Description
Fluke 6330 Calibration Bath Repair
The Fluke 6330 (Hart Scientific) is a precision calibration bath — it heats and stirs a liquid bath to precise, uniform, stable temperatures to calibrate temperature sensors, including multiple and odd-shaped probes with deep immersion. Its precision depends on the heater, the stirring system, the temperature control and reference, and the fluid handling, which is where service focuses.
FlukeMeterRepair.com repairs and calibrates the Fluke 6330 for temperature-calibration labs.
Common Fluke 6330 problems we fix
- Immersion-depth / uniformity faults — poor uniformity along the immersion depth, the stirring/control corrected.
- Heater faults — won’t reach the setpoint, the heater repaired.
- Stirrer faults — poor circulation from a failing stirrer, repaired.
- Controller / reference drift — the controller or reference sensor reading the wrong setpoint, recalibrated against standards.
- Leak or interface faults.
FAQs
My 6330 uniformity is off — fixable? Yes. Stirring, heater, and controller faults are repairable, then the bath is recalibrated so temperature is accurate, stable, and uniform through the immersion depth, 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.






Jeff Gaines –
Our Hart Scientific 6330 calibration bath suddenly died with no power. Tried everything so we decided to send it in for repair and they did a great job with the repair and communications were spot on.