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DABECO MST1 Chlorite Sensor

DABECO MST1 Chlorite Sensor

DABECO MST1 Chlorite Sensor

Product catalog summary
Overview: The MST1 indicator is designed for measuring chlorite levels in various water applications, including drinking water, swimming pool water, service water, and process water. It supports different chlorine dioxide production methods such as the Acid/chlorite-method and Chlorine/chlorite-method.
Measuring System: The device uses a membrane-covered, amperometric potentiostatic 3-electrode system. It is available in analog and digital versions, with the digital version offering galvanically isolated electronics.
Temperature and Pressure Specifications: The MST1 operates within a measuring water temperature range of 0 to +40 °C and an ambient temperature range of 0 to +55 °C. It features automatic temperature compensation and can handle a maximum working pressure of 0.5 bar without a retaining ring, and up to 5 bar with a retaining ring in TARAflow FLC.
Flow Rate and pH Range: The recommended flow rate is approximately 15-30 L/h, and it operates effectively within a pH range of 6 to 9.
Calibration and Maintenance: Calibration is performed at the device by determining the chlorite concentration analytically. Regular maintenance includes weekly signal checks, annual membrane cap changes, and electrolyte replacement every 3 to 6 months.
Electrical Connections: The device offers various connection options, including mV, Modbus, and 4-20 mA versions, with different plug-on flange and terminal configurations.
Technical Data: The MST1 provides a measuring range of 0.005 to 2.000 ppm with a resolution of 0.001 ppm. It supports both analog and digital signal processing, with specific configurations for each output type.
Spare Parts and Options: Spare parts include membrane caps, electrolytes, emery, and O-rings. An optional retaining ring is available for operations requiring higher pressure tolerance.
Compliance: The MST1 is EMC tested and RoHS compliant, ensuring it meets relevant safety and environmental standards.
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Catalog excerpts

DABECO MST1 Chlorite Sensor-3

Option 1: Retaining ring When operating with pressures >0.5 bar in TARAflow FLC Dimensions retaining ring 29 x 23.4 x 2.5 mm, slitted, PETP Different positions for groove Spare Parts Type (Subject to technical changes!)

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DABECO MST1 Chlorite Sensor-4

Data Sheet January 2025 (EN) V18 Technical Data 1. MST1 (analog output, analog internal signal processing) Measuring range Output Output resistance Nominal slope Voltage supply Galvanic isolation required in the measuring device/controller ** Function of wires: PIN1: measuring signal PIN2: +U PIN3: -U PIN4: signal GND PIN5: n. c. Function of wires: PIN1: measuring signal PIN2: +U PIN3: power GND PIN4: signal GND PIN5: n. c. concentration tested and approved up to 2 ppm (Subject to technical changes!

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DABECO MST1 Chlorite Sensor-5

(Subject to technical changes!) concentration tested and approved up to 2 ppm

 Open the catalog to page 5
DABECO MST1 Chlorite Sensor-6

* concentration tested and approved up to 2 ppm ** (Subject to technical changes!)

 Open the catalog to page 6
DABECO MST1 Chlorite Sensor-7

Data Sheet January 2025 (EN) V18 4. MST1 4-20 mA (analog output, analog internal signal processing) 4.1 Electrical connection: 2 pole terminal clamp Measuring range Output Output resistance Nominal slope Voltage supply Galvanic isolation required in the measuring device/controller ** Recommended: Round cable  4 mm 2 x 0.34 mm² * concentration tested and approved up to 2 ppm ** (Subject to technical changes!

 Open the catalog to page 7
DABECO MST1 Chlorite Sensor-8

* concentration tested and approved up to 2 ppm (Subject to technical changes!)

 Open the catalog to page 8

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*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.
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