TI01185C/07/EN/08.24-00
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2024-04-30

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ServicesTechnical Information
Liquiline System CA80COD
Analyzer for determining chemical oxygen demand (COD)

Integrated controller with digital Memosens technology
Application

Your benefits

The Liquiline System CA80COD is a wet-chemical analyzer forthe almost continuous determination of the chemical oxygen
demand (COD) in liquid media.

• Easy upgrade to measuring station by connecting up to 4
Memosens sensors• High-precision dosing unit
• Automatic measuring range switching within
10 to 5000 mg/l O2• Digital fieldbuses (e.g. PROFINET, PROFIBUS DP, Modbus
TCP, Modbus RS485 and Ethernet IP) and web server

The analyzer is designed for use in the following applications:• Monitoring of the wastewater treatment plant inlet• Control of municipal wastewater treatment• Monitoring of industrial wastewater• Control of industrial wastewater treatment
The "Cabinet, outdoor version" product variant may be set up,
mounted and operated outdoors.

Liquiline System CA80COD

Function and system design
Measuring principle forchemical oxygen demand

As a sum parameter, the chemical oxygen demand, or COD, describes the amount of oxygen that isneeded to fully oxidize all the oxidizable substances in a sample.
To determine the chemical oxygen demand, the chloride ions in the sample must first be removed asthey would interfere with the measurement result. This is done by adding mercuric sulfate. Once thechloride ions have been removed, the sample is digested at a temperature of 175 °C by adding
sulfuric acid, silver sulfate and potassium dichromate. Silver sulfate acts as the catalyst here. The
high temperature and potassium dichromate - a very strong oxidizing agent - ensure that the sample
is digested quickly and completely. The digestion time required can be additionally shortened by thepressure reactor of the CA80COD.

2
1

3

A0022399

1
1
2
3

Measuring cell
LED unit (for measurement/reference)
Photometer cuvette - mixing and reaction vessel
Detector (for measurement/reference)

The oxidizing agent itself is reduced from Cr6+ to Cr3+ during the chemical reaction. This is associatedwith the color of the solution changing from orange to green. The reduction of the chromate and thecolor change are directly proportional to the concentration of oxidizable substances in the sample.
The optical quantification of the reduced chromate amount can therefore be used as an indicator of
the chemical oxygen demand of the sample.
Cross-sensitivity

The ions listed were checked with the specified concentrations. A summary effect has not beenstudied. No cross-sensitivities were observed up to the concentration levels indicated.
20 000 mg/l (ppm)
5000 mg/l (ppm)(NH4)2SO4
NaCl

Oxidizable substances

The substances oxidized by the COD method are primarily organic carbon compounds. Alongside thissome inorganic compounds, such as iodide and nitrite, are also oxidized.

Measuring system

A complete measuring system comprises:• Analyzer Liquiline System CA80COD with the configuration ordered• Reagents and standard solutions (to be ordered separately)• Suction strainer or optional Y strainer with process connection

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Liquiline System CA80COD

11

11

10

10
5

5

1

1
9

9
2

2
78
6

6

3

7

8

4

4

5

5
A0044805

A0044804

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1
2
3
4
5
6
7
8
9
10
11

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Measuring system with Liquiline System
CA80COD and suction strainer
Pressure reactor
Dosing unit
Valve manifold
OutletDilution module (optional)
Suction strainer
MediumWater for optional dilution module
Peristaltic pump
Dispenser
Liquiline System CA80COD

3

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1
2
3
4
5
6
7
8
9
10
11

Measuring system with Liquiline System
CA80COD and Y strainer
Pressure reactor
Dosing unit
Valve manifold
OutletDilution module (optional)
Medium
Y strainer (optional)
Water for optional dilution module
Peristaltic pump
Dispenser
Liquiline System CA80COD

3

Liquiline System CA80COD

Customer-specific solution
Prior to analysis, the sample must be prepared at the customer site so that it is and homogeneous(representative sample). The sample can be supplied to an external collecting vessel . The customerspecific sample preparation system must have its own individual control unit.
The version of the Liquiline System CA80 as a self-priming device does not have a collecting
vessel with level detection. For this reason, a continuous supply of sample must be guaranteedon the process side.
Y strainer (optional)

With the Y strainer it is possible to directly take samples containing particles from the pipes. It istherefore also suitable for the COD analysis procedure where particles up to a certain size must also
be included in the analysis.

1

2

3
4
A0030826

1
2
3
4

4

Medium
Y strainer
Pipe clamps
Adhesive fittings ID 40 mm, straight

Endress+Hauser

Liquiline System CA80COD

Device architecture
Function diagram

31

mA

1

32

31

2

32

3

42

mA

7

Alarm

41

43

4

87
88
97
98

85

87
88
97
98

85

8

86

optional

4
optional

31

2

41

mA

42

32

31

2

8

86

9

43

41

mA

42

32

9

43

optional

optional
23

41

mA

42

5

9

24
43

23

41

mA

42

5

9

24
43

optional

optional
+

45

47

–

46

48

45

47

46

48

+
–
+
–
+
optional –

10

91
92
91
92

6
optional
A0021099

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Block diagram CA80

1

Current output 1:1

6

Modbus/Ethernet (optional)

2

Current outputs

7Service interface

3

Alarm relay

8

Power supply, fixed cable sensors

42 x Memosens input (1 x optional)

9

2 or 4 x relays (optional)

5

2 x current input (optional)

10

2 digital inputs and outputs (optional)

5Liquiline System CA80COD

Slot and port assignment

Slot
BASE2-E

A0040671

2

1

2

1

Ports

7

2

1

*

Slots and ports on thedisplay
Analyzer measured value(parameter-specific)

A0044869
A0044868

5

Slot and port assignment

6

Slot and port assignment• Inputs are assigned to measuring channels in the ascending order of the slots and ports.
In the example above:"CH1: 1:1 pH glass" means:
Channel 1 (CH1) is slot 1 (basic module) : Port 1 (input 1), pH glass sensor• Outputs and relays are named according to their function, e.g. "current output", and are displayedin ascending order with the slot and port numbers• Display shows SP1: analyzer measuring channel 1 with sampling point SP1 (measured value
display is parameter-specific; is not illustrated in the example)

Communication and data processing
Communication protocols:• Fieldbus systems• PROFIBUS DP (Profile 3.02)• Modbus TCP or RS485• PROFINET• EtherNet/IP• Configuration via Ethernet
Extension module 485DP/485MB and current outputs
For PROFIBUS DP and Modbus RS485 communication protocols:
A maximum of 2 current outputs can be used in parallel.
Ethernet functionality via Base2 module and current outputs
A maximum of 6 current outputs can be used in parallel.
Bus termination on the device• Via slide switch at bus module 485DP/485MB• Displayed via LED "T" on bus module 485DP/485MB

Dependability
Reliability thanks to
Memosens technology

6

Memosens
Memosens makes your measuring point safer and more reliable:• Non-contact, digital signal transmission enables optimum galvanic isolation• Completely watertight• Sensor can be calibrated in a lab, thus increasing the availability of the measuring point in theprocess• Intrinsically safe electronics mean operation in hazardous areas is not a problem.
• Predictive maintenance thanks to recording of sensor data, e.g.:• Total hours of operation• Hours of operation with very high or very low measured values• Hours of operation at high temperatures• Number of steam sterilizations• Sensor condition
MEMO

SENS

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Liquiline System CA80COD

Ease of maintenance

Modular design
The modular analyzer can be easily adapted to suit your needs:• Retrofit extension modules for new or extended range of functions, e.g. current outputs, relays anddigital communication• Upgrade to measuring station with digital sensors with Memosens technology• Optional: M12 sensor connector for connecting any kind of Memosens sensor
Data storage• Independent, integrated ring memories (FIFO) or stack memories for recording:• An analog value (e.g. flow, pH value, conductivity)• Events (e.g. power failure)• Analyzer data logbook• Scan time: automatically adjusted to the measuring interval• Max. 2 data logbooks• 20 000 entries per logbook• Graphic display (load curves) or numerical list
• Factory setting: enabled for all channels, ring memory (FIFO)• Data logbooks for digital sensors:• Adjustable scan time: 1 to 3600 s (1 h)• Max. 8 data logbooks• 150,000 entries per logbook• Graphic display (load curves) or numerical list
• Calibration logbook: max. 75 entries• Hardware logbook:• Hardware configuration and modifications• Max. 125 entries• Version logbook:• Software updates among other things• Max. 50 entries• Event logbook• Analyzer event logbook• Analyzer-specific events• Max. 19 500 entries, ring memory or fill-up buffer for recording• Operations logbook: max. 250 entries• Diagnostic logbook: max. 250 entries

A0024359

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Data logbook: graphic representation on the display

Mathematical functions (virtual process values)
In addition to "real" process values, which are provided by connected physical sensors or analog
inputs, mathematical functions can be used to calculate a maximum of 6 "virtual" process values.
The "virtual" process values can be:• Output via a current output or a fieldbus• Used as a controlled variable• Assigned as a measured variable to a limit switch• Used as a measured variable to trigger cleaning• Displayed in user-defined measuring menus

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7Liquiline System CA80COD

The following mathematical functions are possible:• Calculation of pH from two conductivity values according to VGB Standard 405, e.g. in boiler
feedwater• Difference between two measured values from different sources, e.g. to monitor membranes• Differential conductivity, e.g. to monitor the efficiency of ion exchangers• Degassed conductivity, e.g. for process controls in power plants• Redundancy to monitor two or three redundant sensors• rH calculation based on the measured values of a pH and an ORP sensor• Formula editor as a powerful mathematics tool and for Boolean operations with up to 3 measured
valuesFieldCare
Configuration and asset management software based on FDT/DTM technology• Complete device configuration when connected via FXA291 and service interface• Access to a number of configuration parameters and identification, measuring and diagnostic datawhen connected via HART modem• Logbooks can be downloaded in CSV format or binary format for "Field Data Manager" software
Field Data Manager
Visualization software and database for measuring, calibration and configuration data
• SQL database which is protected against manipulation• Functions to import, save and print out logbooks• Load curves to display measured values

A0016009

9

Field Data Manager: load curve display

SD card
The exchangeable storage medium enables:• Quick and easy software updates and upgrades• Quick and easy updates and upgrades to measuring parameter lists• Data storage of internal device memory (e.g. logbooks)• Transfer of complete configurations to a device with an identical setup (backup function)• Transfer of configurations without the TAG and bus address to devices with an identical setup(copy function)
Endress+Hauser offers industry-approved SD cards as accessories. These memory cards provide
maximum data security and integrity.
Other SD cards can also be used. However, Endress+Hauser does not accept any responsibility for thedata security of such cards.

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Liquiline System CA80COD

Self-monitoring functions

Electronics• Current inputs are deactivated in the event of overcurrent and reactivated once the overcurrent
stops.
• Board voltages are monitored and the board temperature is also measured.
Counter• Counters monitor consumables such as reagents, pump and valve hoses or dispensers.
• Waste volume
Photometer• Automatic temperature monitoring• Active monitoring of communication between the photometer module and the analyzer electronics
Leak sensor in the housing

Data security

All settings, logbooks etc. are stored in a non-volatile memory to ensure that the data are retainedeven in the event of a disruption to the power supply.

IT security

We only provide a warranty if the device is installed and used as described in the Operating
Instructions. The device is equipped with security mechanisms to protect it against any inadvertentchanges to the device settings.
IT security measures in line with operators' security standards and designed to provide additional
protection for the device and device data transfer must be implemented by the operators themselves.

Input
Measured variables

CSBcr O2 [mg/l, ppm]

Measuring range

CA80COD-**C4:
CA80COD-**C5:
CA80COD-**C6:

Types of input• 1 measuring channel (analyzer main parameter)• 1 to 4 digital sensor inputs for sensors with Memosens protocol (optional)• Analog current inputs (optional)• Binary inputs (optional)

Input signal

Depending on version
2 x 0/4 to 20 mA (optional), passive, potentially isolated

Current input, passiveSpan> 0 to 20 mA

0 to 500 mg/l O2, automatic measuring range switching
0 to 5000 mg/l O2, automatic measuring range switching
0 to 5000 mg/l O2 + dilution module (1:4)

Signal characteristic
LinearInternal resistanceNon-linear
Test voltage
500 V
Cable specification(for optional sensors with
Memosens technology)

Cable type
Memosens data cable CYK10 or sensor fixed cable, each with cable end sleeves or M12 round-pin
connector (optional)
Cable lengthMax. 100 m (330 ft)

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9Liquiline System CA80COD

OutputOutput signal

Depending on version:• 2 x 0/4 to 20 mA, active, potentially isolated (standard version)• 4 x 0/4 to 20 mA, active, potentially isolated (version with 2 additional analog outputs)• 6 x 0/4 to 20 mA, active, potentially isolated (version with 4 additional analog outputs)• Binary outputs
PROFIBUS DP/RS485
Signal encoding

EIA/TIA-485, PROFIBUS DP-compliant acc. to IEC 61158

Data transmission rate

9.6 kBd, 19.2 kBd, 45.45kBd, 93.75 kBd, 187.5 kBd, 500 kBd,
1.5 MBd, 6 MBd, 12 MBd

Galvanic isolation

Yes

Connectors

Spring terminal (max. 1.5 mm), bridged internally (T‐function),
optional M12

Bus termination

Internal slide switch with LED display

Modbus RS485
Signal encoding

EIA/TIA-485

Data transmission rate

2,400, 4,800, 9,600, 19,200, 38,400, 57,600 and 115,200
baud

Galvanic isolation

Yes

Bus termination

Internal slide switch with LED display

Web server and Modbus TCP
Signal encodingIEEE 802.3 (Ethernet)

Data transmission rate

10 / 100 MBd

Galvanic isolation

Yes

Connection

RJ45, M12 optional

IP address

DHCP or configuration using menu

EtherNet/IP
Signal encodingIEEE 802.3 (Ethernet)

Data transmission rate

10 / 100 MBd

Galvanic isolation

Yes

Connection

RJ45, M12 optional (D-encoded)

IP address

DHCP (default) or configuration via menu

PROFINET

10Signal encodingIEEE 802.3 (Ethernet)

Data transmission rate

100 MBd

Galvanic isolation

Yes

Connection

RJ45

Name of station

Via DCP protocol using the configuration tool (e.g. Siemens
PRONETA)IP address

Via DCP protocol using the configuration tool (e.g. Siemens
PRONETA)

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Liquiline System CA80COD

Signal on alarm

Adjustable, as per NAMUR Recommendation NE 43• In measuring range 0 to 20 mA:
Failure current from 0 to 23 mA• In measuring range 4 to 20 mA:
Failure current from 2.4 to 23 mA• Factory setting for failure current for both measuring ranges:
21.5 mA

Load

Max. 500 ΩTransmission behavior

LinearCurrent outputs, active
Span

0 to 23 mA

Signal characteristic

LinearElectrical specification

Output voltage
Max. 24 V
Test voltage
500 V

Cable specification

Cable type
Recommended: shielded cable
Cable specification
Max. 2.5 mm2 (14 AWG)

Relay outputs
Electrical specification

Relay types• 1 single-pin changeover contact (alarm relay)• 2 or 4 single-pin changeover contacts (optional with extension modules)
Maximum load
• Alarm relay: 0.5 A• All other relays: 2.0 A
Relay switching capacity
Base module (Alarm relay)
Switching voltage

Load (max.)

Switching cycles (min.)230 V AC, cosΦ = 0.8 to 1

0.1 A

700,000

0.5 A

450,000

0.1 A

1,000,000

0.5 A

650,000

0.1 A

500,000

0.5 A

350,000

115 V AC, cosΦ = 0.8 to 1

24 V DC, L/R = 0 to 1 ms

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11Liquiline System CA80COD

Extension module
Switching voltage

Load (max.)

Switching cycles (min.)230 V AC, cosΦ = 0.8 to 1

0.1 A

700,000

0.5 A

450,000

2A

120,000

0.1 A

1,000,000

0.5 A

650,000

2A

170,000

0.1 A

500,000

0.5 A

350,000

2A

150,000

115 V AC, cosΦ = 0.8 to 1

24 V DC, L/R = 0 to 1 ms

Minimum load (typical)• Min. 100 mA at 5 V DC
• Min. 1 mA at 24 V DC
• Min. 5 mA at 24 V AC
• Min. 1 mA at 230 V AC

Protocol-specific data
PROFIBUS DP

Modbus RS485

12

Manufacturer ID

11h

Device type

155Eh

Profile version

3.02

Device database files (GSD files)

www.endress.com/profibus
Device Integration Manager DIM

Output variables

16 AI blocks, 8 DI blocks

Input variables

4 AO blocks, 8 DO blocks

Supported features• 1 MSCY0 connection (cyclical communication, master class 1
to slave)• 1 MSAC1 connection (acyclical communication, master class 1
to slave)• 2 MSAC2 connections (acyclical communication, master class
2 to slave)• Device lock: The device can be locked using the hardware orsoftware.
• Addressing using DIL switches or software• GSD, PDM DD, DTM

ProtocolRTU/ASCII

Function codes

03, 04, 06, 08, 16, 23

Broadcast support for function codes

06, 16, 23

Output data

16 measured values (value, unit, status), 8 digital values (value,
status)

Input data

4 setpoints (value, unit, status), 8 digital values (value, status),
diagnostic information

Supported features

Address can be configured using switch or software

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Liquiline System CA80COD

Modbus TCP

Web server

EtherNet/IP

TCP port

502

TCP connections

3

ProtocolTCP

Function codes

03, 04, 06, 08, 16, 23

Broadcast support for function codes

06, 16, 23

Output data

16 measured values (value, unit, status), 8 digital values (value,
status)

Input data

4 setpoints (value, unit, status), 8 digital values (value, status),
diagnostic information

Supported features

Address can be configured using DHCP or software

The web server enables full access to the device configuration, measured values, diagnostic
messages, logbooks and service data via standard WiFi/WLAN/LAN/GSM or 3G routers with a userdefined IP address.
TCP port

80

Supported features• Remote-controlled device configuration(1 session)• Save/restore device configuration (via SD card)• Logbook export (file formats: CSV, FDM)
• Access to web server via DTM or Internet Explorer• Login• Web server can be switched off

Log

EtherNet/IP

ODVA certification

Yes

Device profile

Generic device (product type: 0x2B)

Manufacturer ID

0x049Eh

Device type ID

0x109F

Polarity

Auto-MIDI-X

Connections

CIP

12

I/O

6

Explicit message 6
Multicast

3 consumers

Minimum RPI

100 ms (default)

Maximum RPI

10000 ms

System integration

EtherNet/IP

EDS

Rockwell

Add-on-Profile Level 3, Faceplate for Factory
Talk SE

Input (T → O)

Device status and diagnostic message withhighest priority

IO data

Measured values:• 16 AI (analog input) + Status + Unit
• 8 DI (discrete input) + Status
Output (O → T)

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Actuating values:• 4 A0 (analog output) + status + unit
• 8 DO (discrete output) + Status13

Liquiline System CA80COD

PROFINET

Protocol"Application layer protocol for decentral device periphery anddistributed automation", PNIO Version 2.34

Communication type

100 MBit/s

Conformance Class

Conformance Class B

Netload Class

Netload Class II

Baud rate

Automatic 100 Mbps with full-duplex detection

Cycle times

From 32 ms

Device profile

Application interface identifier 0xF600
Generic device

PROFINET interface

1 port, Realtime Class 1 (RT_CLASS_1)

Manufacturer ID

0x11h

Device type ID

0x859Fh

Device description files (GSD)

Information and files under:• www.endress.com
On the product page for the device: Documents/Software →Device drivers• www.profibus.com
On the website under Products/Product Finder

Polarity

Auto-polarity for automatic correction of crossed TxD and RxD
pairs

Supported connections• 1 x AR (IO Controller AR)• 1 x AR (IO-Supervisor Device AR connection allowed)• 1 x Input CR (Communication Relation)• 1 x Output CR (Communication Relation)• 1 x Alarm CR (Communication Relation)

Configuration options for measuring device• Web browser• Manufacturer-specific software (FieldCare, DeviceCare)• Device master file (GSD), can be read out via the integrated
web server of the measuring device

Configuration of the device name

DCP protocol

Supported functions• Identification & maintenance
Simple device identification via:
• Process control system• Nameplate• Measured value status
The process variables are communicated with a measured
value status• Blinking feature (FLASH_ONCE) via the local display forsimple device identification and assignment• Device operation via operating tools (e.g. FieldCare,
DeviceCare)

System integration

For information on system integration, see the Operating
Instructions• Cyclic data transmission• Overview and description of the modules• Status coding• Startup configuration• Factory setting

Power supply
Supply voltage• 100 to 120 V AC / 200 to 240 V AC
• 50 or 60 Hz

Fieldbus connection

Supply voltage: not applicable

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Liquiline System CA80COD

Power consumption

All versions except "Outdoor" version
250 VA"Outdoor" version
250 VA + 650 VA per hose heater, max. 900 VA (version with cooling) 1)

Cable entries• 4 x bores for M16, G3/8, NPT3/8", Memosens connection 2)• 4 x bores for M20, G1/2, NPT1/2"

Cable specification

Cable gland

Permitted cable diameterM16x1.5 mm

4 to 8 mm (0.16 to 0.32")

M12x1.5 mm (for order version M12 socket for Memosens sensors)

2 to 5 mm (0.08 to 0.20")

M20x1.5 mm

6 to 12 mm (0.24 to 0.48")

NPT³/₈"4 to 8 mm (0.16 to 0.32")

G³/₈

4 to 8 mm (0.16 to 0.32")

NPT½"

6 to 12 mm (0.24 to 0.48")

G½

7 to 12 mm (0.28 to 0.48")

Cable glands mounted at the factory are tightened with 2 Nm.

Connecting optional modules

With extension modules you can purchase additional functions for your device.
NOTICE
Unacceptable hardware combinations (due to conflicts in power supply)
Incorrect measurements or total failure of the measuring point as a result of heat build-up or
overloading‣ Find out if the planned upgrade of your device results in a permitted hardware combination(configurator on www.endress.com/CA80COD).
‣ A maximum of eight current inputs and current outputs is permitted.
‣ A maximum of two "DIO" modules is permitted.
‣ Please contact your Endress+Hauser sales center should you have any questions.
Cable bushings and possible cable diameters

1)
2)

The power value indicated on the nameplate refers to the power consumption when commissioning at 5˚C (41 °F) after an operating time of one
minute.
In the case of the "Outdoor" version, 2 bores are occupied; for this reason only 2 Memosens sensors are possible

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15Liquiline System CA80COD

Overview of all the optional modules
Module name4R

2DS

• 2 x 0/4 to 20 mA
analog outputs• 2 relays• Order No.
71111053• 2 relays• Order No.
71125375• 4 relays• Order No.
71125376• 2 digital sensor• 2 digital inputs
inputs• 2 digital outputs• 2 power supply
with auxiliary
systems for digital
voltagesensors• Order No.
• Order No.
71135638
71135631

42 1
43

42
43

16

Relay 1
Relay 4

Relay

43

GY
PK
GY

47
48

+ 1
–

47 +
48

2

–

42
43
41

41
42 2

43
41

PK

42
43
41
42
43

+ 87 BN– 88 WH
A 97 GN
98 YE
B+ 87 BN– 88 WH
A 97 GN
98 YE
B

Sensor 1

Relay

41

43
41

42

85
1+
– 86
85
2+
– 86

Sensor 2

32 –2

Relay 231 +42

Relay 3

32 –

41

41

Relay 1

+1

Relay 2

31

DIO

Sensor supply

2R

0/4 ... 20 mA

AOR

45 +
1
46 –
45 +
46 – 2
91 +

1
–
91 +
2
92
–
92

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Liquiline System CA80COD

Module name
4AO

2AI

• 2 x 0/4 to 20 mA
analog outputs• Order No.
71135632• 4 x 0/4 to 20 mA
analog outputs• Order No.
71135633• 2 x 0/4 to 20mA
analog inputs• Order No.
71135639

485DP

485MB

• 5V power supply
for PROFIBUS DP
termination• RS485 for
PROFIBUS DP• Order No.
71575177• RS485 for
Modbus• Order No.
71575178

32

32

–

–

2

23+
24

+3

31 +
32

2

–

4

–

–

1
2
4
8
16
32
64
128/SW
Serviceon
DIP switch

31 +

31

0/4 ... 20 mA

–

+

PWR

2

–

24

T COM SF BF

32

23
1

on
DIP switch

31+

32

+1

PWR

–

31

T COM SF BF

32+1

0/4 ... 20 mA

0/4 ... 20 mA

31

0/4 ... 20 mA

MB/RS485

24 23

24 23

2AO

1
2
4
8
16
32
64
128/SW
Service

Termi- DGND
nation VP

82

Termi- DGND
nation VP

82

81

96

96'

96

96'

95'

95

99'

99

95
99

DP/
RS485

MB/
RS485

81

95'
99'

PROFIBUS DP (module 485DP)
Contacts 95, 96 and 99 are jumpered in the plug. This ensures that PROFIBUS communication
is not interrupted if the connector is disconnected.

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17Liquiline System CA80COD

Sensor connection (optional)

Sensors with Memosens protocol
Sensor types

Sensor cable

Sensors

Digital sensors without
additional internal power
supplyWith plug-in
connection andinductive signaltransmission• pH sensors• ORP sensors• Combined sensors• Oxygen sensors (amperometric and optical)• Conductivity sensors with conductive measurementof conductivity• Chlorine sensors (disinfection)

Fixed cable

Conductivity sensors with inductive measurement ofconductivity

Fixed cable• Turbidity sensors• Sensors for interface measurement• Sensors for measuring the spectral absorption
coefficient (SAC)• Nitrate sensors• Optical oxygen sensors• Ion-sensitive sensors

Digital sensors withadditional internal power
supplyPerformance characteristics
Maximum measured error 3)

According to potassium hydrogen phthalate test
0 to 30 mg/l (ppm)

1.5 mg/l (ppm) 1)> 30 to 50 mg/l (ppm)

3 mg/l (ppm) 1)> 50 to 100 mg/l (ppm)

6 mg/l (ppm) 2)> 100 to 200 mg/l (ppm)

8 mg/l (ppm) 2)> 200 to 400 mg/l (ppm)

4% of reading> 400 to 5000 mg/l (ppm)

3% of reading

1)
2)

Calibrated at 50 mg/l (ppm)
Calibrated at 500 mg/l (ppm)

Maximum measurement
error for sensor inputs→ Documentation of the connected sensor

Maximum measurement
error for current inputs andoutputs

Typical measured errors:< 20 μA (with current values < 4 mA)< 50 μA (with current values 4 to 20 mA)
at 25 °C (77° F) in each case
Additional measured error depending on the temperature:< 1.5 μA/K

LOQ (limit of quantification)

15 mg/l (ppm) O2

Repeatability 3)± 5 % of measured value

Repeatability of sensor
inputs→ Documentation of the connected sensor

Measuring intervalContinuous (approx. 55 min), adjustable 30 min to 24 h3)

18

Measured with CA80COD-AAxxxxx according to HJ 377-2019. Measurement errors include all the uncertainties of the analyzer. They do notinclude the uncertainties from the standard solutions used as a reference.

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Liquiline System CA80COD

Digestion time

3 to 120 min

Sample requirement

8 ml (0.27 fl oz)/measurement

Reagent requirement

Given a measuring interval of 1 hour, one set of reagents lasts for 50 days

Standard requirement• Zero standard: given a calibration interval of 48 h, a cleaning interval of 24 h and a sample hoselength of 3 m (9.84 ft) approx. 500 ml (16.9 fl.oz) per month (without dilution module)• Standard 1: given a calibration interval of 48 h approx. 90 ml (3.04 fl.oz) per month (without
dilution module)

Dilution water requirement

Approx. 20 ml (0.68 fl.oz) per measurement
Demineralized water is recommended for expected sample concentrations of < 50 mg/l (ppm).

Calibration interval

1 h to 90 days, depending on the application and ambient conditions

Maintenance interval

Once weekly, depending on the application

Maintenance effort• Weekly: visual inspection• Monthly: 1 hour

Mounting
Mounting location

Note the following when erecting the device:‣ If mounting on a wall, make sure that the wall has sufficient load-bearing capacity and is fully
perpendicular.

‣ If mounting on a base, set up the device on a level surface. Installing on a base is only permitted
‣
‣
‣
‣
‣
‣
‣
‣
Installation instructions

Endress+Hauser

indoors.
Protect the device against additional heating (e.g. from heaters).
Protect the device against mechanical vibrations.
Protect the device against corrosive gases, e.g. hydrogen sulfide (H2S) .
Make sure to pay attention to the maximum height difference and the maximum distance fromthe sampling point.
Ensure that the unit can drain freely, without any siphoning effects.
Make sure air can circulate freely at the front of the housing.
Open analyzers (i.e. analyzers that are supplied without a door) may only be set up in closed
areas or in a protective cabinet or similar facility.
"Outdoor" version only: Post mounting is recommended for outdoor installation.

The device can be installed in the following ways:• Mounted on a wall
• Mounted on a base
• Post mounting / on a post (accessory)19

Liquiline System CA80COD

Spacing required for installing analyzer≥330(12.99)≥100 (3.94)≤116 °

A0036774

 10

Minimum spacing required for mounting.
Engineering unit mm (in).

A0036775

 11

Maximum opening angle

Spacing required for installing wall-mount version

750 (29.53)

Ø 11 (0.43)

Ø 10.7 (0.42)
120 (4.72)
A0036779 12

Holder unit dimensions. Engineering unit mm (in)Environment
Ambient temperature range

All housing versions with the exception of the outdoor version+5 to +40 °C (41 to 104 °F)
Outdoor version-20 to +40 °C (-4 to 104 °F)

Storage temperature–20 to 60 °C (–4 to 140 °F)

Relative humidity

10 to 95 %, non-condensing

Degree of protection

IP55 (cabinet, analyzer stand), TYPE 3R (cabinet, analyzer stand)20

Endress+Hauser

Liquiline System CA80COD

Electromagnetic
compatibility 4)

Interference emission and interference immunity as per EN 61326-1, class A for industrial areas

Electrical safety

According to EN/IEC 61010-1:2010, Class I equipment
Low voltage: overvoltage category II
For installations up to 2000 m (6500 ft) above MSL

Pollution degree

Pollution level 2

Process
Sample temperature

4 to 40 °C (39 to 104 °F)

Consistency of the sample

Low solids content, aqueous, homogenizedSample supply

Analyzer (without optional Y strainer):
Unpressurized
Y strainer (optional):• Permitted pressure range: max. 4 bar (58.01 psi)
• Flow: ensure sufficient flow for a Y strainer that is completely filled 5)

Mechanical construction
Dimensions

530 (20.87)

793 (31.22)

463 (18.23)

A0028820

 13

4)
5)

Liquiline System CA80 closed version, dimensions in mm (in)Sufficient mains quality is required to operate the product as intended.
The greater the flow the greater the self-cleaning effect of the suction line. Preferred: > 1 m³/h

Endress+Hauser

21Liquiline System CA80COD

417 (16.42)

793 (31.22)

530 (20.87)

A0030419

Liquiline System CA80 open version, dimensions in mm (in)930 (36.61)

1723 (67.83)

 14

654 (25.74)
A0028821

 15

22Liquiline System CA80 with base, dimensions in mm (in)Endress+HauserØ 74 (2.91)

163,43 (6.43)

Liquiline System CA80COD

96 (3.78)

Ø 7 (0.28)

118 (4.65)
A0030527

 16

Y strainer (optional), dimensions in mm (inch)

WeightApprox. 40 kg (88 lbs)

Materials

Parts not in contact with medium
Cabinet version, exterior cover
Open installation, exterior coverCabinet version, interior lining
Open installation, interior lining

ASA + PC

PP

Window

Safety glass, coated

Reagent container

PP

Insulation

EPP (extruded PP)

Base, analyzer standPowder-coated sheet steelParts in contact with medium
Dispenser body
Piston seal

PP
TPE

Dosing unit
• Valve manifold• Valve seals• Optical tube

• ETFE• FKM• Borosilicate glass

Hoses

Process connection

Endress+Hauser• PTFE• Sample hose, hose from pump to dilution vessel:
PharMedReactor• Reactor valves• Optical tube
• Seal• PVDF• Borosilicate glass• FFKM

Dilution vessel (optional)PE

Y strainer

PVC-U

Sample inlet:
Dilution water:
Outlet:Hose gland for rigid hoses with OD 3.2 mm
Hose gland for rigid hoses with OD 3.2 mm
Hose gland for rigid hoses with OD 6 mm

23

Liquiline System CA80COD

Hose entries

4 x bores for M32 for sample inflow and outflow

Hose specification

Analyzer:• Clearance: max. 5.0 m (16.4 ft)• Height: max. 3 m (9.8 ft)• Hose ID: 1.6 mm (¹/16 in)Y strainer (optional):• Hose to analyzer:• ID 1.6 mm (¹/16 in)• OD 3.2 mm (¹/₈ in)• Hose to process:• ID 0.8 mm (¹/32 in)• OD 1.6 mm (¹/16 in)Process connection, optional
Y strainer

Adhesive fitting, ID 40 mm, straightOperability
Operation concept

The simple and structured operating concept sets new standards:• Intuitive operation with the navigator and soft keys
• Fast configuration of application-specific measurement options• Easy configuration and diagnosis thanks to plain-text display• All languages that can be ordered are available in every device

 17

Display

24

Easy operation

 18

Plain-text menu

Graphic display:• Resolution: 240 x 160 pixel• Back light with switch-off function• Red display background for alarms alerts users to errors• Transflective display technology for maximum contrast even in bright environments

Endress+Hauser

Liquiline System CA80COD

Via HART (e.g. via HART modem and FieldCare)

31
32

250 ... 500 Ω

Remote operation

2
USB

1

3
A0039620

 19
1
2
3

HART using modem

Device module Base2-E: current output 1 with HART
HART modem for connection to PC, e.g. Commubox FXA191 (RS232) or FXA195 1) (USB)
HART handheld terminal

1) Switch position "on" (substitutes the resistor)

Via PROFIBUS DP
Master class 1(PLC, DCS)
Master class 2 (FieldCare, PDM)

TPROFIBUS DP(RS485)T

FXA291

Ethernet

A0039617

 20
T

Endress+Hauser

PROFIBUS DP

Terminating resistor

25

Liquiline System CA80COD

Via Modbus RS485
Modbus Master / Gateway

T

Modbus RS485(RTU, ASCII)TFXA291

Ethernet

A0039615

 21
TModbus RS485

Terminating resistor

Via Ethernet: web server/Modbus TCP/PROFINET/Ethernet/IP
Ethernet client
FieldCare/
Webbrowser
Ethernet

FXA291

A0039616 22Language packages

26

Modbus TCP or EtherNet/IP or PROFINET

The language selected in the product structure is the operating language preset at the factory. Allother languages can be selected using the menu.
• English (US)• German• Chinese (Simplified, PR China)• Czech• Dutch• French• Italian• Japanese• Polish• Portuguese• Russian• Spanish• Turkish

Endress+Hauser

Liquiline System CA80COD• Hungarian• Croatian• Vietnamese
The availability of other languages can be checked via the product structure at www.endress.com/
ca80cod.

Certificates and approvals
Current certificates and approvals for the product are available at www.endress.com on the relevant
product page:1.

Select the product using the filters and search field.

2.

Open the product page.

3.

Select Downloads.

Order information
Product pagewww.endress.com/ca80cod

Product Configurator

1.

Configure: Click this button on the product page.

2.

Select Extended selection.
 The Configurator opens in a separate window.

3.

Configure the device according to your requirements by selecting the desired option for eachfeature.
 In this way, you receive a valid and complete order code for the device.

4.

Accept: Add the configured product to the shopping cart.
For many products, you also have the option of downloading CAD or 2D drawings of theselected product version.

5.

Scope of delivery

CAD: Open this tab.
 The drawing window is displayed. You have a choice between different views. You candownload these in selectable formats.

The scope of delivery comprises:• 1 analyzer in the version ordered with optional hardware• 1 x Brief Operating Instructions (hard copy)• 1 x Maintenance Manual• Suction strainer• Cleaning brush for the dosing unit
• Optional accessories

Accessories
The following are the most important accessories available at the time this documentation was
issued.
Listed accessories are technically compatible with the product in the instructions.

Endress+Hauser

1.

Application-specific restrictions of the product combination are possible.
Ensure conformity of the measuring point to the application. This is the responsibility of theoperator of the measuring point.

2.

Pay attention to the information in the instructions for all products, particularly the technical
data.

3.

For accessories not listed here, please contact your Service or Sales Center.

27

Liquiline System CA80COD

Device-specific accessories

Installation accessories
Kit, post with bracket CA80, outd.
• Post 60 x 60 x 1800 mm, stainless steel 1.4571• Post mount clamp CA80xx• Kit installation instructions• Order No. 71458285
Consumables
1.

https://portal.endress.com/webapp/SparePartFinder

2.

Specify the serial number or product code.

The following consumables are available:• Reagents and standard solutions CY80COD• CAC880, inlet and outlet hoses for CA80
Maintenance kit CAV880
https://portal.endress.com/webapp/SparePartFinder
Maintenance kit for CA80 for 1 year
Standard• Waste valve hose (PharMed)• Complete pump head, excluding motor• Dispenser with dispenser holder, 2 x 10 ml• Coupling with cone
• O-ring set, reactor• O-ring of cleaning opening• Filter mats (2x)
• Inlet hose (PTFE, black)• Tubing cutter
Additionally for the wide measuring range• Hose for dilution water (PTFE, black)• Dilution valve hose (PharMed)• Complete pump head, excluding motor• Coupling with cone
• Dilution vessel with plug
Optional• O-ring set, dosing unit
• In-process hoses (PTFE, white)• Hose connector• Reactor cuvette with heating wire, O-rings, T-sensor• Dosing tubes with O-rings
Upgrade kits CAZ880
Kit for upgrade with dilution module for high measuring range• Carrier board with dilution module• Activation code
• Order No. CAZ880-CCCC
Kit for upgrade for low measuring range• Activation code
• Order No. CAZ880-CCCB
Sensors
pH glass electrodes
Memosens CPS11E• pH sensor for standard applications in process and environmental engineering• Digital with Memosens 2.0 technology• Product Configurator on the product page: www.endress.com/cps11e
Technical Information TI01493C

28

Endress+Hauser

Liquiline System CA80COD

Memosens CPS41E• pH sensor for process technology• With ceramic junction and KCl liquid electrolyte• Digital with Memosens 2.0 technology• Product Configurator on the product page: www.endress.com/cps41e
Technical Information TI01495C
Memosens CPS71E• pH sensor for chemical process applications• With ion trap for poison-resistant reference• Digital with Memosens 2.0 technology• Product Configurator on the product page: www.endress.com/cps71e
Technical Information TI01496C
Memosens CPS91E• pH sensor for heavily polluted media• With open aperture• Digital with Memosens 2.0 technology• Product Configurator on the product page: www.endress.com/cps91e
Technical Information TI01497C
Memosens CPS31E• pH sensor for standard applications in drinking water and swimming pool water• Digital with Memosens 2.0 technology• Product Configurator on the product page: www.endress.com/cps31e
Technical Information TI01574C
Ceramax CPS341D• pH electrode with pH-sensitive enamel• Meets highest demands of measuring accuracy, pressure, temperature, sterility and durability• Product Configurator on the product page: www.endress.com/cps341d
Technical Information TI00468C
Memosens CPF81E• pH sensor for mining operations, industrial water and wastewater treatment• Digital with Memosens 2.0 technology• Product Configurator on the product page: www.endress.com/cpf81e
Technical Information TI01594C
ORP electrodes
Memosens CPS12E• ORP sensor for standard applications in process and environmental engineering• Digital with Memosens 2.0 technology• Product Configurator on the product page: www.endress.com/cps12e
Technical Information TI01494C
Memosens CPS42E• ORP sensor for process technology• Digital with Memosens 2.0 technology• Product Configurator on the product page: www.endress.com/cps42e
Technical Information TI01575C
Memosens CPS72E• ORP sensor for chemical process applications• Digital with Memosens 2.0 technology• Product Configurator on the product page: www.endress.com/cps72e
Technical Information TI01576C

Endress+Hauser

29Liquiline System CA80COD

Memosens CPS92E• ORP sensor for use in heavily polluted media• Digital with Memosens 2.0 technology• Product Configurator on the product page: www.endress.com/cps92e
Technical Information TI01577C
Memosens CPF82E• ORP sensor for mining operations, industrial water and wastewater treatment• Digital with Memosens 2.0 technology• Product Configurator on the product page: www.endress.com/cpf82e
Technical Information TI01595C
Conductivity sensors with inductive measurement of conductivity
Indumax CLS50D• High-durability inductive conductivity sensor• For standard and hazardous area applications• With Memosens technology• Product Configurator on the product page: www.endress.com/cls50d
Technical Information TI00182C
Conductivity sensors with conductive measurement of conductivity
Memosens CLS21E• Digital conductivity sensor for media with medium or high conductivity• Conductive measurement• With Memosens 2.0• Product Configurator on the product page: www.endress.com/cls21e
Technical Information TI01528C
Oxygen sensors
Memosens COS51E• Amperometric oxygen sensor for water, wastewater and utilities• Digital with Memosens 2.0 technology• Product Configurator on the product page: www.endress.com/cos51e
Technical Information TI01620C
Memosens COS81E• Hygienic optical oxygen sensor with maximum measurement stability over multiple sterilization
cycles• Digital with Memosens 2.0 technology• Product Configurator on the product page: www.endress.com/cos81e
Technical Information TI01558C
Memosens COS22E• Hygienic amperometric oxygen sensor with maximum measurement stability over multiple
sterilization cycles• Digital with Memosens 2.0 technology• Product Configurator on the product page: www.endress.com/cos22e
Technical Information TI01619C
Chlorine dioxide and chlorine sensors
Memosens CCS50E• Membrane-covered amperometric sensor for chlorine dioxide• With Memosens technology• Product Configurator on the product page: www.endress.com/ccs50e
Technical Information TI01353C

30

Endress+Hauser

Liquiline System CA80COD

Memosens CCS51E• Sensor for measuring free available chlorine• Product Configurator on the product page: www.endress.com/ccs51e
Technical Information TI01423C
Ion-selective sensors
ISEmax CAS40D• Ion selective sensors• Product Configurator on the product page: www.endress.com/cas40d
Technical Information TI00491C
Turbidity sensors
Turbimax CUS51D• For nephelometric measurements of turbidity and solids in wastewater• 4-beam scattered light method• With Memosens technology• Product Configurator on the product page: www.endress.com/cus51d
Technical Information TI00461C
Turbimax CUS52D• Hygienic Memosens sensor for turbidity measurement in drinking water, process water and in
utilities• With Memosens technology• Product Configurator on the product page: www.endress.com/cus52d
Technical Information TI01136C
SAC and nitrate sensors
Viomax CAS51D• SAC and nitrate measurement in drinking water and wastewater• With Memosens technology• Product Configurator on the product page: www.endress.com/cas51d
Technical Information TI00459C
Interface measurement
Turbimax CUS71D• Immersion sensor for interface measurement• Ultrasonic interface sensor• Product Configurator on the product page: www.endress.com/cus71d
Technical Information TI00490C
Cable junction with Velcro strip• 4 pieces, for sensor cable• Order No. 71092051
Communication-specificaccessories

Endress+Hauser

Additional functionality‣ Always quote the serial number of your device when ordering activation codes.
Order code

Communication; software

51516983

Commubox FXA291 (hardware)

71127100

SD card with Liquiline Firmware, 1 GB, Industrial Flash Drive

XPC0018

Activation code for EtherNet/IP + web server

XPC0020

Activation code for Modbus TCP + web server

XPC0021

Activation code for web server for BASE2

31

Liquiline System CA80COD

Order code

Communication; software

XPC0022

Activation code for PROFINET + web server for BASE2

XPC0024

Activation code for Profibus DP for module 485

XPC0025

Activation code for Modbus RS485 for module 485

71249548

Kit CA80: activation code for 1st digital sensor input

71249555

Kit CA80: activation code for 2nd digital sensor input

Retrofit kits
71136999

Kit CSF48/CA80: retrofit service interface (CDI flange connector, counter nut)

71111053

Kit module AOR: 2 x relay, 2 x analog output 0/4 to 20 mA

71125375

Kit module 2R: 2 x relay

71125376

Kit module 4R: 4 x relay

71135632

Kit module 2AO: 2 x analog output 0/4 to 20 mA

71135633

Kit module 4AO: 4 x analog output 0/4 to 20 mA

71135631

Kit module 2DS: 2 x digital sensor, Memosens

71135634

Kit module 485: PROFIBUS DP or Modbus RS485. This requires an additional activation code
which can be ordered separately.

71135638

Kit module DIO: 2 x digital input; 2 x digital output; auxiliary power supply for digital output

71135639

Kit module 2AI: 2 x analog input 0/4 to 20 mA

71140888

Upgrade kit module 485 + Profibus DP

71140889

Upgrade kit module 485 + Modbus RS485

71141366

Kit, extension backplane module

Software
Memobase Plus CYZ71D• PC software to support laboratory calibration• Visualization and documentation of sensor management• Sensor calibrations stored in database• Product Configurator on the product page: www.endress.com/cyz71d
Technical Information TI00502C
Field Data Manager Software MS20/21• PC software for central data management• Visualization of series of measurements and logbook events• SQL database for secure data storage
System components

Measuring cables
Memosens data cable CYK10• For digital sensors with Memosens technology• Product Configurator on the product page: www.endress.com/cyk10
Technical Information TI00118C
Memosens data cable CYK11• Extension cable for digital sensors with Memosens protocol• Product Configurator on the product page: www.endress.com/cyk11
Technical Information TI00118C
SD card• Industrial Flash Drive, 1 GB
• Order number: 71110815

32

Endress+Hauser

*71658302*
71658302

www.addresses.endress.com