Status: Current Production — we repair and calibrate all Fluke loop calibrators (705, 707, 707Ex, 709, 709H).
Common Fluke Loop Calibrator Problems We Fix
- mA output out of tolerance or drifting
- No output / won’t source or simulate 4–20 mA
- Inaccurate measurement readings
- Test lead jacks worn / intermittent connections
- Won’t power on / battery compartment corrosion
- HART communication not working (709 / 709H)
- Display contrast loss or dead display
Don’t see your exact problem? We repair all Fluke loop calibrator faults — email us and describe what’s happening.
Fluke Loop Calibrator Models We Repair
| Model | Description | Service |
|---|---|---|
| Fluke 705 | Basic loop calibrator — source, simulate, measure 4-20 mA | Request Repair |
| Fluke 707 | Loop calibrator with 0.015% accuracy and 1-5 V range | Request Repair |
| Fluke 707Ex | Intrinsically safe loop calibrator for hazardous areas | Request Repair |
| Fluke 709 | Precision loop calibrator with HART communication | Request Repair |
| Fluke 709H | Loop calibrator with HART and built-in 250 Ω resistor | Request Repair |
How to Send In Your Fluke Loop Calibrator
- Tell us what’s wrong. Email us or submit a service request with your model and the problem.
- Ship it to us. Send your unit from anywhere in the US — we provide prepaid shipping labels on request.
- Get a firm quote. We evaluate it and send a no-obligation repair quote. No work is done until you approve.
Email: info@junecompany.com | All repairs include NIST-traceable calibration and a 90-day parts-and-labor warranty.
Frequently Asked Questions
How much does Fluke loop calibrator repair cost?
Repairs start with a flat evaluation fee that’s credited toward your repair cost. After we diagnose the unit, you get a firm quote before any work begins — no surprises.
How long does the repair take?
Most 705, 707, and 709 repairs are finished within 5–10 business days of arrival, with expedited turnaround available if you need it back fast.
My calibrator’s mA output is out of tolerance — can you fix it?
Yes. mA source drift from aging precision components is the most common loop calibrator repair. We correct the cause and verify source, simulate, and measure functions against our reference standards.
The HART communication on my 709/709H stopped working — can you repair it?
Yes. HART modem faults that prevent smart-transmitter communication are a common 709/709H repair, restored so you can configure and read transmitters again.
Do you repair the intrinsically safe 707Ex?
Yes. We repair and recalibrate the 707Ex. Because it’s rated for hazardous areas, we verify it returns to its specified performance, documented on a NIST-traceable certificate.
Just need calibration, not a repair?
We do both. If your loop calibrator works but is due for recalibration, we provide NIST-traceable calibration with a documented certificate against the manufacturer’s published specifications.
What if my exact model isn’t listed?
We service every Fluke loop calibrator configuration. If your model isn’t in the table, pick the closest match or email us — the process is the same.
Who uses Fluke loop calibrators?
Process instrumentation technicians, industrial maintenance, oil and gas field operations, pharmaceutical process control, and HVAC control technicians rely on the 705, 707, and 709 for 4–20 mA loop work.
See also our Fluke process calibrator repair, Fluke pressure calibrator repair, and Fluke temperature calibrator repair pages, or browse all calibrator repair services.
