Endress+Hauser Liquisys M CPM 223 Operating Instructions Manual
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Endress+Hauser Liquisys M CPM 223 Operating Instructions Manual

Endress+Hauser Liquisys M CPM 223 Operating Instructions Manual

Transmitter for ph and orp
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BA 194C/07/en/05.99
No. 51500268
Software version 2.0 or later
Quality made by
Endress+Hauser
ISO 9001
Liquisys M
CPM 223 / 253
Transmitter for
pH and ORP
Operating Instructions
ENDRESS+HAUSER
LIQUISYS M
Endress Hauser
The Power of Know How
ENDRESS+HAUSER
LIQUISYS M

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  • Page 1 Liquisys M BA 194C/07/en/05.99 No. 51500268 Software version 2.0 or later CPM 223 / 253 Transmitter for pH and ORP Operating Instructions ENDRESS+HAUSER LIQUISYS M ENDRESS+HAUSER LIQUISYS M Quality made by Endress+Hauser Endress Hauser The Power of Know How ISO 9001...
  • Page 2 Need information on the instrument? Please read the following chapters: General information Safety You wish to install the instrument. The required steps are described in this chapter: Installation You wish to operate or reconfigure the instrument. The operating concept is explained in these chapters: Operation Instrument configuration Interfaces...

  • Page 3: Table Of Contents

    Corrective maintenance of Liquisys M CPM 223........

  • Page 4: General Information

    General information Liquisys M CPM 223 / 253 General information Symbols used Warning: Note: This symbol alerts to hazards which This symbol indicates important may cause serious injuries as well as items of information. damage to equipment if ignored. Ignoring this information may result in malfunction.

  • Page 5: Product Structure

    Liquisys M CPM 223 / 253 General information PM253E01.CHP Product structure You can identify the instrument version by the order code on the nameplate. ENDRESS+HAUSER ENDRESS+HAUSER LIQUISYS-M pH / Redox LIQUISYS-M pH / Redox order code / Best.Nr. order code / Best.Nr.

  • Page 6: Safety

    Safety Liquisys M CPM 223 / 253 Safety Intended application The CPM 223/253 transmitter is a field-tested • Chemical industry and reliable measuring transmitter used to • Pharmaceutical industry determine the pH or redox (ORP) value. • Foodstuffs industry • Drinking water processing The CPM 223/253 is particularly suitable for •...

  • Page 7: Monitoring And Safety Features

    Liquisys M CPM 223 / 253 Safety PM253E02.CHP Monitoring and safety features Safety features Monitoring features The transmitter is protected against external In the event of a system error or power failure, influences and damage by the following an alarm condition is signalled via a fault- design measures: signalling contact.

  • Page 8: Installation

    5) (see chapter 3.3) Measuring system The complete measuring system comprises: Optional: • The Liquisys M CPM 223 or CPM 253 • Extension cable transmitter • Junction box VBA or VBM • A pH or redox electrode with or without an integrated temperature sensor •...

  • Page 9: Dimensions

    Liquisys M CPM 223 / 253 Installation PM253E03.CHP Dimensions ENDRESS+HAUSER LIQUISYS GEHAEUS1.CDR REL1 ALARM REL2 REL1 REL2 Dimensions of Liquisys M FELD1.CDR Fig. 3.2 CPM 253 Inside of housing of Liquisys M CPM 253: 1 Removable electronics box 2 Partition plate 3 Terminal blocks FELD2.CDR...

  • Page 10: Mounting

    Installation Liquisys M CPM 223 / 253 EINBAU1.CDR Liquisys M CPM 223, EINBAU2.CDR Fig. 3.4 panel-mounted version Mounting 3.3.1 Field instrument Several mounting options are available for the Weather protection cover CYY 101 can be Liquisys M in the field instrument version: used for outdoor installation in conjunction with all mounting variants.
  • Page 11 Liquisys M CPM 223 / 253 Installation PM253E03.CHP Post mounting kit Universal mounting post CYY 102 Mounting kit for installation of field housing on Square tube for mounting of measuring horizontal or vertical pipes (max. ∅ 60 mm); transmitters; material: 1.4301 (SS 304);...
  • Page 12 Installation Liquisys M CPM 223 / 253 3.3.2 Mounting examples Pipe mounting of Liquisys MONT10.CDR Fig. 3.7 M field instrument Liquisys M field instrument left: Wall mounting right: Mounting with universal post and weather MONT2.CDR Fig. 3.8 protection cover Endress+Hauser...
  • Page 13 Liquisys M CPM 223 / 253 Installation PM253E03.CHP 3.3.3 Panel-mounted instrument The instrument is attached using the supplied tensioning screws (see Fig. 3.9). The required overall installation depth is approx. 165 mm. +0.5 Attachment of panel- mounted instrument max. 45 approx.

  • Page 14: Electrical Connection

    Installation Liquisys M CPM 223 / 253 Electrical connection Connection diagram The connection diagram depicted in Fig. 3.10 of the various electrodes with the measuring shows the connections of an instrument cables is shown in more detail in Figs. 3.13 equipped with all the options.
  • Page 15 Liquisys M CPM 223 / 253 Installation PM253E03.CHP Connections of field instrument For connection, the measuring cables are introduced through the cable glands on the field instrument and connected according to the diagrams in Figs. 3.10, 3.11 and 3.12. Connection compartment AN-PH01.CDR...

  • Page 16: Electrode Installation And Measuring Cable Connection

    Installation Liquisys M CPM 223 / 253 Electrode installation and measuring cable connection Measuring cable connection The pH and redox electrodes are connected Note: using special terminated and shielded multi-core cables. Connectors, cable ends and The measuring cables (see table) can be...
  • Page 17 Liquisys M CPM 223 / 253 Installation PM253E03.CHP Cable termination for panel-mounted instrument CPM 332 with screwed BNC connector 1. Cut off wire end sleeves of the coaxial cable. Inner screen (ref.) 2. Insert cable gland ( ) and washer ( ) on cable, remove inner insulation (13 mm), then screw clamping ring ( ) onto insulation.
  • Page 18 Installation Liquisys M CPM 223 / 253 Note: • • The instrument is pre-configured If the software setting for symmetrical measurement. “asymmetrical” is chosen for a Change the configuration in field symmetrical connection, this will A2 for asymmetrical measurement reduce the service life of the (see chapter 5.2.1).

  • Page 19: Operation

    Liquisys M CPM 223 / 253 Operation PM253E04.CHP Operation Operator interface Display of active Liquid crystal display contact and key for for display of measured relay switching in values and manual mode configuration data 7 0 5 R262 Setpoint LED indicator for alarm...

  • Page 20: Key Functions

    Operation Liquisys M CPM 223 / 253 Key functions CAL key REL key When the CAL key is pressed, the instrument The REL key is used in manual mode to prompts for the calibration access code (fixed switch between the relays and the manual setting: 22 for calibration or any other number start cleaning function.

  • Page 21: Auto / Manual Mode Of Operation

    Liquisys M CPM 223 / 253 Operation PM253E04.CHP Auto / manual mode of operation Auto mode Note: In this mode of operation, the relays are controlled by the transmitter. • Enable the manual mode by REL key entering access code “22”.

  • Page 22: Operating Concept

    Operation Liquisys M CPM 223 / 253 Operating concept Operating modes Measuring mode: Standard mode of operation, display of current measured values Calibration mode: Setup mode: Execution of Access to all calibration routine configuration settings Code Code input: Following input of...
  • Page 23 Liquisys M CPM 223 / 253 Operation PM253E04.CHP Menu structure The configuration and calibration functions Note: are arranged in a menu structure by function groups. • If a change is made but not confirmed by pressing the ENTER The function groups are selected in the setup key, the previous setting is mode with the PLUS and MINUS keys.

  • Page 24: Access Codes

    Operation Liquisys M CPM 223 / 253 Access codes All instrument access codes are fixed, i.e. they cannot be modified. Three access codes are distinguished (cf. Fig. 4.3): • Any code: Read mode access, i.e. all • Code 22: Access to configuration menus...

  • Page 25: Instrument Configuration

    Liquisys M CPM 223 / 253 Instrument configuration PM253E5A.CHP Instrument configuration Setup mode After power-up (connection to power), the instrument performs a self-test and then enters the measuring mode. SETUP 1 (A) see chpt. 5.2.1, p. 25 SETUP 2 (B) see chpt.
  • Page 26 Instrument configuration Liquisys M CPM 223 / 253 Current outputs 1 and 2* 4 ... 20 mA Current output 1: meas. value for pH 2 4 mA signal current Current output 1: meas. value for pH 12 20 mA signal current Current output 2: temperature 0.0 °C...

  • Page 27: Start-Up

    Liquisys M CPM 223 / 253 Instrument configuration PM253E5A.CHP Start-up After power-up (connection to power supply established), the user must make the following selections in the specified function groups: • Function group SERVICE (S) • Function group SETUP 2 (B) S1: Select language and exit function Adjust all the parameters in this group;...
  • Page 28 Instrument configuration Liquisys M CPM 223 / 253 5.2.2 Setup 2 Selection or range Coding Field Display Info Factory setting Function group Initial display in function group SETUP 2 SETUP 2. SETUP 2 Operation mode pH: If B1 = ATC, the display jumps Selection of type to B3.

  • Page 29: Current Outputs

    Liquisys M CPM 223 / 253 Instrument configuration PM253E5A.CHP Current outputs The function group CURRENT OUTPUT is Furthermore, a current output value can be used to configure the individual outputs. simulated to check the current outputs (O2 (2)). Either a linear (O2 (1)) or, in conjunction with the S version, a user-defined current output characteristic (O2 (3)) can be entered.
  • Page 30 Instrument configuration Liquisys M CPM 223 / 253 Selection or range Coding Field Display Info Factory setting 10.20 Enter simulation current value The current value entered here is O221 O221 value 0.00 ... 22.00 mA output through the current output.

  • Page 31: Monitoring Functions

    Liquisys M CPM 223 / 253 Instrument configuration PM253E5A.CHP Monitoring functions The monitoring functions are used to define measuring signal can be checked to various alarms and to set output contacts. ascertain that the electrode is working Each individual error can defined to be properly (it must supply plausible values).
  • Page 32 Instrument configuration Liquisys M CPM 223 / 253 Selection or range Coding Field Display Info Factory setting If set to “no”, all the other alarm settings (e.g. alarm delay) are Set alarm contact also deactivated. The settings to be effective for themselves are retained.
  • Page 33 Liquisys M CPM 223 / 253 Instrument configuration PM253E5A.CHP 5.4.2 Check Two different monitoring functions can be selected for the measurement in the function group CHECK: SCS electrode monitoring The Sensor Check System monitors the pH and reference electrodes for inaccurate measurement and total failure.
  • Page 34 Instrument configuration Liquisys M CPM 223 / 253 Selection or range Coding Field Display Info Factory setting Function group Settings for measuring electrode CHECK and process monitoring (S version only) CHECK The glass electrode is monitored for glass breakage. Switch SCS alarm (Error no.: E071.)

  • Page 35: Relay Contact Configuration

    Liquisys M CPM 223 / 253 Instrument configuration PM253E5B.CHP Relay contact configuration The relay contacts described below can be • Limit contactor for measured pH/redox value: R2 (1) selected and configured as required (up to • Limit contactor for temperature: R2 (2) four times with four contacts depending on •...
  • Page 36 Instrument configuration Liquisys M CPM 223 / 253 P controller: Used for simple linear control PD controller: Used for processes that purposes with small system deviations. Where require quick response and where peaks are major changes are to be controlled, to be corrected.
  • Page 37 Liquisys M CPM 223 / 253 Instrument configuration PM253E5B.CHP Checking and fine tuning of parameter settings using a recorder Actual Actual value value too large too small Time Time Actual Actual value value too small too large Time Time Actual...
  • Page 38 Instrument configuration Liquisys M CPM 223 / 253 Control characteristic for direct and inverted control action Field R236 offers two control characteristics for selection which have the effects shown in the following diagram. 100 % Direct 100 % Inverted Control characteristic of a...
  • Page 39 Liquisys M CPM 223 / 253 Instrument configuration PM253E5B.CHP 5.5.4 Chemoclean function Just like the timer function, Chemoclean can Thus, irregular cleaning with different repeat also be used to start a cleaning cycle. cycles is possible, and cleaning times with However, Chemoclean supports different post-rinse times can be individually defined.
  • Page 40 Instrument configuration Liquisys M CPM 223 / 253 Selection or range Coding Field Display Info Factory setting Function group Relay contacts can be selected RELAYS and adjusted. RELAY Rel1 Rel3 and Rel4 are only available Selection of Rel1 Rel2 on instrument equipped...
  • Page 41 Liquisys M CPM 223 / 253 Instrument configuration PM253E5B.CHP Selection or range Coding Field Display Info Factory setting Enter dropout R215 R215 delay 0 ... 2000 s Off Delay pH 16.00 When the alarm threshold is pH –2.00 ... 16.00...
  • Page 42 Instrument configuration Liquisys M CPM 223 / 253 Selection or range Coding Field Display Info Factory setting When the alarm threshold is Enter alarm violated, the measuring 150.0 °C 150.0 °C R226 R226 threshold (as an transmitter issues an alarm with –20.0 ...
  • Page 43 Liquisys M CPM 223 / 253 Instrument configuration PM253E5B.CHP Selection or range Coding Field Display Info Factory setting Pulse length e.g. for solenoid Selection of pulse len = pulse length valve, pulse frequency e.g. for R237 R237 length or pulse...
  • Page 44 Instrument configuration Liquisys M CPM 223 / 253 Selection or range Coding Field Display Info Factory setting The minimum pause time Enter minimum 120 min prevents continuous cleaning R244 R244 pause time 1 ... 3600 min when the cleaning trigger is Min.Pause...
  • Page 45 Liquisys M CPM 223 / 253 Instrument configuration PM253E5B.CHP Selection or range Coding Field Display Info Factory setting The pause time is the time 360 min R257 R257 Enter pause time between two cleaning cycles 1 ... 7200 min (see chpt. 5.5.3, p. 36).
  • Page 46 Instrument configuration Liquisys M CPM 223 / 253 Selection or range Coding Field Display Info Factory setting Enter derivative 0.0 min R265 R265 action time T 0.0 ... 999.9 min (0.0 = no D comp.) TV Rel1 Selection of pulse...

  • Page 47: Service

    Liquisys M CPM 223 / 253 Instrument configuration PM253E5B.CHP Service Selection or range Coding Field Display Info Factory setting Function group SERVICE SERVICE ENG = English GER = German This field must be configured Selection of FRA = French once during start-up. Then you...

  • Page 48: E+H Service

    Instrument configuration Liquisys M CPM 223 / 253 Selection or range Coding Field Display Info Factory setting SerNo Serial number is displayed 12345678 Reset of Facty = All data are erased and instrument reset to the factory (restore default settings!

  • Page 49: Interfaces

    Liquisys M CPM 223 / 253 Instrument configuration PM253E5B.CHP Interfaces Selection or range Coding Field Display Info Factory setting Function group INTERFACE INTERFACE Address HART: 0 ... 15 Enter address For communication only. Address PROFIBUS: 1 ... 126 Calibration Note: This function group is used to calibrate the transmitter.
  • Page 50 Instrument configuration Liquisys M CPM 223 / 253 Selection or range Coding Field Display Info Factory setting Function group CALIBRATION: C (1) calibration with pH calibration Only if A1 = pH. two different CALIBRAT buffer solutions °C 25.0 Enter calibration 25.0 °C...
  • Page 51 Liquisys M CPM 223 / 253 Instrument configuration PM253E5B.CHP Selection or range Coding Field Display Info Factory setting Glass: pH 7.00 7.00 pH 5.00 ... 9.00 Zero is displayed Antimony: pH 1.00 Zero pH –1.00 ... 3.00 o.k. Calibration status o.k.
  • Page 52 Instrument configuration Liquisys M CPM 223 / 253 Selection or range Coding Field Display Info Factory setting If C24 = E xxx, then only no or new. Store calibration If new, return to C. results? If yes/no, return to Store “Measurement”.

  • Page 53: Offset

    Liquisys M CPM 223 / 253 Instrument configuration PM253E5B.CHP 5.10 Offset The settings in the OFFSET function group can be used to calibrate the measurement to Calibrated value a reference measurement. This requires a linear shift of all values measured, i.e. the...

  • Page 54: Interfaces

    Interfaces Liquisys M CPM 223 / 253 Interfaces For instruments equipped with a communication interface, please refer to separate operating instructions ® BA 208C/07/en (HART ) or BA 209C/07/en (PROFIBUS) Endress+Hauser...

  • Page 55: Maintenance And Troubleshooting

    Liquisys M CPM 223 / 253 Maintenance and troubleshooting PM253E07.CHP Maintenance and troubleshooting Definition of terms Maintenance means that all measures which Troubleshooting means that the cause of the will guarantee the safety of operation and problem is determined and eliminated.
  • Page 56 Maintenance and troubleshooting Liquisys M CPM 223 / 253 Problem Possible cause Remedy Equipment needed, spare parts – Incorrect sensor connection Verify connections using Connection diagram in chpt. 3.4 connection diagram Incorrect temperature – Measuring cable defective Check cable Ohmmeter value –...
  • Page 57 Liquisys M CPM 223 / 253 Maintenance and troubleshooting PM253E07.CHP Problem Possible cause Remedy Equipment needed, spare parts – S package upgrade: code received from E+H ⇒ enter – S package not enabled (enable – Following replacement of Detailed description see chpt. 8.5.5...

  • Page 58: Problem Elimination Based On Error Messages

    Maintenance and troubleshooting Liquisys M CPM 223 / 253 Problem elimination based on error messages Autom. start of Contact Error current Error cleaning Display Measures Fact. User Fact. User Fact. User E001 Switch instrument off and back on, return —...
  • Page 59 Liquisys M CPM 223 / 253 Maintenance and troubleshooting PM253E07.CHP Autom. start of Contact Error current Error cleaning Display Measures Fact. User Fact. User Fact. User Below main parameter Check measurement and connections; E055 measuring range check instrument and measuring cable with simulator if necessary.

  • Page 60: Diagnosis And Corrective Maintenance

    Diagnosis and corrective maintenance Liquisys M CPM 223 / 253 Diagnosis and corrective maintenance Definition of terms Diagnosis refers to the identification of Diagnosis based on the error table below and instrument malfunctions and defects. depending on difficulty and measuring...
  • Page 61 Liquisys M CPM 223 / 253 Diagnosis and corrective maintenance PM253E08.CHP Problem Possible cause Tests and / or remedial measures Equipment, spare parts, personnel Display shows – Instrument, or module not CPM 223: Reinstall module Refer to assembly drawings in...

  • Page 62: Corrective Maintenance Of Liquisys M Cpm 223

    Diagnosis and corrective maintenance Liquisys M CPM 223 / 253 Corrective maintenance of Liquisys M CPM 223 8.4.1 Exploded view 223EXPHE.CDR Item 422a Terminal for signal inputs/outputs (external) Item 422b Item 340 Terminal for Pt 100, End frame alarm relay, supply (internal)
  • Page 63 Liquisys M CPM 223 / 253 Diagnosis and corrective maintenance PM253E08.CHP 8.4.2 Dismantling of CPM 223 • Consider potential effects on process • Remove the complete electronics block when removing the instrument from service! from the housing. The modules are •...

  • Page 64: Corrective Maintenance Of Liquisys M Cpm 253

    Diagnosis and corrective maintenance Liquisys M CPM 223 / 253 Corrective maintenance of Liquisys M CPM 253 8.5.1 Exploded view 253EXPHE.CDR Electronics box with Fuse is accessible with relay module LSR1-x (bottom) and electronics box installed power supply unit LSGA/LSGD (top) Item 10 Power supply unit 100 –...
  • Page 65 Liquisys M CPM 223 / 253 Diagnosis and corrective maintenance PM253E08.CHP 8.5.2 Dismantling of CPM 253 • Open and remove the connection Make sure that the module catches do not compartment cover (item 420). come unlatched! • Pull off the power connection terminal strip Bend the module latches outward and (item 470) to de-energize the instrument.

  • Page 66: Spare Parts Orders

    Diagnosis and corrective maintenance Liquisys M CPM 223 / 253 8.5.5 Special case: replacement of central module Note: • Assemble the instrument with the new module as described in chapter 8.4.3 or 8.5.3. Replacement central module LSCx-x • Start up the instrument and test its basic is supplied from the factory with functions (e.g.

  • Page 67: Corrective Maintenance Of Measuring System

    Liquisys M CPM 223 / 253 Diagnosis and corrective maintenance PM253E08.CHP Corrective maintenance of measuring system 8.8.1 pH/mV electrodes Soiling detected on glass electrodes can • Coatings containing protein (food industry) be removed as follows: Use mixture of hydrochloric acid (0.5 %) and pepsin (1 %), then rinse thoroughly.

  • Page 68: Accessories

    Accessories Liquisys M CPM 223 / 253 Accessories approx. right: Dimensions of junction box VBM left: Dimensions of junction VBA.CDR Fig. 9.1 box VBA VBM.CDR Connection accessories Note: • Junction box VBM Junction box for extension of cable connection between electrode and The desiccant bag in the junction instrument.
  • Page 69 Liquisys M CPM 223 / 253 Accessories PM253E09.CHP Electrodes Type Features Areas of application General process engineering Universal application, easily cleanable and Industrial waste water OrbiSint W soiling-resistant thanks to PTFE diaphragm, CPS 11/12/13 pressures of up to 6 bar, conductivity > 50 µS/cm...

  • Page 70: Technical Data

    °C Technical data Liquisys M CPM 223 / 253 Ω Technical data General specifications Manufacturer Endress+Hauser Product designation Liquisys M CPM 223 Liquisys M CPM 253 Input Measured variables pH, ORP, temperature Minimum distance for 0 / 4 ... 20 mA signal...
  • Page 71 Liquisys M CPM 223 / 253 Technical data °C Ω PM253E10.CHP Output (continued) Redox signal output Current range 0 / 4 ... 20 mA, galvanically separated Max. resolution 700 digits / mA max. 500 Ω Load absolute: adjustable, min. ∆ 50 mV Output range relative: fixed, 0 ...
  • Page 72 °C Technical data Liquisys M CPM 223 / 253 Ω Accuracy pH measurement Reference temperature +25 °C Measured value resolution 0.01 pH Display deviation max. 0.5 % of measuring range Repeatability max. 0.2 % of measuring range Measurement deviation , pH signal output max.

  • Page 73: Appendix

    Liquisys M CPM 223 / 253 Appendix PM253E11.CHP Appendix Edit mode: Edit mode: code 22 code 22 Read mode: Read mode: any code any code Endress+Hauser...
  • Page 74 Appendix Liquisys M CPM 223 / 253 Endress+Hauser...
  • Page 75 Liquisys M CPM 223 / 253 Appendix PM253E11.CHP Endress+Hauser...
  • Page 76 Appendix Liquisys M CPM 223 / 253 Endress+Hauser...

  • Page 77: Index

    Liquisys M CPM 223 / 253 Index PM253E12.CHP Index A ........25 Damage.
  • Page 78 Index Liquisys M CPM 223 / 253 I ........47 P.
  • Page 79 Liquisys M CPM 223 / 253 Index PM253E12.CHP Serial number......46 Service ......58 Technical data.
  • Page 80 Tel. ++6 75 (3) 25 11 88, Fax (3) 25 95 56 Austria Fax (11) 5 0 31 30 67 Endress+Hauser Ges.m.b.H. Poland Philippines Wien Endress+Hauser Polska Sp. z o.o. Canada Brenton Industries Inc. Tel. ++43 (1) 8 80 56-0, Fax (1) 8 80 56-35 Warszawy Endress+Hauser Ltd. Makati Metro Manila Tel.

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