Technical Information TI 195C/07/en No. 51500053 The MyPro CLM 431 and its compact version MyPro CLD 431 are field-tested and reliable analytical transmitters used to determine conductivity or concentration in all areas of process control and engineering. Thanks to its compact dimensions and versatile mounting options, the MyPro can be used in any industrial environment. Areas of application • Chemical and petrochemical industries, including Ex areas • Pharmaceutical industry • Power plants • Water processing • Wastewater treatment Benefits at a glance • High reliability and accuracy thanks to: – comprehensive self-monitoring functions – convenient calibration functions for wet and dry calibration • Smallest intelligent analytical transmitter currently available • Extremely simple installation with numerous mounting options; display and housing can be rotated • Convenient operation via: – keypad on instrument – hand-held HART ® terminal – Commuwin II via HART ® or PROFIBUS-PA Additional advantages of compact version • Minimal installation requirements • Simple handling • Rugged measuring cells made of PFA or PEEK Inductive conductivity measurement mypro CLM 431 / CLD 431 inductive Two-wire transmitter for inductive measurement of conductivity in Ex and non-Ex areas with HART ® or PROFIBUS communication Hauser + Endress Nothing beats know-how Quality made by Endress+Hauser ISO 9001
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HART or PROFIBUS communication - Endress+Hauser …€“ keypad on instrument – hand-held HART® terminal – Commuwin II via HART® or PROFIBUS-PA Additional advantages of compact
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TechnicalInformationTI 195C/07/enNo. 51500053
The MyPro CLM 431 and its compactversion MyPro CLD 431 are field-testedand reliable analytical transmitters usedto determine conductivity orconcentration in all areas of processcontrol and engineering. Thanks to itscompact dimensions and versatilemounting options, the MyPro can beused in any industrial environment.
Areas of application• Chemical and
petrochemical industries,including Ex areas
• Pharmaceutical industry• Power plants• Water processing• Wastewater treatment
Benefits at a glance• High reliability and accuracy thanks to:
– comprehensive self-monitoringfunctions
– convenient calibration functions forwet and dry calibration
• Smallest intelligent analyticaltransmitter currently available
• Extremely simple installation withnumerous mounting options; displayand housing can be rotated
• Convenient operation via:– keypad on instrument– hand-held HART® terminal– Commuwin II via HART® or
PROFIBUS-PA
Additional advantages of compactversion• Minimal installation requirements• Simple handling• Rugged measuring cells made of PFA
Two-wire transmitter for inductive measurementof conductivity in Ex and non-Ex areas withHART® or PROFIBUS communication
Hauser+EndressNothing beats know-how
Quality made byEndress+Hauser
ISO 9001
Measuring system A measuring system generallycomprises:• the MyPro transmitter• an inductive conductivity measuring
cell with an integrated temperaturesensor Pt 100 and a fixed cable
• a fitting for weld-mounting or anassembly for installation in a pipelineor tank
Conductivitymeasuring cell CLS 50
The MyPro CLM 431 / CLD 431transmitter has an overall measuringrange of 0 ... 2000 mS/cm whichmay be spread as required by theapplication at hand.
General information MeasurementThe inductive transmitter MyProCLM 431 / CLD 431 can be switchedfrom conductivity to concentrationmeasurement.In the concentration measurementmode, several fixed concentrationcurves stored in the instrument anda user-programmable concentrationcurve are available:• NaOH 0 ... 15%• HNO3 0 ... 20%• H2SO4 0 ... 30% / 96 ... 99.7%• H3PO4 0 ... 12%• HCl 0 ... 15%
The reliability and accuracy of themeasurement are top priorities,particularly because inductivemeasurement is frequently subject toexacting conditions. For this reason,this version of the MyPro with its uniqueSensor Check System, which monitorsfor ageing, breakage, short-circuit andmoisture penetration, plays a leadingrole in this product segment. Cyclicalautomatic demagnetisation and acyclical adjustment routine help todeliver accurate measured values atall times.
Application range ofinductive conductivitymeasuring cell CLS 50
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General information(continued)
Self-diagnosisThe MyPro permanently monitors theoperating condition of the measuringsystem. 27 possible causes of errorsare distinguished. Error conditions aresignalled via the field display and theHART® or PROFIBUS interface and, inthe case of HART® communication, alsovia an error current signal (22 mA).
Temperature compensationThe MyPro offers several temperaturecompensation options:• Linear compensation 0 ... 10%/K with
the reference temperature selectableby the user
• Compensation according to IEC 746-3for NaCl
• Compensation with programmableα table containing up to 10 elements.
The temperature can either be measuredcontinuously or entered as a fixed value.
Operation Menu-guided operationThe functions of the MyPro CLM 431 /CLD 431 are arranged at two differentlevels and can be accessed using fourkeys:Operating level 1• Viewing of current settings
(secondary parameters)• Error diagnosis
(diagnostic parameters)• Current output settings
(parameter settings)• CalibrationOperating level 2• All other settings are located at this
level, e.g. selection of conductivity orconcentration measurement.
The keypad is located underneath aprotective cover to prevent unintentionalactuation and soiling.
No unauthorised accessConfiguration and calibration data areprotected against undesirable modificationby means of two access codes.
DisplayThe high-contrast liquid crystal displaylocks in at 90° angles to guaranteeoptimal readability in different mountingpositions.
ANZEIGE.CDR
Display
HARTHandterminal1 Offline
3 Transfer4 Frequenzg erät5 Extras
2 Online
IO
–+ C
F
F> 3 s
Operating level 1• Daily work and diagnosis
Operating level 2• Configuration and diagnosis
• Plain text menu guidance
• Clear overall view in the form ofa matrix
• Graphical user interface• Data entry/recorder function• Upload/download archiving• Off-line parameter setting
TI195Y04.CDR
Keypad oninstrument
Hand-held HART® terminal
Commuwin II via HART® or PROFIBUS- PA
Operation of MyProCLM 431 / CLD 431 via:• keys on instrument• hand-held HART®
terminal• Commuwin II
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Electrical connection
Measuring cableThe MyPro CLM 431 transmitter comeswith separate connection compartmentsfor the two-wire line and the measuringcell cable. The conductivity measuringcells are connected via standardscreened, multi-core measuring cables(permanently attached to sensor).Junction box VBM and extension cableCLK 5 are to be used for measuringcable extension.
+4...20 mA
Test
12
+
4...20 mA
Test
12
+
4...20 mA
Test
1 32+
0000
Warning:Observe national regulations forinstallation in Ex area!
LM431KE1.CDRConnection of aninductive measuring cell
4
Dimensions ofMyPro CLM 431
MASSCLM.CDR
104 137
74
227
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Dimensions ofMyPro CLM 431
5
Dimensions ofMyPro CLD 431inductive
Mounting ofMyPro CLD 431inductive
Compact version: The distance of themeasuring cell from the inside pipe wallaffects the accuracy. If the wall clearanceis adequate (a > 30 mm), the installationfactor f can be neglected (f = 1.00). If the
wall clearance is lower, the installationfactor increases for electrically insulatingpipes (f > 1) and decreases (f < 1) forelectrically conducting pipes.
Compact conductivity measuring system MyPro CLD 431 inductive
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Accessories Transmitter power supply units– RN 221 power separator (non-Ex)– RN 221 Z power separator (Ex)– NX 9120 power supply
(one channel, non-Ex)– NX 9121 power supply unit
(three channels, Ex)– One-channel transmitter power
supply units with galvanicallyseparated power output
Output voltage: typ. 24 V DC ± 1 VOutput current: max. 33 mACurrent limiting: 38 mA ± 5 mA
Hand-held HART ® terminal DXR 275The hand-held terminal communicateswith any HART®-compatible unit viathe 4 ... 20 mA line.The digital communication signal issuperimposed on the 4 ... 20 mAsignal without altering it. The simple,straightforward design of the userinterface provides convenientaccess to the entire functionality ofthe instrument.
Commuwin II with CommuboxCommuwin II is a graphical, PC-basedoperating program for intelligentmeasuring instruments.DDE interfaces (DDE = dynamic dataexchange, Windows communicationstandard) are used for communicationbetween Commuwin II and measuringtransmitters. One DDE server (driver)per communication channel isavailable.Depending on the application, eitherthe serial interface built into thepersonal computer or a specialinterface (card to be plugged into thePC) is used. The Commubox servesas the required interface modulebetween the HART® interface andthe serial PC interface.
Junction box VBMJunction box for extension ofmeasuring cable connectionbetween measuring cell andinstrument.Protection type: IP 65.Order no. 50003987
Junction box VBM-ExJunction box for extension ofmeasuring cable connectionbetween measuring cell andinstrument in Ex zone 1.Protection type: IP 65.Order no. 50003991
Extension cable CLK 5For inductive measuring cells. Foruse with junction box type VBM.Order no. 50085473
Calibration solutionsPrecision solutions referred to SRMby NIST; error limit 0.5%, referencetemperature 25 °C; quantity 500 ml.See Technical Information CLY 11,order no. 50086574.
Type Conductivity 1 Order no.
CLY 11-A 74.0 µS/cm 50081902
CLY 11-B 149.6 µS/cm 50081903
CLY 11-C 1.406 mS/cm 50081904
CLY 11-D 12.64 mS/cm 50081905
CLY 11-E 107.00 mS/cm 50081906
1 Values may deviate due to manufacturingtolerances. The error limit refers to the valuespecified on the bottle.
Endress+Hauser GmbH+Co.- Instruments International -
P.O. Box 2222D-79574 Weil am Rhein
Tel. (07621) 975 - 02Fax (07621) 975345
TI 195C/07/en/07.99Printed in Germany / DT / CV5 (51500053)