Product Details
What is it
The Turbimax CUS51D is a smart sensor for measuring turbidity and suspended solids in liquids, intended especially for water, wastewater, and related
industrial or utility uses.
It uses Memosens digital signal technology, meaning the sensor itself has digital
communication and calibration/data integrity built in.
Measuring principle
- It uses scattered light methods: both 90° and 135° scattering from particles in the
medium.
- It also includes a four-beam pulsed light system: two light sources + four receivers. Pulsed light helps
reduce interference, improve signal quality, and compensate for
fouling or window soiling.
- Depending on the turbidity / solids concentration, it switches
among different built-in models (pre-calibrated analytical models)
to adapt to low, medium, or high solids / turbidity.
Key features & benefits
- Wide measurement range:
- For formazine (standard turbidity standard): 0 to 4000 FNU (with display range up to 9999 FNU)
- For sludge / high solids: up to ~ 300 g/L (depending on medium)
- Robust & low maintenance:
- Self-cleaning options (air cleaning)
- Optical windows made of sapphire; housing in stainless steel (316L
etc.)
- Protection: IP68 for immersion (1 m water column for 60 days in 1N
KCl)
- Digital, pre-calibrated:
- Comes factory calibrated for form-azine; has multiple
pre-calibrated application models (kaolin, sludge etc.) to simplify
commissioning.
- Allows calibration up to 5 points, either in lab or in-situ.
- Flexible installation:
- Can be installed in situ (immersion), in retractable holders, or
via sample/flow cell setups.
- Different process connection standards (G1, NPT ¾″)
Technical specifications (summary)
Parameter | Specification |
Process temperature | −5 to +50 °C under normal operation (short-term up to ~80 °C) |
Ambient temperature | −20 to +60 °C |
Process pressure | Up to ~10 bar (absolute) for some versions; specifics depend on
configuration |
Protection rating | IP68 (immersion, water column 1 m for 60 days, under certain test
medium) |
Material of wetted parts | Stainless Steel 316L, sapphire windows, EPDM or equivalent O-rings |
Weight | ~ 0.7 kg (without cable) |
Typical applications
- Wastewater treatment: measuring solids in activated sludge basins,
recirculation, sludge handling.
- Drinking and process water: turbidity monitoring, flocculent
dosing.
- Utility / industrial effluents: tracking solids content, monitoring
filtration, etc.
Company Profile
Xi'an Xiyi Central Control Technology Co., Ltd. is an enterprise
engaged in the production, sales and R & D of industrial automation
instruments. The company is located in the ancient city of Xi'an, a
prosperous international city in China.
The company is mainly engaged in Rosemount and Yokogawa pressure
transmitters, differential pressure transmitters, liquid level
transmitters, temperature transmitters, mass flow meters and vortex
flow. Thermocouple, thermal resistance (armored, explosion-proof,
high temperature resistant, corrosion resistant, etc.), pressure
gauge, pressure gauge and bimetal thermometer. And Shanwu avp100 /
avp300 valve positioner, abb valve positioner, Siemens valve
positioner, YT valve positioner, Koso valve positioner, Shanwu
regulating valve and other products. The company has a strong
management team and brings together advanced technical talents at
home and abroad, which will provide you with better service.