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MemoTrans

29

11.3.3 Slope

pH, pH/ORP, oxygen

Path:

Application



Sensor



Extended setup



Diagnostic settings

Function

Options

Info

pH

Slope

The slope characterizes the sensor condition. The greater the deviation
from the ideal value (pH), the worse the condition of the sensor.

Warning limit

25.00

…

65.00 mV/

pH

Factory setting

55.00 mV/pH

Specify your limit values for slope monitoring. Diagnostics code and
associated message text:
509

Sensor calibration

Oxygen

Upper warning limit

0

…

200.0 %

Factory setting

140.0 %

Diagnostics code and associated message text:
511

Sensor calibration

Lower warning limit

0

…

200.0 %

Factory setting

60.0 %

Diagnostics code and associated message text:
509

Sensor calibration

11.3.4 Delta Slope

pH, pH/ORP, oxygen

Path:

Application



Sensor



Extended setup



Diagnostic settings

Function

Options

Info

pH and pH/ORP combo sensors

Delta slope

The device determines the difference in slope between the last calibra-
tion and the penultimate calibration, and issues a warning or an alarm
depending on the setting configured. The difference is an indicator for
the condition of the sensor. The greater the change, the greater the
wear experienced by the pH-sensitive glass membrane as a result of
chemical corrosion or abrasion.

Function

Selection

• Off

• On

Factory setting

Off

Switches the function on or off

Warning limit

0.10

…

10.00 mV/pH

Factory setting

6.00 mV/pH

Specify your limit values for monitoring the slope differential.
Diagnostics code and associated message text:
518

Sensor calibration

Oxygen

Delta slope

The device determines the difference in slope between the last calibra-
tion and the penultimate calibration, and issues a warning or an alarm
depending on the setting configured. The difference is an indicator for
the condition of the sensor.
An increasing change indicates the formation of buildup on the sensor
diaphragm or electrolyte contamination. Replace the diaphragm and
electrolyte as specified in the instructions in the sensor User Manual.

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Содержание MemoTrans

Страница 1: ...User Manual MemoTrans Compact multiparameter transmitter www knick de Read before installation Keep for future use ...

Страница 2: ... is designed to give the reader a basic understanding of safety It illus trates general hazards and gives strategies on how to avoid them Warnings This document uses the following warnings to indicate hazardous situations Symbol Category Meaning Remark WARNING Designates a situation that can lead to death or serious irreversible injury The warnings contain information on how to avoid the hazard CA...

Страница 3: ...Connection 10 5 1 Connection 10 5 2 Post Connection Check 10 6 Operating Options 11 6 1 Overview of Operating Options 11 6 2 Structure and Function of the Operating Menu 11 7 System Integration 12 7 1 Integrating the Compact Transmitter into the System 12 8 Commissioning 13 8 1 Preparatory Steps 13 8 2 Function Check 13 8 3 Date and Time 15 8 4 Configuring the Measuring Device 15 8 5 Configuration...

Страница 4: ...ting Sensor Diagnostic Information 27 11 4 Simulation 35 11 5 Diagnostic List 36 11 6 Event Logbook 46 11 7 Resetting the Measuring Device 46 11 8 Device Information 46 12 Maintenance 47 12 1 Remarks 47 12 2 Maintenance Tasks 47 13 Repair 48 13 1 General Notes 48 13 2 Return 48 13 3 Disposal 48 14 Specifications 49 15 Power Supply 52 Index 53 ...

Страница 5: ...sors with Memosens technology It is preset for sensor parameters and a measuring range span with 4 20 mA communication The device is designed for use in the following industries Life science Chemistry Water and wastewater Food and beverage Power plants Other industrial applications 1 3 Symbols and Markings on the Product CE marking Special conditions and the product s possible danger points Read t...

Страница 6: ...ring operation If faults cannot be rectified Products must be taken out of service and protected against unintentional operation CAUTION Cleaning 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 If you wish to check the cleaning function and have ther...

Страница 7: ... Memosens connection 2 Housing 4 LED for optical signaling of operating statuses of measuring point 2 1 1 Measuring Parameters The transmitter is designed for Memosens sensors with inductive connector pH ORP pH ORP combo sensors Contacting conductivity Oxygen amperometric ...

Страница 8: ...ion Make sure to comply with the permitted ambient conditions If you have any questions please contact your supplier or local sales center 3 2 Product Identification 3 2 1 Nameplate The nameplate contains the following information Manufacturer identification Serial number Safety information and warnings Ex labeling on hazardous area versions Certificate information Compare the data on the nameplat...

Страница 9: ...MemoTrans 9 4 Installation 4 1 Dimensions Note All dimensions are given in millimeters inches ...

Страница 10: ...the shielding braid and ground the braid appropriately The grounding cable is not a part of the package contents and must be provided by the customer Connect ferrules as specified in the table Cable Function Blue BU 4 20 mA White WH 4 20 mA 5 2 Post Connection Check WARNING Connection errors The safety of people and of the measuring point is endangered The manufacturer does not accept any responsi...

Страница 11: ...rated via four main menus Guidance Diagnostics Application System Menu Function Guidance Contains functions involving a self contained sequence of activities e g for calibration wizard Diagnostics Contains information regarding operation diagnostics and troubleshooting as well as configuration of the diagnostic behavior Application Sensor data for specific optimization and for detailed process adj...

Страница 12: ...n 4 20 mA HART 7 1 1 HART In addition to the analog 4 20 mA signal further measured values and the status of the device can be transmitted digitally via the HART protocol Parameter setting is also possible using an additional control unit and a suitable driver Operation is possible via various operating devices handhelds ...

Страница 13: ...ING Incorrect connection incorrect supply voltage Safety risks for staff and device malfunctions Check that all connections have been established correctly in accordance with the wiring diagram Ensure that the supply voltage matches the voltage indicated on the nameplate Familiarize yourself with the operation of the device before it is first switched on In particular please read the Basic Safety ...

Страница 14: ...erything OK Measured value at PLC in automatic HOLD If the Sensor replacement alarm delay is exceeded the device transmits a signal on alarm The automatic hold is set to 30 seconds but can be configured to suit the customer s needs Red Blinks quickly Failure of device or sensor Error status signal as per NAMUR NE107 Red green Blinks three times red alternating with three times green Squawk Squawk ...

Страница 15: ... Device Path Application Units Function Options Info Temperature unit Selection C F K Factory setting C Conductivity unit Selection µS cm mS cm S cm µS m mS m S m Factory setting mS cm To be selected for conductivity Concentration liquid unit Selection mg l µg l ppm ppb To be selected for oxygen Concentration gaseous unit Selection vol ppm Vol 8 4 1 Changing the Tag Number You can change the tag n...

Страница 16: ...tion Off TAG Group Factory setting Off Group Range 0 65535 Extended setup Conductivity Current cell constant Read only Value currently saved in the sensor Compensation Selection None Linear NaCl IEC 746 3 Water ISO7888 20 C Water ISO7888 25 C Ultrapure water NaCl Ultrapure water HCl Factory setting Linear Various methods are available to compensate for the temperature dependency Depending on your ...

Страница 17: ...Factory setting pH 7 00 Only change the value if you are using a sensor with an internal buffer other than pH 7 Oxygen Medium pressure Selection Process pressure Air pressure Altitude Factory setting Air pressure Press Measured value to connect a pressure measured value via a fieldbus input or a current input This measured value is then used for medium pressure compensation For the other types of ...

Страница 18: ...ting for Buffer manufacturer Automatic The device recognizes the buffer automati cally The recognition depends on the setting for Buffer manufacturer NOTICE As their zero point is offset enamel pH sensors cannot be calibrated and adjusted with automatic buffer recognition Manual You enter any two buffer values These must differ in terms of their pH value Buffer manufacturer Selection Endress Hause...

Страница 19: ...alibration mutually dependent values If you specify the altitude the average air pressure is calculated from the barometric altitude formula and vice versa If you are compensating using the process pressure enter the pressure in your calibration medium here The pressure is then independent of the altitude Air pressure Medium pressure air pressure 500 1200 hPa Factory setting 1013 hPa Altitude Medi...

Страница 20: ...al pressure saturation Conc liquid unit Conc gaseous unit Raw value nA Temperature Conductivity options Conductivity Resistance Raw value cond uncomp Temperature Depending on connected sensor Range lower value 4 mA The unit depends on the sensor configured Enter the measuring range The lower and upper range values are assigned to the 4 mA value and the 20 mA value respectively The system uses the ...

Страница 21: ...n SV secondary TV tertiary QV quaternary 8 4 5 Hold The hold state is a safe condition during configuration and calibration Path System Hold Function Options Info Hold release time 0 600 s Factory setting 0 s The hold status is maintained for the duration of the delay time when you switch to the measuring mode Hold behavior Selection Ignore Freeze Fixed value Factory setting Freeze Hold current 3 ...

Страница 22: ... Display the following configurations For general system information Path System System information For general HART information Path Application HART For general sensor information Path System Sensor information General information Extreme values Sensor operation Sensor specifications For general calibration information Path System Temperature adjustment Primary value ...

Страница 23: ...sors pH Raw value pH Impedance glass Impedance reference ORP mV ORP rH Temperature For oxygen sensors Partial pressure saturation Conc liquid unit Conc gaseous Raw value nA Raw value µs Temperature For conductivity sensors Conductivity Resistance Raw value cond uncomp Temperature Current output Data relating to the transmitter Tag number Device type Serial number Firmware version Order code ...

Страница 24: ...ctivity Select the parameters supported by the device 9 2 Adapting the Measuring Device to the Process Conditions Medium Compensation in the Process for Oxygen Path Application Sensor Extended setup Function Options Info Medium pressure Selection Process pressure Air pressure Altitude Specify altitude 300 4000 m process pressure 500 9999 hPa or air pressure 500 1200 hPa of measuring point Salinity...

Страница 25: ...is stored in the sensor ORP 1 point calibration mV 1 point calibration is used if only the deviation from a reference value is to be detected rather than an absolute value ORP assignment The measured value in mV is converted to a concentration using a conversion table 10 4 Conductivity Sensor Cell constant The electrical resistance or its reciprocal the conductance G is calculated according to Ohm...

Страница 26: ...his message Status signal The messages are divided into different error categories in accordance with NAMUR NE107 Diagnostics behavior Selection Service Alarm LED as per NAMUR NE107 categories Three rapid green blinks at the start of the message means Everything OK but pay attention The more red blinks there are at the end of a message the more critical the diagnostics as per NE107 Continuous red ...

Страница 27: ...tics code and associated message text 124 Sensor glass Upper warning limit 0 10000 MΩ Factory setting 2500 MΩ Diagnostics code and associated message text 125 Sensor glass Lower limit Selection Off On Factory setting Off On The Sensor Check System SCS operates with the following settings for the lower warning and alarm limits Off Monitoring of the lower warning and alarm limits is switched off Low...

Страница 28: ...its is switched off Upper alarm limit 2000 2000 mV Factory setting 1000 mV Upper warning limit 2000 2000 mV Factory setting 900 mV Lower limit Selection Off On Factory setting Off On The Sensor Check System SCS operates with the following set tings for the lower warning and alarm limits Off Monitoring of the lower warning and alarm limits is switched off Lower alarm limit 2000 2000 mV Factory sett...

Страница 29: ...ce in slope between the last calibra tion and the penultimate calibration and issues a warning or an alarm depending on the setting configured The difference is an indicator for the condition of the sensor The greater the change the greater the wear experienced by the pH sensitive glass membrane as a result of chemical corrosion or abrasion Function Selection Off On Factory setting Off Switches th...

Страница 30: ...ontamination for example Upper warning limit Upper warning limit pH 6 00 12 00 1 Upper warning limit 950 mV 2 Factory setting pH 8 00 500 mV Diagnostics code and associated message text 505 Sensor calibration 515 Sensor calibration 2 Lower warning limit Lower warning limit pH 2 00 8 00 1 Lower warning limit 5000 mV 2 Factory setting pH 8 00 500 mV Diagnostics code and associated message text 507 S...

Страница 31: ...ify the limit values for zero point monitoring in your sensor Diagnostics code and associated message text 520 Sensor calibration 11 3 7 Operating Hours Limits Path Application Sensor Extended setup Diagnostic settings Function Options Info Limits operating hours The total operating time of the sensor and its use under extreme conditions is monitored If the operating time exceeds the defined thres...

Страница 32: ...ns Info Sterilizations The system counts the number of operating hours in which the sensor is exposed to a temperature that is typical for a steriliza tion This temperature depends on the sensor Function Selection Off On Factory setting Off Switches the function on or off Warning limit 0 1000 Factory setting 30 Specify the limit value for the number of sensor sterilizations Diagnostics code and as...

Страница 33: ...n alarm is triggered if the measuring signal does not change over a specific period several measured values Function Selection Off On Factory setting Off Switches the function on or off Duration 1 240 min Factory setting 60 min Once this time has elapsed the calibration timer diagnostic message along with the code 102 appears on the display 11 3 11 Measured Value Path Application Sensor Extended s...

Страница 34: ...cifications You define the warning limit as a of the alarm value Off 10 0 99 9 Factory setting 80 0 Diagnostics code and associated message text 915 USP EP warning If the value exceeds the USP or EP alarm values saved in the software diagnostics message 914 USP EP alarm is displayed 11 3 13 Cap Calibrations Path Application Sensor Extended setup Diagnostic settings Function Options Info No calibra...

Страница 35: ...23 mA Set current value Measured value Simulation of a measured value Simulation Selection Off On Factory setting Off Switch simulation on or off Process variable Dependent on sensor Select measured variable to be simulated depending on connected sensor Simulation value Display the simulated measured value in the selected unit Temperature Simulation of temperature Simulation Selection Off On Facto...

Страница 36: ...lace sensor 004 Sensor defective F On On All No Replace sensor 005 Sensor data invalid F On On All No 1 Check the firmware compatibility of the sensor and transmitter or load suitable firmware 2 Set the sensor to the factory settings disconnect the sensor and reconnect it 3 Update transmitter data 4 Replace sensor 010 Sensor scanning F Off Off All No Wait for initialization to be finished 012 Writ...

Страница 37: ...ent can still take place Replace sensor 109 Sterilization cap M On Off O No Specified number of sterilizations for the cap is reached Measurement can still take place Replace membrane cap 111 Operating time cap M On Off O No Hours of operation monitoring The limit set for the total hours of operation for the cap has been reached Measurement can still take place 1 Replace the cap 2 Change monitorin...

Страница 38: ...age F On Off P ISFET DO Yes Leak current warning Measuring can continue until the alarm occurs 130 Sensor supply F On Off P O Yes Poor sensor power supply 1 Check sensor connection 2 Replace sensor 136 Sensor temp high S On Off O No Temperature outside specification 1 Check process 2 Check installation 141 Polarization F On Off C No Polarization warning The measured value is corrupted at high cond...

Страница 39: ... 1 Replace sensor 2 Change monitoring limit 3 Disable monitoring 183 Operating time M On Off O amp No Operating hours 10 nA OOS51D measurement can still take place 1 Replace sensor 2 Change monitoring limit 3 Disable monitoring 184 Operating time M On Off O amp No Operating hours 30 nA OOS22D measurement can still take place 1 Replace sensor 2 Change monitoring limit 3 Disable monitoring 185 Opera...

Страница 40: ...n still take place 1 Replace sensor 2 Change monitoring limit 3 Disable monitoring 195 Operating time M On Off C No Operating hours 120 C measurement can still take place 1 Replace sensor 2 Change monitoring limit 3 Disable monitoring 197 Operating time M On Off C No Operating hours 140 C measurement can still take place 1 Replace sensor 2 Change monitoring limit 3 Disable monitoring 198 Operating...

Страница 41: ... energy consumption 384 Firmware error F On On All No Sensor measuring sequence counter No measurement signal from sensor 1 Update software 2 Contact the Service Department 408 Calibration aborted M Off Off P C O No Calibration aborted 411 Upload download active please wait C On Off All No Up Download active please wait 460 Output undershot S On Off All No Current output undershot Measured value o...

Страница 42: ...alibration solution 3 Repeat calibration 507 Sensor calibration M On Off P O No Min zero point warning Measurement can still take place Possible reasons sensor old or defective reference blocked calibration solution too old or contaminated 1 Check or replace sensor 2 Check or replace calibration solution 3 Repeat calibration 509 Sensor calibration M On Off P O No Min slope warning Measurement can ...

Страница 43: ... sensor 2 Check or replace calibration solution 3 Repeat calibration 518 Sensor calibration M On Off P O No Delta slope warning Measurement can still take place Possible reasons sensor old or defective reference blocked calibration solution too old or contaminated 1 Check or replace sensor 2 Check or replace calibration solution 3 Repeat calibration 520 Sensor calibration M On Off P O No Delta zer...

Страница 44: ...de specification table incomplete Extend table 553 Conductivity high S On Off C 554 Concentration low S On Off C No Process concentration above below concentration table Possible reasons process value outside specification table incomplete Extend table 555 Concentration high S On Off C 722 Sensor reference F On On P Yes Alarm Reference membrane impedance too low 1 Check or replace sensor 2 Check c...

Страница 45: ...air air pockets in fitting incorrect flow to sensor sensor defective 1 Change process value 2 Check electrode system 3 Change sensor type 843 Process value S Off Off P 904 Process check alarm F On On All No Stagnating measuring signal Reasons sensor in air sensor fouling incorrect flow to sensor sensor defective 1 Check electrode system 2 Check sensor 3 Restart the device 910 Limit switches S On O...

Страница 46: ...ess Finish to start the application Press X to close the wizard without running it and to go back Restart and keep all the settings Factory settings Press Finish to start the application Press X to close the wizard without running it and to go back Restart with factory settings Settings that have not been saved are lost TAG does not change 11 8 Device Information Squawk Path System Device Manageme...

Страница 47: ...d Damage to housing surface and optical waveguide Never use concentrated mineral acids or alkaline solutions for cleaning Never use organic cleaners such as acetone benzyl alcohol methanol methylene chloride tetrahydrofuran xylene or concentrated glycerol cleaner The device is resistant to Ethanol for a short time Diluted acids max 2 HCl Diluted bases max 3 NaOH Soap based household cleaners Dishw...

Страница 48: ...red or delivered To ensure safe professional and swift product returns please contact your local Sales Center for information on the procedure to be followed and general conditions 13 3 Disposal The device contains electronic components It must therefore be disposed of in accordance with regulations on the disposal of electronic waste Observe the local regulations ...

Страница 49: ...S m Temperature 0 0 100 0 C 32 0 212 0 F 223 2 523 2 K Oxygen display range 1 Partial pressure 0 00 400 0 hPa Concentration in liquids 0 00 20 00 mg l 20 00 120 000 00 µg l 0 02 120 00 ppm 20 00 120 000 00 ppb Concentration in gas phase 0 00 20 00 Vol 200 00 2 000 000 00 ppmVol Raw value nA 0 00 12 000 00 nA Temperature 50 0 250 0 C 58 0 482 0 F 223 2 523 2 K pH ORP sensor standardization Operatin...

Страница 50: ...number of calibration unit device serial number ORP calibration data Date time mode calibration method number of calibrations offset buffer 1 delta offset serial number of calibration unit device serial number Conductivity calibration data Date time mode calibration method number of calibrations cell constant delta cell constant conductivity reference value temperature serial number of calibration...

Страница 51: ...with a fault current 4 mA Surge protection IEC 61 000 4 4 and IEC 61 000 4 5 1 kV each Signal on alarm 3 6 23 mA Connection 2 wire cable 4 20 mA positive blue 4 20 mA negative white Housing PEEK color light gray RAL 7035 Memosens closure PEEK color black Cable TPE color black Ø approx 5 mm Optical waveguide PC color transparent Cable length 3 m 10 ft 7 m 23 ft 15 m 49 ft Impact loads The product i...

Страница 52: ...ng fault current 4 mA The lower voltage value in each case applies only to a load resistance of 0 Ohm NOTICE The device does not have a power switch At the supply point the power supply must be isolated from dangerous live cables by double or reinforced insulation in the case of devices with a 24 V power supply ...

Страница 53: ...nstallation and function check 13 Installation check 13 Intended use 5 Introductory safety chapter 2 L LED display 14 Logbook 46 M Maintenance 47 Measuring parameters 7 Medium compensation 24 Messages 36 N Nameplate 8 Nominal operating conditions 51 Notes on safety information 2 O Occupational safety 5 Operating hours 31 Operating menu 11 Operating point 30 Operation 23 Operational safety 6 Overvi...

Страница 54: ...MemoTrans 54 U Use intended 5 W Warnings 2 ...

Страница 55: ...MemoTrans 55 Notes ...

Страница 56: ...fo knick de www knick de Local Contacts www knick international com Translation of the original instructions Copyright 2022 Subject to change Version 2 This document was published on April 05 2022 The latest documents are available for download on our website under the corresponding product description TA MT201N BA multi KNEN02 099576 ...

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