Endress+Hauser Liquisys M CPM223 Operating Instructions Manual
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Endress+Hauser Liquisys M CPM223 Operating Instructions Manual

Transmitter for ph and orp
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BA00194C/07/EN/14.13
71212636
valid as of:
software version 2.70
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Operating Instructions

Liquisys M CPM223/253
Transmitter for pH and ORP
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Summary of Contents for Endress+Hauser Liquisys M CPM223

  • Page 1: Operating Instructions

    Products Solutions Services BA00194C/07/EN/14.13 71212636 valid as of: software version 2.70 Operating Instructions Liquisys M CPM223/253 Transmitter for pH and ORP...

  • Page 2: About This Document

    Corrective action This symbol alerts you to situations that can result in NOTICE damage to property and equipment. Cause/situation Consequences if safety message is not heeded ‣ Action/note Symbols Additional information, tips Permitted or recommended Forbidden or not recommended Endress+Hauser...

  • Page 3: Table Of Contents

    Liquisys M CPM223/253 Table of contents Basic safety instructions ... . . 5 Operability ..... . . 29 Requirements for the personnel .
  • Page 4 Liquisys M CPM223/253 Accessories ..... .100 10.1 Sensors ....... . . 100 10.2 Connection accessories .

  • Page 5: Basic Safety Instructions

    Liquisys M CPM223/253 Basic safety instructions Basic safety instructions Requirements for the personnel ‣ Installation, commissioning, operation and maintenance of the measuring system must only be carried out by trained technical personnel. ‣ The technical personnel must be authorized by the plant operator to carry out the specified activities.

  • Page 6: Product Safety

    Basic safety instructions Liquisys M CPM223/253 Product safety The product 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. Relevant regulations and European standards have been observed.

  • Page 7: Incoming Acceptance And Product

    Liquisys M CPM223/253 Incoming acceptance and product identification Incoming acceptance and product identification Incoming acceptance ‣ Make sure the packaging is undamaged! ‣ Inform the supplier about any damage to the packaging. Keep the damaged packaging until the matter has been settled.

  • Page 8: Product Identification

    Incoming acceptance and product identification Liquisys M CPM223/253 Product identification 2.3.1 Nameplate The nameplate contains the following information: • Manufacturer data • Order code • Extended order code • Serial number • Operating conditions • Safety icons Compare the order code on the nameplate with your order.

  • Page 9: Installation

    • Commission the transmitter as explained in the "Commissioning" section. 3.1.1 Measuring system A complete measuring systems comprises: • The transmitter Liquisys M CPM223 or CPM253 • A pH/ORP electrode with or without an integrated temperature sensor • An immersible, flow or retractable assembly • A measuring cable(e.g. CPK9)

  • Page 10: Installation Conditions

    Installation Liquisys M CPM223/253 Installation conditions 3.2.1 Field instrument Pg 13.5 Pg 7 Pg 16 0.43 REL1 ALARM REL2 REL1 REL2 70 / 2.76 115 / 4.53 154 / 6.06 170 / 6.69 mm / inch a0005733 Fig. 2: Field instrument There is a hole in the punching for the cable entry (connection of supply voltage).

  • Page 11: Panel-Mounted Instrument

    Liquisys M CPM223/253 Installation 3.2.2 Panel-mounted instrument 0.24 92 / 3.62 90 / 3.54 mm / inch a0005735 Fig. 4: Panel-mounted instrument Endress+Hauser...

  • Page 12: Installation Instructions

    Installation Liquisys M CPM223/253 Installation instructions 3.3.1 Field instrument There are several ways of securing the field housing: • Wall mounting with fixing screws • Post mounting to cylindrical pipes • Post mounting to square securing masts NOTICE Effect of climate conditions (rain, snow, direct sun etc.) Impaired operation to complete transmitter failure ‣...
  • Page 13 Liquisys M CPM223/253 Installation Transmitter post mounting You require a post mounting kit to secure the field device to horizontal and vertical posts or pipes (max. Ø 60 mm (2.36")). The kit can be acquired as an accessory (see "Accessories" section).
  • Page 14 Installation Liquisys M CPM223/253 You can also secure the field device to a square universal post in conjunction with the weather protection cover. These can be acquired as accessories, see "Accessories" section. a0005738 Fig. 7: Mounting field device with universal posts and weather protection cover...

  • Page 15: Panel-Mounted Instrument

    Liquisys M CPM223/253 Installation 3.3.2 Panel-mounted instrument The panel-mounted instrument is secured with the clamping screws supplied (see  å 8). The necessary installation depth is approx. 165 mm (6.50"). +0.5 +0.02 / 3.62 max. 45 / 1.77 approx. 25 / 139 / 5.47...

  • Page 16: Electrical Connection

    Electrical connection Liquisys M CPM223/253 Electrical connection WARNING Device is energized Improper connection can cause injury or death. ‣ The electrical connection must only be carried out by a certified electrician. ‣ Technical personnel must have read and understood the instructions in this manual and must adhere to them.

  • Page 17: Electrical Connection Without Memosens

    Liquisys M CPM223/253 Electrical connection Electrical connection without Memosens functionality 4.2.1 Connection diagram The wiring diagram depicted in  å 9 shows the connections of an instrument equipped with all the options. Connecting the sensors to the various measuring cables is explained in more detail in the "Measuring cables and sensor connection"...
  • Page 18 Electrical connection Liquisys M CPM223/253 Pay attention to the following: • The device is approved for protection class II and is generally operated without a protective earth connection. • To guarantee measuring stability and functional safety, you have to ground the outer screen of the sensor cable: –...
  • Page 19 Liquisys M CPM223/253 Electrical connection Panel-mounted instrument connection 131081-4E 131081-4E 131084-4C 131084-4C Sensor Sensor BNC: pH/Redox + REF BNC: pH/Redox + REF (Glass) (Glass) IsFET IsFET REL1 REL1 31 + 31 + Glass Glass Redox Redox 32 - 32 -...

  • Page 20: Measuring Cable And Sensor Connection

    Electrical connection Liquisys M CPM223/253 4.2.2 Measuring cable and sensor connection You require screened special measuring cables to connect pH and ORP electrodes to the transmitter. The following multi-core and ready-to-use cable types can be used: Sensor type Cable Extension...
  • Page 21 Liquisys M CPM223/253 Electrical connection Field instrument measuring cable connection Proceed as follows to connect a pH-electrode to the field instrument: Open the housing cover to access the terminal block in the connection compartment. Break the punching of a cable gland from the housing, mount a PG gland and guide the cable through this Pg gland.
  • Page 22 Electrical connection Liquisys M CPM223/253 8. Push the BNC connector housing 9 over the cable. The inner conductor must be located at clamping surface 10 of the connector. 9. Tighten the cable gland 5. 10.Insert the clamp element 11 and screw in the connector cover 12.
  • Page 23 Liquisys M CPM223/253 Electrical connection BN BNC CPK1 CPK1 CPS12 CPS12 C07-CPM2x3xx-04-06-00-xx-011.eps Fig. 18: Asymmetrical (without PML) and symmetrical (with PML) connection of ORP electrodes Panel-mounted instrument Field instrument Potential matching (PM) in the medium for symmetrical connection The pH and ORP sensors can be connected both symmetrically and asymmetrically.

  • Page 24: Functionality

    Electrical connection Liquisys M CPM223/253 Electrical connection with Memosens functionality 4.3.1 Connection diagram The wiring diagram depicted in  å 19 shows the connections of an instrument equipped with all the options. Connecting the sensors is explained in more detail in the "Measuring cables and sensor connection"...
  • Page 25 Liquisys M CPM223/253 Electrical connection Field instrument connection with Memosens functionality Guide the measuring cables through the PG glands into the housing. Connect the measuring cables in accordance with the terminal assignment ( å 20). SENSOR REL 4 REL 3...

  • Page 26: Measuring Cable And Sensor Connection

    Electrical connection Liquisys M CPM223/253 4.3.2 Measuring cable and sensor connection To connect pH electrodes with MemoSens functionality to the transmitter, you require the terminated data transmission cable CYK10 with 2x2 cores, twisted pair, screen and PVC jacket. Structure of the measuring cable...
  • Page 27 Liquisys M CPM223/253 Electrical connection Field instrument measuring cable connection Proceed as follows to connect a pH-electrode with Memosens functionality to the field instrument: Open the housing cover to access the terminal block in the connection compartment. Break the punching of a cable gland from the housing, mount a PG gland and guide the cable through this Pg gland.

  • Page 28: Alarm Contact

    Electrical connection Liquisys M CPM223/253 Alarm contact a0006415 Fig. 25: Recommended fail-safe switching for the alarm contact A Normal operating status B Alarm condition Normal operating status: Alarm condition Device in operation and no error message Error message present (alarm LED red) or...

  • Page 29: Operability

    Liquisys M CPM223/253 Operability Operability Quick operation guide You have the following ways of operating the transmitter: • On site via the key field • Via the HART interface (optional, with corresponding order version) per: – HART handheld terminal or –...

  • Page 30: Operating Elements

    Operability Liquisys M CPM223/253 LC display R262 Setpoint C07-CxM2x3xx-07-06-00-en-004.eps Fig. 26: Transmitter LC display Indicator for measuring mode (normal operation) In measuring mode: measured variable Indicator for calibration mode In setup mode: configured variable Indicator for setup mode (configuration) In measuring mode: secondary measured value Indicator for "Hold"...

  • Page 31: Key Assignment

    Liquisys M CPM223/253 Operability 5.2.3 Key assignment CAL key When you press the CAL key, the device first prompts you for the calibration access code: • 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 32 Operability Liquisys M CPM223/253 AUTO key You can use the AUTO key to switch between automatic mode and manual mode. Escape function If you press the PLUS and MINUS key simultaneously, you return to the main menu or are taken to the end of calibration if calibrating. If you press the PLUS and MINUS key again, you return to the measuring mode.

  • Page 33: Local Operation

    Liquisys M CPM223/253 Operability Local Operation 5.3.1 Automatic/manual mode The transmitter normally operates in automatic mode. Here, the relays are triggered by the transmitter. In the manual mode, you can trigger the relays using the REL key or start the cleaning function.

  • Page 34: Operating Concept

    Operability Liquisys M CPM223/253 5.3.2 Operating concept Operating modes Measuring mode: standard mode of operation, displaying current measured values Calibration mode: Setup mode access to all execution of configuration calibration routine settings Code The function groups are selected with the PLUS or MINUS key.
  • Page 35 Liquisys M CPM223/253 Operability Menu structure The configuration and calibration functions are arranged in function groups. • In setup mode, select a function group with the PLUS and MINUS keys. • In the function group itself, switch from function to function with the ENTER key.

  • Page 36: Commissioning

    Commissioning Liquisys M CPM223/253 Commissioning Things to note when commissioning digital sensors pH sensors with Memosens functionality save the calibration data. For this reason, commissioning these sensors is different to commissioning standard electrodes. Proceed as follows: Install the transmitter and the assembly.

  • Page 37: Switching On

    Liquisys M CPM223/253 Commissioning Switching on Familiarize yourself with the operation of the transmitter before it is first switched on. Please refer in particular to the "Safety instructions" and "Operation" sections. After power-up, the device performs a self-test and then goes to the measuring mode.
  • Page 38 Commissioning Liquisys M CPM223/253 Factory settings The first time it is switched on, the device has the factory setting for all functions. The table below provides an overview of the most important settings. All other factory settings can be found in the description of the individual function groups in the "System configuration"...

  • Page 39: Quick Start-Up

    Liquisys M CPM223/253 Commissioning Quick start-up After power-up, you must make some settings to configure the most important functions of the transmitter which are required for correct measurement. The following section gives an example of this. User input Setting range...
  • Page 40 Commissioning Liquisys M CPM223/253 User input Setting range Display (Factory settings, bold) 14. Press to get to the "Setup 2" function group. 15. Press to make your settings for "Setup 2". SETUP 2 16. In B1, select the type of temperature compensation for the process, e.g.

  • Page 41: System Configuration

    Liquisys M CPM223/253 Commissioning System configuration 6.6.1 Setup 1 (pH / ORP) In the SETUP 1 function group, change the settings for the measuring mode and the sensor. All the settings in this menu are made during initial commissioning. However, you can change the settings at any time.
  • Page 42 Commissioning Liquisys M CPM223/253 Setup 1 for digital sensors Coding Field Setting range Display Info (Factory settings, bold) SETUP 1 function Configuration of basic functions group SETUP 1 Operating mode No edit option. Oper.Mode No edit option. asym Thanks to the non-contact, galvanically...

  • Page 43: Setup 2 (Temperature)

    Liquisys M CPM223/253 Commissioning 6.6.2 Setup 2 (temperature) Use this function group to change the settings for temperature measurement. You already made all the settings of this function group during initial commissioning. However, you can change the values chosen at any time.

  • Page 44: Current Input

    Commissioning Liquisys M CPM223/253 6.6.3 Current input With the "Current input" function group, you can monitor process parameters and use these for feedforward control. For this purpose, you must connect the current output of an external measured variable (e.g. flowmeter) to the 4 to 20 mA input of the transmitter. The following...
  • Page 45 Liquisys M CPM223/253 Commissioning Feedforward control to PID controller For control systems with very short reaction times, it can be useful to also apply the flow rate, if it is fluctuating, to the controller to optimize the control process. mg/l 0.42...
  • Page 46 Commissioning Liquisys M CPM223/253 Coding Field Setting range Display Info (Factory settings, bold) CURRENT INPUT Current input settings. function group CUR.INPUT Select flow Flow monitoring may only be switched on monitoring of main if the flowmeter is connected in the main stream (with stream.

  • Page 47: Current Outputs

    Liquisys M CPM223/253 Commissioning 6.6.4 Current outputs Use the "Current output" function group to configure the individual outputs. You can enter either a linear characteristic (O3 (1)) or a user-defined current output characteristic in conjunction with the Plus Package (O3 (3)). Exception: if you have chosen a "continuous controller"...
  • Page 48 Commissioning Liquisys M CPM223/253 First enter the desired current output configuration into the following blank table with a pencil. Calculate the resulting signal distance per mA to observe the necessary minimum slope. Then enter the values in the device. Current output 1...
  • Page 49 Liquisys M CPM223/253 Commissioning Coding Field Setting range Display Info (Factory settings, bold) CURRENT OUTPUT Configuration of the current output (does function group not apply for PROFIBUS). OUTPUT Out1 Out1 A characteristic can be selected for every Select current output Out 2 output.
  • Page 50 Commissioning Liquisys M CPM223/253 Coding Field Setting range Display Info (Factory settings, bold) Values can also be added or altered at a later stage. The values entered are Enter current output Lin = linear (1) table automatically sorted by increasing...

  • Page 51: Monitoring Functions

    Liquisys M CPM223/253 Commissioning 6.6.5 Monitoring functions You can use the monitoring functions to define various alarms and configure output contacts. Each individual error can defined to be effective or not (at the contact or as an error current). Moreover, the electrode can be checked for glass breakage or leak current (P1, P2, P7). In the event of an alarm, a cleaning function can also be activated (F8).
  • Page 52 Commissioning Liquisys M CPM223/253 Coding Field Setting range Display Info (Factory settings, bold) The option selected in F4 is effective or Set error current to ineffective in the event of an error. be effective for the This setting only applies to the error selected error selected in F5.
  • Page 53 Liquisys M CPM223/253 Commissioning Check The CHECK function group is only available for devices with a Plus Package. In the CHECK function group, you can select two different monitoring functions for the measurement: SCS electrode monitoring The Sensor Check System monitors the pH and reference electrode for incorrect measurement and complete failure.
  • Page 54 Commissioning Liquisys M CPM223/253 C07-CxM2x3xx-05-06-00-xx-001.eps Fig. 37: PCS alarm (live check) Constant measuring signal = alarm triggered after PCS alarm time has elapsed Pay attention to the following: • The electrode must be symmetrically connected (with PML) to monitor the reference.
  • Page 55 Liquisys M CPM223/253 Commissioning Coding Field Setting range Display Info (Factory settings, bold) Alarm possible with or without controller Select alarm High switch-off. threshold LoHi = low + high xxxx = without controller switch-off monitoring Low! A.Thresh xxxx! = with controller switch-off...

  • Page 56: Relay Contact Configuration

    Commissioning Liquisys M CPM223/253 SCS operating voltage for pH sensors with Memosens functionality If the connection between the pH sensor with Memosens functionality and cable is just connected but not locked, the supply voltage can drop below the required voltage value due to the poor coupling.
  • Page 57 Liquisys M CPM223/253 Commissioning C07-CxM2x3xx-05-06-00-xx-003.eps Fig. 38: Illustration of the alarm and limit value functions Switch-on point > switch-off point: Max. function Alarm threshold Switch-on point < switch-off point: Min. function Switch-on point Switch-off point Contact ON Alarm ON Alarm OFF...
  • Page 58 Commissioning Liquisys M CPM223/253 PID controlling plus basic load dosing If you select this function (PID + Basic) in field R231 the PID controlled dosage will not be lower than the basic load value entered in field R2311. 100 %...
  • Page 59 Liquisys M CPM223/253 Commissioning Actuating signal outputs (R237 to R2310) Each control contact outputs a cyclical signal whose intensity corresponds to the controller' s manipulated variable. A distinction is made according to the type of signal cycle: • Pulse length modulation The bigger the calculated manipulated variable is, the longer the contact affected remains picked up.
  • Page 60 Commissioning Liquisys M CPM223/253 Timer for cleaning function This function includes a simple cleaning option. You can set the time interval after which cleaning should start. So you can only select a constant interval sequence. Other cleaning functions are available for selection in conjunction with the Chemoclean function (version with four contacts, see "Chemoclean function"...
  • Page 61 Liquisys M CPM223/253 Commissioning a0006793 Fig. 43: Sequence of a cleaning cycle Hold Normal mode Water Cleaning start Cleaner Pre-rinse time Contact on Cleaning time Contact off Post rinse time Hold dwell period Neutralization controller During neutralization control, the pH value of a medium is kept constant by dosing acid and alkali.
  • Page 62 Commissioning Liquisys M CPM223/253 Coding Field Setting range Display Info (Factory settings, bold) RELAY function Relay contact settings. group RELAIS Rel3 (water) and Rel4 (cleaner) are only Rel1 available with the relevant version of the Rel1 Select contact to be Rel2 transmitter.
  • Page 63 Liquisys M CPM223/253 Commissioning Coding Field Setting range Display Info (Factory settings, bold) Display status for R217 Display only. R217 limit contactor LC State LC PV = limit contactor pH/ ORP (1) Configure limit By confirming with ENTER, another relay LC C = limit contactor T (2) LC °C...
  • Page 64 Commissioning Liquisys M CPM223/253 Coding Field Setting range Display Info (Factory settings, bold) LC PV = limit contactor pH/ ORP (1) By confirming with ENTER, another relay LC C = limit contactor T (2) Configure P(ID) function already switched on is switched...
  • Page 65 Liquisys M CPM223/253 Commissioning Coding Field Setting range Display Info (Factory settings, bold) This field only appears if pulse frequency Enter maximum 1/min 120 min is selected in R237. If pulse length is R239 pulse frequency of R239 60 to 180 min...
  • Page 66 Commissioning Liquisys M CPM223/253 Coding Field Setting range Display Info (Factory settings, bold) LC PV = limit contactor pH/ Configure cleaning ORP (1) See "Chemoclean function" section. with Chemoclean LC C = limit contactor T (2) By confirming with ENTER, another relay...
  • Page 67 Liquisys M CPM223/253 Commissioning Coding Field Setting range Display Info (Factory settings, bold) Enter number of After cleaning with cleaner, up to 9 cleaning cycles cleaning sessions can be carried out with R259 without cleaning R259 0 to 9 water only until the next cleaning session...
  • Page 68 Commissioning Liquisys M CPM223/253 Coding Field Setting range Display Info (Factory settings, bold) This field only appears if pulse frequency Enter maximum 1/min 120 min is selected in R266. R268 pulse frequency of R268 60 to 180 min If pulse length is selected, R268 is skipped the adjuster and entries continue with R269.

  • Page 69: Service

    Liquisys M CPM223/253 Commissioning 6.6.7 Service Coding Field Setting range Display Info (Factory settings, bold) SERVICE function Service function settings. group SERVICE ENG = English GER = German This field has to be configured once during FRA = French Select language device configuration.
  • Page 70 Commissioning Liquisys M CPM223/253 Coding Field Setting range Display Info (Factory settings, bold) Reset the device to Sens = last calibration is deleted and is the basic settings reset to factory setting. Sens = sensor data Facty = all data (apart from A1 a. S1) are...

  • Page 71: E+H Service

    Liquisys M CPM223/253 Commissioning 6.6.8 E+H Service Coding Field Setting range Display Note (Factory settings, bold) E+H SERVICE Information on the device version function group E+H SERV Contr = controller (1) Trans = transmitter (2) The "Sens = sensor" option is only...

  • Page 72: Interfaces

    Commissioning Liquisys M CPM223/253 6.6.9 Interfaces Coding Field Setting range Display Info (Factory settings, bold) INTERFACE Communication settings (only for device function group version HART or PROFIBUS). INTERFACE Each address may only be used once in a Address network. HART: 0 to 15 If a device address ...

  • Page 73: Calibration

    Liquisys M CPM223/253 Commissioning Calibration Use the CAL key to access the calibration function group. Use this function group to calibrate the sensor. The calibration can take place in a number of ways: • By measuring in two calibration solutions with known pH value.
  • Page 74 Commissioning Liquisys M CPM223/253 Coding Field Setting range Display Info (Factory settings, bold) Only for A1 = pH. CALIBRATION C (1) Calibration pH Calibration with two different buffer function group solutions. CALIBRAT °C 25.0 Enter calibration 25.0 °C Only for B1 = MTC.
  • Page 75 Liquisys M CPM223/253 Commissioning Coding Field Setting range Display Info (Factory settings, bold) Usual values Glass: pH 7.00 Zero point (zero pH 5.00 to 9.00 7.00 For ISFET, the zero point is displayed in point / U_is) is Antimony: pH 1.00 displayed pH -1.00 to 3.00...
  • Page 76 Commissioning Liquisys M CPM223/253 Coding Field Setting range Display Info (Factory settings, bold) If C24 = E xxx, then only No or New. Store calibration If New, return to C. result? If Yes/No, return to "Measurement". Store CALIBRATION function group:...
  • Page 77 Liquisys M CPM223/253 Commissioning Numeric calibration During numerical calibration, the slope and zero point can be corrected manually. Coding Field Setting range Display Info (Factory settings, bold) NUMERIC CALIBRATION function group NUMERIC 25°C Enter reference 25.0° C temperature -50.0 to 150.0° C T°C Ref...
  • Page 78 Commissioning Liquisys M CPM223/253 Offset The settings in the OFFSET function group can be used to calibrate the measurement to a reference measurement. This requires a linear shift of all the measured values, i.e. the adjustment is determined for one measured value, and all others are calculated using the same adjustment.

  • Page 79: Diagnostics And Troubleshooting

    Liquisys M CPM223/253 Diagnostics and troubleshooting Diagnostics and troubleshooting Troubleshooting instructions The transmitter constantly monitors its functions itself. If an error occurs which the device recognizes, this is indicated on the display. The error number is shown below the display of the main measured value.
  • Page 80 Diagnostics and troubleshooting Liquisys M CPM223/253 Error Display Tests and/or remedial measures Alarm contact Error current Autom. PROFIBUS cleaning start Status Facty User Facty User Facty User Temp Slope range exceeded or E032 — — below range Repeat calibration and renew buffer pH value zero too low or solution;...
  • Page 81 Liquisys M CPM223/253 Diagnostics and troubleshooting Error Display Tests and/or remedial measures Alarm contact Error current Autom. PROFIBUS cleaning start Status Facty User Facty User Facty User Temp Current output 1 range E080 — — too small Increase range in "Current outputs"...
  • Page 82 Diagnostics and troubleshooting Liquisys M CPM223/253 Error Display Tests and/or remedial measures Alarm contact Error current Autom. PROFIBUS cleaning start Status Facty User Facty User Facty User Temp Check process variables at sending Switch-off limit for E172 measuring instrument. Change range current input exceeded assignment if necessary.

  • Page 83: Process Specific Errors

    Impermissible device operating Switch device off and then on again. grounding, screens and line routing or status (no reaction to key actuation) have checked by Endress+Hauser Service. Wiring diagram "Electrical connection" Incorrect sensor connection Check connections using wiring diagram. section...
  • Page 84 Diagnostics and troubleshooting Liquisys M CPM223/253 Errors Possible cause Tests and/or remedial measures Tools, spare parts No/incorrect temperature ATC: activate function. compensation MTC: adjust process temperature. Conductivity of medium too low Select pH sensor with liquid KCl. e.g. Ceraliquid CPS41 Flow too high Reduce flow or measure in a bypass.
  • Page 85 Liquisys M CPM223/253 Diagnostics and troubleshooting Errors Possible cause Tests and/or remedial measures Tools, spare parts – For Plus Package retrofit: enter code Plus Package not enabled (enable by supplied by E+H. entering a code which depends on – Following replacement of a defective No functions from Plus For a detailed description, see "Replacing...

  • Page 86: Instrument Specific Errors

    Diagnostics and troubleshooting Liquisys M CPM223/253 Instrument specific errors The following table helps you during the diagnosis and points to any spare parts required. Depending on the degree of difficulty and the measuring equipment present, diagnosis is carried out by: •...
  • Page 87 Liquisys M CPM223/253 Diagnostics and troubleshooting Error Possible cause Tests and/or remedial measures Execution, tools, spare parts Only 2 additional relays Relay module LSR1-2 installed with Upgrade to LSR1-4 with 4 relays. User or Endress+Hauser Service can be triggered 2 relays...

  • Page 88: Maintenance

    Maintenance Liquisys M CPM223/253 Maintenance Take all the necessary measures in time to guarantee the operational safety and reliability of the entire measuring system. Maintenance work at the transmitter comprises: • Calibration (see "Calibration" section) • Cleaning of assembly and sensor •...

  • Page 89: Cleaning The Ph/Orp Sensors

    Liquisys M CPM223/253 Maintenance 8.1.2 Cleaning the pH/ORP sensors CAUTION The cleaning system is not switched off during calibration or maintenance activities Risk of injury due to medium or cleaning agent ‣ If a cleaning system is connected, switch it off before removing a sensor from the medium.

  • Page 90: Maintaining Digital Sensors

    Maintenance Liquisys M CPM223/253 Reduced reference system The inner metal lead of the reference system (Ag/AgCl) of a combination electrode or a separate reference electrode is usually light-brown and matt. A silver-colored reference sys- tem is reduced and therefore defective. The cause is a current flowing through the reference element.

  • Page 91: Connecting Lines And Junction Boxes

    Liquisys M CPM223/253 Maintenance 8.1.6 Connecting lines and junction boxes Check the cables and connections for moisture. Moisture is indicated by a sensor slope that is too small. If no more display is possible or if the display is fixed at pH 7, please check the following components: •...

  • Page 92: Repair

    Repair Liquisys M CPM223/253 Repair Spare parts Spare parts are to be ordered from your sales center responsible. Specify the order numbers listed in the chapter "Spare parts kits". To be on the safe side, you should always specify the following data with your spare part orders: •...
  • Page 93 Liquisys M CPM223/253 Repair 422a 422b 10/20 290/300 Pos. 10 Netzteil 100 – 230 VAC Pos. 30 / Steckbrücke Sicherung 230 V 115 V 100 V C07-CxM223xx-09-06-06-xx-001.eps Fig. 47: Exploded drawing of panel-mounted instrument The exploded drawing contains the components and spare parts of the panel-mounted instrument.
  • Page 94 Repair Liquisys M CPM223/253 Item Kit description Name Function/contents Order number Power unit LSGA 100 / 115 / 230 V AC 51500317 Power unit LSGD 24 V AC + DC 51500318 Jumper Part of power unit, item 10 Central module...

  • Page 95: Dismantling The Field Instrument

    Liquisys M CPM223/253 Repair Item Kit description Name Function/contents Order number Fuse Part of power unit, item 10 Choice of line voltage Position of jumper item 30 on power unit, item 10 depending on line voltage Dismantling the field instrument Please note the effects on the process if the device is taken out of service! Please refer to the diagram for the item numbers.
  • Page 96 Repair Liquisys M CPM223/253 Pos. 10 Netzteil 100 – 230 V AC Pos. 30 / Steckbrücke Sicherung 230 V 115 V 460b 100 V 450b 450a 310/320 460a 10/20 290/300 450c C07-CxM253xx-09-06-06-xx-001.eps Fig. 48: Field device exploded drawing The exploded drawing contains the components and spare parts of the field device. You can take the spare parts and the corresponding order number from the following section.
  • Page 97 Liquisys M CPM223/253 Repair Item Kit description Name Function/contents Order number Power unit LSGA 100 / 115 / 230 V AC 51500317 Power unit LSGD 24 V AC + DC 51500318 Jumper Part of power unit, item 10 Central module...

  • Page 98: Replacing The Central Module

    Repair Liquisys M CPM223/253 Item Kit description Name Function/contents Order number Fuse also accessible if electronics box installed Fuse Part of power unit, item 10 Choice of line voltage Position of jumper item 30 on power unit, item 10 depending on desired...

  • Page 99: Return

    The device must be returned if repairs or a factory calibration are required, or if the wrong device has been ordered or delivered. According to legal regulations, Endress+Hauser, as an ISO-certified company, is required to follow certain procedures when handling returned products that are in contact with medium.

  • Page 100: Accessories

    Accessories Liquisys M CPM223/253 Accessories 10.1 Sensors Orbisint CPS11/CPS11D • pH sensor for process applications • Optional SIL version for connection to SIL approved transmitters • With dirt-repellent PTFE diaphragm • Ordering per product structure (--> Online configurator, www.products.endress.com/ cps11 or www.products.endress.com/cps11d) •...
  • Page 101 Liquisys M CPM223/253 Accessories Memosens CPS31D • pH sensor with Memosens technology • Gel-filled reference system with ceramic diaphragm • Ordering acc. to product structure, www.products.endress.com/cps31d • Technical Information TI00030C/07/EN Tophit CPS471 • Sterilizable and autoclavable ISFET sensor • For food and pharmaceuticals, process technology, water treatment and biotechnology;...

  • Page 102: Connection Accessories

    Accessories Liquisys M CPM223/253 10.2 Connection accessories CPK9 measuring cable • For sensors with TOP68 plug-in head, for high-temperature and high-pressure applications, IP 68 • Ordering acc. to product structure, see Technical Information (TI00118C/07/EN) CPK1 measuring cable • For pH/ORP electrodes with GSA plug-in head •...

  • Page 103: Mounting Accessories

    Liquisys M CPM223/253 Accessories 10.3 Mounting accessories CYY101 weather protection cover for field devices, absolutely essential if operating the unit outdoors • Material: stainless steel 1.4031 (AISI 304) • Order No. CYY101-A 300 (11.8) 270 (10.6) mm (inch) a0019166 Fig. 49:...

  • Page 104: Software And Hardware Add-Ons

    Accessories Liquisys M CPM223/253 Post mounting kit • For mounting of field housing on horizontal or vertical pipes (Ø max. 60 mm (2.36")) • Material: stainless steel 1.4301 • order no. 50086842 90 / 3.54 Ø max. 60 / 2.36 70 / 2.76...

  • Page 105: Calibration Solutions

    Accessories 10.5 Calibration solutions High-quality buffer solutions of Endress+Hauser - CPY20 The secondary buffer solutions have been referenced to primary reference material of the PTB (German Federal Physico-technical Institute) and to standard reference material of NIST (National Institute of Standards and Technology) according to DIN 19266 by a DKD (German Calibration Service) accredited laboratory.

  • Page 106: Technical Data

    Technical data Liquisys M CPM223/253 Technical data 11.1 Input Measured variables pH (analog or digital sensors) Temperature Measuring range –2 to 16 ORP: –1500 to +1500 mV / 0 to 100 % Temperature: Pt 100 -50 to +150 °C (-58 to +302 °F) Pt 1000 (versions IS / PS) -50 to +150 °C (-58 to +302 °F)
  • Page 107 Liquisys M CPM223/253 Technical data Signal on alarm 2.4 or 22 mA maximum 500  Load Output range adjustable, min.  1 pH ORP: absolute: adjustable, min.  50 mV relative: fixed, 0 to 100 % adjustable,  10 to  100 % of upper range value...
  • Page 108 Technical data Liquisys M CPM223/253 Protocol specific data HART Manufacturer ID Device type code 0091 Transmitter specific revision 0001 HART specification DD files www.products.endress.com/hart 250  Load HART Device variables None (dynamic variables PV, SV, only) Features supported PROFIBUS PA...

  • Page 109: Power Supply

    Liquisys M CPM223/253 Technical data 11.3 Power supply Supply voltage Depending on ordered version: 100/115/230 V AC +10/-15 %, 48 to 62 Hz 24 V AC/DC +20/-15 % Fieldbus connection HART Supply voltage n/a, active current outputs Integrated reverse voltage protection...

  • Page 110: Performance Characteristics

    Technical data Liquisys M CPM223/253 11.4 Performance characteristics Reference temperature 25 °C (77 °F) Resolution 0.01 pH ORP: 1 mV/0.1 % Temperature: 0.1 °C Maximum Display measured error max. 0.5 % of measuring range ORP: max. 0.5 % of measuring range Temperature: max.

  • Page 111: Environment

    Liquisys M CPM223/253 Technical data 11.5 Environment Ambient temperature -10 to +55 °C (+14 to +131 °F) Storage temperature –25 to +65 °C (-13 to +149 °F) Electromagnetic Interference emission and interference immunity as per EN 61326-1:2006, EN 61326-2- compatibility...

  • Page 112: Appendix

    Appendix Liquisys M CPM223/253 Appendix Operating matrix Function group Entry of absolute value Current offset is Calibration status Store offset results OFFSET displayed is displayed current measured value ; no; new -2.00...16 pH 0.00 pH , -2.00...2.00 pH o.k. -1500...1500 mV 0 mV , -120...120 mV...
  • Page 113 Liquisys M CPM223/253 Appendix Zero point is displayed Calibration status Store calibration Glass 7.00 pH is displayed results 5.00...9.00 pH Antimon 1.00 pH o.k. ; no; new -1.00...3.00 pH ISFET current value –500...+500 mV Feedforward control = 1 0 … 100%...
  • Page 114 Appendix Liquisys M CPM223/253 Function group SCS alarm SCS alarm threshold Select process SCS alarm Leakage current is Alarm delay CHECK Measuring sensor Reference sensor monitoring displayed (if A2=sym) (ISFET sensors only) 50 k ; Low; High; 0 min (s) 1.5...50 kW...
  • Page 115 Liquisys M CPM223/253 Appendix Select process Set lower alarm Set upper alarm Set max. perm. period Set max. permi. period Set monitoring value threshold threshold monitoring of lower limit exceeded of upper limit exceeded ; AC; CC; AC CC pH 16.00 pH -2 ...
  • Page 116 Appendix Liquisys M CPM223/253 Endress+Hauser...

  • Page 117: Index

    Liquisys M CPM223/253 Index Access codes ........34 Declaration of conformity .
  • Page 118 Liquisys M CPM223/253 Limit ......... . 107 Performance characteristics.
  • Page 119 Liquisys M CPM223/253 Endress+Hauser...
  • Page 120 71212636 www.addresses.endress.com...

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