Measure very low solids concentrations
The Cerlic CTX20/25LC Low Suspended Solids Sensor was developed to measure very low solids concentrations in Reuse water and final effluent in the municipal and industrial markets. The CTX20/25LC sensor is used to continuously measure solids that are greater than 0.88 microns. The Sensor can be calibrated for 0-10 ppm in increments of 0.1 ppm. New factory set temperature compensation value allows for very stable values all year round. Unit is zero calibrated at factory, so you only need to add a liquid calibration point in the field.

Automatic brush cleaning system
The CTX20/25LC is constructed of 316SS with sapphire lenses and supplied with 1″ npt couplings. The measuring principle is based on the ability of suspended particles to absorb and reflect NIR-light (near infrared), which is pulsed at 880 nm. The sensor has a 20 mm gap between the lenses, which produces a self-cleaning effect due to the increased velocity. The Sensor has a new temperature compensation value, which is set at the factory, along with a zero calibration value. This leads to very stable values, even with seasonal liquid temperature changes. The Meter is supplied with automatic brush cleaning system, which is activated every 30 minutes to remove any solids or algae build-up from the lens.

Precalibrated for easy start up
The sensor is precalibrated for quick and easy start-up. Reuse applications should have at least two sample values, one before and one after the sand filters to give a wide measuring range. Two CTX sensors (or other sensors in the X-series) can be connected to a single BB2 control box, which provides two 4-20 mA outputs. The BB2 box is built with the ability to add an interface board that allows connection to a fieldbus.

Benefits

• Easy to use
• Low maintenance
• Wide measuring range
• Stable & repeatable measuring principle