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

Transmitter for dissolved oxygen
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BA 199C/07/en/07.02
No. 51500272
Software version 2.40 or higher
Quality made by
Endress+Hauser
ISO 9001
Liquisys M
COM 223 / 253
Transmitter for
Dissolved Oxygen
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 199C/07/en/07.02 No. 51500272 Software version 2.40 or higher COM 223 / 253 Transmitter for Dissolved Oxygen 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 You want to find out about the device. Just look here: General information Safety You wish to install the device. The required steps are described in this chapter: Installation You wish to operate or reconfigure the device. The operating concept is explained in these chapters: Operation Setting the device configuration Interfaces...

  • Page 3: Table Of Contents

    Corrective maintenance of Liquisys M COM 223 ....... . .

  • Page 4: General Information

    General information Liquisys M COM 223 / 253 General information Symbols used Warning: Double insulation This symbol alerts to hazards which Equipment protected by double could cause serious injuries as well insulation. as damage to the equipment if ignored. Alarm relay...

  • Page 5: Product Overview

    Liquisys M COM 223 / 253 General information OM253D01.CHP Product overview You can recognise the device version from the order code or the nameplate. Sub “codes” are the release codes for Software upgrade shown for ChemoClean (left of diagonal line) or Plus packet (right of diagonal line).

  • Page 6: Safety Instructions

    Safety instructions Liquisys M COM 223 / 253 Safety instructions Intended application The COM 223/253 transmitter is a field-tested • Sewage treatment plants and reliable measuring transmitter used to • Sewage treatment determine the oxygen concentration of liquid • Drinking water media.

  • Page 7: Monitoring And Safety Features

    Liquisys M COM 223 / 253 Safety instructions OM253D02.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

    Measuring system The complete measuring system comprises: Variant 1 Variant 2 • The transmitter Liquisys M COM 223 or • The transmitter Liquisys M COM 223 or COM 253 in DX or DS version COM 253 in WX or WS version •...

  • Page 9: Dimensions

    Liquisys M COM 223 / 253 Installation OM253D03.CHP Dimensions ENDRESS+HAUSER LIQUISYS GEHAEUS1.CDR REL1 ALARM REL2 REL1 REL2 SXB only -WX/-WS Dimensions of Liquisys M FELD1.CDR Fig. 3.3 COM 253 Note: There is a hole in the punching for Pg 16 cable entry. It serves as a pressure balance during air freight dispatching.

  • Page 10: Mounting

    Installation Liquisys M COM 223 / 253 EINBAU1.CDR Liquisys M COM 223, EINBAU2.CDR Fig. 3.4 mounting version Mounting 3.3.1 Field instrument Several mounting options are available for the Weather protection cover CYY 101 can be Liquisys in the field instrument version: used for outdoor installation in conjunction with all mounting variants.
  • Page 11 Liquisys M COM 223 / 253 Installation OM253D03.CHP Post mounting kit Universal mounting post CYY 102 Installation kit for installing the field housing Square pipe for installation of transmitters; on horizontal and vertical posts Material: Stainless steel 1.4301 (AISI 304);...
  • Page 12 Installation Liquisys M COM 223 / 253 3.3.2 Mounting examples Liquisys, field instrument: MONT10.CDR Fig. 3.7 Pipe mounting Liquisys, 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 COM 223 / 253 Installation OM253D03.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 Fixing the installation instrument max. 45 1 Front of the ca.

  • Page 14: Electrical Connection

    Installation Liquisys M COM 223 / 253 Electrical connection Connection diagram COM 223 / 253 in DX or DS version The connection diagram depicted in Fig. 3.10 shows the connections when using an oxygen sensor of type COS 4, COS 4HD or COS 41.
  • Page 15 Liquisys M COM 223 / 253 Installation OM253D03.CHP Connection diagram COM 223 / 253 in WX or WS version The connection diagram in Fig. 3.11 shows the connections when using an oxygen sensor of type COS 3, COS 3 S, COS 3HD, COS 31 or COS 71.
  • Page 16 Installation Liquisys M COM 223 / 253 Instrument connections for field instrument COM 253 in DX or DS version 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, and 3.12.
  • Page 17 Liquisys M COM 223 / 253 Installation OM253D03.CHP Instrument connections for field instrument COM 253 in WX or WS version For connection, the measuring cables are introduced through the cable glands on the field instrument and connected according to the diagrams in Figs. 3.11, and 3.14. The sensor is plugged in from the outside (7-pin socket SXB).

  • Page 18: Sensor Installation And Measuring Cable Connection

    Installation Liquisys M COM 223 / 253 Sensor installation and measuring cable connection Measuring cable connection The terminal block is located in a separate Note: connection compartment which is accessible by opening the plastic cover. Remove the pre- • Protect connectors, cable ends pressed knock-outs for cable entry.

  • Page 19: Operation

    Liquisys M COM 223 / 253 Operation OM253FE4.CHP Operation Operator interface Display of active LCD to display contact and key for measured values relay switchover and configurations in manual mode data mg/l 1 8 5 R232 Setpoint Display LED for...

  • Page 20: Key Functions

    Operation Liquisys M COM 223 / 253 Key functions CAL key When the CAL key is pressed, the instrument prompts for the calibration access code: Code 22 for calibration Code 0 or any code for calibration data checking. Press the CAL key to acknowledge the calibration data or to proceed within the calibration menu.

  • Page 21: Auto / Manual Mode Of Operation

    Liquisys M COM 223 / 253 Operation OM253FE4.CHP Auto / manual mode of operation Auto mode In this mode, the relays are controlled by the transmitter. REL key In manual mode, the REL key is used to select one of the relays or the cleaning function present in the instrument.

  • Page 22: Operating Concept

    Operation Liquisys M COM 223 / 253 Operating concept 4.5.1 Operating modes Measurement mode: Standard operating status, display of current measured values Setup mode: Calibration mode: Access to all Runs through the configuration calibration procedure settings Code Press the PLUS or MINUS key to select the function group.
  • Page 23 Liquisys M COM 223 / 253 Operation OM253FE4.CHP 4.5.2 Access codes All instrument access codes are fixed, i.e. they cannot be modified. When the instrument requests the access codes, it recognises the difference between codes (cf. Fig. 5.3): • CAL key + Code 22: Access to Calibration •...
  • Page 24 Operation Liquisys M COM 223 / 253 Hold function: “freezes” the outputs 4.5.4 The current output is “frozen” in the setup mode and during calibration, i.e. the last current value is constantly output. HOLD appears on the display. In case of steady control (4... 20 mA) on current output 2, it is set to 0/4 mA during Hold.

  • Page 25: Instrument Configuration

    Liquisys M COM 223 / 253 Instrument configuration OM253D5A.CHP Instrument configuration After power-up, the instrument performs a Setup mode self-test and then enters the measuring mode. SETUP 1 (A) see Chap. 5.2.1 Now it can be configured and calibrated for SETUP 2 (B) see Chap.
  • Page 26 Instrument configuration Liquisys M COM 223 / 253 Factory settings When the instrument is switched on for the first time, the factory settings are in effect. The following table provides an overview of all major settings. Please refer to the description of the individual functions in chapter 5 for all other factory settings (the factory settings are printed in bold).

  • Page 27: Start-Up

    Liquisys M COM 223 / 253 Instrument configuration OM253D5A.CHP Start-up After switching the instruement on, make the following settings to 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 COM 223 / 253 Selection or range Coding Field Display Info Factory setting (bold) Only available if the pressure Enter altitude compensation in A2 is switched 0 ... 4000 m off or not available. Altitude Measured value damping causes...

  • Page 29: Current Input

    This function group offers two independent application solutions, provided that the current output of an external measured quantity, e.g. flow meter, is connected to the 4 … 20 mA input of Liquisys M COM 223 / 253. The following assignments then apply: Flow in...
  • Page 30 Instrument configuration Liquisys M COM 223 / 253 5.3.2 Feedforward control to PID controller In processes with very short response times it may be practical to apply the flow rate to the controller, if the flow rate fluctuates, in order to optimise the control process.
  • Page 31 Liquisys M COM 223 / 253 Instrument configuration OM253D5A.CHP Selection or range Coding Field Display Info Factory setting (bold) Initial display in Function group function group CURRENT INPUT CUR.INPUT CURRENT INPUT. Select flow rate Only switch on when flow meter monitoring of main is connected in main stream.

  • Page 32: Current Outputs

    Instrument configuration Liquisys M COM 223 / 253 Current outputs The function group CURRENT OUTPUT is used to configure the individual outputs. Either a linear (O3 (1)) or, in conjunction with the Plus package (DS or WS version) a user-defined current output characteristic can be entered (O3 (3)).
  • Page 33 Liquisys M COM 223 / 253 Instrument configuration OM253D5A.CHP Selection or range Coding Field Display Info Factory setting (bold) Function group Initial display in function group CURRENT CURRENT OUTPUT. OUTPUT OUTPUT Output 2 with appropriate version. Out1 Select current Out1...
  • Page 34 Instrument configuration Liquisys M COM 223 / 253 Selection or range Coding Field Display Info Factory setting (bold) Version DX/DS: 10.00 mg/l 0.00 ... 20.00 mg/l Enter the O or temperature 100.0 %SAT value here of the max. current 0.0 ... 200.0 %SAT...
  • Page 35 Liquisys M COM 223 / 253 Instrument configuration OM253D5A.CHP Selection or range Coding Field Display Info Factory setting (bold) The function chain O333 ... O335 is run through the appropriate Select table value number of times according to the 1 ... Number of table...

  • Page 36: Monitoring Functions

    Instrument configuration Liquisys M COM 223 / 253 Monitoring functions The monitoring functions are used to define various alarms and to set output contacts. Each individual error can be defined to be effective or not (at the contact or as an error current). An alarm condition can be defined to activate a cleaning function (F8).
  • Page 37 Liquisys M COM 223 / 253 Instrument configuration OM253D5A.CHP Selection or range Coding Field Display Info Factory setting (bold) The error current selected in F4 becomes effective or is Set error current suppressed in case of error. to be effective for...
  • Page 38 Instrument configuration Liquisys M COM 223 / 253 The SCS monitoring functions at a glance Functional description Setting possibility Alarm event Application – lower AT reached or freely adjustable lower only lower AT dropped below alarm threshold (AT) Applications with or...
  • Page 39 Liquisys M COM 223 / 253 Instrument configuration OM253D5A.CHP Selection or range Coding Field Display Info Factory setting (bold) Function group Settings for sensor and process monitoring . CHECK CHECK Select alarm High threshold Lo+Hi = low and high monitoring Low! A.Thresh...
  • Page 40 Instrument configuration Liquisys M COM 223 / 253 Selection or range Coding Field Display Info Factory setting (bold) Version DX/DS: 20.00 mg/l 1.00 ... 20.00 mg/l 200.0 %SAT 0.0 ... 200.0 %Sat 400 hPa 20 ... 400 hPa WX/WS with COS 3 / 3S / 3HD / 31: 20.00 mg/l...

  • Page 41: Relay Contact Configuration

    Liquisys M COM 223 / 253 Instrument configuration OM253D5B.CHP Relay contact configuration The function group RELAYS is only accessible for instruments equipped with the Plus packet. The relay contacts described below can be selected and configured as required (max. four contacts depending on options installed): •...
  • Page 42 Instrument configuration Liquisys M COM 223 / 253 5.5.2 P(ID) controller The Liquisys M supports the definition of various controller functions. On the basis of the PID controller, P, PI, PD and PID controllers can be implemented. To obtain the best control response, use the controller best suited to the application in question.
  • Page 43 Liquisys M COM 223 / 253 Instrument configuration OM253D5B.CHP Actual Actual value value too big too small Time Time Actual Actual value value too big too small Time Time Actual value Optimal setting Time Setting optimisation and K REGEL02.CDR Fig. 5.10 Actuating signal outputs (R237 ...
  • Page 44 Instrument configuration Liquisys M COM 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 = max function X = setpoint –X...
  • Page 45 Liquisys M COM 223 / 253 Instrument configuration OM253D5B.CHP 5.5.4 ChemoClean function Just like the timer function, ChemoClean can Note: also be used to start a cleaning cycle. By comparison, the function scope is extended • Use relays 3 (water) and...
  • Page 46 Instrument configuration Liquisys M COM 223 / 253 Selection or range Coding Field Display Info Factory setting (bold) Settings made for the limit Switch function of R231 R211 contactor are not deleted by R2 (1) off or on switching the function off.
  • Page 47 Liquisys M COM 223 / 253 Instrument configuration OM253D5B.CHP Selection or range Coding Field Display Info Factory setting (bold) Version DX/DS: 20.00 mg/l 0.00 ... 20.00 mg/l 200.0 %Sat 0.0 ... 200.0 %Sat 400 hPa 0...400 hPa If the alarm threshold is...
  • Page 48 Instrument configuration Liquisys M COM 223 / 253 Selection or range Coding Field Display Info Factory setting (bold) R224 Enter pick-up delay R224 0 ... 2000 s On Delay Enter dropout R225 R225 delay 0 ... 2000 s Off Delay...
  • Page 49 Liquisys M COM 223 / 253 Instrument configuration OM253D5B.CHP Selection or range Coding Field Display Info Factory setting (bold) 1.00 Enter control gain 1.00 R233 R233 See Chap. 5.5.2. 0.01 ... 20.00 See Chap. 5.5.2. Enter integral Each hold sets the I component action time T 0.0 min...
  • Page 50 Instrument configuration Liquisys M COM 223 / 253 Selection or range Coding Field Display Info Factory setting (bold) LC PV = Limit Confirmation with ENTER contactor O switches off a different, already LC °C = Limit Configure switched-on relay function and its...
  • Page 51 Liquisys M COM 223 / 253 Instrument configuration OM253D5B.CHP Selection or range Coding Field Display Info Factory setting (bold) Enter pre-rinse 20 s R253 R253 Water is used for rinsing. time 0 ... 999 s PreRinse Enter cleaning Cleaning agent and water are...

  • Page 52: Service

    Instrument configuration Liquisys M COM 223 / 253 Service Selection or range Coding Field Display Info Factory setting Function group SERVICE SERVICE ENG = English This field must be configured GER = German Selection of once during start-up. Afterwards, FRA = French...
  • Page 53 Liquisys M COM 223 / 253 Instrument configuration OM253D5B.CHP Selection or range Coding Field Display Info Factory setting SerNo Serial number is displayed 12345678 Facty= All data (excluding fields Device reset A1 and S1) will be deleted (Reset to basic...

  • Page 54: E+H Service

    Instrument configuration Liquisys M COM 223 / 253 E+H Service Selection or range Coding Field Display Info Factory setting Function group E+H SERVICE E+H SERV Contr Central module (1) Contr Sens only with version WX or WS Trans = Transmitter (2) Select module and sensor COS 31 or COS 71.

  • Page 55: Interfaces

    Liquisys M COM 223 / 253 Instrument configuration OM253D5B.CHP Interfaces Selection or range Coding Field Display Info Factory setting See additional Operating Function group Instructions ® 208C/07/en (Hart INTERFACE INTERFACE ® 209C/07/en (PROFIBUS Address HART: 0 ... 15 Enter address Only for communication.

  • Page 56: Calibration

    Instrument configuration Liquisys M COM 223 / 253 Calibration This function group is used to calibrate the transmitter. The sensor is calibrated in air or in the medium. Note: • • If the calibration procedure is abor- After calibration, the system ted by pressing the PLUS and returns to Measuring mode.
  • Page 57 Liquisys M COM 223 / 253 Instrument configuration OM253D5B.CHP Selection or range Coding Field Display Info Factory setting (bold) If C112 = E xxx, then only no or new. Save calibration C113 C113 If new, return to C. result? If yes/no, return to Store “Measurement”.
  • Page 58 Instrument configuration Liquisys M COM 223 / 253 Selection or range Coding Field Display Info Factory setting (bold) Minimum value is 0.2 mg/l. 10.00 mg/l Enter calibration During measurement and C121 C131 Current value value calibration value entry, the Real PV value indicated should remain stable.

  • Page 59: Interfaces

    Liquisys M COM 223 / 253 Interfaces OM253D06.CHP Interfaces For instruments with a communication interface, please refer to the separate Operating ® ® Instructions BA 208C/07/en (HART ) or BA 209C/07/en (PROFIBUS Endress+Hauser...

  • Page 60: Maintenance And Troubleshooting

    Maintenance and troubleshooting Liquisys M COM 223 / 253 Maintenance and troubleshooting Maintenance: • Maintenance means that all measures which will guarantee the safety of operation and reliability of the entire measuring system are taken in due time. Maintenance of COM 223 / 253 includes: •...
  • Page 61 Liquisys M COM 223 / 253 Maintenance and troubleshooting OM253D07.CHP Problem Possible cause Remedy Equipment needed, spare parts – Membrane soiled Clean sensor membrane See instructions for COS xx. Heavily soiled media: use spray cleaning. – Incorrect temperature Check temperature value Ref.
  • Page 62 Maintenance and troubleshooting Liquisys M COM 223 / 253 Problem Possible cause Remedy Equipment needed, spare parts – Controller in “Manual / On” mode Set controller to “Manual/Off” or “Auto” Keyboard, REL and AUTO keys – Dropout delay setting too long...
  • Page 63 Liquisys M COM 223 / 253 Maintenance and troubleshooting OM253D07.CHP Problem Possible cause Remedy Equipment needed, spare parts – No central PA/DP module Verify by looking at nameplate: Upgrade to LSCP module ® PROFIBUS PA = -xxx3xx ® PROFIBUS DP= xxx4xx –...

  • Page 64: Troubleshooting Using The Error Messages

    Maintenance and troubleshooting Liquisys M COM 223 / 253 Troubleshooting using the error messages Display and select the error messages using the MINUS key. Automatic Contact Error current Error cleaning trigger Display Measures Fact. User Fact. User Fact. User EEPROM memory error Switch instrument off and back on, return —...
  • Page 65 Liquisys M COM 223 / 253 Maintenance and troubleshooting OM253D07.CHP Automatic Contact Error current Error cleaning trigger Display Measures Fact. User Fact. User Fact. User Alarm threshold limit Limit or reference value exceeded or E067 contactor 1 exceeded undershot. Alarm threshold limit...
  • Page 66 Maintenance and troubleshooting Liquisys M COM 223 / 253 Automatic Contact Error current Error cleaning trigger Display Measures Fact. User Fact. User Fact. User Flow in main stream loo Restore flow. E171 low or zero Switch-off limit for current Check process variables at sending...

  • Page 67: Diagnostics And Corrective Maintenance

    Liquisys M COM 223 / 253 Diagnostics and corrective maintenance OM253D08.CHP Diagnostics and corrective maintenance Diagnosis Diagnosis refers to the identification of instrument malfunctions and defects. Corrective maintenance: • replacement of parts diagnosed to be defective; • testing of instrument and measuring system function;...
  • Page 68 Diagnostics and corrective maintenance Liquisys M COM 223 / 253 Problem Possible cause Tests and / or remedial measures Equipment, spare parts, personnel Display dark, but LED(s) Central module defective Replace central module On-site diagnosis by E+H Service active (Module: LSCH/LSCP)
  • Page 69 Liquisys M COM 223 / 253 Diagnostics and corrective maintenance OM253D08.CHP Problem Possible cause Tests and / or remedial measures Equipment, spare parts, personnel Additional functions – Replacement modules LSCH or For LSCH / LSCP with SNR 0000 For detailed description, see...

  • Page 70: Corrective Maintenance Of Liquisys M Com 223

    Diagnostics and corrective maintenance Liquisys M COM 223 / 253 Corrective maintenance of Liquisys M COM 223 8.2.1 Exploded view Pos. 424a Connection terminal for signal inputs/outputs (exterior) Pos. 340 End frame Pos. 424b Pos. 400 Connection terminal for Pt 100,...
  • Page 71 Liquisys M COM 223 / 253 Diagnostics and corrective maintenance OM253D08.CHP 8.2.2 Dismantling of COM 223 • Consider potential effects on process when removing the instrument from service! • Before opening, make sure the instrument is voltage-free. • First pull off the terminal block (Pos. 424b) on the rear of the instrument to de-energize the instrument.
  • Page 72 Diagnostics and corrective maintenance Liquisys M COM 223 / 253 8.2.4 Spare parts for COM 223 Pos. Designation Name Function or components Order number Power supply unit LSGA 100/115/230 V AC 51500317 Power supply unit LSGD 24 V AC + DC...

  • Page 73: Corrective Maintenance Of Liquisys M Com 223

    Liquisys M COM 223 / 253 Diagnostics and corrective maintenance OM253D08.CHP Corrective maintenance of Liquisys M COM 223 8.3.1 Exploded view Electronics box with Fuse is accessible with relay module LSR1-x (below) electronics box installed and power unit LSGA/LSGD Pos. 10...
  • Page 74 Diagnostics and corrective maintenance Liquisys M COM 223 / 253 8.3.2 Dismantling of COM 253 • Before opening, make sure the instrument is voltage-free. • Open and remove the connection compart- ment cover (Pos. 420). • Pull off the power connection terminal strip (Pos.
  • Page 75 Liquisys M COM 223 / 253 Diagnostics and corrective maintenance OM253D08.CHP 8.3.4 Spare parts kits for COM 253 Pos. Designation Name Function or components Order number Power supply unit LSGA 100/115/230 V AC 51500317 Power supply unit LSGD 24 V AC + DC...

  • Page 76: Spare Parts Orders

    Diagnostics and corrective maintenance Liquisys M COM 223 / 253 8.3.5 Special case: replacement of central module • Start up the instrument and test its basic Note: functions (e.g. meas. value and temperature display, operation via Since the serial and release keyboard).

  • Page 77: Corrective Maintenance On The Complete Measuring Point Com 2X3-Dx/-Ds

    Liquisys M COM 223 / 253 Diagnostics and corrective maintenance OM253D08.CHP Corrective maintenance on the complete measuring point COM 2x3-DX/-DS 8.6.1 Oxygen transmitter DX/DS Cleaning the front panel To clean the front panel, only use standard Caution! cleaning agents.The front panel is resistant to the following cleaning agents (acc.

  • Page 78: Corrective Maintenance On The Complete Measuring Point Com 2X3-Wx/Ws

    Diagnostics and corrective maintenance Liquisys M COM 223 / 253 8.6.3 Assembly Refer to the assembly operating instructions • Suspension assembly holder CYH101-D with stainless steel immersion tube for maintenance and troubleshooting! The CYH 101-D / -E following assemblies can be used for COS 4: •...
  • Page 79 Liquisys M COM 223 / 253 Diagnostics and corrective maintenance OM253D08.CHP • The O input can be tested by measuring Function, simulation and test with the output DC voltage. COS 3, COS 3-S, COS 3HD If a sensor with analogue on-site electronics is The reference is terminal »0«, the O...

  • Page 80: Accessories

    Accessories Liquisys M COM 223 / 253 Accessories Connection accessories Sensors • Extension cable OMK • Oxygen sensor COS 41 for COS 3, COS 31 and COS 71 • Oxygen sensor COS 31 Non-terminated measuring cable for oxygen sensors (metre goods) •...

  • Page 81: Technical Data

    Liquisys M COM 223 / 253 Technical data Ω °C OM253D10.CHP Technical data Manufacturer Endress+Hauser General specifications Instrument name Liquisys COM 223 Liquisys COM 253 Measured variables , temperature Input measurement with sensor COS 41 / COS 4 / COS 4HD Display and measuring range 0 ...
  • Page 82 °C Technical data Liquisys M COM 223 / 253 Ω Current input Current range 4 ... 20 mA, galvanically separated 260 Ω at 20 mA (voltage drop 5.2 V) Load Output signal output Current range 0 / 4 ... 20 mA, galvanically separated; error current 2.4 / 22 max.
  • Page 83 Liquisys M COM 223 / 253 Technical data Ω °C OM253D10.CHP Accuracy measurement with sensor COS 41 Measured value resolution 0.01 mg/l or 0.1 % SAT or 1 hPa Measured error Display max. 0.5 % of measuring range Repeatability max. 0.2 % of measuring range...

  • Page 84: Appendix

    Appendix Liquisys M COM 223 / 253 Appendix Calibration status Store calibration Entry of Slope calibration value is displayed results is displayed Ref = entry of 100.0 % reference value o.k. Exxx ; no; new current value 75.0 ... 140.0 %...
  • Page 85 Liquisys M COM 223 / 253 Appendix OM253D11.CHP Desktop Liquisys M COM 223/253 - DX/DS with COS 4 / 4HD / 41 Measured value Measured value Measured value Measured value in hPa Sensor signal in nA / mV Current input in %...
  • Page 86 Appendix Liquisys M COM 223 / 253 Function R2 (5) Selection of start pulse switch on or off = internal i+ext = internal + external Clean = Chemoclean = external (only with rel3 a. rel4) i+stp = internal suppressed by external...
  • Page 87 Liquisys M COM 223 / 253 Appendix OM253D11.CHP Desktop Liquisys M COM 223/253 - DX/DS with COS 4 / 4HD / 41 Entry of Entry of Number of Setting of Setting of Number of Entry of interval between pre-rinse time...
  • Page 88 Liquisys M COM 223 / 253 Entry of Calibration status Store calibration Slope results calibration value is displayed is displayed 100.0 % Ref = entry of 75.0 ... 140.0 % reference value o.k. Exxx ; no; new current value C131...
  • Page 89 Liquisys M COM 223 / 253 OM253D11.CHP Desktop Liquisys M COM 223/253 - WX/WS with COS 3 / 3S / 3HD / 31 Measured value Measured value Measured value Measured value in hPa Sensor signal in nA / mV Current input in %...
  • Page 90 Liquisys M COM 223 / 253 Function R2 (5) Selection of start pulse switch on or off = internal i+ext = internal + external Clean = Chemoclean = external (only with rel3 a. rel4) i+stp = internal suppressed by external...
  • Page 91 Liquisys M COM 223 / 253 OM253D11.CHP Desktop Liquisys M COM 223/253 - WX/WS with COS 3 / 3S / 3HD / 31 Setting of Entry of Entry of Number of Setting of Number of Entry of cleaning time interval between...
  • Page 92 Liquisys M COM 223 / 253 Entry of Calibration status Store calibration Slope results calibration value is displayed is displayed Ref = entry of 100.0 % reference value o.k. Exxx ; no; new current value 75.0 ... 140.0 % C131...
  • Page 93 Liquisys M COM 223 / 253 OM253D11.CHP Desktop Liquisys M COM 223/253 - WX/WS with COS 71 Messwertanzeige Messwertanzeige Messwertanzeige Messwertanzeige Messwert in hPa Sensorsignal in nA / mV Stromeingang in % Stromeingang in mA nur Displayumschaltung !! ------------ * diese Felder sind mit COS 71 nicht verfügbar...
  • Page 94 Liquisys M COM 223 / 253 Function R2 (5) Selection of start pulse switch on or off = internal i+ext = internal + external Clean = Chemoclean = external (only with rel3 a. rel4) i+stp = internal suppressed by external...
  • Page 95 Liquisys M COM 223 / 253 OM253D11.CHP Desktop Liquisys M COM 223/253 - WX/WS with COS 71 Setting of Entry of Entry of Number of Setting of Number of Entry of cleaning time interval between pre-rinse time post-rinse time repeat cycles minimum pause time clean.

  • Page 96: Index

    Index Liquisys M COM 223 / 253 Index 0 ....... 18, 21 Damaging.
  • Page 97 Liquisys M COM 223 / 253 Index OM253D12.CHP Keys ....... 18 P controller .
  • Page 98 Index Liquisys M COM 223 / 253 S-Function group ..... 50 Technical data ....79-81 Safety features .
  • Page 99 Declaration of contamination Dear customer, Because of legal determinations and for the safety of our employes and operating equipment we need this “Declaration of contamination” with your signature before your order can be handled. Please put the completely filled in declaration to the instrument and to the shipping documents in any case. Add also safety sheets and/or specific handling instructions if necessary.
  • Page 100 Belorgsintez Canada Poland Minsk Singapore Endress+Hauser Ltd. Endress+Hauser Polska Sp. z o.o. Tel. (01 72) 50 84 73, Fax (01 72) 50 85 83 Endress+Hauser (S.E.A.) Pte., Ltd. Burlington, Ontario K. Warszawy Singapore Tel. (9 05) 6 81 92 92, Fax (9 05) 6 81 94 44 Tel.

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