Description
Fluke 985 Particle Counter Repair
The Fluke 985 is a handheld airborne particle counter — it draws an air sample through an optical sensor and counts/sizes particles across multiple channels for indoor air quality, cleanroom monitoring, and HVAC investigation. Its accuracy depends on the laser/optical particle sensor, the sample pump and flow control, and the measurement electronics, which is where service and calibration focus.
FlukeMeterRepair.com repairs and calibrates the Fluke 985 for IAQ, cleanroom, and HVAC teams.
Common Fluke 985 problems we fix
- Bluetooth / connectivity faults — the wireless module not pairing or transferring data, repaired.
- Optical-sensor / count faults — inaccurate particle counts or sizing from the optical sensor, serviced and recalibrated.
- Sample-pump / flow faults — the pump not drawing the correct sample flow, repaired (flow is critical to count accuracy).
- Display or interface faults — repaired.
- Won’t power on or hold a charge — battery/power faults.
FAQs
My 985 counts or Bluetooth are off — fixable? Yes. Sensor, pump, and connectivity faults are repairable, then the counter is recalibrated (including flow) so particle counts are accurate, with documented results.
Is the flow rate verified? Yes — flow and counting are checked against our standards.
Every repair includes calibration verification and a 90-day parts-and-labor warranty. Email us or request service.
Amy Kolson –
June Company actually used this Particle Counter for our business laboratories and clean room and generated reports for us.