Endress+Hauser Memosens Wave CAS80E User manual

Products Solutions Services
Operating Instructions
Memosens Wave CAS80E
Spectrometer for water analysis
BA02005C/07/EN/03.20
71508624
2020-12-02

Memosens Wave CAS80E Table of contents
Endress+Hauser 3
Table of contents
1 About this document ................ 4
1.1 Warnings ............................ 4
1.2 Symbols used .......................... 4
2 Basic safety instructions ............ 5
2.1 Requirements for personnel ............... 5
2.2 Designated use ........................ 5
2.3 Workplace safety ....................... 5
2.4 Operational safety ...................... 5
2.5 Product safety ......................... 6
3 Product description ................. 7
3.1 Product design ......................... 7
4 Incoming acceptance and product
identification ....................... 9
4.1 Incoming acceptance .................... 9
4.2 Product identification .................... 9
4.3 Scope of delivery ...................... 10
4.4 Certificates and approvals ............... 10
5 Installation ....................... 11
5.1 Installation conditions .................. 11
5.2 Mounting the spectrometer .............. 13
5.3 Post-installation check .................. 21
6 Electrical connection .............. 22
6.1 Connecting the spectrometer ............. 22
6.2 Ensuring the degree of protection .......... 23
6.3 Post-connection check .................. 23
7 Commissioning .................... 25
7.1 Function check ....................... 25
8 Operation ......................... 26
8.1 Adapting the measuring device to the process
conditions ........................... 26
8.2 Cyclic cleaning ........................ 29
9 Diagnostics and troubleshooting ... 31
9.1 General troubleshooting ................. 31
10 Maintenance ...................... 32
10.1 Maintenance schedule .................. 32
10.2 Maintenance tasks ..................... 32
11 Repair ............................ 34
11.1 General information ................... 34
11.2 Spare parts .......................... 34
11.3 Return .............................. 34
11.4 Disposal ............................ 34
12 Accessories ....................... 35
12.1 Device-specific accessories ............... 35
13 Technical data .................... 37
13.1 Input ............................... 37
13.2 Performance characteristics .............. 38
13.3 Environment ......................... 42
13.4 Process ............................. 42
13.5 Mechanical construction ................ 42
Index .................................. 43

About this document Memosens Wave CAS80E
4 Endress+Hauser
1 About this document
1.1 Warnings
Structure of information Meaning
LDANGER
Causes (/consequences)
If necessary, Consequences of
non-compliance (if applicable)
‣Corrective action
This symbol alerts you to a dangerous situation.
Failure to avoid the dangerous situation will result in a fatal or serious
injury.
LWARNING
Causes (/consequences)
If necessary, Consequences of
non-compliance (if applicable)
‣Corrective action
This symbol alerts you to a dangerous situation.
Failure to avoid the dangerous situation can result in a fatal or serious
injury.
LCAUTION
Causes (/consequences)
If necessary, Consequences of
non-compliance (if applicable)
‣Corrective action
This symbol alerts you to a dangerous situation.
Failure to avoid this situation can result in minor or more serious injuries.
NOTICE
Cause/situation
If necessary, Consequences of
non-compliance (if applicable)
‣Action/note
This symbol alerts you to situations which may result in damage to
property.
1.2 Symbols used
Symbol Meaning
Additional information, tips
Permitted or recommended
Not permitted or not recommended
Reference to device documentation
Reference to page
Reference to graphic
 Result of a step
1.2.1 Symbols on the device
Symbol Meaning
Reference to device documentation

Memosens Wave CAS80E Basic safety instructions
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2 Basic safety instructions
2.1 Requirements for personnel
• Installation, commissioning, operation and maintenance of the measuring system may
be carried out only by specially trained technical personnel.
• The technical personnel must be authorized by the plant operator to carry out the
specified activities.
• The electrical connection may be performed only by an electrical technician.
• The technical personnel must have read and understood these Operating Instructions
and must follow the instructions contained therein.
• Faults at the measuring point may only be rectified by authorized and specially trained
personnel.
Repairs not described in the Operating Instructions provided must be carried out only
directly at the manufacturer's site or by the service organization.
2.2 Designated use
The spectrometer is used to measure a variety of parameters in liquid media with UV-VIS
spectroscopy.
The spectrometer is particularly suitable for measurements in the following applications:
• Inlet and outlet of wastewater treatment plants
• Drinking water
• Surface water
Use of the device for any purpose other than that described, poses a threat to the safety of
people and of the entire measuring system and is therefore not permitted.
The manufacturer is not liable for damage caused by improper or non-designated use.
2.3 Workplace safety
LCAUTION
UV light
UV light can damage the eyes and skin!
‣Never look into the measuring gap while the device is in operation.
As the user, you are responsible for complying with the following safety conditions:
• Installation guidelines
• Local standards and regulations
Electromagnetic compatibility
• The product has been tested for electromagnetic compatibility in accordance with the
applicable international standards for industrial applications.
• The electromagnetic compatibility indicated applies only to a product that has been
connected in accordance with these Operating Instructions.
2.4 Operational safety
Before commissioning the entire measuring point:
1. Verify that all connections are correct.
2. Ensure that electrical cables and hose connections are undamaged.
3. Do not operate damaged products, and protect them against unintentional operation.
4. Label damaged products as defective.

Basic safety instructions Memosens Wave CAS80E
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During operation:
‣If faults cannot be rectified:
products must be taken out of service and protected against unintentional operation.
2.5 Product safety
The product is designed to meet state-of-the-art safety requirements, has been tested, and
left the factory in a condition in which it is safe to operate. The relevant regulations and
international standards have been observed.

Memosens Wave CAS80E Product description
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3 Product description
3.1 Product design
The spectrometer has a diameter of 40 mm (1.57 in) and can be operated directly in-line
without any additional sampling. It is available with the standard measurement gap
lengths of 2 mm (0.08 in), 10 mm (0.4 in) and 50 mm (1.97 in), and is also available with
1 mm (0.04 in) and 100 mm (3.94 in) gap lengths on request.
The spectrometer consists of the following modules:
• Power supply
• High-voltage generation for the strobe lamp
• Xenon strobe lamp
• Monitor diode
• Measurement gap
• Spectrometer: UV/VIS 200 to 800 nm
• Microcontroller
All data - including the calibration data - are stored in the spectrometer. The spectrometer
can be precalibrated and used at a measuring point, calibrated externally, or used for
several measuring points with different calibrations.
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5
A0042866
 1 Product design
1 Spectrometer module
2 Lens
3 Monitor diode
4 Light source
5 Measurement gap
A light source sends a beam of light through the medium via the lenses. The medium
under analysis is located in the measurement gap. In the spectrometer module, the beam
of light is converted to electrical, measurable signals →  1,  7.
3.1.1 Measuring principle
The spectrometer uses the substance-specific absorption of electromagnetic radiation to
indicate the measurement parameters from the recorded spectrum.

Product description Memosens Wave CAS80E
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200 300 400 500 600 700
A
λ/nm
3
12
800
a
BC
A0042861
 2 Ranges of parameters in the absorption spectrum
λ Wavelength range
A Absorption
B Ultraviolet light (UV)
C Visible light (VIS)
a 254 nm, SAC
1 Nitrate, nitrite
2 Sum parameters BODeq, CODeq, TOCeq, DOCeq
3 Color, turbidity, TSS
A specific absorption spectrum can be assigned to every molecule. By comparing a zero
spectrum I0 determined previously in ultrapure water and the measuring spectrum with
the intensity I, the absorption A can be calculated as follows:
A = -log10 (I/I0) = ε . c . d
The absorption A depends directly on the concentration c, the measurement gap length d
and the extinction coefficient ε.
Analytical models programmed into the spectrometer calculate the concentration of the
parameters from the absorption spectra. These analytical models have been determined by
correlating known parameter concentrations with their related absorption spectra.
The calculation uses the same wavelengths to determine different parameters. This results
in what are termed "cross-sensitivities". For example, if turbidity increases less light is
detected when determining the chemical oxygen demand (COD).

Memosens Wave CAS80E Incoming acceptance and product identification
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4 Incoming acceptance and product
identification
4.1 Incoming acceptance
1. Verify that the packaging is undamaged.
 Notify the supplier of any damage to the packaging.
Keep the damaged packaging until the issue has been resolved.
2. Verify that the contents are undamaged.
 Notify the supplier of any damage to the delivery contents.
Keep the damaged goods until the issue has been resolved.
3. Check that the delivery is complete and nothing is missing.
 Compare the shipping documents with your order.
4. Pack the product for storage and transportation in such a way that it is protected
against impact and moisture.
 The original packaging offers the best protection.
Make sure to comply with the permitted ambient conditions.
If you have any questions, please contact your supplier or your local Sales Center.
4.2 Product identification
4.2.1 Nameplate
The nameplate provides you with the following information on your device:
• Manufacturer identification
• Extended order code
• Serial number
• Safety information and warnings
‣Compare the information on the nameplate with the order.
4.2.2 Identifying the product
Product page
www.endress.com/cas80e
Order code
The order code and serial number of your product can be found in the following locations:
• On the nameplate
• In the delivery papers
Obtaining information on the product
1. Go to www.endress.com.
2. Call up the site search (magnifying glass).
3. Enter a valid serial number.
4. Search.
 The product structure is displayed in a popup window.

Incoming acceptance and product identification Memosens Wave CAS80E
10 Endress+Hauser
5. Click on the product image in the popup window.
 A new window (Device Viewer) opens. All of the information relating to your
device is displayed in this window as well as the product documentation.
4.2.3 Manufacturer address
Endress+Hauser Conducta GmbH+Co. KG
Dieselstraße 24
D-70839 Gerlingen
4.3 Scope of delivery
The delivery comprises:
• Spectrometer, version as ordered
• Cleaning brush (x 2)
• 32GB SD card for data logging
• Operating Instructions
4.4 Certificates and approvals
4.4.1  mark
The product meets the requirements of the harmonized European standards. As such, it
complies with the legal specifications of the EU directives. The manufacturer confirms
successful testing of the product by affixing to it the  mark.
4.4.2 Additional certification
Electromagnetic compatibility
Interference emission and interference immunity as per
• EN 61326-1:2013
• EN 61326-2-3:2013
• EN 61326-2-5: 2013
• NAMUR NE21: 2012

Memosens Wave CAS80E Installation
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5 Installation
5.1 Installation conditions
5.1.1 Dimensions
330 (13)
112.5 (4.4)
442.5 (17.4)
Ø 40 (1.6)
80.9
(3.2)
2.6
(0.1)
20.5 (0.8)
36 (1.4)
2 (0.08)
A0041366
 3 Dimensions of spectrometer with
2 mm (0.08 in) gap. Dimensions: mm (in)
450.5 (17.7)
120.5 (4.7)
10 (0.4)
Ø 40 (1.6)
330 (13)
2.6
(0.1)
36 (1.4)
80.9
(3.2)
2.6
(0.1)
20.5 (0.8)
36 (1.4)
A0041367
 4 Dimensions of spectrometer with
10 mm (0.4 in) gap. Dimensions: mm (in)

Installation Memosens Wave CAS80E
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Ø 40 (1.6)
490.5 (19.3)
160.5 (6.3)
330(13)
50 (1.97)
80.9
(3.2)
2.6
(0.1)
20.5 (0.8)
36 (1.4)
A0041368
 5 Dimensions of spectrometer with
50 mm (1.97 in) gap. Dimensions: mm (in)
5.1.2 Installation instructions
• Choose a mounting location that can be easily accessed at a later stage.
• Align the spectrometer so that the measurement gap is rinsed by the flow of medium.
• Do not install the device in places where air pockets and foam bubbles form.
• Ensure that upright posts and assemblies are fully secured and vibration-free.
To ensure correct measurement, the windows at the measurement gap must be free from
any sedimentation. The best way to ensure this is through the use of a cleaning unit
(accessory) operated by compressed air.
‣In the event of horizontal orientation, mount the spectrometer in such a way that air
bubbles can escape from the measurement gap (do not point it downwards).
5.1.3 Orientation
A0013268
 6 Alignment, arrow points in
the flow direction
‣Align the spectrometer in such a way that the
measurement gap is rinsed with the flow of medium
and air bubbles are removed.

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5.2 Mounting the spectrometer
5.2.1 Measuring system
The complete measuring system comprises at least:
• Memosens Wave CAS80E spectrometer
• Liquiline CM44 transmitter
• Assembly, e.g. Flowfit CYA251 flow assembly
2
3
1
4
A0041371
 7 Example of a measuring system
1 CYA251 assembly
2 Memosens Wave CAS80E
3 Fixed cable
4 Liquiline CM44 transmitter
5.2.2 Flowfit CYA251 flow assembly
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6
A0032901
 8 Spectrometer with CYA251 flow assembly, arrow indicates the flow direction
1 Memosens Wave CAS80E
2 Rinse connection
3 Medium outlet
4 Flow assembly
5 Cap
6 Medium inflow

Installation Memosens Wave CAS80E
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13
562
7
2
24
A0032920
 9 Connection diagram with bypass
1 Main pipe
2 Manually actuated or solenoid valves
3 Medium outlet
4 Medium return
5 Medium inflow
6 Flow assembly
7 Medium sampling
• The flow rate must be at least 100 l/h (26.5 gal/h).
• Take the extended response times into consideration.
2
1
3
4
A0032921
 10 Connection diagram with open outlet, arrow points in the flow direction
1 Pump
2 Flow assembly
3 Open outlet
4 Filter unit
As an alternative to operation in the bypass, it is also possible to direct the sample flow
from a filter unit with an open outlet through the assembly →  8,  13.
For detailed information on installing the flow assembly: BA00495C

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5.2.3 Immersion assembly
A0013267
 11 CYA112 immersion assembly and CYH112
holder installed horizontally, fixed installation
The installation angle is 90°.
‣Align the spectrometer in such a way that
the measurement gap is rinsed with the
flow of medium and air bubbles are
removed.
A0013270
 12 CYA112 immersion assembly and CYH112
holder installed vertically, suspended from a
chain
The installation angle is 0°.
‣Ensure that the spectrometer is
adequately cleaned. There must be no
buildup on the optical windows.
For detailed information on installing the immersion assembly and the holder, see
BA00432C and BA00430C
5.2.4 Flow assembly 71110000
Mount the flow assembly only on a spectrometer with a gap of 2 mm (0.08 in) or
10 mm (0.4 in).
1
23
4
A0013352
 13 Spectrometer with flow assembly
1 Transmitter
2 Memosens Wave CAS80E
3 Flow assembly
4 Holder

Installation Memosens Wave CAS80E
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Ø 6.5
(0.26)
86
(3.39)
30
(1.18)
100
(3.94)
70
(2.76)
** 70
(2.76)
60
(2.36)
A0031302
 14 Dimensions. Dimensions: mm (in)
** Variable length
Securing the holder
Mount the spectrometer in a horizontal position as follows:
1. Drill holes for the mounting clamps in a wall or panel. In doing so, comply with the
dimensions indicated on →  14,  16 .
2. Secure the mounting clamps.
The required fastening fixtures (e.g. screws and wall plugs) are not included in the
scope of delivery of the kit and must be provided by the customer.
3.
Loosen the hexagonal nuts of the pipe clamps.
4. Remove the top part.
5.
M5
Place the spectrometer in the pipe clamps.
6. Screw on the top parts and tighten by hand (it should still be possible to move the
spectrometer).

Memosens Wave CAS80E Installation
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Mounting the flow assembly
A0033056
 15 Flow assembly mounted on the spectrometer
1.
Loosen the threaded rings of the flow assembly.
2. Remove both O-rings.
3. Check if the silicone grease provided with the kit is permitted for use in your
application. If it is not permitted for this application, use a grease that suits the
application instead.
Grease the O-rings.
4.
First slide a threaded ring (thread in the direction of the assembly) onto the
spectrometer, followed by an O-ring.
5.
Slide the assembly onto the spectrometer.
6. Fit the second O-ring and the second threaded ring onto the spectrometer.

Installation Memosens Wave CAS80E
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7.
Open the cap on the viewing window.
8.
Position the assembly on the spectrometer in such a way that the measurement gap
is visible in the center of the window.
9.
Tighten the two threaded rings. Ensure that the assembly does not change position.
10.
Close the viewing window with the cap.
11. To secure the viewing window, fasten the viewing window to one of the hose
connections (no diagram) using the transparent cord.
Mounting the assembly in the bypass

Memosens Wave CAS80E Installation
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13
5
62
7
2
24
A0013361
 16 Connection diagram with bypass
1 Main pipe
2 Manually actuated or solenoid valves
3 Medium outlet
4 Medium return
5 Flow assembly
6 Medium inflow
7 Medium sampling
‣Connect the medium inflow and outlet to the hose connections of the assembly
→  16,  19.
 This fills the assembly from below and ensures that the assembly is self-venting.
• The flow rate must be at least 100 ml/h (0.026 gal/h).
• Take the extended response times into consideration.
2
1
3
4
A0013434
 17 Connection diagram with open outlet, arrow points in the flow direction
1 Pump
2 Flow assembly
3 Open outlet
4 Filter unit
As an alternative to operation in the bypass, it is also possible to direct the sample flow
from a filter unit with an open outlet through the assembly →  17,  19.

Installation Memosens Wave CAS80E
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5.2.5 Cleaning unit
LCAUTION
Residual medium and high temperatures
Risk of injury!
‣When working with parts that are in contact with the medium, protect against residual
medium and elevated temperatures.
‣Wear protective goggles and safety gloves.
Preparatory steps:
1. Mount the compressed air cleaning on the spectrometer before installing in the
measuring point.
2. Remove the spectrometer from the medium if the device is already in the process.
3. Clean the spectrometer.
Spectrometer with 2 mm (0.08 in) or 10 mm (0.4 in) gap:
1.
Insert the elbow plug into the mounting borehole behind the measurement gap as far
as the end stop (hand-tight).
2. Screw the elbow plug tight.
3.
Connect the hose of the compressed air supply at the installation location to the
opening of the elbow plug.
4. Use the hose piece with hose coupling provided with the sensor if desired.
Spectrometer with 50 mm (2 in) gap:
1.
Insert the air distributor into the mounting boreholes behind the measurement gap
as far as the end stop (hand-tight).