Description
Fluke 6109A-P-156 Calibration Bath Repair
The Fluke 6109A-P-156 (Hart Scientific) is a portable calibration bath (P/156 configuration, with the pump fluid option) — it heats and stirs a liquid bath to precise, uniform, stable high temperatures to calibrate temperature sensors in the lab and field. Its precision depends on the heater, the stirring/pump system, the temperature control and reference, and the bath-fluid handling, which is where service focuses.
FlukeMeterRepair.com repairs and calibrates the Fluke 6109A-P-156 for temperature-calibration labs and pharma/process teams.
Common Fluke 6109A-P-156 problems we fix
- Heating-element burnout — won’t reach the setpoint, the heater replaced.
- Pump / stirrer faults — the circulation pump or stirrer not running, repaired.
- Controller / reference drift — the controller or reference reading the wrong setpoint, recalibrated against standards.
- Fluid-leak faults — leaks in the vessel, pump, or fittings, repaired.
- Interface faults.
FAQs
My 6109A-P-156 heater burned out or it’s leaking — fixable? Yes. Heater, pump, and leak 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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