Description
Fluke 7109A-P-156 Calibration Bath Repair
The Fluke 7109A-P-156 (Hart Scientific) is a portable calibration bath (P/156 configuration, with the pump fluid option) — 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/pump system, the temperature control and reference, and the bath-fluid handling, which is where service focuses.
FlukeMeterRepair.com repairs and calibrates the Fluke 7109A-P-156 for temperature-calibration labs and pharma/process teams.
Common Fluke 7109A-P-156 problems we fix
- Fluid leaks — leaks in the bath vessel, pump, or fittings, repaired.
- Pump / stirrer faults — the circulation pump or stirrer not running, repaired.
- Heater / cooling faults — won’t reach setpoint, repaired.
- Controller / reference drift — the controller or reference reading the wrong setpoint, recalibrated against standards.
- Interface faults.
FAQs
My 7109A-P-156 is leaking or won’t circulate — fixable? Yes. Leak, pump, 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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