MIK-PH7001 Flat pH sensor for flue gas desulfurization

The MIK-PH7001 is a flat pH electrode designed for pH measurement in flue gas desulfurization (FGD) and other harsh environments, such as lime slurry and other slurries.

A flat sensing surface has no protruding glass bulb, so it is generally less prone to breakage, fouling and abrasion in slurries and media containing solid particles. The flowing medium also helps keep the flat surface clean.

• Flue gas desulfurization (FGD) and lime slurry
• Industrial wastewater engineering
• Process measurements in electroplating plants, the paper industry and the drinks industry
• Wastewater containing oil
• Suspensions, varnishes and media containing solid particles

• Measuring range: 0–14 pH
• Zero potential point: 7 ± 0.5 pH
• Slope (conversion coefficient): >96%

• Internal impedance: 150–250 MΩ at 25 °C
• Practical response time: <1 min

Because the internal impedance is high, the electrode should be connected to a pH meter with a high-impedance input and a low-noise cable.

With general cables, the heat resistance is 5–80 °C. Please tell us your process temperature so we can confirm the suitable configuration.

The pressure resistance is 0.2 MPa. Please tell us your process pressure so we can confirm suitability.

The sensor has upper and lower 3/4" NPT pipe threads, allowing it to be mounted in suitable fittings or immersion assemblies.

NTC10K, Pt100 and Pt1000 are available. Choose the element that matches your pH meter.

The sensor uses a low-noise cable, which helps maintain a stable signal from the high-impedance electrode.

According to its specification, the MIK-PH7001 can be used in media containing fluorides (hydrofluoric acid) up to 1000 mg/L HF. For water with hydrofluoric acid in semiconductor or similar applications, see also the MIK-PH5014 hydrofluoric acid pH sensor, and send us your HF concentration for confirmation.

Yes. It is suitable for wastewater containing oil, suspensions, varnishes and media containing solid particles. Regular cleaning is recommended in these applications.

Asmik options include the MIK-PH6.5, MIK-PH8.0 and MIK-DC-P2. Please make sure the meter supports the selected temperature compensation element.

• Install the sensor where the slurry is representative and flowing, avoiding dead zones.
• Keep the sensing surface fully immersed at all times.
• Allow easy access for removal, cleaning and calibration.
• Route the low-noise cable away from power cables and motors.

Please follow the installation manual or contact our engineers for site-specific requirements.

Calibrate with standard buffer solutions, such as Asmik standard pH calibration solutions. In slurry and FGD applications, clean the sensing surface and check the calibration regularly, as deposits can affect the reading. Keep the sensing surface wet when not in use.

To help us select the correct configuration, please provide:

• Application and medium (e.g., FGD slurry, oily wastewater)
• Process temperature and pressure
• Fluoride (HF) concentration, if present
• Installation method and fittings
• Temperature compensation element and cable length
• Matching pH meter (if required)
• Quantity

Send your requirements to info@asmik.com or contact us via WhatsApp at +86 13325716921.