Online ORP Sensor

one.Online ORP Sensor application environment description

Online ORP Sensor is used to measure/control ORP at different temperatures and is widely used in water quality treatment, hydrological monitoring, wastewater treatment, and chemical industries.

It is used for environmental water quality detection and various high/low ionic strength water sample testing, which can meet the requirements of most industrial/environmental applications for online ORP measurement.

Signal output: RS485 (MODBUS-RTU).

The indicator electrode is a platinum sheet with high stability.

Internal signal isolation technology, strong anti-interference.

Good reproducibility, thermal stability, low drift, small size, fast response speed

Easy to install, simple, 3/4NPT pipe thread, easy to install or install in sinking or stable performance in pipes and tanks, long service life

IP68 waterproof standard

two.Online ORP Sensor Technical Parameters

three.Online ORP Sensor Installation and Electrical Connection

1.Installation

Note: The sensor cannot be installed inverted or horizontally when installed, and should be installed at least 15 degrees above the angle of inclination.

2.Electrical connection

The cable is a 5-core shielded wire, line sequence definition: brown-power cord (12~24VDC)

Black - Ground (GND) Green - 485B

Yellow-485A

Before powering on, carefully check the wiring sequence to avoid unnecessary losses caused by wiring errors.

Four.Online ORP Sensor Maintenance and Maintenance

When used for the first time or not after a long time, the sensitive bulb and reference fluid should be immersed in 3.3 mol/L KCI solution for more than 2 hours.

When using, wash and wipe dry with deionized water (or distilled water) to prevent impurities from being brought into the liquid to be tested.1/3 of the sensor should be inserted into the liquid to be tested.

The terminal part should be kept clean and dry.When the sensor is not in use, it should be cleaned.Insert the protective cover with 3.3mol/L KCI solution, or insert the sensor into a container with 3.3mol/L KCI solution.

Check whether the terminals are dry.If there are any stains, wipe them with anhydrous alcohol and continue to use them after drying.The sensor should avoid long-term soaking in deionized water, protein solutions, strong acid and alkali solutions, and acid fluoride solutions, and prevent contact with silicone grease.If the platinum sheet of the electrode is stained with grease, you can use degreased cotton to dip acetone or alcohol and gently wipe it clean.If the dirt is insoluble inorganic substances, you can use 30-50% hydrochloric acid to wipe it once a day with clean high-end toilet paper.

When the sensor has a long service life, it can be calibrated and corrected by matching the instrument.When the sensor is maintained and maintained by the above method, it means that the sensor has failed.Please replace the sensor.