Endress+Hauser CM14-AAK User manual

Products Solutions Services
Operating Instructions
CM14
Transmitter, pH and ORP
BA01032C/09/EN/02.14
71257172
Valid as of FW version:
02.00.xx
AUTHORIZED DISTRIBUTOR:
InstrumentsAndControl.com
Houston, Texas USA
[email protected]
281-609-7170
AUTHORIZED DISTRIBUTOR:
InstrumentsAndControl.com
Houston, Texas USA
[email protected]
281-609-7170

CM14 Table of contents
Endress+Hauser 3
Table of contents
1 Safety instructions .............. 4
1.1 Workplace safety .................... 4
1.2 Requirements concerning the staff ...... 4
1.3 Operational safety ................... 4
1.4 Designated use ...................... 5
1.5 Technical improvement ............... 5
1.6 Return ............................. 5
1.7 Notes on safety conventions and
icons ............................... 5
2 Identification .................... 7
2.1 Device designation ................... 7
2.2 Scope of delivery ..................... 7
2.3 Certificates and approvals ............. 8
3 Installation ...................... 9
3.1 Incoming acceptance, transport,
storage ............................. 9
3.2 Installation ......................... 9
3.3 Dimensions ......................... 9
3.4 Installation procedure ............... 10
3.5 Post-installation check ............... 10
4 Wiring .......................... 11
4.1 Connecting the transmitter ........... 12
4.2 Post-connection check ............... 13
5 Operation ...................... 14
5.1 Display and device status indicator/
LED ............................... 14
5.2 Local operation at the device .......... 14
5.3 Icons .............................. 15
5.4 Operating functions ................. 16
5.5 Hold function ...................... 16
6 Commissioning ................ 17
6.1 Installation check and switching on the
device ............................. 17
6.2 Display settings (Display menu) ....... 17
6.3 Configuration of the device (Setup
menu) ............................ 17
6.4 Extended configuration (Extended
setup menu) ....................... 18
6.5 Device diagnostics (Diagnostics menu) .21
7 Calibration and adjustment .. 22
7.1 Definitions ......................... 22
7.2 pH sensors ......................... 22
7.3 ORP sensors ........................ 24
7.4 Device functions for calibration ....... 25
8 Maintenance .................. 25
9 Accessories .................... 26
9.1 Sensors ........................... 26
10 Troubleshooting ............... 27
10.1 Troubleshooting instructions ......... 27
10.2 Diagnostic messages ................ 27
10.3 Spare parts ........................ 32
10.4 Return ............................ 32
10.5 Disposal ........................... 33
11 Technical data ................. 33
Index ................................. 41

Safety instructions CM14
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1 Safety instructions
Reliable and safe operation of the transmitter is guaranteed only if the user reads these
Operating Instructions and complies with the safety instructions they contain.
1.1 Workplace safety
For work on and with the device:
‣Wear the required personal protective equipment according to federal/national
regulations.
1.2 Requirements concerning the staff
The personnel for installation, commissioning, diagnostics and maintenance must fulfill the
following requirements:
‣Trained, qualified specialists: must have a relevant qualification for this specific function
and task
‣Are authorized by the plant owner/operator
‣Are familiar with federal/national regulations
‣Before beginning work, the specialist staff must have read and understood the instructions
in the Operating Instructions and supplementary documentation as well as in the
certificates (depending on the application)
‣Following instructions and basic conditions
The operating personnel must fulfill the following requirements:
‣Being instructed and authorized according to the requirements of the task by the facility's
owner-operator
‣Following the instructions in these Operating Instructions
1.3 Operational safety
Risk of injury.
‣Operate the device in proper technical condition and fail-safe condition only.
‣The operator is responsible for interference-free operation of the device.
Conversions to the device
Unauthorized modifications to the device are not permitted and can lead to unforeseeable
dangers.
‣If, despite this, modifications are required, consult with Endress+Hauser.
Repair
To ensure continued operational safety and reliability,
‣Carry out repairs on the device only if they are expressly permitted.
‣Observe federal/national regulations pertaining to repair of an electrical device.
‣Use original spare parts and accessories from Endress+Hauser only.

CM14 Safety instructions
Endress+Hauser 5
Environmental requirements
If a plastic transmitter housing is permanently exposed to certain steam and air mixtures, this
can damage the housing.
‣If you are unsure, please contact your Endress+Hauser Sales Center for clarification.
‣If used in an approval-related area, observe the information on the nameplate.
1.4 Designated use
The transmitter evaluates measured values of an analytical sensor and displays them on its
multicolor display. Processes can be monitored and controlled using the transmitter outputs
and limit relays. The device is equipped with a wide range of software functions for this
purpose.
• The manufacturer accepts no liability for damages resulting from incorrect use or use other
than that designated. It is not permitted to convert or modify the device in any way.
• The device is designed for installation in a panel and must only be operated in an installed
state.
1.5 Technical improvement
The manufacturer reserves the right to modify technical data without prior notice. Please
contact your sales center for information on modifications or updates to the Operating
Instructions.
1.6 Return
For a return, e.g. in case of repair, the device must be sent in protective packaging. The
original packaging offers the best protection. Repairs must only be carried out by your
supplier's service organization.
When returning the device for repair, enclose a note with a description of the problem
and the application.
1.7 Notes on safety conventions and icons
1.7.1 Warnings
!DANGER
Causes (/consequences)
Consequences of non-compliance (if applicable)
‣Corrective action
‣This symbol alerts you to a dangerous situation. Failure to avoid the situation will result in
a fatal or serious injury.
!WARNING
Causes (/consequences)
Consequences of non-compliance (if applicable)
‣Corrective action
‣This symbol alerts you to a dangerous situation. Failure to avoid the situation can result in
a fatal or serious injury.

Safety instructions CM14
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!CAUTION
Causes (/consequences)
Consequences of non-compliance (if applicable)
‣Corrective action
‣This symbol alerts you to a dangerous situation. Failure to avoid this situation can result in
minor or more serious injuries.
NOTICE
Causes (/consequences)
Consequences of non-compliance (if applicable)
‣Corrective action
‣This symbol alerts you to situations which may result in damage to property.
1.7.2 Document symbols
Permitted
Indicates procedures, processes or actions that are permitted.
Preferred
Indicates procedures, processes or actions that are preferred.
Forbidden
Indicates procedures, processes or actions that are forbidden.
Additional information, tips
Reference to documentation
Reference to a page in this manual
Reference to a graphic

CM14 Identification
Endress+Hauser 7
2 Identification
2.1 Device designation
2.1.1 Nameplate
Compare the nameplate with the following diagram:
-10°C (14°F) < Ta < 60°C (140°F)
4
5
1
3
2
6
â 1
Liquiline
A0015221
 1 Nameplate of the transmitter (example)
1 Device designation
2 Order code, serial number and ID number of the device
3 Power supply
4 Power consumption
5 Output values
6 Temperature range
2.2 Scope of delivery
The scope of delivery of the transmitter comprises:
• Transmitter for panel mounting
• Operating Instructions
• Fastening fixtures

Identification CM14
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2.3 Certificates and approvals
CE mark, Declaration of Conformity
The process display unit is designed to meet state-of-the-art safety requirements, has been
tested, and left the factory in a condition in which it is safe to operate. The device complies
with the applicable standards and regulations in accordance with EN 61 010-1 "Safety
requirements for electrical equipment for measurement, control and laboratory use".
The device described in these Operating Instructions therefore complies with the statutory
requirements of the EU Directives. The manufacturer confirms that the device has been
successfully tested by applying the CE mark.
An overview of all the certificates and approvals available is provided in the "Technical data"
section.

CM14 Installation
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3 Installation
3.1 Incoming acceptance, transport, storage
The permitted ambient and storage conditions must be observed. The precise specifications
can be found in Section "Technical data" (→  33).
3.1.1 Incoming acceptance
On receipt of the goods, check the following points:
• Are the packaging or contents damaged?
• Is anything missing from the delivery? Compare the scope of delivery with the information
you specified in the order.
3.1.2 Transportation and storage
Note the following points:
• Pack the device so that is protected against impact for storage and transportation. The
original packaging provides optimum protection.
• The permitted storage temperature range is –40 to +85 °C (–40 to +185 °F); it is possible to
store the device in the borderline temperature ranges for a limited period (maximum 48
hours).
3.2 Installation
NOTICE
Overheating due to heat accumulation in the device
‣To avoid heat accumulation, please always make sure the device is sufficiently cooled.
If the device is operated in the upper temperature limit range, this reduces the operating
life of the display.
The transmitter is designed to be used in a panel.
The orientation is determined by the readability of the display. Connections and outputs are
fitted on the rear of the device. The wires are connected by means of number-coded terminals.
Ambient temperature range:–10 to +60 °C (14 to 140 °F)
3.3 Dimensions
Observe the installation depth of 150 mm (5.91 ") for the device incl. terminals and fastening
clips.
More dimensions can be found in Section "Technical data" (→  33).
• Panel cutout: 92 mm x 45 mm (3.62 in x 1.77 in).
• Panel thickness: max. 26 mm (1 in).
• Max. viewing angle range: 45° to the left and right from the central display axis.
• If the devices are arranged horizontally beside one another in the X-direction, or arranged
vertically on top of one another in the Y-direction, the mechanical distance (specified by the
housing and front section) must be observed.

Installation CM14
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3.4 Installation procedure
The required panel cutout is 92 mm x 45 mm (3.62 in x 1.77 in).
A0015216
 2 Installation in the panel
1. Screw the threaded rods (item 2) into the positions provided on the mounting frame
(item 1). Four opposing screw positions (item 3/4) are available for this purpose.
2. Push the device with the sealing ring through the panel cutout from the front.
3. To secure the tube in the panel, hold the device in a horizontal position and push the
installation frame (item 1), with the threaded rods screwed in, over the tube until the
frame locks into position.
4. Tighten the threaded rods to fasten the device in place.
To disassemble the device, the mounting frame can be unlocked at the locking elements (item
5) and then removed.
3.5 Post-installation check
• Is the sealing ring undamaged?
• Is the mounting frame securely engaged on the housing of the device?
• Are the threaded rods tightened?
• Is the device positioned in the center of the panel cutout?

CM14 Wiring
Endress+Hauser 11
4 Wiring
!WARNING
Danger from electrical voltage
‣The entire connection of the electrical system must take place while the device is de-
energized.
Danger if protective ground is interrupted
‣The protective ground connection must be established before any other connection is
made.
NOTICE
Thermal load of the lines
‣Use suitable lines for temperatures of 5 °C (9 °F) above ambient temperature.
Malfunction or destruction of the device due to incorrect supply voltage
‣Prior to commissioning, make sure the supply voltage matches the specifications on the
nameplate (bottom side of the housing).
Ensure the emergency shutoff of the device
‣Provide a suitable switch or power-circuit breaker in the building installation. This switch
must be provided within easy reach of the device and be labeled as a disconnector.
Protect device from overload
‣Provide a overload protection unit (rated current = 10 A) for the power supply line.
Incorrect wiring can cause destruction of the device
‣Observe the terminal designation on the rear of the device.
Energy-rich transients in long signal lines
‣Connect suitable upstream overvoltage protection in series.
It is permitted to connect a mixture of safety extra low voltage and voltage which poses a
shock hazard to the relays.

Wiring CM14
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4.1 Connecting the transmitter
A0015215
 3 Connection diagram of the transmitter
Terminal Description
87 Terminal for Memosens cable, brown, sensor power supply U+
88 Terminal for Memosens cable, white, sensor power supply U-
97 Terminal for Memosens cable, green, Com A
98 Terminal for Memosens cable, yellow, Com B
SHD Terminal for Memosens cable, shield
D11 Terminal for alarm output, +
D12 Terminal for alarm output, -
L/+
Terminal for transmitter supply voltage
N/-
 PE
133 Terminal for analog output 1, +
134 Terminal for analog output 1, -
233 Terminal for analog output 2, +
234 Terminal for analog output 2, -
R11, R12, R13 Terminal for relay 1
R21, R22, R23 Terminal for relay 2

CM14 Wiring
Endress+Hauser 13
4.2 Post-connection check
Device condition and specifications Notes
Are the device or cables damaged? Visual inspection
Electrical connection Notes
Does the supply voltage match the specifications on the nameplate? 24 to 230 V AC/DC
(–20 % / +10 %) 50/60 Hz
Are all of the terminals firmly engaged in their correct slots? Is the coding on the
individual terminals correct?
-
Are the mounted cables strain-relieved? -
Are the supply voltage and signal cables connected correctly? See connection diagram,
(→  3,  12) and on the
housing.

Operation CM14
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5 Operation
The easy operating concept of the device makes it possible for users to commission the device
for many applications without a printed set of Operating Instructions.
5.1 Display and device status indicator/LED
A0015891
 4 Display of the device
1 Dot-matrix section
2 7-segment section
3 LED status indicator power supply connected
4 LED status indicator alarm function
5 LED status indicator limit function relay 1/2
6 Operating keys
The device provides a backlit LC display which is split into two sections. The segment section
shows the measured value.
In the dot matrix section, additional channel information, such as the TAG, unit or bar graph,
is shown in display mode. Operating text in English is displayed here during operation.
The parameters for configuring the display are explained in detail in Section Commissioning.
In the event of an error, the device switches automatically between displaying the error and
displaying the channel, see Sections Device diagnostics (→  21) and Troubleshooting
(→  27).
5.2 Local operation at the device
The device is operated by means of the three keys integrated in the front part of the device
A0010420

CM14 Operation
Endress+Hauser 15
A0010421
• Open the configuration menu
• Confirm an entry
• Select a parameter or submenu offered in the menu
A0010422
Within the configuration menu:
• Scroll step-by-step through the parameters/menu items/characters offered
• Change the value of the selected parameter (increase or decrease)
Outside the configuration menu:
Display enabled and calculated channels, as well as min. and max. values for all the active channels.
You can always exit items/submenus at the end of the menu by selecting "x Back".
Leave the setup directly without saving the changes by pressing the ‘-’ and ‘+’ keys
simultaneously for over 3 s seconds.
5.3 Icons
5.3.1 Display icons
Hold function (→  16) aktiv.
Max Maximum value/value of the maximum indicator of the channel displayed.
Min Minimum value/value of the minimum indicator of the channel displayed.
Error, under/over range.
No display of the measured value.
In the dot matrix section, the error and the channel name (TAG) are specified.
5.3.2 Icons in the editing mode
The following characters can be used to enter user-defined text:
‘0-9’, ‘a-z’, ‘A-Z’, ‘+’, ‘-’, ‘*’, ‘/’, ‘\’, ‘%’, ‘°’, ‘2’, ‘3’, ‘m’, ‘.’, ‘,’, ‘;’, ‘:’, ‘!’, ‘?’, ‘_’, ‘#’, ‘$’, ‘"’, ‘´’, ‘(’, ‘)’,
‘~’
For numerical entries, the numbers ‘0-9’ and the decimal point are available.
Furthermore, the following icons are used in the editing mode:
Symbol for the setup
Symbol for the Expert setup
Symbol for diagnostics
Accept entry.
If this icon is selected, the information entered is accepted at the position and the user exits the
editing mode.
Reject entry.
If this icon is selected, the information entered is rejected and the user exits the editing mode. The
text configured beforehand remains unchanged.

Operation CM14
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Move one position to the left.
If this icon is selected, the cursor moves one position to the left.
Delete back.
If this icon is selected, the character to the left of the cursor is deleted.
Delete all.
If this icon is selected, all the information entered is deleted.
5.4 Operating functions
The operating functions of the transmitter are organized into the following menus:
Display Adjusting the device display: contrast, brightness, switching time for displaying the measured values
Setup Device settings
For descriptions of the individual settings, refer to the chapter on Commissioning (→  17).
Calibration Carrying out the sensor calibration
For descriptions of the calibration functions, refer to the chapter on Calibration.
Diagnostics Device information, diagnostic logbook, sensor information, simulation
5.5 Hold function
The effect of the Hold function is to "freeze" the current outputs and relay states. It can be
switched on or off manually (menu Setup→Manual hold). Furthermore, the Hold function is
automatically activated during sensor calibration.
The Hold function remains active after discontinuation of the hold condition for an adjustable
Hold-release time. The Hold-release time can be set under Setup→Extended
setup→System→Hold release.
The measured value display is not affected by the Hold function. The Hold symbol is displayed
behind the measured value.

CM14 Commissioning
Endress+Hauser 17
6 Commissioning
6.1 Installation check and switching on the device
Make sure that all post-connection checks have been carried out before you commission your
device:
• "Installation check" checklist, (→  10).
• "Post-connection check" checklist, (→  13).
Once the operating voltage is applied, the green LED lights up and the display indicates that
the device is operational.
When you commission the device for the first time, you program the setup in accordance with
the descriptions provided in these Operating Instructions in the following sections.
When commissioning a device already configured or preset, measuring is immediately started
as per the settings. The values of the channels currently activated appear on the display.
Remove the protective foil from the display as this restricts display legibility otherwise.
6.2 Display settings (Display menu)
Press the 'E' button during operation to call up the main menu. The Display menu appears in
the display. Pressing the 'E' key again opens the menu. Select the "x Back" option at the end of
each menu/submenu to navigate one level higher in the menu structure.
Parameter Configuration options Description
Contrast 1-7
Default: 6
Configures the display contrast.
Brightness 1-7
Default: 6
Configures the display brightness.
Display scrolling 0, 3, 5, 10 sec Switching time between the two measured
values.
0 means no switching.
6.3 Configuration of the device (Setup menu)
Press the 'E' button during operation to call up the main menu. Use the '+'- and '-' buttons to
navigate through the available menus. When the desired menu is displayed, press the 'E' key
to open the menu. Select the "x Back" option at the end of each menu/submenu to navigate
one level higher in the menu structure.

Commissioning CM14
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The Setup menu includes the most important settings for the function of the device.
Parameter Configuration options Description
Current range 4-20 mA
0-20 mA
Configure the measuring range for the current
output.
Out 1 0/4 mA Numerical
value0.000 to 99 999
0.0 pH
Physical value corresponding to the lower
range limit of the analog output.
If the set value is undershot, the current output
goes to the saturation current 0/3.8 mA.
Out 1 20 mA Numerical
value0.000 to 99 999
12 pH
Physical value corresponding to the upper
range limit of the analog output.
If the set value is exceeded, the current output
goes to the saturation current 20.5 mA.
Out 2 0/4 mA Numerical value–50 to 250 °C
0 °C
Temperature corresponding to the measuring
range lower limit of the temperature input.
If the set value is undershot, the current output
goes to the saturation current 0/3.8 mA.
Out 2 20 mA Numerical value–50 to 250 °C
100 °C
Temperature corresponding to the measuring
range upper limit of the temperature input.
If the set value is exceeded, the current output
goes to the saturation current 20.5 mA.
Damping main 0 to 60 s
0 s
Configure the damping for the low-pass
filtering of the input signals.
Extended setup Advanced settings for the device, such as the
relay, limit values etc.
The functions are described in the following
chapter, .
Manual hold Off, On Function to hold the current and relay outputs
6.4 Extended configuration (Extended setup menu)
Press the 'E' button during operation to call up the main menu. Press the '+' button during
operation to navigate to the Setup menu. Press the 'E' key to open the menu. Navigate to the
Extended Setup menu and open the menu by pressing the 'E' key. Select the "x Back" option at
the end of each menu/submenu to navigate one level higher in the menu structure.
Parameter Configuration options Description
System General settings
Device tag Free text
Max. 16 characters
Enter the device designation (tag).
Temp. Unit °C
°F
Configures the temperature unit.
Hold release 0 to 600 s
0 s
Configuration that specifies how long a device
hold continues once the hold condition no
longer applies.

CM14 Commissioning
Endress+Hauser 19
Parameter Configuration options Description
Alarm delay 0 to 600 s
0 s
Delay time for issuing an alarm. This
suppresses alarm conditions that occur for a
period shorter than the alarm delay time.
Input Settings of the device
Main value pH
mV
Unit of the physical value.
Format None (only pH)
One
Two
Configure the number of decimal places for the
display.
Damping main 0 to 60 s
0 s
Configure the damping for the low-pass
filtering of the input signals.
Temp. comp. Off
Automatic
Manual
Configures the temperature compensation.
Only visible for Main value = pH
Temp. offset Numerical value: –50 to 250 °C
0 °C
Configures a temperature offset.
Only visible for Main value = mV
Ref. temp. Numerical value:
–5.0 to 100 °C
25 °C
Configures the reference temperature.
Only visible for Main value = pH and Temp.
comp. = Manual.
Calib. settings Settings for the calibration
Buffer 1 2.00 pH
4.00 pH
7.00 pH
9.00 pH
9.18 pH
10.00 pH
12.00 pH
pH value of buffer solution 1.
Only visible for Main value = pH
Buffer 2 2.00 pH
4.00 pH
7.00 pH
9.00 pH
9.18 pH
10.00 pH
12.00 pH
pH value of buffer solution 2.
Only visible for Main value = pH
Buffer mV Numerical value
100 mV
mV value for buffer solution.
Only visible for Main value = mV
Stability crit.
Delta mV 1 to 10 mV
1 mV
Duration 10 to 60 s
20 s
Process check Check the process settings.
Function On, Off Switch on the process check.

Commissioning CM14
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Parameter Configuration options Description
Inactive time 1 to 240 min
60 min
Duration of the process check.
Analog outputs Settings for analog outputs.
Current range 4-20 mA
0-20 mA
Current span for analog output.
Out 1 0/4 mA Numerical value 0.000 -
99999
0.0 pH
Physical value corresponding to the lower
range limit of the analog output.
Out 1 20 mA Numerical value 0.000 -
99999
12 pH
Physical value corresponding to the upper
range limit of the analog output.
Out 2 0/4 mA Numerical value–50 to 250 °C
0 °C
Temperature corresponding to the measuring
range lower limit of the temperature input.
Out 2 20 mA Numerical value–50 to 250 °C
100 °C
Temperature corresponding to the measuring
range upper limit of the temperature input.
Damping main value 0 to 60 s
0 s
Configure the damping for the low-pass
filtering of the input signals.
Relay 1/2 Settings for the relay outputs.
Function Off, Min limit, Max limit, In
band, Out band, Error
Configure the function of the relay.
No additional settings are possible in the event
of function = Error.
Assignment Main, Temp Assign the relay to the main or temperature
input.
Set point Numerical value
0.0
Configures the limit value.
Set point 2 Numerical value
0.0
Only for function In band or Out band.
Hyst. Numerical value
0.0
Configures the hysteresis.
Delay time 0 to 60 s
0 s
Configure the delay until the relay switches.
Factory default Reset the device settings to the factory settings.
Please confirm no, yes Confirm reset.
6.4.1 Configuration of the relays
The device has two relays with limit values that are either switched off or can be allocated to
the input signal. The limit value is entered as a numerical value including the position of the
decimal point. The way the changeover contact is wired ((→  35)) determines whether
the relays act as an NO or NC relay. Limit values are always assigned to a relay. Each relay can
be assigned a channel or calculated value. In "Error" mode, the relay acts as an alarm relay and
switches for each error or alarm.