Detailed specifications, features, and application guidance for Thornton M300 analytical sensors covering conductivity, pH/ORP, dissolved oxygen and ozone.
The M300 series provides a range of analytical sensors for pure water treatment, semiconductor rinsing, power‑plant chemistry and pharmaceutical water monitoring. Sensors include conductivity/resistivity, pH/ORP, dissolved oxygen and dissolved ozone, each with dedicated housings and connector options.
The document lists technical specifications, material options, installation guidelines, and recommended cable lengths. It also covers sensor selection criteria such as measurement range, mounting type, pipe size, chemical compatibility and temperature limits.
| Temperature Accuracy | ± 0.1 °C at 25 °C |
|---|---|
| Maximum Cable Length | 200 ft (60 m) (50 ft for 244‑Series) |
| Flowrate Range (with housing) | 100 – 500 mL/min |
| Operating Temperature Range | 5 – 50 °C (41 – 122 °F) |
| Measurement Accuracy (Ozone) | ± 2% reading or 3 ppb, whichever is greater |
The M300 series includes conductivity/resistivity, pH/ORP, dissolved oxygen, dissolved ozone and flow sensors.
VP conductivity sensors are limited to 50 ft (15.2 m).
The pHure sensor operates from 0 °C to 80 °C (short‑term up to 100 °C) and can withstand up to 100 psig.