Viomax CAS51D - the smart nitrate & SAC sensor with fast response time and chemical-free handling.

Digital nitrate or SAC sensor Viomax CAS51D

Memosens sensor for optical measurement of nitrate, SAC, COD_eq, TOC_eq, BOD_eq or DOC_eq

CAS51D

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Thanks to different available optical path lengths, it covers a wide measuring range.

Viomax CAS51D provides you with continuous measured values and is low-maintenance.

Viomax CAS51D is available as nitrate sensor and as sac sensor that can also measure equivalents of several sum parameters.

Specs at a glance

Measurement range

0.01 to 20 mg/l / 0.1 to 50 mg/l NO3-N
0.04 to 80 mg/l / 0.4 to 200 mg/l NO3
0 to 50 1/m / 0 to 250 1/m / 0 to 1000 1/m SAC
0 to 75 mg/l / 0 to 375 mg/l / 0 to 1500 mg/l COD/BOD (254nm)
0 to 30 mg/l / 0 to 150 mg/l / 0 to 600 mg/l TOC/DOC (254nm)
Process temperature

5 to 50°C (41 to 120 °F)

See all specifications

Field of application

Viomax CAS51D is a smart sensor that allows unattended operation in a wide range of process conditions in water, wastewater and utilities. It ensures continuous online measurements without any chemicals and it is extremely robust as well as low-maintenance thanks to its self-cleaning design. You can select the CAS51D as nitrate sensor or as sensor for SAC and several sumparameters. Thanks to Memosens digital technology, Viomax CAS51D offers high process and data integrity and is easy-to-use.

Viomax CAS51D measures nitrate, SAC or several sum parameters in drinking water, process water and wastewater applications as well as in the utilities sector:

Organic load or nitrate in inlet and outlet
Determination of CODeq, TOCeq, BODeq or DOCeq
Monitoring, control and optimization of treatment processes
Nitrate monitoring in the aeration basin and denitrification stage

Benefits

Cost-effective: Easy, chemical-free handling is safe, environmentally friendly and saves on operational expenditure.
Extremely fast response time: Measured value processing in the sensor provides reliable real-time process information.
Fast and easy commissioning: Sensor comes precalibrated and preconfigured ex factory.
Enables unattended plant operation: Intelligent design and automatic air-cleaning functionality maximize availability and minimize maintenance.
Perfect adaption to open basins: Fast and flexible sensor positioning with Flexdip CYH112 holder and CYA112 assembly system.
Perfect adaption to pipes: Various flow cells allow easy plant integration.

Get this product as part of a bundle

Bundle
Complete measuring loop for SAC in the wastewater outlet

Save time with this pre-configured package for optical SAC measurement that ensures reliable process monitoring
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Simple products
Easy to select, install and operate

Technical excellence

Simplicity

What is FLEX?

Standard products
Reliable, robust and low-maintenance

Technical excellence

Simplicity

What is FLEX?

High-end products
Highly functional and convenient

Technical excellence

Simplicity

What is FLEX?

Specialized products
Designed for demanding applications

Technical excellence

Simplicity

Variable

What is FLEX?

FLEX selections	Technical excellence	Simplicity
F L E X Fundamental selection Meet your basic measurement needs	Technical excellence	Simplicity
F L E X Lean selection Handle your core processes easily	Technical excellence	Simplicity
F L E X Extended selection Optimize your processes with innovative technologies	Technical excellence	Simplicity
F L E X Xpert selection Master your most challenging applications	Technical excellence	Simplicity Variable

Learn more about the FLEX selections

Extended selection

High-end products
Highly functional and convenient

Technical excellence

Simplicity

What is FLEX?

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Predecessor

Stamosens CSS70

Stamosens CNS70

Success stories

Monitoring water quality in fish farms

Optimal water quality in fish farming with the Endress+Hauser monitoring solution with the latest measurement technology and data management
Read the full story
TOCeq measurement in wastewater treatment

TOC measurements are often performed using analyzers that require expensive reagents. The CAS51D enables the plant operators to comply with WHO requirements and guarantees tight measurement intervals.
Read the full story
Conductivity system optimises production of biosurfactants

Holiferm produces sustainable biosurfactants using a patented gravity separation fermentation process. The company was seeking a way to automate the measurement of the critical phase separation step.
Read the full story
Safe phosphate elimination with minimal effort

Thanks to Endress+Hauser the Wastewater treatment plant in Breuberg meets legal requirements and ensures safe phosphate elimination.
Read the full story
Smart vertical farming in big cities

Intuitive pH and conductivity measurement in smart vertical farming plants to meet quality requirements and ensure comprehensive monitoring of processes.
Read the full story

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5 products & bundles

Bundle
Complete measuring loop for SAC in the wastewater outlet

Bundle

Products

Liquid Analysis

Save time with this pre-configured package for optical SAC measurement that ensures reliable process monitoring

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4 products

CAY342 standard solution, CA70NI/CAS51D

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1-/2-channel transmitter
Liquiline CM442

F

	EN
04/12/2020
31/07/2019
30/06/2017
17/12/2010
01/05/2010

Language:	Russian
Version:	04/12/2020
File size:	1.4 MB
File name:	TI00459CRU_1620.pdf

	EN
04/12/2020
31/07/2019
30/06/2017
17/12/2010
01/05/2010

Language:	English
Version:	04/12/2020
File size:	1.4 MB
File name:	TI00459CEN_1620.pdf

	EN
04/12/2020
31/01/2019
31/01/2017
31/12/2010
01/05/2010

Language:	French
Version:	04/02/2019
File size:	4.6 MB
File name:	FA00012CFR_1918-BM.pdf

Language:	Italian
Version:	21/03/2017
File size:	26.5 MB
File name:	FA00012CIT_18.17.pdf

Language:	Spanish
Version:	21/11/2018
File size:	3.6 MB
File name:	FA00012Ces_Catálogo Analizadores_19.18.pdf

Language:	Czech
Version:	12/01/2017
File size:	740.3 KB
File name:	Analyza_FA01018Ccs_0216.pdf

Language:	German
Version:	03/08/2018
File size:	3.4 MB
File name:	CP01197CDE_0118_Damit Ihre Kläranlage läuft.pdf

Language:	Romanian
Version:	24/05/2022
File size:	150.2 KB
File name:	MSDS_CAY342V10C25AAE_(RO).pdf

Language:	Unknown
Version:	24/05/2022
File size:	182.6 KB
File name:	MSDS_CAY342V10C25AAE_(UK).pdf

Language:	Turkish
Version:	24/05/2022
File size:	186.8 KB
File name:	MSDS_CAY342V10C25AAE_(TR).pdf

Language:	Bulgarian
Version:	24/05/2022
File size:	198.6 KB
File name:	MSDS_CAY342V10C40AAE_(BUL).pdf

	EN
21/09/2022

	EN
18/01/2023

Language:	English
Version:	20/08/2021
File size:	736.7 KB
File name:	CS01720C_0121_All around ideally supplied algae.pdf

	EN
27/10/2022

Digital nitrate or SAC sensor Viomax CAS51D

Memosens sensor for optical measurement of nitrate, SAC, CODeq, TOCeq, BODeq or DOCeq

Specs at a glance

Measurement range

Process temperature

Field of application

Benefits

Get this product as part of a bundle

Complete measuring loop for SAC in the wastewater outlet

Extended selection

Predecessor

Success stories

Monitoring water quality in fish farms

TOCeq measurement in wastewater treatment

Conductivity system optimises production of biosurfactants

Safe phosphate elimination with minimal effort

Smart vertical farming in big cities

Could also interest you

Liquiline: cutting-edge transmitter platform

Memosens 2.0: Cutting-edge sensor technology reloaded

Measuring principle

Characteristic

Size

Design

Process temperature

Ambient temperature

Specials

Application

Measurement range

Back

Viomax CAS51D

Viomax CAS51D

Viomax CAS51D

Operating Instructions - Compressed air cleaning unit - 115VAC

Analyseurs, capteurs in situ et préleveurs

Analizzatori, sensori in loco e campionatori

Expertise in liquid analysis

Analyzers, in-situ sensors and samplers

Catálogo Analizadores

Analizzatori, sensori in loco e campionatori

Catálogo Portfolio Analítica

Esperti nell’analisi dei liquidi

Jistota v analýze kapalin

Damit Ihre Kläranlage läuft und läuft und läuft

Making sure your WWTP runs and runs and runs

For the love of quality water

Aus Freude an gutem Wasser

Water company halves the energy needed for UV application

All around ideally supplied algae

Monitoring water quality in fish farms

Pure high quality beer and clean wastewater

Überwachung der Wasserqualität in Fischzuchtbecken

Rundum ideal versorgte Algen

CAY342V10C25AAE (Romania)

CAY342V10C25AAE (Ukraine)

CAY342V10C25AAE (United Arab Emirates)

CAY342V10C25AAE (Turkey)

CAY342V10C40AAE (Bulgaria)

CAY342V10C40AAE (Austria)

CAY342V10C40AAE (Australia)

CAY342V10C40AAE (Germany)

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Kit CAS51D flow cell O-ring set

Flow cell CAS51D 2-40 mm

Cleaning head CAS51D 6 or 8mm

Cleaning head CAS51D 1/4"

Aeroclean connec. 6/ 8mm, 40mm CAS51D

Cleaning unit, 230 V

115 VAC 2 output compr.air cleaning unit

CAY342 standard solution, CA70NI/CAS51D

1-/2-channel transmitter Liquiline CM442

Input

Output / communication

Ingres protection

1-/2-channel transmitter Liquiline CM442R

Input

Output / communication

Ingres protection

Multichannel transmitterLiquiline CM44P

Ingres protection

Memosens sensor for optical measurement of nitrate, SAC, COD_eq, TOC_eq, BOD_eq or DOC_eq

1-/2-channel transmitter
Liquiline CM442

1-/2-channel transmitter
Liquiline CM442R

Multichannel transmitter
Liquiline CM44P

1-/2-channel transmitter
Liquiline CM442