RPA I & II fluorimeter repair, service & calibration.
Rematek keeps your RPAI and RPAII fluorimeters reading precisely — diagnostics, optical repair, calibration, and parts from an authorized Modern Water service representative with 30+ years on these instruments.
Authorized Modern Water service representative for 30+ years — Fallbrook, CA

What Rematek services on RPA I & II fluorimeters
Every RPA fluorimeter is diagnosed, repaired, and calibrated by an authorized Modern Water service representative with three decades of hands-on experience.
Diagnostics & optical repair
Full fault diagnosis and component-level repair of RPAI and RPAII fluorimeters — optics, light source, and electronics — restoring dependable operation.
Precision calibration
Calibration and performance verification of the fluorescence measurement path so your readings stay precise and repeatable.
Parts & ongoing support
Replacement parts and direct support to keep your RPA fluorimeters in service and reading accurately for years.
Transparent RPA fluorimeter service pricing
Straightforward rates from an authorized service representative — quoted before any work begins.
Component-level diagnosis and optical repair of RPA I & II fluorimeters — optics, light source, and electronics.
First hour covers handling and troubleshooting and is non-refundable — but it rolls into the repair if you proceed. Any parts required are additional.
Fully certified cleaning, calibration, and performance verification of the fluorescence measurement path with certification documentation.
Includes certification documentation and most required repairs. Any parts required are additional.
- Turnaround
- 72 hours — fast turnaround is a priority, barring unforeseen issues, which are rare.
- Return shipping
- Your instrument is returned on Rematek's FedEx account, with the shipping cost added to your invoice — unless you'd prefer it returned via your own FedEx account or shipping method.
All Microtox, Deltatox & RPA service in one place
See the full range of servicing and repair Rematek provides across every Microtox, Deltatox, and RPA instrument — repair, cleaning & calibration, pricing, and turnaround.
RPA fluorimeter service questions
- Who repairs RPA I & II fluorimeters?
- Rematek, LLC services and repairs RPAI and RPAII fluorimeters. Owner Mark Woodward is an authorized Modern Water service representative with over 30 years of experience, based in Fallbrook, California.
- Do you calibrate RPA fluorimeters?
- Yes. Rematek calibrates and verifies the optical measurement path of RPA I & II fluorimeters so your fluorescence readings stay precise and reliable.
- Do you service out-of-warranty RPA units?
- Yes. Rematek services in- and out-of-warranty RPAI and RPAII fluorimeters, including older instruments still in active use.
- How do I request RPA fluorimeter service?
- Contact Rematek with your instrument and the symptoms you're seeing. Rematek assesses the fault and the work required before any service begins.

“Modern Water is pleased to announce it has appointed Rematek, LLC as an authorized service representative for its Microtox M500 and Deltatox acute toxicity analyzers.”
Rematek is a contract manufacturing specialist for environmental science technologies in Fallbrook, CA. Mark Woodward, the owner and operator of Rematek, has been an authorized service representative for over 30 years.
Ready to get your analyzer serviced?
Tell us what you're running and what it needs. Rematek will get it back to peak precision.
Request Service