Supmea pH-7001 Flat Membrane Industrial pH Sensor

The Supmea pH-7001 is an industrial-grade analytical sensor engineered for high-fouling environments where standard glass bulb electrodes fail. Designed specifically for industrial wastewater treatment, desulfurization towers, and lime slurry monitoring, this sensor utilizes a flat-surface measurement interface to minimize mechanical damage and prevent the accumulation of solids. Field Summary: In high-solid streams or sludge tanks, a standard spherical bulb acts as a collection point for debris and scaling. The pH-7001 eliminates this failure point with a flush-mounted membrane that allows the process flow to provide a natural scouring action, significantly extending the interval between manual cleanings. Metrological Integrity & Thermal Compensation

While industry standards often default to PT100 elements, we stock the pH-7001 with integrated PT1000 RTDs as standard. For the typical 2-wire cable runs found in industrial plants, the higher base resistance of the PT1000 provides ten times better immunity to uncorrected measurement errors caused by cable lead resistance. This ensures that your temperature-compensated pH slope is more accurate. Operational Features

- Flat Hidden Bulb Design: The sensitive glass membrane is recessed into the housing, protecting it from physical impact while providing a self-cleaning profile in turbulent flows.
- PPS (Polyphenylene Sulfide) Housing: Constructed from high-performance thermoplastic for superior chemical resistance and structural stability in aggressive industrial effluents.
- Teflon Ring Junction: Utilizes a large-area PTFE liquid junction to resist poisoning from sulfides and minimize clogging from suspended solids.
- Universal Compatibility: This sensor has standard analog output characteristics following the Nearnst equation. This makes it compatible with any conventional pH transmitter. Technical Specifications Parameter Specification Measurement Range 2 to 12 pH Temperature Range 0 to 60 °C Pressure Resistance ≤ 0.4 MPa (4 Bar) Temperature Compensation PT1000 RTD Housing Material PPS (Polyphenylene Sulfide) Reference System Ag/AgCl with Teflon Ring Junction Membrane Resistance ≤ 250 MΩ Installation Thread 3/4" NPT Cable Interface Shielded low-noise analog lead

Installation Recommendation

For optimal response times and to prevent air entrapment, the sensor should be installed at an angle of at least 15° from the horizontal. For pipe-mounted applications, ensure the flat membrane is oriented to face the flow to maximize the self-cleaning effect of the process liquid.