Endress+Hauser CM14 User manual

CM14
Transmitter, pH and ORP
BA01032C/09/EN/01.11
71140560

CM14 Table of contents
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) .................. 20
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
4
1 Safety instructions
Safe operation of the transmitter is only guaranteed if these Operating Instructions have been
read and the safety instructions they contain have been observed.
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.
Hazardous area
To eliminate a danger for persons or for the facility when the device is used in the hazardous
area (e.g. explosion protection, pressure vessel safety):
►Based on the nameplate, check whether the ordered device is permitted for the intended use
in the hazardous area.

CM14 Safety instructions
5
►Observe the specifications in the separate supplementary documentation that is an integral
part of these Instructions.
1.4 Designated use
The transmitter evaluates measured values of an analytical sensor and shows them on its
multicolored display. Using the unit's outputs and limit relays, processes can be monitored and
controlled. 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. The device may not be converted or modified in any way.
• The process display unit has been designed for panel installation and may only be operated in
an installed state.
1.5 Technical improvement
The manufacturer reserves the right to adapt technical details to the most up-to-date technical
developments without prior notice. Contact your sales center for current information and updates
to these 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.
Enclose a note describing the fault and the application when sending the unit in for repair.
1.7 Notes on safety conventions and icons
1.7.1 Warning instructions
!DANGER
Cause (/effects)
Where applicable, consequences of failure to comply
►Avoidance measure
►Indicates an imminently hazardous situation which, if not avoided, will result in death or
serious injury.
!WARNING
Cause (/effects)
Where applicable, consequences of failure to comply
►Avoidance measure
►Indicates a potentially hazardous situation which, if not avoided, could result in death or
serious injury.

Safety instructions CM14
6
!CAUTION
Cause (/effects)
Where applicable, consequences of failure to comply
►Avoidance measure
►Indicates a potentially hazardous situation which, if not avoided, may result in minor to
moderate injury.
NOTICE
Cause (/effects)
Where applicable, consequences of failure to comply
►Avoidance measure
►This note alerts you to situations that can cause property damage.
1.7.2 Document symbols
Allowed
Indicates procedures, processes or actions that are allowed.
Preferred
Indicates procedures, processes or actions that are preferred.
Forbidden
Indicates procedures, processes or actions that are forbidden.
Additional information, tip
Reference to documentation
Reference to page of these instructions
Reference to a graphic

CM14 Identification
7
2 Identification
2.1 Device designation
2.1.1 Nameplate
Compare the nameplate with the following illustration:
A0015221
å 1 Nameplate of the transmitter (example)
1Device designation
2 Order code, serial number and ID number of the device
3 Power supply
4 Power consumption
5 Output variables
6 Temperature range
2.2 Scope of delivery
The scope of delivery of the transmitter comprises:
• Transmitter for panel mounting
• Operating Instructions
• Fastening material

Identification CM14
8
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 meets the relevant
standards and directives as per EN 61 010-1 "Safety requirements for electrical equipment for
measurement, control and laboratory use."
Thus, the device described in these Operating Instructions meets the legal requirements of the
EU directives. The manufacturer confirms successful testing of the device by affixing to it the CE
mark.
For an overview of all available certificates and approvals, refer to the "Technical data" chapter.

CM14 Installation
9
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" (® ä 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" (® ä 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
10
3.4 Installation procedure
The required panel cutout is 92 mm x 45 mm (3.62 in x 1.77 in).
A0015216
å 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?