Endress+Hauser CM448R Specifications

TI01112C/07/EN/09.19 71478328 2019-11-30

Products Solutions Services

Technical Information

Liquiline CM442R/CM444R/ CM448R

Cabinet controller with a maximum of eight measuring channels based on digital Memosens technology

For monitoring and controlling processes in industry and the environmental sector

Application

• Food and beverages

• Life science

• Water and wastewater

• Chemical industry

Your benefits

• Highly flexible:

• Able to connect up to 8 Memosens sensors

• Mathematics functions calculate new measured values

• Digital fieldbuses (HART, PROFIBUS, Modbus, Ethernet/IP, PROFINET) and integrated web server

• Choice of cleaning function, controller and alarm relay

• Optional digital or analog inputs/outputs

• Maximum process safety thanks to standardized operating concept across all devices in the Liquiline, sampler and analyzer platform

• Fast commissioning thanks to:

• Memosens: lab-calibrated sensors & hot plug-and-play

• Preconfigured Liquiline transmitters

• Easy extension and adaptation

• Minimum inventory:

• Cross-platform, modular concept (e.g. identical modules

irrespective of parameters)

• Integration into FieldCare and W@M facilitates effective

asset management

Liquiline CM442R/CM444R/CM448R

Function and system design ................... 4

Measuring system ............................. 4

Application example ........................... 5

Device architecture .......................... 6

Slot and port assignment ........................ 6

Order of the modules ........................... 6

Basic rule for hardware upgrades ................... 6

Determining the hardware delivery status ............. 7

Terminal diagram ............................. 7

Device configuration using the example of a CM442R-

**M1A1F0* ................................ 8

Function diagram CM442R ....................... 9

Device configuration using the example of a CM444R-

**M42A1FA* .............................. 10

Function diagram CM444R ...................... 11

Device configuration using the example of a CM448R-

**26A1* .................................. 12

Function diagram CM448R ...................... 13

Communication and data processing ........... 14

Dependability ............................. 14

Reliability ................................. 14

Maintainability .............................. 16

Safety .................................... 19

Input .................................... 20

Measured variables ........................... 20

Measuring ranges ............................ 20

Types of input ............................... 20

Input signal ................................ 20

Cable specification ............................ 20

Digital inputs, passive ....................... 20

Electrical specification ......................... 20

Span ..................................... 20

Nominal input current ......................... 20

PFM function ............................... 20

Test voltage ................................ 20

Cable specification ............................ 20

Current input, passive ....................... 20

Span ..................................... 20

Signal characteristic ........................... 20

Internal resistance ............................ 20

Test voltage ................................ 20

Output .................................. 21

Output signal ............................... 21

Signal on alarm .............................. 22

Load ..................................... 22

Linearization/transmission behavior ................ 22

Digital outputs, passive ..................... 22

Electrical specification ......................... 22

External power supply ......................... 22

PFM function ............................... 22

Auxiliary voltage ............................. 22

Test voltage ................................ 22

Cable specification ............................ 22

Current outputs, active ...................... 22

Span ..................................... 22

Signal characteristic ........................... 22

Electrical specification ......................... 23

Cable specification ............................ 23

Relay outputs ............................. 24

Electrical specification ......................... 24

Cable specification ............................ 24

Protocol-specific data ....................... 24

HART .................................... 24

PROFIBUS DP ............................... 25

Modbus RS485 .............................. 25

Modbus TCP ................................ 25

Ethernet/IP ................................ 25

PROFINET ................................. 26

Web server ................................. 27

Power supply ............................. 27

Supply voltage .............................. 27

Power consumption ........................... 28

Fuse ..................................... 28

Overvoltage protection ......................... 28

Cable specification for optional display cable .......... 28

Electrical connection .......................... 29

Connecting optional modules ..................... 31

Protective ground connection .................... 33

Sensor connection ............................ 33

Performance characteristics .................. 35

Response time .............................. 35

Reference temperature ......................... 35

Measured error for sensor inputs .................. 35

Measured error for current inputs and outputs ......... 35

Frequency tolerance of digital inputs and outputs ....... 35

Resolution of current inputs and outputs ............. 35

Repeatability ............................... 35

Installation ............................... 35

Mounting on DIN rail as per IEC 60715 .............. 35

Wall mounting .............................. 36

Mounting the external display .................... 37

Environment .............................. 37

Ambient temperature range ..................... 37

Storage temperature .......................... 38

Humidity .................................. 38

Degree of protection .......................... 38

Climate class ............................... 38

Vibration resistance ........................... 38

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Liquiline CM442R/CM444R/CM448R

Electromagnetic compatibility .................... 38

Electrical safety .............................. 39

Degree of contamination ....................... 39

Mechanical construction .................... 39

Dimensions ................................ 39

Weight ................................... 42

Materials .................................. 42

Operability ............................... 43

External display ............................. 43

Operating concept ............................ 43

Local operation via external, optional display .......... 43

Remote operation ............................ 44

Language packages ........................... 45

Certificates and approvals ................... 46

 mark ................................... 46

EAC ..................................... 46

cCSAus ................................... 46

Marine approvals ............................ 46

Ordering information ....................... 46

Product page ............................... 46

Product Configurator .......................... 46

Scope of delivery ............................. 47

Accessories ............................... 47

Measuring cable ............................. 47

Sensors ................................... 47

Additional functionality ........................ 51

Software .................................. 53

Other accessories ............................. 53

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Function and system design

5 4 3

Liquiline CM442R/CM444R/CM448R

Measuring system

The overview shows examples of measuring systems. Other sensors and assemblies can be ordered for conditions specific to your application (www.endress.com/products).

Measuring point pH value or ORP

A complete measuring system comprises:

• TransmitterLiquiline

• Optional display

• Sensors with Memosens technology

• Assemblies to suit the sensors used

 1 Cabinet installation (without sensor and signal

cables)

1 Optional display (back) 2 Liquiline 3 External power unit (CM444R and CM448R only) 4 Power cable (to be provided by the customer) 5 Display cable

pH measurement in drinking water (→ Fig.)

• Retractable assembly Cleanfit CPA871

• Sensor Orbisint CPS11D

• Measuring cable CYK10

ORP in drinking water

• Dipfit CYA112 immersion assembly

• Sensor Orbisint CPS12D

• Measuring cable CYK10

Conductivity

Inductive conductivity measurement in wastewater treatment

• Sensor Indumax CLS50D

• Sensor fixed cable

Conductive conductivity measurement in power plant cooling water

• Sensor Condumax CLS15D

• Measuring cable CYK10

Oxygen

Oxygen in aeration basins

A0042875

• Dipfit CYA112 immersion assembly

• Holder CYH112

• Sensor

• COS61D (optical) with fixed

cable (→ Fig.)

• COS51D (amperometric),

cable CYK10

Nitrate and SAC Turbidity and interface

Nitrate in wastewater

• Sensor CAS51D-**A2 with fixed cable

• Dipfit CYA112 immersion assembly

• Holder CYH112

SAC in the wastewater treatment outlet

• Sensor CAS51D-**2C2 with fixed cable

• Dipfit CYA112 immersion assembly

• Holder CYH112

Disinfection Ion-selective electrodes

Free available chlorine (and pH) in drinking water

• Sensor CCS142D

• Sensor CPS11D

• Measuring cable CYK10

• Flow assembly CCA250

Turbidity in industrial water

• Sensor Turbimax CUS51D with fixed cable (→ Fig.)

• Assembly Flowfit CUA250

• Spray head CUR3 (optional)

Interface in the primary clarifier

• Sensor Turbimax CUS71D

• Assembly CYA112

• Holder CYH112

Ammonium and nitrate measurement in the aeration basin

• Sensor CAS40D with fixed cable

• Holder CYH112

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Liquiline CM442R/CM444R/CM448R

Outlet 1

CH 1:1 pH

CH 1:1 Temperature

CH 1:2 Cond I

CH 2:1 Cond I

CH 2:2 Chlorine

CH 3:1 Current Input [Flow]

6.99 pH

25.1 °C

9.02 mS/cm

13.41 mS/cm

9.03 mg/l

15.1 nA

11:12:13 29.06.2013

10.00

mS/cm

8.00

mS/cm

29.05.2013 10:02:20

29.06.2013 11:09:15

6.00 pH

29.05.2013 10:02:20

29.06.2013 11:09:15

12.00 pH

Field Data Manager

Application example

• Transmitter CM444R-AAM44A0FM6 with: 4 x Memosens, Modbus TCP, 2 digital inputs and 2 digital outputs, 2 x relays for cleaning/limit value, 2 x analog current input

• pH and temperature with CPS11D, item 1 (www.endress.com/cps11d)

• Chlorine with CCS142D, item 4 (www.endress.com/ccs142d)

• 2 x conductivity, inductive measurement with CLS50D, item 2 and 3 (www.endress.com/cls50d)

• 1 x measuring range switching for conductivity via Modbus module

• Flow assembly CCA250 with optional proximity switch INS (www.endress.com/cca250)

• Chlorine regulation with dosing interrupted if no flow: proximity switch via digital input of DIO module, flow feedforward control (via digital or analog input), PFM-controlled dosing pump via digital output of DIO module

 2 Measuring point in the CIP process

Data retention

• Storage of all measured values, incl. values of external sources, in the non-volatile memory (data logbook)

• Data called up on site via user-defined measuring menu and load curve display of the data logbook

• Transmission of data by ethernet, CDI interface or SD card and storage in a tamper-proof database (Field Data Manager)

• Data export to csv file (for Microsoft Excel)

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A0025347

Slot and port assignment

BASE2-E

Slots

Ports

2DS 2DS 2DS 2AI 2AO 4R

Sensor 1

Sensor 2

Liquiline CM442R/CM444R/CM448R

Device architecture

Order of the modules

Basic rule for hardware upgrades

 3 Slot and port assignment of the hardware modules

• Inputs are assigned to measuring channels in the ascending order of the slots and ports. Adjacent example: "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 displayed in ascending order with the slot and port numbers

 4 Slot and port assignment on the

display

Depending on the version ordered, the device is supplied with a number of electronic modules, which are assigned in a specific sequence in ascending order to slots 0 to 7. If you do not have a particular module, the next moves up automatically:

• The basic module (which is always present) always occupies slots 0 and 1

• Fieldbus module 485

• Memosens input module 2DS (DS = digital sensor)

• Extension module for digital inputs and outputs DIO (DIO = digital input and output)

• Current input module 2AI (AI = analog input)

• Current output module 4AO or 2AO (AO = analog output)

• Relay modules AOR, 4R or 2R (AOR = analog output + relay, R = relay) Modules with 4 ports are connected before modules of the same type with 2 ports.

Please note the following if upgrading the device:

• The sum of all current inputs and outputs may not exceed 8!

• A maximum of two "DIO" modules may be used.

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Liquiline CM442R/CM444R/CM448R

1 2

42 41

Relay 1

Relay 2

Relay 3

Relay 4

Slot

Slot 4

Port 1

Pin 41

BASE2-E 2DS

2AO

42 414342 41

42 41

Determining the hardware delivery status

You must be aware of the type of modules and the number of them supplied with the device you have ordered to determine the delivery status of your Liquiline.

• Basic module One basic module in all versions. Always occupies slots 0 and 1.

• Fieldbus module Optional, and only one fieldbus module is possible.

• Input modules

• Must be clearly assigned to the number of optional inputs ordered.

• Examples:

2 current inputs = module 2AI 4 Memosens inputs = 2 inputs with basic module + module 2DS with 2 further inputs

• Current outputs and relays Various module combinations can exist. The following table will help you determine which modules your device has, depending on the type and number of outputs.

Relays

Current outputs

2 - 1 x 2R 1 x 4R

4 1 x 2AO 1 x AOR 1 x 2AO + 1 x 4R

6 1 x 4AO 1 x 4AO + 1 x 2R 1 x 4AO + 1 x 4R

8 1 x 4AO + 1 x 2AO 1 x 4AO + 1 x 2AO + 1 x 2R 1 x 4AO + 1x 2AO + 1 x 4R

Sum up the number of modules and sort them according to the specified sequence →  6.

‣

0 2 4

 This will give you the slot assignment for your device.

Terminal diagram

The unique terminal name is derived from:

Slot no. : Port no. : Terminal

Example, NO contact of a relay

Device with 4 inputs for digital sensors, 4 current outputs and 4 relays

• Base module BASE2-E (contains 2 sensor inputs, 2 current outputs)

• 2DS module (2 sensor inputs)

• 2AO module (2 current outputs)

• 4R module (4 relays)

 5 Creating a terminal diagram using the example of the NO contact (terminal 41) of a relay

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A0039621

Device configuration using the example of a CM442R**M1A1F0*

Liquiline CM442R/CM444R/CM448R

Ordered basic device (example) • Order code CM442R-**M1A1F0*

• Functionality: 1 x Memosens, 2 current outputs without HART

Extension options without additional modules

Extension options by using an extension module in free slot 2

Basic rule for extensions The sum of all current inputs and outputs may not exceed 8.

Restrictions if using CUS71D sensors for interface measurement

Product Configurator www.endress.com/cm442r

Activation with activation code:

• Second Memosens input (71114663)

• HART (71128428)

• EtherNet/IP + web server (71449914)

• Modbus TCP + web server (71449915)

• PROFINET + web server (71449901)

• Web server (71449918)

PROFIBUS DP or Modbus RS485 with module 485 incl. activation code:

• PROFIBUS DP (71140888)

• Modbus RS485 (71140889)

If module 485 is retrofitted, any existing current outputs are



disabled!

Additional inputs or outputs, relays:

• Module 2AI (71135639): 2 current inputs

• Module 2AO (71135632): 2 current outputs

• Module AOR (71111053): 2 current outputs, 2 relays

• Module 2R (71125375) or 4R (71125376): 2 or 4 relays

• Module DIO (71135638): 2 digital inputs and 2 digital outputs

Only one CUS71D can be connected. The second Memosens input may not be used.

A0041706

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Liquiline CM442R/CM444R/CM448R

optional

L+L-L

~ =

HART

optional

–

Function diagram CM442R

 6 Function diagram CM442R 1 Current output 1:1, + HART (optional) 6 Power supply

Endress+Hauser 9

2 Current outputs (2 x optional) 7 Service interface 3 2 x Memosens input (1 x optional) 8 Power supply, fixed cable sensors 4 PROFIBUS DP/Modbus/Ethernet (optional) 9 Alarm relay 5 2 x current input (optional) 10 2 or 4 x relays (optional)

A0039427

11 2 digital inputs and outputs (optional)

Device configuration using the example of a CM444R**M42A1FA*

Liquiline CM442R/CM444R/CM448R

Ordered basic device (example) • Order code CM444R-**M42A1FA*

• Functionality:

• 4 x Memosens (2 on BASE2-E module + 2 on an extension module 2DS)

• PROFIBUS communication (module 485)

• Web server (BASE2-E module)

• 2 current outputs without HART (on BASE2-E module)

• 2 current inputs (module 2AI)

3 slots are still free in this example. More or fewer slots can be free in other versions.

Extension options without additional modules

Modification options without additional modules

Extension options by using extension modules in free slots 5-7

Basic rule for extensions The sum of all current inputs and outputs may not exceed 8.

Restrictions if using CUS71D sensors for interface measurement

Product Configurator www.endress.com/cm444r

None

Communication type changed by entering activation code. This disables the communication type used previously! Modbus RS485 + web server (71135636)

Retrofit by removing module 485 and entering the activation code for:

• Modbus TCP + web server (71449915)

• EtherNet/IP + web server (71449914)

• PROFINET + web server (71449901)

• HART (71128428)

• Web server (71449918)

Only the following is possible for the example above:

• Module 2R (71125375) or 4R (71125376): 2 or 4 relays

• Module DIO (71135638): 2 digital inputs and 2 digital outputs

If extending to 8 measuring channels: Module 2DS (71135631): 2 Memosens inputs

Additional inputs or outputs and relays if fieldbus module 485 is removed:

• Module 2AO (71135632): 2 current outputs

• Module AOR (71111053): 2 current outputs, 2 relays

• Module 2R (71125375) or 4R (71125376): 2 or 4 relays

• Module DIO (71135638): 2 digital inputs and 2 digital outputs

If module 485 is removed and an Ethernet-based fieldbus is



used via BASE2-E module, a maximum of up to 6 current outputs can be operated in addition. Only two current outputs are possible with module 485.

• In the case of CM444R, every combination of Memosens sensors (max. 4) is possible.

• An extension to CM448R is not advisable as the maximum number of Memosens inputs when using CUS71D remains limited to 4.

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Liquiline CM442R/CM444R/CM448R

87 88 97 98

optional

87 88 97 98

3 8

87 88 97 98

3 8

optional

HART

optional

+ –

–

+ –

optional

L+L-L

~ =

Function diagram CM444R

Endress+Hauser 11

 7 Function diagram CM444R 1 Current output 1:1, + HART (both optional) 6 Power supply 2 Max. 7 x current output (optional) 7 Service interface 3 Memosens input (2 x standard + 2 x optional) 8 Power supply, fixed cable sensors 4 PROFIBUS DP/Modbus/Ethernet (optional) 9 Alarm relay 5 2 x current input (optional) 10 2 or 4 x relays (optional)

A0039431

11 2 digital inputs and outputs (optional)

Device configuration using the example of a CM448R**26A1*

Liquiline CM442R/CM444R/CM448R

Ordered basic device (example) • Order code CM448R-**26A1*

• Functionality:

• 6 x Memosens (2 on BASE2-E module + 2 on two 2DS extension

modules)

• PROFIBUS communication (module 485)

• Web server (BASE2-E module)

3 slots are still free in this example. More or fewer slots can be free in other versions.

Extension options without additional modules

Modification options without additional modules

Extension options by using extension modules in free slots 5-7

Basic rule for extensions The sum of all current inputs and outputs may not exceed 8.

Restrictions if using CUS71D sensors for interface measurement

Product Configurator www.endress.com/cm448r

Activation code for the use of current outputs of the basic module: 2 current outputs (71140891)

Communication type changed by entering activation code. This disables the communication type used previously! Modbus RS485 + web server (71135636)

Retrofit by removing module 485 and entering the activation code for communication via the BASE2 module:

• Modbus TCP + web server (71449915)

• EtherNet/IP + web server (71449914)

• PROFINET + web server (71449901)

• HART (71128428)

• Web server (71449918)

If extending to 8 measuring channels: Module 2DS (71135631): 2 Memosens inputs

Additional inputs or outputs, relays:

• Module 2AO (71135632): 2 current outputs

• Module 2AI (71135639): 2 current inputs

• Module AOR (71111053): 2 current outputs, 2 relays

• Module 2R (71125375) or 4R (71125376): 2 or 4 relays

• Module DIO (71135638): 2 digital inputs and 2 digital outputs

If module 485 is removed and an Ethernet-based fieldbus is



used, a maximum of up to 6 current outputs can be operated in addition. Only two current outputs are possible with module

485.

The maximum number of Memosens inputs that can be used is limited to 4! Here, every combination of CUS71D and other Memosens sensors is then possible.

12 Endress+Hauser

Liquiline CM442R/CM444R/CM448R

87 88 97 98

optional

87 88 97 98

3 8

optional

87 88 97 98

optional

HART

optional

–

optional

L+L-L

~ =

+ –

optional

Function diagram CM448R

Endress+Hauser 13

 8 Function diagram CM448R 1 Current output 1:1, + HART (both optional) 7 Service interface 2 Max. 7 x current output (optional) 8 Power supply, fixed cable sensors 3 Max 8 x Memosens input (2 x of which are

4 PROFIBUS DP/Modbus/Ethernet (optional) 10 2 or 4 x relays (optional) 5 2 x current input (optional) 11 2 digital inputs and outputs (optional) 6 Power supply

optional)

A0039429

9 Alarm relay

Liquiline CM442R/CM444R/CM448R

MEMO SENS

Communication and data processing

Communication protocols:

Fieldbus systems

• HART

• PROFIBUS DP (Profile 3.02)

• Modbus TCP or RS485

• PROFINET

• Ethernet/IP Only one type of Fieldbus communication can ever be active. The last activation code entered

decides which bus is used.

The device drivers available make it possible to perform a basic setup and display measured values and diagnostics information via the fieldbus. A full device configuration via the fieldbus is not possible.

Extension module 485 and current outputs

For PROFIBUS DP, and Modbus RS485 communication protocols:

• CM442R

Current outputs cannot be used in parallel. Any existing current outputs are deactivated with the installation of 485.

• CM444R/CM448R

A maximum of 2 current outputs can be used in parallel.

Ethernet functionality via Base2 module and current outputs

• CM442R

A maximum of 2 current outputs can be used in parallel.

• CM444R and CM448R

A maximum of 6 current outputs can be used in parallel.

Bus termination on the device

• Via slide switch at bus module 485

• Displayed via LED "T" on bus module 485

Reliability

Dependability

Memosens

Memosens makes your measuring point safer and more reliable:

• Non-contact, digital signal transmission enables optimum galvanic isolation

• No contact corrosion

• Completely watertight

• Sensor can be calibrated in a lab, thus increasing the availability of the measuring point in the

process

• 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

Heartbeat diagnostics

• Heartbeat diagnostics screen with graphic indicators for the health of the device and sensor and

with a maintenance or (sensor-dependent) calibration timer

• Heartbeat status information on the health of the device and the condition of the sensor

: Sensor/device condition or maintenance timer > 20 %; no action is required

•

• : Sensor/device condition or maintenance timer > 5 ≤ 20 %, maintenance not yet urgent but should be scheduled

• : Sensor/device condition or maintenance timer < 5 %, maintenance is recommended

• The Heartbeat sensor condition is the assessment of the calibration results and the sensor diagnostic functions.

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Liquiline CM442R/CM444R/CM448R

An unhappy smiley can be due to the calibration result, the measured value status or to the operating hours limit having been exceeded. These limits can be configured in the sensor setup in a way that adapts the Heartbeat diagnostics to the application.

Heartbeat and NAMUR category

The Heartbeat status indicates the sensor or device condition while the NAMUR categories (F, C, M, S) assess the reliability of the measured value. The two conditions can correlate but do not have to.

• Example 1

• The number of remaining cleaning cycles for the sensor reaches 20% of the defined maximum number. The Heartbeat symbol changes from NAMUR status signal does not change.

• If the maximum number of cleaning cycles is exceeded, the Heartbeat symbol changes from to . While the measured value can still be reliable, the NAMUR status signal changes to M (maintenance required).

• Example 2 The sensor breaks. The Heartbeat status changes immediately from status signal also changes immediately to F (failure).

Heartbeat Monitoring

Sensor data from Memosens sensors are transmitted via the EtherNet/IP, PROFINET, PROFIBUS DP, HART, Modbus RTU and Modbus TCP fieldbus protocols. These data can be used for predictive maintenance, for instance.

Examples include:

• 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 identification

• Calibration information

For detailed information on "Ethernet/IP communication", see the product pages on the Internet (→ SD01293C).

For detailed information on "Modbus communication", see the product pages on the Internet (→ SD01189C).

For detailed information on "PROFINET communication", see the product pages on the internet (→ SD02490C).

For detailed information on "PROFIBUS communication", see the product pages on the Internet (→ SD01188C).

More detailed information on HART communication is provided on the product pages on the Internet (→ SD01187C).

to . The measured value is still reliable so the

to and the NAMUR

Heartbeat Verification

Heartbeat Verification makes it possible to verify the correct operation of the measuring device without interrupting the process. This verification can be documented anytime.

Sensor Check System (SCS)

The Sensor Check System (SCS) monitors the high impedance of the pH glass. An alarm is issued if a minimum impedance value is undershot or a maximum impedance is exceeded.

• Glass breakage is the main reason for a drop in high impedance values

• The reasons for increasing impedance values include:

• Dry sensor

• Worn pH glass membrane

For the SCS, upper and lower limit values can be enabled or disabled independently of one another.

Process Check System (PCS)

The process check system (PCS) checks the measuring signal for stagnation. An alarm is triggered if the measuring signal does not change over a specific period (several measured values).

The main causes of stagnating measured values are:

• Contaminated sensor, or sensor outside of medium

• Sensor defective

• Process error (e.g. through control system)

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Liquiline CM442R/CM444R/CM448R

Self-monitoring functions

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.

USP and EP

The limit functions for pharmaceutical water in accordance with USP and EP specifications are implemented in the software for conductivity measurements:

• "Water for Injection" (WFI) as per USP <645> and EP

• "Highly Purified Water" (HPW) as per EP

• "Purified Water" (PW) as per EP The uncompensated conductivity value and the temperature are measured for the USP/EP limit

functions. The measured values are compared against the tables defined in the standards. An alarm is triggered if the limit value is exceeded. Furthermore, it is also possible to configure an early warning alarm that signals undesired operating states before they occur.

ChemocleanPlus

Freely programmable sequence control

• e.g. for automatic sensor cleaning in retractable assemblies for reliable measurement results in processes with a high risk of contamination

• Individual, time-based activation of 4 outputs e.g. relays

• Starting, stopping or pausing of activities via digital input or fieldbus signals e.g. from limit position switches

Maintainability Modular design

The modular transmitter design means it can be easily adapted to suit your needs:

• Retrofit extension modules for new or extended range of functions, e.g. current outputs, relays and digital communication

• Upgrade to maximum eight-channel measurement

• Optional: M12 sensor connector for connecting any kind of Memosens sensor

• Optional: CDI connector for external access to the service interface (avoids having to unscrew the housing cover)

 9 CM444R: example

A0042325

A0042346

 10 Extension module

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Liquiline CM442R/CM444R/CM448R

Data logger function

• Adjustable scan time: 1 to 3600 s (1 h)

• Data logbooks:

• Max. 8 data logbooks

• 150,000 entries per logbook

• Graphic display (load curves) or numerical list

• Calibration logbook: max. 75 entries

• Hardware version logbook:

• Hardware configuration and modifications

• Max. 125 entries

• Version logbook:

• E.g. software updates

• Max. 50 entries

• Operation logbook: max. 250 entries

• Diagnostics logbook: max. 250 entries

A0015032

 11 Data logbook: Graphic display

Logbooks remain unchanged even after a software update.

SD card

The exchangeable storage medium enables:

• Quick and easy software updates and upgrades

• 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)

• Saving of screenshots for documentation purposes

Endress+Hauser offers industry-approved SD cards as accessories. These memory cards provide maximum data security and integrity.

Other SD cards up to a maximum weight of 5 g can also be used. However, Endress+Hauser does not accept any responsibility for the data security of such cards.

External signals for device control and for activating external devices

Hardware options, e.g. module "DIO" with 2 digital inputs and 2 digital outputs or fieldbus module "485" enable the following:

• via a digital input signal

• measuring range switching for conductivity (upgrade code required, see accessories)

• switching between different calibration datasets in the case of optical sensors

• an external hold

• a cleaning interval to be triggered

• switching on and off a PID controller, e.g. via the proximity switch of the CCA250

• the use of the input as an "analog input" for pulse-frequency modulation (PFM)

• via a digital output signal

• the static transmission (similar to a relay) of diagnostic states, point level switch states etc.

• the dynamic transmission (comparable to a non-wearing "analog output") of PFM signals, e.g. to

control dosing pumps.

Endress+Hauser 17

+ 39 hidden pages

Endress+Hauser CM448R Specifications

Table of contents

Function and system design

Measuring system

Application example

Slot and port assignment

Device architecture

Order of the modules

Basic rule for hardware upgrades

Determining the hardware delivery status

Terminal diagram

Function diagram CM442R

Function diagram CM444R

Function diagram CM448R

Communication and data processing

Reliability

Dependability

Maintainability Modular design