Microtox Model 500 repair, service & calibration.
Rematek keeps your benchtop Microtox Model 500 acute toxicity analyzer accurate and in service — factory-level diagnostics, 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 the Microtox M500
Every Microtox Model 500 is diagnosed, repaired, and calibrated by an authorized Modern Water service representative with three decades of hands-on experience.
Diagnostics & repair
Full fault diagnosis and component-level repair of the M500 — optics, electronics, and temperature control — restoring dependable, factory-level operation.
Precision calibration
Calibration and performance verification of the acute toxicity measurement path so your Microtox readings stay accurate and repeatable.
Parts & ongoing support
Replacement parts and direct support to keep your Microtox Model 500 running long after standard support windows close.
Transparent Microtox M500 service pricing
Straightforward rates from an authorized service representative — quoted before any work begins.
Component-level diagnosis and repair of the Microtox Model 500 — optics, electronics, and temperature control.
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 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.
Cleaning & calibration ships with a Certification of Quality.
A certified cleaning and calibration comes back with a signed Certification of Quality — your formal report and proof of service. It declares the unit meets or exceeds its original design and test parameters, and documents the standards and functional checks behind that result. A repair-only job is different: if you simply need the instrument diagnosed and running again, that's exactly what we do — no calibration certificate is issued.
- Calibration traceability
- NIST-traceable standards
- Electromagnetic compatibility
- EMC Directive 89/336/EEC
- Electrical safety
- Low Voltage Directive 73/23/EEC
All measuring instruments are calibrated by industrially accepted methods with accuracies traceable to NIST. Hard copies of calibration and test records are kept perpetually and are available on request.
What's tested and documented
- Cool block temperature
- Reagent block temperature
- Computer communication
- Mode differentiation
- Photomultiplier light response
- Read and set functions
- Full functionality
All Microtox service & repair in one place
See the full range of Microtox water analyzer servicing and repair Rematek provides across every instrument — repair, cleaning & calibration, pricing, and turnaround.
Need cleaning & calibration only?
The factory-channel cleaning and calibration service for the Microtox M500 and Deltatox was discontinued. Rematek offers it directly — see what's included and how it keeps your results compliant.
Weighing a refurbisher or third-party repair?
See how a factory-authorized Modern Water representative differs from general equipment brokers like York Scientific — and where each option fits.
Microtox M500 service questions
- Who repairs the Microtox Model 500 analyzer?
- Rematek, LLC services and repairs the Microtox Model 500. Owner Mark Woodward has been an authorized Modern Water service representative for over 30 years and works on these instruments directly from Fallbrook, California.
- Do you calibrate the Microtox M500?
- Yes. Rematek performs calibration and performance verification on the Microtox M500 so your acute toxicity readings stay accurate and your results remain defensible.
- Do you service out-of-warranty Microtox units?
- Yes. Rematek services in- and out-of-warranty Microtox Model 500 analyzers, including older units that the original manufacturer channel no longer supports.
- How do I request service for my Microtox M500?
- 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