Fluke 789 Loop Calibration Process Meter
Fluke 789 Loop Calibration Process Meter - Image 2
Fluke 789 Loop Calibration Process Meter - Image 3

Fluke 789 Loop Calibration Process Meter

Fluke

£1,175.00 / £1,410.00 incl VAT

  • Compact digital multimeter and mA loop calibrator solution
  • Full-featured mA loop calibrator with built-in 24v Loop Power
  • Quickly and easily troubleshoot every part of a control loop
  • Large, bright dual-measurement display

In stock

Free Mainland GB Delivery on orders over £150 Fast Dispatch from our UK Warehouse Price Match Available on Many Products Need Advice? Call 01945 738112
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SKU: FLU-789-1 Category: Tag: Brand:

Description

Fluke 789 Loop Calibration Process Meter

The Fluke 789 ProcessMeter is a powerful troubleshooting tool designed for electricians and instrumentation professionals working with process control systems. Combining the capabilities of a full-featured loop calibrator with a high-performance digital multimeter, it allows users to measure, source, and simulate 4–20 mA signals while also performing a wide range of electrical measurements.

Designed to simplify field work, the meter includes a built-in 24 V loop power supply for transmitter testing, removing the need to carry a separate power source. A selectable 250-ohm HART® resistor is also integrated, allowing users to work with HART communication devices without additional accessories. The large dual display with adjustable backlighting shows multiple readings simultaneously, helping technicians diagnose faults quickly and efficiently.

The meter also offers the option to add wireless data logging using the Fluke Connect system (via the optional IR3000FC module), allowing measurements to be logged and reviewed remotely on a smartphone. With its robust construction, high measurement accuracy, and advanced loop troubleshooting capabilities, this ProcessMeter is ideal for maintenance, commissioning, and diagnostics in industrial environments.

Key Features

  • Combines a digital multimeter and loop calibrator in one device
  • Measure, source, and simulate 4–20 mA signals for process control testing
  • Built-in 24 V loop power supply for transmitter testing
  • Integrated 250-ohm HART® resistor eliminates the need for a separate resistor
  • Dual display with two levels of backlighting for clear readings in low light
  • SpanCheck function with 0% and 100% buttons for quick switching between 4 mA and 20 mA sourcing
  • Displays mA and percentage of span simultaneously for faster diagnostics
  • Frequency measurement up to 20 kHz
  • Min, Max, Average, Hold, and Relative measurement modes
  • Diode test and continuity beeper for electrical troubleshooting
  • 0.1% DC voltage accuracy and 0.05% DC current accuracy
  • Manual step, 25%, 100%, coarse, fine, auto step, and auto ramp functions
  • CAT III 1000 V / CAT IV 600 V safety rating
  • Optional wireless logging with Fluke Connect (requires IR3000FC module)

What’s Included

  • Fluke 789 ProcessMeter
  • AC175 alligator clips (1 set)
  • TL71 test lead set (1 set)
  • 4 × AA 1.5 V alkaline batteries (installed)
  • Quick reference guide
  • 3-year warranty

Click Here for full data sheet

Specifications
Current Measurement
Range: 0-1 A AC or DC
Resolution: 1 mA
Accuracy: 0.2% 2 LSD (DC)
Range: 0-30 mA
Resolution: 0.001 mA
Accuracy: 0.05% 2 LSD
Current Sourcing
Range: 0-20 mA or 4-20 mA
Resolution: 0.05% of span
Drive Capability: 24 V Compliance or 1200 Ω @ 20 mA
Frequency
 to 19.999 kHz, 0.005% 1 LSD
Continuity
 Beeps for resistance < 100 Ω
Voltage measurement
Range: 0-1000 V AC (true-rms) or DC
Resolution: 0.1 mV to 1.0 V
Accuracy: 0.1% Rdg 1 LSD (VDC)
Resistance measurement
 to 40 MΩ, 0.2% 1 LSD
Diode test
 2.0 V shows diode voltage drop
Display current and % of span
 Yes
Auto step, auto ramp
 Yes

 

Environmental Specifications
Operating Temperature
 -20 ºC to 55 ºC
Storage Temperature
  -40 ºC to 60 ºC
Humidity (Without Condensation)
 95% up to 30 ºC
 75% up to 40 ºC
 45% up to 50 ºC
 35% up to 55 ºC
Temperature Coefficient
 0.05 x (specified accuracy) per ºC (for temperatures < 18 ºC or > 28 ºC)

 

Safety Specifications
Electrical Safety
 Designed in accordance with IEC 1010-1, ANSI/ISA S82.01-1994 and CAN/CSA C22.2 No. 1010.1-92
Overvoltage category
 IEC 1010-1 CAT III 1000 V
 IEC 1010-1 CAT IV 600 V
Maximum voltage
 1000 V rms

 

Mechanical & General Specifications
Size
 50 x 100 x 203 mm (1.25″ H x 3.41″W x 7.35″ L)
Weight
 610 g (1.6 lbs)
Batteries
 4 AA Alkaline batteries
Warranty
 3 years
Battery Life
 140 hours typical (measurement), 10 hours typical (sourcing 20 mA)
Shock & Vibration
 Random, 2 g, 5-500 Hz
 1 meter drop test
  • Fluke 789 ProcessMeter
  • AC175 alligator clips (1 set)
  • TL71 test lead set (1 set)
  • 4 × AA 1.5 V alkaline batteries (installed)
  • Quick reference guide
  • 3-year warranty

🚚 Testersmans Shipping Policy

Free Mainland GB Delivery Over £150

We offer free delivery on most mainland Great Britain orders over £150 (ex VAT).
This applies across England, Wales, and most of Scotland, excluding certain remote or offshore postcodes.

If your order total falls just short of £150, or you’re a returning customer, feel free to contact us — we may be able to offer a discount code or delivery workaround.
📞 01945 738112 | ✉️ [email protected]

📦 UK Delivery Options

We work with both Royal Mail and DHL to offer reliable and flexible delivery across the UK:

  • Royal Mail – Best suited for lighter parcels and for customers in remote regions, including the Highlands, Islands, and Northern Ireland.
  • DHL – Ideal for most mainland UK orders, providing fast, tracked delivery and excellent reliability for time-sensitive shipments.

Our checkout system automatically displays the available delivery services for your postcode and order weight, ensuring you always see the most suitable options.

Note: Heavy, bulky, or freight-only orders will be charged separately.
Our website is designed for quick, transactional purchases rather than bulk or palletised orders.
Please contact us in advance for a tailored freight quotation if your order falls into this category.

⏱ Dispatch & Delivery Timing

We aim to dispatch all in-stock orders promptly, but delivery depends on both when you order and which service you select.

  • UK orders: placed by 2:00 PM Monday–Friday are usually dispatched the same day.
  • International orders: placed by 2:00 PM Monday–Thursday are usually dispatched the same day.

Orders placed after these times are processed the next working day. This means delivery may occur the following day or later, depending on the courier and service selected.

Once dispatched, your chosen delivery service determines how quickly your parcel arrives:

  • Standard services We use Royal Mail Tracked 24 or DHL Parcel as our ‘Standard’ services. They are not guaranteed to arrive next working day.
  • Premium services (e.g. Royal Mail Special Delivery or DHL by Noon) offer guaranteed delivery windows.

If your order is time-sensitive, we strongly recommend choosing a guaranteed service or contacting us before ordering to confirm availability.

Please note: For logistical reasons, we may occasionally adjust the delivery method selected at checkout. For example, smaller items may be better suited to letterbox-friendly packaging or may be at greater risk of delay or loss via certain services. We actively monitor courier and postal service disruptions—including strikes and delays—and may modify shipping arrangements to help ensure timely and secure delivery.

📅 Busy Periods & Delays

We always aim to dispatch promptly, but delivery times may be affected by:

  • Seasonal demand (e.g. Christmas, bank holidays, or industry shutdowns)
  • Courier network delays outside our control
  • Supplier lead times or calibration requirements for certain equipment

If your delivery is time-critical, please contact us before ordering so we can confirm stock and courier availability.

🌍 International Shipping

We ship worldwide using UPS Express Saver® and other trusted global courier partners. All international shipments are tracked and generally dispatched Monday to Thursday to ensure smooth customs clearance and transit.

Estimated delivery times:

  • Europe: 1–2 working days
  • North America: 2–3 working days
  • Asia-Pacific & Rest of World: 3–5 working days

Delivery times vary depending on location, customs clearance, and local courier performance.

💰 Taxes, Customs & Import Duties

International customers are responsible for any applicable taxes, customs charges, or import duties.
These are not included in our product or shipping prices.

Your courier will typically provide a secure payment link for any import charges once your parcel reaches customs.
If import fees are refused and the parcel is returned, we will issue a refund minus all incurred shipping and return costs.

📍 Using Your Own Courier

If you would prefer to arrange collection via your own courier (UK or international), please contact us before placing your order to coordinate collection from our Wisbech warehouse.

📝 Important Notes

  • Please ensure your delivery address and contact number are correct at checkout.
  • Undelivered parcels may be returned to us after a short holding period.
  • Redelivery or return fees may apply, even if your order originally qualified for free delivery.
  • By placing an order, you confirm your understanding and acceptance of this policy.

Additional information

Weight650 g

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