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8.6

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
cleaning agents.The front panel is resistant to
the following cleaning agents (acc. to test
methode DIN 42 115):
• Isopropanol
• Thinned acids (3 %)
• Thinned alkalis (5 %)
• Ester
• Hydrocarbons
• Ketone
• Household cleaners

Caution!

Do not use any concentrated mineral
acids or alkalis, benzyl-alcohol, me-
thylene chloride or high-pressure wa-
ter vapour at over 100 °C.

Simulation of oxygen measurement:

The instrument versions COM 2x3-DX/-DS
work with the sensors COS 4 / COS 4HD, i.e.
with amperometric sensors without a preamp.
The temperature sensor is directly brought
out.
To perform a functional test of the instrument,
the COS 4 sensor can be simulated by resis-
tors. Since the display value greatly depends
on the sensor slope setting and on temperatu-
re, the following values should be considered
as reference values:

Simulation resistance

Display value

∞

(open)

0 mg O

2

/l

1.9 M

Ω

7 ... 13 mg O

2

/l

With 1.9 M

Ω

and a

temperature equivalent
resistance of 37.3 k

Ω

after calibration

9.0 ... 9.2 mg O

2

/l

4.06 M

Ω

3.3 ... 6.1 mg O

2

/l

Simulation of temperature sensor:

The COS 4 sensor uses an NTC sensor
(30.0 k

Ω

/25 °C) for temperature measurement.

Use the following equivalent resistances to
test the temperature measurement:

Simulation resistance

Display value

95.0 k

Ω

0.0 °C

58.7 k

Ω

10.0 °C

37.3 k

Ω

20.0 °C

30.0 k

Ω

25.0 °C

24.3 k

Ω

30.0 °C

Test procedure:

• Connect the O

2

equivalent resistance (e.g.

decade resistor) to terminals 90 and 91.

• Connect the temperature equivalent

resistance (e.g. decade resistor) to
terminals 11 and 12.

• Air pressure measurement:

On instruments equipped with the S
package, the air pressure measured can
be checked in field S11.
There is no air pressure measurement for
the DX/DS versions. Use the location
altitude setting to compensate for the air
pressure influence.

8.6.2

Oxygen sensor COS 4

Please refer to the operating instructions for
the COS 4 with regard to sensor maintenance
and troubleshooting!
The operating instructions contain detailed
information including:
• Sensor design and function
• Mounting and installation
• Electrical connection

• Start-up and calibration
• Calculation examples and tables for verifi-

cation of measured values

• Maintenance, regeneration, cleaning
• Troubleshooting table
• Accessories and spare parts
• Technical data and ordering information

OM253D08.CHP

Liquisys M COM 223 / 253

Diagnostics and corrective maintenance

Hauser

69

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Содержание Liquisys M COM 223

Страница 1: ...ware version 2 20 or higher Liquisys M COM 223 253 Transmitter for Dissolved Oxygen Operating Instructions Endress Hauser The Power of Know How Quality made by Endress Hauser ISO 9001 ENDRESS HAUSER L...

Страница 2: ...s chapter Installation You wish to operate or reconfigure the device The operating concept is explained in these chapters Operation Setting the device configuration Interfaces If faults occur or a war...

Страница 3: ...rating concept 20 5 Instrument configuration 23 5 1 Start up 25 5 2 System configuration 25 5 3 Current outputs 27 5 4 Monitoring functions 31 5 5 Relay contact configuration 36 5 6 Service 46 5 7 E H...

Страница 4: ...dise must be retained until the matter has been settled Check that the delivery is complete and agrees with the shipping documents and your order refer to nameplate for type and version Keep the origi...

Страница 5: ...eratur output 1 Ausgang 1 output 2 Ausgang 2 mains Netz measuring range Messbereich temperature Temperatur COM 253 DX0110 123456 0 20 mg l 0 200 SAT diss oxygen Gel stsauerstoff 10 60 C 0 4 20 mA 0 4...

Страница 6: ...lation start up operation Warning This device may only be installed connected electrically commis sioned operated and serviced by properly trained personnel autho rised by the system operator The pers...

Страница 7: ...e European standards for industrial applications with regard to electromagnetic compatibility The transmitter is protected against external influences and damage by the following design measures Cable...

Страница 8: ...ble OMK Junction box VBM Variant 2 The transmitter Liquisys M COM 223 or COM 253 in WX or WS version An oxygen sensor COS 3 COS 3S COS 3HD COS 31 or COS 71 An immersion flow or retractable assembly Op...

Страница 9: ...70 70 SXB only WX WS Fig 3 3 Dimensions of Liquisys M COM 253 FELD2 CDR 1 2 3 5 4 Fig 3 2 Inner view Liquisys M COM 253 1 Removable electronics box 2 Partition plate 3 Terminal blocks 4 Fuse 5 Sensor...

Страница 10: ...conjunction with all mounting variants With direct weather ing use the weather protection cover Weather protection cover CYY 101 Weather protection cover for operation in the open for installation on...

Страница 11: ...2 Universal mounting post CYY 102 Square pipe for installation of transmitters Material Stainless steel 1 4301 AISI 304 Order No CYY102 A MONT5 CDR 60 90 70 6 70 8 70 90 M6 8 30 90 60 x 60 1495 150 12...

Страница 12: ...DR Fig 3 7 Liquisys field instrument Pipe mounting MONT2 CDR Fig 3 8 Liquisys field instrument Left Wall mounting Right Mounting with universal post and weather protection cover Installation Liquisys...

Страница 13: ...e Fig 3 9 The required overall installation depth is approx 165 mm MONT9 CDR 92 0 5 92 0 5 90 57 33 ca 25 max 45 96 92 1 2 3 139 6 Fig 3 9 Fixing the installation instrument 1 Front of the control cab...

Страница 14: ...nnex H 47 48 49 57 58 59 L L L N 41 42 43 15 V 85 86 10 50 V 81 93 82 94 10 50 V mA 31 32 mA 33 34 51 52 53 54 55 56 90 12 11 91 S O2 O2 K A A K NTC GN RD BN ANO201 CDR Auxiliary voltage output Digita...

Страница 15: ...act position current free Relay 2 contact position current free Relay 3 contact position current free Relay 4 contact position current free Mains ANO201 2 CDR Auxiliary voltage output Digital Input 2...

Страница 16: ...R REL 3 REL 2 REL 1 131093 4F COM 253 Digital 2 Digital 1 4 20mA 11 12 NC Mains Hilfsenergie L1 N AC DC Contacts max 2A AC 250V 500VA DC 30V 60W 131093_F CDR Fig 3 12 Connection box sticker for field...

Страница 17: ...2 43 41 54 55 56 NC 31 32 34 33 NC 93 86 85 94 81 82 NC NC NC 51 52 53 57 58 59 47 48 49 O 2 Temp opt 15V 10mA REL 4 REL 3 REL 2 REL 1 133226 4B COM 253 W Digital 2 Digital 1 19 18 87 87 88 96 88 97 0...

Страница 18: ...71 with OMK cable Sensor type Sensor cable Extension COS 4 4HD 41 CMK CYK 71 prepared VBM junction box CYK 71 cable COS 3 3S 3HD OMK with SXP plug VS junction box OMK cable COS 31 71 OMK with SXP plug...

Страница 19: ...ured value within allowed limits relay inactive LED red Measured value outside allowed limits relay active Alarm display e g when limit values constantly exceeded Temperature sensor failure or system...

Страница 20: ...play in F 2 Hides the temperature display 3 5 Measured value display in mg l SAT hPa 6 Display of sensor current in nA mV 7 Return to basic setting Repeatedly pressing the MINUS key shows errors 1 The...

Страница 21: ...relays are controlled by the transmitter REL key The REL key selects one of the available relays Switch to manual mode Switch to manual mode for relay setting by pressing the following key combinatio...

Страница 22: ...n Hold at Setup is then reset Code SET MOD CDR Setup mode Access to all configuration settings Measurement mode Standard operating status display of current measured values Press the PLUS or MINUS key...

Страница 23: ...th the PLUS and MINUS keys The ENTER key is used to move from one function to the next within a function group The PLUS and MINUS keys are used for option selection and editing Selections must be conf...

Страница 24: ...l contacts will go to their normal positions An active hold has priority over all other automatic functions With every hold the I component of the controller is set to zero A possibly accumulated alar...

Страница 25: ...ion group as a letter see group designations The functions in the individual groups are counted from the top to the bottom and from the left to the right Factory settings When the instrument is switch...

Страница 26: ...or COS71 Current output 2 temperature value at 4 mA signal current 0 0 C Current output 2 temperature value at 20 mA signal current 40 0 C Alarm contact Steady contact Alarm delay Setting in minutes E...

Страница 27: ...ilure to measure at all 5 2 1 Setup 1 Coding Field Selection or range default bold Display Info A Function group SETUP 1 Initial display in function group SETUP 1 A1 Select operating mode mg l Sat hPa...

Страница 28: ...3HD 31 Both measuring ranges possible The factory settings are printed in bold functions printed in italics are not available in the basic version Coding Field Selection or range Factory setting Disp...

Страница 29: ...you first enter the required current output configuration in pencil in the blank table below Calculating the resulting signal distance per mA ensures that you keep to the required minimum slope Then...

Страница 30: ...e value Version DX DS 0 00 mg l 0 00 20 00 mg l 0 0 SAT 0 0 200 0 SAT 0 hPa 0 400 hPa WX WS with COS 3 3S 3HD 31 0 00 mg l 0 00 60 00 mg l 0 0 Sat 0 0 600 0 Sat 0 hPa 0 1200 hPa WX WS with COS 71 0 00...

Страница 31: ...put lin linear 1 sim Simulation 2 Tab Table 3 The simulation is only exited by selecting O2 1 or O2 3 O221 Enter simulation value current value 0 00 22 00 mA The current value entered here is output t...

Страница 32: ...00 mg l 0 00 60 00 mg l 0 0 Sat 0 0 600 Sat 0 hPa 0 1200 hPa WX WS with COS 71 0 000 mg l 0 000 20 000 mg l 0 0 Sat 0 0 200 0 Sat 0 hPa 0 400 hPa 0 0 C 10 0 60 0 C x value measured value set by user...

Страница 33: ...s This field is not available for certain errors see chap 7 F3 Enter alarm delay 0 min s 0 2000 min s You can use F2 to select whether the alarm delay in entered in s or min F4 Selection of error curr...

Страница 34: ...ted operation of the ventilation units leads to increased operating costs Such cases are recognised and signalled using freely settable monitoring times for the maximum permitted controller switch on...

Страница 35: ...reached or dropped below only upper AT upper AT reached or exceeded lower and upper AT lower AT reached or dropped below or upper AT reached or exceeded Controller monitoring CC Controller Check P5 P8...

Страница 36: ...alarm delay is entered in s or min Undershooting or exceeding according to Fields P3 P4 triggers an alarm only after this delay has elapsed P3 Enter lower alarm threshold Version DX DS 0 00 mg l 000 1...

Страница 37: ...heck CC in Field P5 is switched on P7 Enter maximum permitted time for upper limit violation 240 min 0 2000 min Only needs to be set when Controller Check CC in Field P5 is switched on P8 Enter limit...

Страница 38: ...the relay contact is closed at time t2 when the switch on point has been exceeded t1 and the pickup delay t2 t1 has expired When the alarm threshold t3 is reached and the alarm delay t4 t3 also has ex...

Страница 39: ...ershoots slightly Then increase Kp and reduce Tn shorter times to obtain the shortest possible correction time without overshooting Adjust Tv in the case of fast correction times Adjustments of P ID c...

Страница 40: ...The greater the calculated control output the higher the switching frequency of the contact The maximum switching frequen cy 1 T can be adjusted between 60 and 180 rpm The ON period tON is constant Pu...

Страница 41: ...imer and Chemoclean do not work independently of each other Whilst one of the functions is active the other cannot be started XW X X XW 100 100 y y direct max function inverted min function X setpoint...

Страница 42: ...Hold Water Cleaner t0 t1 t3 t2 t5 t4 Fig 5 11 Sequence of a cleaning cycle Coding Field Selection or range Factory setting Display Info R Function group RELAY Relay contacts can be selected and adjust...

Страница 43: ...rsion 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 WX WS with COS 3 3S 3HD 31 20 00 mg l 0 00 60 mg l 200 0 Sat 0 0 600 0 Sat 400 hPa 0 1200 hPa WX WS with COS 71 20 000...

Страница 44: ...ean 5 Confirmation with ENTER switches off a different already switched on relay function and resets its settings to the default R221 Switch function of R2 2 off or on Off On Settings made for the lim...

Страница 45: ...0 Sat 0 0 200 0 Sat 200 hPa 0 400 hPa WX WS with COS 3 3S 3HD 31 5 00 mg l 0 00 60 mg l 50 0 Sat 0 0 600 0 Sat 200 hPa 0 1200 hPa WX WS with COS 71 5 000 mg l 0 000 20 000 mg l 50 0 Sat 0 0 200 0 Sat...

Страница 46: ...quency is selected in R237 When pulse length is selected R239 is skipped and input continues in R2310 R2310 Minimum ON time tON 0 3 s 0 1 5 0 s This field only appears if pulse length is selected in R...

Страница 47: ...settings to the default See Chap 5 5 4 Contact 3 Water Contact 4 Cleaner R251 Switch function of R2 5 off or on Off On Settings made for Chemoclean are not deleted by switching the function off R252...

Страница 48: ...f only 9 cleaning operations can be performed with water until the next operation takes place with cleaning agent Coding Field Selection or range Factory setting Display Info S Function group SERVICE...

Страница 49: ...e the order code is updated automatically The delivery state will be displayed S8 Serial number is displayed S9 Device reset Reset to basic settings No Sens Sensor data Facty Factory settings Facty Al...

Страница 50: ...layed No editing possibilities E113 E123 E133 E143 E153 Serial number is displayed No editing possibilities E114 E124 E134 E144 E154 Module name is displayed No editing possibilities Coding Field Sele...

Страница 51: ...ing Display Info C Function group CALIBRATION C1 1 Calibration to air Air H2O Ref Calibration in air is only possible if air temperature is 5 C Remove sensor from medium C111 Start calibration Last se...

Страница 52: ...he last 60 s of the cali bration 1 if greater error 44 and calibration is aborted C122 Calibration status is displayed o k E xxx Remove sensor from air saturated water and reimmerse in medium if C122...

Страница 53: ...cated should remain stable C132 Slope is displayed 100 0 75 0 140 0 C133 Calibration status is displayed o k E xxx C134 Save calibration result yes no new If C133 E xxx then only no or new If new retu...

Страница 54: ...terfaces For instruments with a communication interface please refer to the separate Operating Instructions BA 208C 07 en HART or BA 209C 07 en PROFIBUS Interfaces Liquisys M COM 223 253 52 Endress Ha...

Страница 55: ...gh temperatures and contamination 7 1 Troubleshooting instructions Problem Possible cause Remedy Equipment needed spare parts Instrument cannot be operated value 9999 Operation locked Press CAL and MI...

Страница 56: ...ard sensor Install correct membrane cap S membrane cap recognisable through impressed S COS 3S or through white colour of the membrane cap COS 31 With COS 31 self recognition of S version Sensor type...

Страница 57: ...if necessary replace module LSCH x1 Module LSCH x2 See Chap 8 4 4 and 8 5 4 Instrument with PROFIBUS Instrument has no current output Chemoclean function not available No relay module LSR1 x installed...

Страница 58: ...setting for segment coupler in DPV 1 server Incorrect station master address or duplicate address Incorrect station slave address Bus line not terminated Line problems too long cross section too small...

Страница 59: ...yes no E010 Temperature sensor defective Send in sensor for repair yes no E017 Sensor electrode section defective Send in sensor for repair yes no E018 Sensor membrane damaged not sealed or membrane...

Страница 60: ...tion or switch instrument off and back on no no E102 Manual mode active no no E106 Download yes Wait for download to end no no E116 Download error Repeat download no no E152 Measuring signal of main p...

Страница 61: ...ts will guarantee functionality accuracy and reliability after repairs 8 1 Diagnosis The table below will help you diagnose problems and specifies the spare parts required You can find information con...

Страница 62: ...Nominal value in air for 20 C and 1013 hPa 290 nA Pressure value incor rect unreadable Defective pressure sensor Module MKO1 defective Module MKO5 defective Pressure readable in field S 11 Caution Th...

Страница 63: ...14 to E116 Then enter release codes for S package and or Chemoclean For detailed description see Chap 8 5 5 No HART or PROFI BUS interface function Wrong central module HART LSCH H1 or H2 PROFIBUS LSC...

Страница 64: ...Transmitter MKO1 MKO5 Pos 10 20 Power supply unit Pos 40 80 Central module LSCH x LSCP Pos 330 Housing assembly Pos 320 Back plate End frame latches Pos 310 Side wall for in struments wi thout relay m...

Страница 65: ...lockwise Remove the complete electronics block from the housing The modules are plugged together mechanically and can be easily separated Simply pull the central display module forwards Gently pull th...

Страница 66: ...itter MKO5 WX WS O2 Temp air pressure 51506938 340 End frame PROFIBUS DP End frame with D Submin plug in connector 51502513 330 400 Housing module Housing with front membrane Sensor plungers Seal Spec...

Страница 67: ...screws Pos 450b Torx screw for central module Pos 330 Electronics box Pos 450a Torx screws K4x10 Pos 310 320 Ribbon cables Pos 460a Cover screws Pos 250 260 Transmitter module MKO1 MKO5 Top Bottom P o...

Страница 68: ...e module latches outward and remove the module s Removal of central module Pos 40 Loosen the screw Pos 450b in the dis play lid Removal of docking assembly Pos 340 Remove the screws Pos 450c in the bo...

Страница 69: ...module LSCP DP PROFIBUS DP no current output 51506938 250 O2 transmitter MKO1 DX DS O2 Temperature O2 Temp air pressure 51501207 51501208 260 O2 transmitter MKO5 WX WS O2 Temp air pressure 51506938 37...

Страница 70: ...age is enabled e g by accessing function group CHECK Code P or the Chemoclean function Check the Plus packet release e g by opening the function group CHECK Code P or the Chemoclean function Restore t...

Страница 71: ...1 mg O2 l Simulation of temperature sensor The COS 4 sensor uses an NTC sensor 30 0 k 25 C for temperature measurement Use the following equivalent resistances to test the temperature measurement Sim...

Страница 72: ...lowing cleaning agents acc to test me thode DIN 42 115 Isopropanol Thinned acids 3 Thinned alkalis 5 Ester Hydrocarbons Ketone Household cleaners Caution Do not use any concentrated mineral acids or a...

Страница 73: ...a comparison 8 7 2 Oxygen sensors COS 31 COS 71 Please refer to the operating instructions for the COS 31 COS 71 with regard to sensor maintenance and troubleshooting The operating instructions contai...

Страница 74: ...connection between sensor and instrument Order No 50003987 Sensors Oxygen sensor COS 41 Oxygen sensor COS 31 Oxygen sensor COS 71 Order sensors using the product code see Technical Information TI 284C...

Страница 75: ...000 m Salinity setting range 0 4 Nominal slope sensor in air 25 C 1013 hPa 290 nA Required conductor cross section COM 223 COM 253 0 75 mm2 AWG 18 1 50 mm2 AWG 14 Terminal cross section 2 5 mm2 Maximu...

Страница 76: ...eover contacts Switching current with ohmic load cos 1 max 2 A Switching current with inductive load cos 0 4 max 2 A Switching voltage max 250 V AC 30 V DC Switching power with ohmic load cos 1 max 12...

Страница 77: ...itions 20 60 C Storage and transport temperature 25 65 C Relative humidity nominal operating conditions 10 95 non condensing Ingress protection of panel mounted instrument IP 54 front panel IP 30 encl...

Страница 78: ...0 1 Selection of value pair in table 1 number of value pair in table 1 Entry of simulation value 0 22 00 mA current value sim Simulation Selection of current output Out 2 Out 1 lin linear Selection of...

Страница 79: ...error current for previously set error yes no Automatic Start of cleaning cycle yes no Selection next error or return to menue R Next next error P6 P7 P8 Setting of maximum permissible limit violatio...

Страница 80: ...ibration E151 E131 E121 E111 E1 1 E1 2 E152 E142 E132 E122 E112 LC C T Limit contacter LC PV limit contacter O2 Setting of pause time 1 7200 min 360 min Entry of set point 5 00 mg l 50 0 SAT 200 hPa 0...

Страница 81: ...instrument test display no E156 E157 E158 E159 Entry of cleaning time 0 999 s 10 s Entry of post rinse time 0 999 s 30 s Setting of interval between 2 cleaning cycles pause time 1 7200 min 360 min Set...

Страница 82: ...in table 1 Entry of simulation value 0 22 00 mA current value sim Simulation Selection of current output Out 2 Out 1 lin linear Selection of current range 0 20 mA 4 20 mA Entry of 0 4mA value 0 00 mg...

Страница 83: ...ate error current for previously set error yes no Automatic Start of cleaning cycle yes no Selection next error or return to menue R Next next error P6 P7 P8 Setting of maximum permissible limit viola...

Страница 84: ...1 E1 2 E152 E142 E132 E122 E112 LC C T Limit contacter LC PV limit contacter O2 Setting of pause time 1 7200 min 360 min Entry of set point 5 00 mg l 50 0 SAT 200 hPa 0 20 mg l 0 200 SAT 0 400 hPa En...

Страница 85: ...erval between 2 cleaning cycles pause time 1 7200 min 360 min Setting of minimum pause time min 1 3600 min 120 Number of clean cycles without cleaning agent 0 9 0 Setting of minimum pause time min 1 3...

Страница 86: ...in table 1 Entry of simulation value 0 22 00 mA current value sim Simulation Selection of current output Out 2 Out 1 lin linear Selection of current range 0 20 mA 4 20 mA Entry of 0 4mA value 0 000 m...

Страница 87: ...eingestellten Fehler wirksam stellen ja nein Automatischer Start der Reinigungsfunktion ja nein Ausw n chst Fehler oder zur ck zum Men R Forts n chst Fehler P6 P7 P8 Einstellung der maximal zul ssige...

Страница 88: ...1 1 E1 2 E152 E142 E132 E122 E112 LC C T Limit contacter LC PV limit contacter O2 Setting of pause time 1 7200 min 360 min Entry of set point 5 00 mg l 50 0 SAT 200 hPa 0 20 mg l 0 200 SAT 0 400 hPa E...

Страница 89: ...interval between 2 cleaning cycles pause time 1 7200 min 360 min Setting of minimum pause time min 1 3600 min 120 Number of clean cycles without cleaning agent 0 9 0 Setting of minimum pause time min...

Страница 90: ...uring point 69 CURRENT OUTPUT O 28 Current output table 27 29 Current outputs 27 D D component 37 Damaging 2 Definition of terms 59 Derivative action time 44 Diagnosis 59 Dimensions 7 Dismantling 2 Di...

Страница 91: ...p 28 30 ON time 44 Operating concept 20 Operating modes 20 Operation 4 17 22 Operator interface 17 Optoscope 68 Order code 47 P P controller 37 P ID controller 36 37 P Function group 34 35 Packaging 2...

Страница 92: ...parts for CPM 253 67 Spare parts orders 68 Start pulse 45 Start up 4 Start up menu 25 Storage 2 SW Upgrade 47 Switch off point contact 41 Switch off temperature 42 Switch on point contact 41 Switch o...

Страница 93: ...f health o biological hazardous o inflammable o safe Please mark the appropriate warning hints 5HDVRQ IRU UHWXUQ BBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBB BBBBBBBBBBB...

Страница 94: ...Tel 042 56993 Fax 042 50981 Brazil Samson Endress Hauser Ltda Sao Paulo Tel 011 50313455 Fax 011 50313067 Canada Endress Hauser Ltd Burlington Ontario Tel 905 6819292 Fax 905 6819444 Chile Endress Ha...

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