Endress+Hauser Liquiline CM442 Manuale utente

BA445C/07/EN/13.10

71124073

Valid as of:

Software version 01.02.00

Operating Instructions

Liquiline CM442

Universal four-wire multichannel controller

Maintenance & diagnostics

About this manual

This manual describes all the tasks you must perform for maintenance, diagnostics and troubleshooting.

A description of the following is provided here:

• Maintenance

• "Diagnostics" menu

– Diagnostics list

– Logbooks

– System information

– Sensor information

– Simulation

– Systemtest/Reset

• Troubleshooting

• Accessories and spare parts

This manual does not include the following:

• Display/Operation

--> Operating Instructions BA444C "Commissioning"

• Basic setup

--> Operating Instructions BA444C "Commissioning"

• Setup/General settings

--> Operating Instructions BA450C "Operation&settings"

• Inputs

--> Operating Instructions BA450C "Operation&settings"

•Outputs

--> Operating Instructions BA450C "Operation&settings"

• Additional functions

--> Operating Instructions BA450C "Operation&settings"

• Calibration

--> Operating Instructions BA451C "Calibration"

• Expert

--> Internal Service Manual

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Table of contents

1 Maintenance. . . . . . . . . . . . . . . 4

1.1 Calibration . . . . . . . . . . . . . . . . . . . . . . . . . 4

1.2 Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . 5

2 Diagnostics menu . . . . . . . . . . . 6

2.1 Diagnostics list . . . . . . . . . . . . . . . . . . . . . . 6

2.2 Logbooks . . . . . . . . . . . . . . . . . . . . . . . . . . 6

2.3 System information . . . . . . . . . . . . . . . . . . 8

2.4 Sensor information . . . . . . . . . . . . . . . . . . . 9

2.5 Simulation . . . . . . . . . . . . . . . . . . . . . . . . 10

2.6 Systemtest/Reset . . . . . . . . . . . . . . . . . . . 11

3 Troubleshooting . . . . . . . . . . . 12

3.1 Troubleshooting . . . . . . . . . . . . . . . . . . . . 12

3.2 System error messages . . . . . . . . . . . . . . . 12

3.3 Process errors without messages . . . . . . . . 29

3.4 Device-specific errors . . . . . . . . . . . . . . . . 36

3.5 Return . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

3.6 Disposal . . . . . . . . . . . . . . . . . . . . . . . . . . 36

3.7 Software history . . . . . . . . . . . . . . . . . . . . 37

4 Accessories. . . . . . . . . . . . . . . 38

4.1 Weather protection cover . . . . . . . . . . . . . 38

4.2 Post mounting kit . . . . . . . . . . . . . . . . . . . 38

4.3 Measuring cable . . . . . . . . . . . . . . . . . . . . 38

4.4 Sensors . . . . . . . . . . . . . . . . . . . . . . . . . . 38

4.5 Additional functionality . . . . . . . . . . . . . . 41

4.6 Other accessories . . . . . . . . . . . . . . . . . . . 42

5 Spare parts . . . . . . . . . . . . . . . 43

Index . . . . . . . . . . . . . . . . . . . 46

Maintenance

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1 Maintenance

WARNING

Process pressure and temperature, contamination, electrical voltage

Risk of serious or fatal injury

►If the sensor has to be removed during maintenance work, avoid hazards posed by pressure, tem-

perature and contamination.

►De-energize the device before opening it.

►Power can be supplied to switching contacts from separate circuits. De-energize these circuits

before working on the terminals.

Take all the necessary precautions in time to ensure the operational safety and reliability of the entire

measuring point.

Maintenance of the measuring point comprises:

• Calibration

• Cleaning the controller, assembly and sensor

• Checking cables and connections

When performing any work on the device, bear in mind any potential impact this may have on the

process control system or on the process itself.

NOTICE

Electrostatic discharge (ESD)

Risk of damaging the electronic components

►Take personal protective measures to avoid ESD, such as discharging beforehand at PE or perma-

nent grounding with a wrist strap.

►For your own safety, only use genuine spare parts. With genuine parts, the function, accuracy and

reliability are also ensured after maintenance work.

1.1 Calibration

Sensors with Memosens protocol are calibrated at the factory.

Users must decide whether the process conditions present require calibration during initial

commissioning.

Additional calibration is not required in many standard applications.

Calibrate the sensors at sensible intervals depending on the process.

All information on calibration is provided in BA451C "Calibration".

Maintenance

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1.2 Cleaning

1.2.1 Controller

Only clean the front of the housing with commercially available cleaning agents.

The front is resistant to the following as per DIN 42 115:

• Ethanol (short periods)

• Diluted acids (max. 2% HCl)

• Diluted bases (max. 3% NaOH)

• Soap-based household cleaners

NOTICE

Prohibited cleaning agents

Damage to the housing surface or housing seal

►For cleaning purposes, never use concentrated mineral acids or bases.

►Never use organic cleaners such as benzyl alcohol, methanol, methylene chloride, xylene or

concentrated glycerol cleaner.

►Never use high-pressure steam for cleaning purposes.

1.2.2 Digital sensors

1. If an error occurs or the maintenance schedule stipulates that the sensor has to be replaced, use a

new sensor, or a sensor that has been precalibrated in the laboratory.

A sensor is calibrated in the laboratory under optimum external conditions, thereby ensuring

better quality of measurement.

2. Remove the sensor to be serviced and install the new sensor.

3. You must perform calibration if you use a sensor that is not precalibrated.

4. The sensor data are automatically accepted by the transmitter. A release code is not required.

5. Measurement is resumed.

6. Take the used sensor back to the laboratory. In the laboratory you can get the sensor ready for

reuse while ensuring the availability of the measuring point.

– Clean the sensor. For this purpose, use the cleaning agent specified in the sensor manual.

– Inspect the sensor for cracks or other damage.

– If no damage is found, regenerate the sensor. Where necessary, store the sensor in a

regeneration solution (--> sensor manual).

– Recalibrate the sensor for reuse.

1.2.3 Assemblies

Refer to the assembly operating manual for information on servicing and troubleshooting the assembly.

The assembly operating manual describes the procedure for mounting and disassembling the assembly,

replacing the sensors and seals, and contains information on the material resistance properties, as well

as spare parts and accessories.

Diagnostics menu

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2 Diagnostics menu

The Diagnostics menu contains all the information on the device status.

Furthermore, various service functions are available.

The following messages are directly displayed every time you enter the menu:

• "Most important message"

Diagnostics message recorded with the highest criticality level

• "Past message"

Last diagnostics message recorded

All the other functions in the Diagnostics menu are described in the following chapters.

2.1 Diagnostics list

All the current diagnostics messages are listed here.

A time stamp is available for each message. Furthermore, the system also displays the configuration and

description of the message as saved in "Menu/Setup/General settings/Diagnostics/Device behavior".

2.2 Logbooks

Types of logbooks

• Logbooks physically available (all apart from the overall logbook)

• Database view of all logbooks (=overall logbook)

Logbook Visible in Max.

entries

Can be

disabled1)

1) Data in brackets means this depends on the overall logbook

Logbook

can be

deleted

Entries

can be

deleted

Can be

exported

Overall logbook All events 1000 Yes No Yes No

Diagnostics logbook Diagnostic events 250 (Yes) No Yes Yes

Calibration logbook Calibration events 75 (Yes) No Yes Yes

Operation logbook Configuration events 250 (Yes) No Yes Yes

Version logbook All events 50 No No No Yes

Hardware version logbook All events 125 No No No Yes

Data logbook Data logbooks 150,000 Yes Yes Yes Yes

Debugging logbook Only accessible with the special

activation code (Service)

1000 Yes No Yes Yes

Diagnostics menu

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You can view your data logbook entries graphically on the display ("Show plot").

You can also adapt the display to suit your individual requirements:

• If you press the navigator button in the graphic display, you are given additional options such as the

zoom function and x/y movement of the graph.

• Furthermore, you can also define a cursor. If you select this option, you can move along the graph

with the navigator and view the logbook entry (data stamp/measured value) in text form for every

point in the graph.

Diagnostics/Logbooks

Function Options Info

All events Chronological list of all the logbook entries, with information

on the type of event.

Show Events are displayed Select a particular event to display more detailed

information.

Go to date User input

•Gotodate

•Time

Use this function to go directly to a specific time in the list. In

this way, you avoid having to scroll through all the

information. The complete list is always visible, however.

Calibration events Chronological list of the calibration events.

Show Events are displayed Select a particular event to display more detailed

information.

Go to date User input

•Gotodate

•Time

Use this function to go directly to a specific time in the list. In

this way, you avoid having to scroll through all the

information. The complete list is always visible, however.

Delete all entries Action You can delete all the calibration logbook entries here.

Configuration events Chronological list of the configuration events.

Show Events are displayed Select a particular event to display more detailed

information.

Go to date User input

•Gotodate

•Time

Use this function to go directly to a specific time in the list. In

this way, you avoid having to scroll through all the

information. The complete list is always visible, however.

Delete all entries Action You can delete all the calibration logbook entries here.

Diagnostic events Chronological list of the diagnostics events.

Show Events are displayed Select a particular event to display more detailed

information.

Go to date User input

•Gotodate

•Time

Use this function to go directly to a specific time in the list. In

this way, you avoid having to scroll through all the

information. The complete list is always visible, however.

Delete all entries Action You can delete all the calibration logbook entries here.

Diagnostics menu

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2.3 System information

Diagnostics/Logbooks

Function Options Info

Data logbooks Chronological list of the data logbook entries.

Show Events are displayed Select a particular event to display more detailed

information.

Show plot Graphic display of the logbook

entries

The entries are displayed according to your settings in the

General settings/Logbooks menu.

Go to date User input

•Gotodate

•Time

Use this function to go directly to a specific time in the list. In

this way, you avoid having to scroll through all the

information. The complete list is always visible, however.

Delete all entries Action You can delete all the calibration logbook entries here.

Save logbooks Options

• All event logbooks

• Calibration logbook

• Diagnostic logbook

• Configuration logbook

• HW version logbook

• Version logbook

Use this function to save the logbook to an SD card. You can

then open the file you saved (.csv) at the PC and process it in

MS-Excel for example.

Insert the SD card into the controller card reader and select

the logbook to be saved.

File format Options

•CSV

•FDM

Save the logbook in the preferred file format.

You can then open the CSV file you saved on the PC in MS

Excel, for example, and process it further1).

You can import the FDM files into Fieldcare and archive

them so they are tamper-proof.

1) CSV files use international number formats and separators. Therefore they must be imported into MS Excel as external data

with the correct format settings. If you double-click the file to open it, the data are only displayed correctly if MS Excel is

installed with the US country setting.

The file name is made up of the "Logbook ident" (Menu/Setup/General settings/Logbooks), an abbreviation for the

particular logbook and a time stamp.

Diagnostics/System information

Function Options Info

Device tag Read only Individual device tag, --> "General settings"

Order code Read only You can order identical hardware with this code.

This code changes on account of changes to the hardware

and you can enter the new code you received from the

manufacturer here1).

To find out what device version you have, enter the order code in the search screen at the following address:

www.products.endress.com/order-ident

Diagnostics menu

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2.4 Sensor information

Select the channel you want from the list of channels.

Information in the following categories is displayed:

• Sensor state

Extreme conditions to which the sensor has been exposed up to now, e.g. min./max. temperatures

• Operating time

Operating time of the sensor under defined extreme conditions

• Calibration information

Calibration data of the last calibration

• Sensor specifications

Measuring range limits for main measured value and temperature

Orig. order code ext. Read only Complete order code resulting from the product structure.

This code changes on account of changes to the hardware

and you can enter the new code here.

Serial number Read only The serial number allows you to access device data and

documentation on the Internet:

www.products.endress.com/device-viewer

Software version Read only Current version

SD card Read only

•Total

• Free memory

Total memory and space available

System modules

Depends on the electronics

module available, e.g.:

Base

Read only

•Description

• Serial number

•Ordercode

• Hardware version

• Software version

This information is provided for every electronics module

available. Specify the serial numbers and order codes when

servicing, for example.

Sensors

Depends on the sensors

connected

Read only

•Description

• Serial number

•Ordercode

• Hardware version

• Software version

This information is provided for every sensor available.

Specify the serial numbers and order codes when servicing,

for example.

Save system information

Save to SD card File name assigned

automatically (includes a time

stamp)

The information is saved on the SD card in a "sysinfo"

subfolder. The csv file can be read and edited in MS Excel for

example.

1) Provided you give the manufacturer all the information about changes to the hardware.

Diagnostics/System information

Function Options Info

Diagnostics menu

10 Endress+Hauser

• General information

Sensor identification information

The specific data that are displayed depends on what sensor is connected.

2.5 Simulation

You can simulate values at inputs and outputs for testing purposes:

• Current values at current outputs

• Measured values at inputs

• Relay contact opening or closing

Diagnostics/Simulation

Function Options Info

Current output x:y Simulation of an output current

This menu appears once for each current output.

Simulation Options

•On

•Off

Factory setting

Off

If you simulate the value at the current output, this is

indicated on the display by a simulation icon in front of the

current value.

Current 2.4 to 23.0 mA

Factory setting

4 mA

Set the desired simulation value.

Alarm relay

Relay x:y

Simulation of a relay state

This menu appears once for each relay.

Simulation Options

•On

•Off

Factory setting

Off

If you simulate the relay state, this is indicated on the display

by a simulation icon in front of the relay display.

State Options

•Low

•High

Factory setting

Low

Set the desired state.

The relay switches in accordance with your setting when

you switch on the simulation. The display shows "On"

(="Low") or "Off" (="High") for the simulated relay state.

Meas. inputs Simulation of a measured value

This menu appears once for each measuring input.

Channel : parameter

Sim. main value Options

•On

•Off

Factory setting

Off

If you simulate the measured value, this is indicated on the

display by a simulation icon in front of the measured value.

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