![Viomax CAS51D is a smart nitrate and SAC sensor that allows unattended operation of your process. Viomax CAS51D - the smart nitrate & SAC sensor with fast response time and chemical-free handling.](/__image/a/23483/k/db9f0512f19cf106eeb06e95415e4445e49489f1/ar/1-1/w/100/t/jpg/b/ffffff/n/true/fn/CAS51D_front.jpg)
![Wastewater measuring point with optical SAC sensor SAC measuring point with optical SAC sensor for wastewater outlet](/__image/a/9563166/k/b805e9c41b5590d29253d7acdf600c1a4c2b358a/ar/1-1/w/344/t/jpg/b/ffffff/n/true/fn/Bundle%2006_Template_71481761_SAC%20Organic%20in%20Waste%20Water%20outlet.jpg)
Benefits at a glance
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Endress+Hauser supports you with this product bundle for monitoring the remaining organic pollution in the effluent of municipal WWTPs. The Viomax CAS51D SAC sensor ensures optimum process control by monitoring in real time. Chemicals or disposables are not required. The Memosens sensor is ideal for harsh environments and ensures fast data transmission. The Liquiline transmitter's great flexibility in the number of sensors and digital communication makes the measuring point future-proof.
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Continuous measurement directly in the drain
Thanks to an optical measurement of organic pollution in the wastewater treatment plant outlet with the Viomax CAS51D SAC sensor, you always have the critical values in view. The sensor ensures on-line measurement of SAC254, COD, BOD, TOC or DOC equivalents directly in the outlet.
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Fast response time and efficient process control
The Viomax CAS51D SAC sensor provides reliable real-time process information thanks to its extremely fast response time and measured value processing in the sensor.
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Save time and costs and protect the environment
The great advantage of measuring with the optical sensor is that no chemicals or consumables are required; sample preparation is also not necessary. The standardized Memosens technology also enables very simple, time-saving operation and maintenance. The sensor and process-specific data stored in the sensor increase process reliability. An optionally available automatic compressed air cleaning system additionally ensures long maintenance intervals.
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Ready for automation
The Liquiline CM442 transmitter offers numerous possibilities for automatic measuring operation. For example, cleaning or dosing is possible without a PLC and thanks to the logbook function of the Liquiline transmitter, no separate register is necessary.
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Modular holder system for open basins and channels
Flexdip CYH112 offers high flexibility for measurements directly where they are needed. It allows almost any sensor mounting such as floor mounting, chain type installation, fixed or free swinging mounting. As the system installs quickly it saves time and costs and it can be expanded or modified at any time.
Bundle in Detail
![SAC bundle for wastewater with optical sensor Overview of all bundle parts](/__image/a/9563169/k/0d8e7ce0eb447e377eb9cb522f4a2d57fd58ae8d/ar/4-3/w/648/t/jpg/b/ffffff/n/true/fn/Bundle%2006_71481761_SAC%20Organic%20in%20Waste%20Water%20outlet.jpg)
Components and Pre-Configurations
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Fixations
To ensure the compatibility of the components with one another it has given certain fixations. Open parameters give you the freedom for individual configuration.
Components can be configured within the bundle in the cart -
Components1
- F
- L
- E
- X
Digital nitrate or SAC sensor Viomax CAS51D
Fixations:CAS51D-AAC2 _ _Approval:AANon-hazardous areaApplication/Measuring Range:C2SAC, 0 - 250 1/m optical path length: 8mm -
2
Immersion assembly
Flexdip CYA112Fixations:CYA112-AA _ 2CAApproval:Aw/oImmersion Pipe:AstandardConnection angle sensor:2Cstainless steel 90oSensor adapter:AG1 -
3
Modular holder system
Flexdip CYH112Fixations:CYH112-A _ _ B _ D1Approval:Aw/oTraverse Mounting:Bcross clampConnection Immersion Pipe:Dcross clampAdapter:1w/o -
4
- F
- L
- E
- X
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5
Weather protection cover CYY101
Fixations:CYY101-AVersion:AStainless steel 1.4301, 320x300x270mm -
6
Cleaning head CAS51D 6 or 8mm
Fixations: -
7
Cleaning head CAS51D 1/4"
Fixations:
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Standard products
- Reliable, robust and low-maintenance
Technical excellence
Simplicity
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Specialized products
- Designed for demanding applications
Technical excellence
Simplicity
Variable
FLEX selections | Technical excellence | Simplicity |
---|---|---|
Fundamental selection Meet your basic measurement needs |
Technical excellence
|
Simplicity
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Lean selection Handle your core processes easily |
Technical excellence
|
Simplicity
|
Extended selection Optimize your processes with innovative technologies |
Technical excellence
|
Simplicity
|
Xpert selection Master your most challenging applications |
Technical excellence
|
Simplicity
Variable |
Digital nitrate or SAC sensor Viomax CAS51D
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.
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Measuring principle
UV photometric
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Characteristic
Insitu (immersion in process), extractive with sample and flow cell
Optical photometric sensor for nitrate and SAC -
Size
388 / 394 mm x 40 mm, depends on version
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Design
40 mm sensor, stainless steel 316L
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Process temperature
5 to 50°C (41 to 120 °F)
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Ambient temperature
-20 to 60 °C (-4 to 140 °F)
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Specials
G1, NPT3/4
IP68 (1m/3,3ft) water column with 1N KCl during 60d ays -
Application
Drinking water, biological waste wate process, WWTP effluent
Monitoring of surface water -
Measuring 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)
Immersion assembly
Flexdip CYA112
The Flexdip CYA112 is a modular assembly for sensor immersion in open basins, channels, or tanks. It allows nearly any kind of sensor mounting – chain, fixed, or free-swinging – and features a quick fastener for rapid and safe installation of Memosens or fixed-cable sensors. The assembly provides you with outstanding flexibility and enables you to optimally configure your measurement at low costs.
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Measuring principle
Potentiometric
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Application
Water treatment, wastewater treatment, plant design, open channels, basins, open tanks and process vats, fluctuating water levels
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Installation
CYA112 is a modular assembly system for sensors in open basins, channels and tanks
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Characteristic
Simple and easy installation
Universal and flexible -
Design
Versions in stainless steel or PVC
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Material
Immersion pipe, connection angle, welded threads: stainless steel 1.4404
Sensor adaption, quick fastener, multifunctional clamp ring: POM - GF
O-rings: EPDM -
Dimension
Immersion pipe diameter: 40 mm (1.57 inch)
Length: 600, 1200, 1800 and 2400 mm
(23.6, 47.2, 70.9 and 94.5 inch) -
Process temperature
0 to 60 °C (32 to 140 °F)
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Measuring principle
Sensor ORP / Redox
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Application
Water treatment, wastewater treatment, plant design, open channels, basins, open tanks and process vats, fluctuating water levels
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Installation
CYA112 is a modular assembly system for sensors in open basins, channels and tanks
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Characteristic
Simple and easy installation
Universal and flexible -
Design
Versions in stainless steel or PVC
-
Material
Immersion pipe, connection angle, welded threads: stainless steel 1.4404
Sensor adaption, quick fastener, multifunctional clamp ring: POM - GF
O-rings: EPDM -
Dimension
Immersion pipe diameter: 40 mm (1.57 inch)
Length: 600, 1200, 1800 and 2400 mm
(23.6, 47.2, 70.9 and 94.5 inch) -
Process temperature
0 to 60 °C (32 to 140 °F)
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Measuring principle
Conductive
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Application
Water treatment, wastewater treatment, plant design, open channels, basins, open tanks and process vats, fluctuating water levels
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Installation
CYA112 is a modular assembly system for sensors in open basins, channels and tanks
-
Characteristic
Simple and easy installation
Universal and flexible -
Design
Versions in stainless steel or PVC
-
Material
Immersion pipe, connection angle, welded threads: stainless steel 1.4404
Sensor adaption, quick fastener, multifunctional clamp ring: POM - GF
O-rings: EPDM -
Dimension
Tauchrohr Durchmesser: 40 mm (1.57 Zoll)
Länge: 600, 1200, 1800 und 2400 mm
(23.6, 47.2, 70.9 und 94.5 Zoll) -
Process temperature
0 ... 60 °C (32 ... 140 °F)
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Measuring principle
Amperometric oxygen measurement
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Application
Water treatment, wastewater treatment, plant design, open channels, basins, open tanks and process vats, fluctuating water levels
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Installation
CYA112 is a modular assembly system for sensors in open basins, channels and tanks
-
Characteristic
Simple and easy installation
Universal and flexible -
Design
Versions in stainless steel or PVC
-
Material
Immersion pipe, connection angle, welded threads: stainless steel 1.4404
Sensor adaption, quick fastener, multifunctional clamp ring: POM - GF
O-rings: EPDM -
Dimension
Immersion pipe diameter: 40 mm (1.57 inch)
Length: 600, 1200, 1800 and 2400 mm
(23.6, 47.2, 70.9 and 94.5 inch) -
Process temperature
0 to 60 °C (32 to 140 °F)
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Measuring principle
Total chlorine
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Application
Water treatment, wastewater treatment, plant design, open channels, basins, open tanks and process vats, fluctuating water levels
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Characteristic
Simple and easy installation
Universal and flexible -
Design
Versions in stainless steel or PVC
-
Material
Immersion pipe, connection angle, welded threads: stainless steel 1.4404
Sensor adaption, quick fastener, multifunctional clamp ring: POM - GF
O-rings: EPDM -
Dimension
Immersion pipe diameter: 40 mm (1.57 inch)
Length: 600, 1200, 1800 and 2400 mm
(23.6, 47.2, 70.9 and 94.5 inch) -
Process temperature
0 to 60 °C (32 to 140 °F)
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Measuring principle
Single beam scattered light
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Application
Water treatment, wastewater treatment, plant design, open channels, basins, open tanks and process vats, fluctuating water levels
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Installation
CYA112 is a modular assembly system for sensors in open basins, channels and tanks
-
Characteristic
Simple and easy installation
Universal and flexible -
Design
Versions in stainless steel or PVC
-
Material
Immersion pipe, connection angle, welded threads: stainless steel 1.4404
Sensor adaption, quick fastener, multifunctional clamp ring: POM - GF
O-rings: EPDM -
Dimension
Immersion pipe diameter: 40 mm (1.57 inch)
Length: 600, 1200, 1800 and 2400 mm
(23.6, 47.2, 70.9 and 94.5 inch) -
Process temperature
0 to 60 °C (32 to 140 °F)
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Measuring principle
UV photometric
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Characteristic
Simple and easy installation
Universal and flexible -
Design
Versions in stainless steel or PVC
-
Process temperature
0 to 60 °C (32 to 140 °F)
-
Application
Water treatment, wastewater treatment, plant design, open channels, basins, open tanks and process vats, fluctuating water levels
Modular holder system
Flexdip CYH112
The Flexdip CYH112 holder is a modular system for sensors and assemblies in open basins, channels, or tanks. It allows nearly any kind of fixing, such as floor, wall, and rail mounting. Moreover, it is suitable for all types of sensor installation – chain, fixed, or free-swinging. The holder can be expanded or modified at any time. Flexdip CYH112 provides you with outstanding flexibility and enables you to install your measurement right on the point.
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Measuring principle
Potentiometric
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Application
Water treatment, wastewater treatment, plant design, open channels, basins, open tanks and process vats, fluctuating water levels
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Installation
CYH112 is a modular holder system for sensors and assemblies in open basins, channels and tanks
-
Characteristic
Simple and easy installation
Universal and flexible -
Design
The holder system CYH112 works for nearly any type of fixing:
Fixing on the floor, wall or directly on a rail -
Material
Main pipe, transverse pipe: stainless steel 1.4404
Chain: PA or stainless steel 1.4401 -
Process temperature
-20 to 60 °C (-4 to 140 °F)
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Measuring principle
Sensor ORP / Redox
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Application
Water treatment, wastewater treatment, plant design, open channels, basins, open tanks and process vats, fluctuating water levels
-
Installation
CYH112 is a modular holder system for sensors and assemblies in open basins, channels and tanks
-
Characteristic
Simple and easy installation
Universal and flexible -
Design
The holder system CYH112 works for nearly any type of fixing:
Fixing on the floor, wall or directly on a rail -
Material
Main pipe, transverse pipe: stainless steel 1.4404
Chain: PA or stainless steel 1.4401 -
Process temperature
-20 to 60 °C (-4 to 140 °F)
-
Measuring principle
Conductive
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Application
Water treatment, wastewater treatment, plant design, open channels, basins, open tanks and process vats, fluctuating water levels
-
Installation
CYH112 is a modular holder system for sensors and assemblies in open basins, channels and tanks
-
Characteristic
Simple and easy installation
Universal and flexible -
Design
The holder system CYH112 works for nearly any type of fixing:
Fixing on the floor, wall or directly on a rail -
Material
Main pipe, transverse pipe: stainless steel 1.4404
Chain: PA or stainless steel 1.4401 -
Process temperature
-20 to 60 °C (-4 to 140 °F)
-
Measuring principle
Amperometric oxygen measurement
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Application
Water treatment, wastewater treatment, plant design, open channels, basins, open tanks and process vats, fluctuating water levels
-
Installation
CYH112 is a modular holder system for sensors and assemblies in open basins, channels and tanks
-
Characteristic
Simple and easy installation
Universal and flexible -
Design
The holder system CYH112 works for nearly any type of fixing:
Fixing on the floor, wall or directly on a rail -
Material
Main pipe, transverse pipe: stainless steel 1.4404
Chain: PA or stainless steel 1.4401 -
Process temperature
-20 to 60 °C (-4 to 140 °F)
-
Measuring principle
Total chlorine
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Application
Water treatment, wastewater treatment, plant design, open channels, basins, open tanks and process vats, fluctuating water levels
-
Characteristic
Simple and easy installation
Universal and flexible -
Design
The holder system CYH112 works for nearly any type of fixing:
Fixing on the floor, wall or directly on a rail -
Material
Main pipe, transverse pipe: stainless steel 1.4404
Chain: PA or stainless steel 1.4401 -
Process temperature
-20 to 60 °C (-4 to 140 °F)
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Measuring principle
Single beam scattered light
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Application
Water treatment, wastewater treatment, plant design, open channels, basins, open tanks and process vats, fluctuating water levels
-
Installation
CYH112 is a modular holder system for sensors and assemblies in open basins, channels and tanks
-
Characteristic
Simple and easy installation
Universal and flexible -
Design
The holder system CYH112 works for nearly any type of fixing:
Fixing on the floor, wall or directly on a rail -
Material
Main pipe, transverse pipe: stainless steel 1.4404
Chain: PA or stainless steel 1.4401 -
Process temperature
-20 to 60 °C (-4 to 140 °F)
-
Measuring principle
UV photometric
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Characteristic
Simple and easy installation
Universal and flexible -
Design
The holder system CYH112 works for nearly any type of fixing:
Fixing on the floor, wall or directly on a rail -
Process temperature
-20 to 60 °C (-4 to 140 °F)
-
Application
Water treatment, wastewater treatment, plant design, open channels, basins, open tanks and process vats, fluctuating water levels
1-/2-channel transmitter
Liquiline CM442
The Liquiline CM442 transmitter allows you to connect up to 2 Memosens sensors of your choice from over 12 measurement parameters. It offers automatic sensor recognition, easy operation, and standardized spare parts with all other devices of the Liquiline platform. With its inputs, outputs, controllers, and math modules, you can even control cleaning systems or dosing pumps. Heartbeat Technology helps you find the ideal balance between measuring point availability and maintenance costs.
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Measuring principle
Potentiometric
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Application
Modular 4 wire controller
Multichannel: 1/2 digital channels for Memosens protocol
Multiparameter: pH, redox, ISFET, conductivity inductive and conductive, dissolved oxygen, nitrate and turbidity
Two sensors connectable in any combination
Functionality modular extendable at any time
Plug and play for modules and sensors -
Characteristic
Robust plastic housing
All non-ex applications -
Design
2x Memosens input, 2 to 4x current output, Alarmrelay,
2x relay, SD card for software update and copy & paste of setup -
Material
Housing base: PC-FR
Housing seal: EPDM -
Dimension
237 x 194 x 162 mm
9.33 x 7.64 x 6.38 inch -
Process temperature
-20 to 60 °C (0 to 140 °F)
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Ingress protection
IP66 / IP67
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Input
1 to 2x Memosens digital input
2x 0/4 to 20mA input optional
2x Digital input optional -
Output / communication
2 to 8x 0/4 to 20 mA current outputs
Alarmrelay, 2x relay, ProfibusDP, Modbus RS485, Modbus TCP, Ethernet -
Additional certifications
EAC, cCSAus, MCERTS
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Measuring principle
Sensor ORP / Redox
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Application
Modular 4 wire controller
Multichannel: 1/2 digital channels for Memosens protocol
Multiparameter: pH, redox, ISFET, conductivity inductive and conductive, dissolved oxygen, nitrate and turbidity
Two sensors connectable in any combination
Functionality modular extendable at any time
Plug and play for modules and sensors -
Characteristic
Robust plastic housing
All non-ex applications -
Design
2x Memosens input, 2 to 4x current output, Alarmrelay,
2x relay, SD card for software update and copy & paste of setup -
Material
Housing base: PC-FR
Housing seal: EPDM -
Dimension
237 x 194 x 162 mm
9.33 x 7.64 x 6.38 inch -
Process temperature
-20 to 60 °C (0 to 140 °F)
-
Ingress protection
IP66 / IP67
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Input
1 to 2x Memosens digital input
-
Output / communication
2 to 8x 0/4 to 20 mA current outputs
Alarmrelay, 2x relay -
Additional certifications
EAC, cCSAus, MCERTS
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Measuring principle
Conductive
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Application
Modular 4 wire controller
Multichannel: 1/2 digital channels for Memosens protocol
Multiparameter: pH, redox, ISFET, conductivity inductive and conductive, dissolved oxygen, nitrate and turbidity
Two sensors connectable in any combination
Functionality modular extendable at any time
Plug and play for modules and sensors -
Characteristic
Robust plastic housing
All non-ex applications -
Design
2x Memosens input, 2 to 4x current output, Alarmrelay
2x relay, SD card for software update and copy & paste of setup -
Material
Housing base: PC-FR
Housing seal: EPDM -
Dimension
237 x 194 x 162 mm
9.33 x 7.64 x 6.38 inch -
Process temperature
-20 to 60 °C (0 to 140 °F)
-
Ingress protection
IP66 / IP67
-
Input
1 to 2x Memosens digital input
-
Output / communication
2 to 8x 0/4 to 20 mA current outputs
Alarmrelay, 2x relay -
Additional certifications
EAC, cCSAus, MCERTS
-
Measuring principle
Amperometric oxygen measurement
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Application
Modular 4 wire controller
Multichannel: 1/2 digital channels for Memosens protocol
Multiparameter: pH, redox, ISFET, conductivity inductive and conductive, dissolved oxygen, nitrate and turbidity
Two sensors connectable in any combination
Functionality modular extendable at any time
Plug and play for modules and sensors -
Characteristic
Robust plastic housing
All non-ex applications -
Design
2x Memosens input, 2 to 4x current output, Alarmrelay
2x relay, SD card for software update and copy & paste of setup -
Material
Housing base: PC-FR
Housing seal: EPDM -
Dimension
237 x 194 x 162 mm
9.33 x 7.64 x 7.38 inch -
Process temperature
-20 to 60 °C (0 to 140 °F)
-
Ingress protection
IP67
-
Input
1 to 2x Memosens digital input
-
Output / communication
2 to 4x 0/4...20 mA current outputs
Alarmrelay, 2x relay -
Additional certifications
EAC, cCSAus, MCERTS
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Measuring principle
Free chlorine
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Application
Modular 4 wire controller
Multichannel: 1/2 digital channels for Memosens protocol
Multiparameter: pH, redox, ISFET, conductivity inductive and conductive, dissolved oxygen, nitrate and turbidity
Two sensors connectable in any combination
Functionality modular extendable at any time
Plug and play for modules and sensors -
Characteristic
Robust plastic housing
All non-ex applications -
Design
2x Memosens input, 2 to 4x current output, Alarmrelay
2x relay, SD card for software update and copy & paste of setup -
Material
Housing base: PC-FR
Housing seal: EPDM -
Dimension
237 x 194 x 162 mm
9.33 x 7.64 x 7.38 inch -
Process temperature
-20 to 60 °C (0 to 140 °F)
-
Input
1 to 2x Memosens digital input
-
Output / communication
2 to 4x 0/4 to 20 mA current outputs
Alarmrelay, 2x relay -
Additional certifications
EAC, cCSAus, MCERTS
-
Measuring principle
Four beam alternating light
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Application
Modular 4 wire controller
Multichannel: 1/2 digital channels for Memosens protocol
Multiparameter: pH, redox, ISFET, conductivity inductive and conductive, dissolved oxygen, nitrate and turbidity
Two sensors connectable in any combination
Functionality modular extendable at any time
Plug and play for modules and sensors -
Characteristic
Robust plastic housing
All non-ex applications -
Design
2x Memosens input, 2 to 4x current output, Alarmrelay,
2x relay, SD card for software update and copy & paste of setup -
Material
Housing base: PC-FR
Housing seal: EPDM -
Dimension
237 x 194 x 162 mm
9.33 x 7.64 x 7.38 inch -
Process temperature
-20 to 60 °C (0 to 140 °F)
-
Ingress protection
IP66 / IP67
-
Input
1 to 2x Memosens digital input
2x 0/4 to 20mA input optional
2x Digital input optional -
Output / communication
2 to 4x 0/4 to 20 mA current outputs,
Alarmrelay, 2x relay -
Additional certifications
EAC, cCSAus, MCERTS
-
Measuring principle
Ultrasonic sensor
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Application
Modular 4 wire controller
Multichannel: 1/2 digital channels for Memosens protocol
Multiparameter: pH, redox, ISFET, conductivity inductive and conductive, dissolved oxygen, nitrate and turbidity
Two sensors connectable in any combination
Functionality modular extendable at any time
Plug and play for modules and sensors -
Characteristic
Robust plastic housing
All non-ex applications -
Design
2x Memosens input, 2 to 4x current output, Alarmrelay
2x relay, SD card for software update and copy & paste of setup -
Material
Housing base: PC-FR
Housing seal: EPDM -
Dimension
237 x 194 x 162 mm
9.33 x 7.64 x 7.38 inch -
Process temperature
-20 to 60 °C (0 to 140 °F)
-
Ingress protection
IP66 / IP67
-
Input
1 to 2x Memosens digital input
2x 0/4 to 20mA input optional
2x Digital input optional -
Output / communication
2 to 8x 0/4 to 20 mA current outputs
Alarmrelay, 2x relay, ProfibusDP, Modbus RS485, Modbus TCP, Ethernet -
Additional certifications
EAC, cCSAus, MCERTS
-
Measuring principle
Fluorescence measurement
-
Measuring principle
UV photometric
-
Characteristic
Robust plastic housing
All non-ex applications -
Design
2x Memosens input, 2 to 4x current output, Alarmrelay
2x relay, SD card for software update and copy & paste of setup -
Process temperature
-20 to 60 °C (0 to 140 °F)
-
Application
Modular 4 wire controller
Multichannel: 1/2 digital channels for Memosens protocol
Multiparameter: pH, redox, ISFET, conductivity inductive and conductive, dissolved oxygen, nitrate and turbidity
Two sensors connectable in any combination
Functionality modular extendable at any time
Plug and play for modules and sensors -
Output / communication
2 to 8x 0/4 to 20 mA current outputs
Alarmrelay, 2x relay -
Input
1 to 2x Memosens digital input