Description
Fluke 985 Particle Counter Repair
The Fluke 985 is an air quality instrument – it measures the environmental parameters that indoor air quality and cleanroom work depend on, drawing a sample through an internal flow path onto a sensor. That flow path and the sensor in it are the parts that need attention.
June Company’s certified technicians repair the Fluke 985 for indoor air quality professionals, HVAC technicians, cleanroom teams, and facilities engineers. Every instrument is repaired at component level and verified against reference standards before it ships back, with the measured results documented.
Common Fluke 985 problems we fix
- Battery, charging or power faults.
- Display, keypad or interface faults.
- Sensor drifted or no longer responding.
- Sample pump weak or not running – flow rate is part of the measurement, so a tired pump produces readings that are wrong rather than absent.
- Flow rate out of specification.
- Optical chamber contaminated.
- Output or measurement drifted out of tolerance – corrected and verified against reference standards.
FAQs
Does the pump get serviced too? Yes. Pump condition directly affects the measurement, so restoring the sensor alone would not fix the instrument.
What if it is not economical to repair? We tell you in the quote. The evaluation is free and there is no obligation to proceed.
Every repair carries a 90-day parts-and-labor warranty, with a firm quote before any work begins. Email us or submit a service request.





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