
| Resistance | Up to 40 MΩ, accuracy 0.2% +1 LSD |
| Continuity | Beep for < ~100 Ω |
| Operating Temperature | –20 °C to +55 °C |
| Storage Temperature | –40 °C to +60 °C |
| Humidity (without condensation) | 95% up to 30 °C; 75% up to 40 °C; 45% up to 50 °C; 35% up to 55 °C |
| Safety Category | IEC 61010-1, CAT IV 600 V / CAT III 1000 V |
| Size (H×W×L) | 50 × 100 × 203 mm (1.97″ × 3.94″ × 8.00″) |
| Weight | Approx. 610 g (1.6 lbs) |
| Battery | Four AA alkaline batteries |
| Warranty | 3-year standard warranty |
Package Content
1 × Fluke 789 ProcessMeter™
1 × Set AC175 Alligator Clips
1 × TL71 Test Lead Set
4 × AA 1.5 V Alkaline Batteries (installed)
1 x Quick Reference Guide / User Manual
** (Optional) IR3000FC Wireless Module — sold separately
💡 Why Choose Fluke
Fluke is a world-renowned leader in test and measurement instruments, trusted by professionals across industries for reliability, accuracy and durability. The 789 ProcessMeter™ is engineered to help instrumentation and electrical technicians do more while carrying less, expanding troubleshooting capability with a single tool. With top-end safety ratings, HART® support, built-in loop power, and rugged design, it’s built for the field and for fast, trusted calibration and diagnostics.
Order by 4PM to get delivered next working day! We use 24 hours service with carriers in most cases so that you can get your order delivered on time.
Free delivery for total orders above RM500, otherwise additional charges costs are calculated at checkout based on your order’s weight and delivery location.
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Please notify us within 14 calendar days of receiving your product to request a free exchange or full refund, if eligible. We will cover all return shipping costs, and no restocking fees will apply in this case.
Requests made after 14 days may be accepted at our discretion and will be subject to a 10% restocking fee. Techno Tools & Equipment reserves the right to reject any return request found to be ineligible.
Further details please click here for more info.