Description
Fluke 7109A-156 Calibration Bath Repair
The Fluke 7109A-156 (Hart Scientific) is a portable calibration bath (156-fluid configuration) — it heats/cools and stirs a liquid bath to precise, uniform, stable temperatures to calibrate temperature sensors in the lab and field. Its precision depends on the heater/cooling, the stirring system, the temperature control and reference, and the bath-fluid handling, which is where service focuses.
FlukeMeterRepair.com repairs and calibrates the Fluke 7109A-156 for temperature-calibration labs and pharma/process teams.
Common Fluke 7109A-156 problems we fix
- Uniformity faults — poor uniformity through the bath, the stirring/control corrected.
- Reference-thermometer faults — the built-in reference reading wrong, recalibrated against standards.
- Heater / cooling / stirrer faults — won’t reach setpoint or stir evenly, repaired.
- Controller drift — the controller reading the wrong setpoint, recalibrated.
- Leak or interface faults.
FAQs
My 7109A-156 uniformity or reference is off — fixable? Yes. Stirring, reference, and controller faults are repairable, then the bath is recalibrated so temperature is accurate, stable, and uniform, with a NIST-traceable certificate.
Is uniformity verified? Yes — stability and uniformity are checked against our reference standards.
Every repair includes NIST-traceable calibration and a 90-day parts-and-labor warranty. Email us or request service.






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