Endress+Hauser Liquisys M CCM253 Brief Operating Instructions
Transmitter for free chlorine, chlorine dioxide and total chlorine
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Summary of Contents for Endress+Hauser Liquisys M CCM253
- Page 1 Products Solutions Services KA01757C/07/EN/01.25-00 71712049 2025-04-25 Brief Operating Instructions Liquisys M CCM253 Transmitter for free chlorine, chlorine dioxide and total chlorine...
- Page 2 Table of contents Liquisys M CCM253 Table of contents About this document ............. . 3 Safety information .
- Page 3 Liquisys M CCM253 About this document About this document Safety information Structure of information Meaning This symbol alerts you to a dangerous situation. DANGER Failure to avoid the dangerous situation will result in a fatal or serious injury. Causes (/consequences)
- Page 4 Basic safety instructions Liquisys M CCM253 Basic safety instructions Requirements for the personnel • Installation, commissioning, operation and maintenance of the measuring system may be carried out only by specially trained technical personnel. • The technical personnel must be authorized by the plant operator to carry out the specified activities.
- Page 5 Liquisys M CCM253 Incoming acceptance and product identification Operational safety Before commissioning the entire measuring point: Verify that all connections are correct. Ensure that electrical cables and hose connections are undamaged. Procedure for damaged products: Do not operate damaged products, and protect them against unintentional operation.
- Page 6 Incoming acceptance and product identification Liquisys M CCM253 Check the technical documentation and all other necessary documents, e.g. certificates, to ensure they are complete. If one of the conditions is not satisfied, contact the manufacturer. Scope of delivery • 1 transmitter •...
- Page 7 Liquisys M CCM253 Installation 3.3.3 Nameplate The nameplate provides you with the following information on your device: • Manufacturer identification • Order code • Extended order code • Serial number • Ambient and process conditions • Input and output values •...
- Page 8 Installation Liquisys M CCM253 11 0.43 70 2.76 115 4.53 154 6.06 170 6.69 A0059137 2 Dimensions There is a hole in the perforation for the cable entry (connection of supply voltage). It serves as a pressure balance during air shipment. Make sure no moisture penetrates the inside of the housing before the cable installation.
- Page 9 Liquisys M CCM253 Installation A0059154 3 View into the field housing Removable electronics box Fuse Terminals Partition plate Installing the device Options for securing the field housing: • Wall mounting with fixing screws • Post mounting to cylindrical pipes •...
- Page 10 Installation Liquisys M CCM253 4.2.1 Wall mounting Ø 6 0.24 154 6.06 A0059157 4 Wall mounting Fixing bore holes Plastic caps Drill the bore holes as illustrated in . Drive two fixing screws through the fixing bore holes (1) from the front.
- Page 11 Liquisys M CCM253 Electrical connection Proceed as follows to mount the transmitter on a post: Guide the two securing screws (1) of the mounting kit through the openings on the securing plate (3). Screw the securing plate onto the transmitter using the four fixing screws (2).
- Page 12 Electrical connection Liquisys M CCM253 Connecting the device WARNING Risk of electric shock! ‣ At the supply point, the power supply must be isolated from dangerous live cables by double or reinforced insulation in the case of devices with a 24 V power supply.
- Page 13 Liquisys M CCM253 Electrical connection Redox Ref. Red. Cl 2 ClO 2 Cl 2 ClO 2 10–50 V 15 V L– A0001903 7 Electrical connection of the transmitter (version 1) Endress+Hauser...
- Page 14 Electrical connection Liquisys M CCM253 pH/ORP input (optional) Auxiliary voltage output Sensor CCS140/141/240/241 Alarm (current-free contact position) Sensor (alternative) Relay 1 (current-free contact position) Signal output 1, chlorine / chlorine dioxide Relay 2 (current-free contact position) Signal output 2, temperature, pH or ORP...
- Page 15 Liquisys M CCM253 Electrical connection Redox Ref. Red. Cl 2 ClO 2 15 V Cl 2 ClO 2 10–50 V 15 V L– A0001904 8 Electrical connection of the transmitter (version 2) Endress+Hauser...
- Page 16 Electrical connection Liquisys M CCM253 pH/ORP input (optional) Auxiliary voltage of terminal 85/86 can be used Sensor CCS120 Alarm (current-free contact position) Auxiliary voltage output Relay 1 (current-free contact position) Signal output 1, total chlorine Relay 2 (current-free contact position)
- Page 17 Liquisys M CCM253 Electrical connection NOTICE Non-observance could cause incorrect measurement. ‣ Protect the cable ends and terminals from moisture. ‣ Do not connect terminals marked NC. ‣ Do not connect terminals that are not marked. Label the sensor terminal block with the sticker provided.
- Page 18 Electrical connection Liquisys M CCM253 Connection diagram Assignment Wire Transmitter terminal NTC1 white* NTC2/AGND Brown Shield * The white and yellow wires are interconnected in the TOP68 connector. A0026048 10 TOP68 connection; pin arrangement of connector and coupling (shown from contact side) ‣...
- Page 19 Liquisys M CCM253 Electrical connection Sensor Maximum cable length Chlorine/chlorine dioxide sensors CCS140/141/240/ 241 Max. 30 m (98.4 ft) with cable CMK Total chlorine sensor CCS120 Max. 15 m (49.2 ft) with cable CYK71 pH/ORP measurement Max. 50 m (164 ft) with cable CYK71...
- Page 20 Operation options Liquisys M CCM253 Normal operating status Alarm condition Device in operation and no error message present Error message present (alarm LED red) or device defective (alarm LED off): or de-energized (alarm LED off): • Relay energized • Relay de-energized •...
- Page 21 Liquisys M CCM253 Operation options Display and operating elements 6.2.1 Structure and function of the operating menu LED indicators Indicates the current operating mode, "Auto" (green LED) or "Manual" (yellow LED) A0027220 Indicates the activated relay in the "Manual" mode (red LED) The status of relays 3 and 4 is indicated on the LC display.
- Page 22 Operation options Liquisys M CCM253 Indicator of working status of relays 3/4: inactive, active Function code indicator In measuring mode: measured variable - in setup mode: configured variable In measuring mode: secondary measured value - in setup/calibr. mode: e.g. Setting value Indicator for autom.
- Page 23 Liquisys M CCM253 Operation options Functions of keys CAL key When you press the CAL key, the device first prompts you for the calibration access code: A0027235 • Code 22 for calibration • Code 0 or any other code for reading the last calibration data Use the CAL key to accept the calibration data or to switch from field to field within the calibration menu.
- Page 24 Operation options Liquisys M CCM253 PLUS key and MINUS key In the Setup mode, the PLUS and MINUS keys have the following functions: • Selection of function groups. Press the MINUS key to select the function groups in the order given in the "System configuration"...
- Page 25 Liquisys M CCM253 Operation options Locking the keyboard Press the PLUS and ENTER key simultaneously for at least 3 s to lock the keyboard against any unauthorized data entry. All the settings can continue to be read. The code prompt displays the code 9999.
- Page 26 Operation options Liquisys M CCM253 Select relay or function. Use the REL key to switch between the relays. The relay selected and the switch status (ON/OFF) is displayed on the second line of the display. A0027241 In the manual mode, the measured value is displayed continuously (e.g.
- Page 27 Liquisys M CCM253 Operation options Access codes All device access codes are fixed and cannot be altered. When the device requests the access code, it distinguishes between different codes. • CAL key + code 22: access to Calibration and Offset menu •...
- Page 28 Commissioning Liquisys M CCM253 Commissioning Function check WARNING Incorrect connection, incorrect supply voltage Safety risks for staff and device malfunctions! ‣ Check that all connections have been established correctly in accordance with the wiring diagram. ‣ Ensure that the supply voltage matches the voltage indicated on the nameplate.
- Page 29 Liquisys M CCM253 Commissioning Function display: The displayed code indicates the function position in the function group. Err.delay Additional information A0025560-EN 18 Information for the user on the display To make it easier to select and find function groups...
- Page 30 Commissioning Liquisys M CCM253 User entry Range of Display adjustment (factory settings in bold) In S1, select the language, e.g. "ENG" for English. ENG = English Confirm the entry by pressing the ENTER key. GER = German FRA = French...
- Page 31 Liquisys M CCM253 Commissioning User entry Range of Display adjustment (factory settings in bold) In A5, enter the delay time for controller switch-on. In the case of chlorine/chlorine dioxide control, a 0 to 2000 s delay until the reception of a representative measured value is recommended after a long period without flow.
- Page 32 *71712049* 71712049 www.addresses.endress.com...
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