Endress+Hauser Tophit  CPS471 Technical Information

Endress+Hauser Tophit CPS471 Technical Information

Sterilizable and autoclavable isfet sensor for the ph measurement analog or digital sensors with memosens technology

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Technical Information
Tophit CPS471 and CPS471D
Sterilizable and autoclavable ISFET sensor for the pH measurement
Analog or digital sensors with Memosens technology
0
1
R
Standard Number 74-02
TI283C/07/en/04.06
51506685
Application
• Hygienic and sterile applications
• Food industry and pharmaceutical industry
• Biotechnology
With ATEX, FM and CSA approval for application in hazardous
areas
Your benefits
• Resistant to breaking
– Sensor body made completely of PEEK
– Direct installation into the process, reduces effort and costs
for sampling and laboratory analysis
• Certified biocompatibility
• Double-chamber reference system:
– poisoning resistant
– polyacrylamide free gel
• Application possible at low temperatures
– Short response time
– Constantly high accuracy
• Sterilisable and autoclavable
• Longer calibration intervals than glass electrodes
– Lower hysteresis with alternating temperatures
– Low measuring error after high-temperature loading
– Almost no acid and alkaline errors
• With built-in temperature sensor for effective temperature
compensation
• Ideal for CIP processes when combined with an automatic
retractable assembly
Further benefits offered by Memosens technology
• Maximum process safety through contactless inductive signal
transmission
• Data safety through digital data transmission
• Easy handling due to storage of sensor-specific data
• Predictive maintenance possible thanks to registration of
sensor load data

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Summary of Contents for Endress+Hauser Tophit CPS471

  • Page 1 Technical Information Tophit CPS471 and CPS471D Sterilizable and autoclavable ISFET sensor for the pH measurement Analog or digital sensors with Memosens technology Standard Number 74-02 Application • Hygienic and sterile applications • Food industry and pharmaceutical industry • Biotechnology With ATEX, FM and CSA approval for application in hazardous areas Your benefits •...
  • Page 2: Function And System Design

    Faraday constant (26.803 Ah) Offset voltage Activity of ion kind (H R ... Gas constant (8.3143 J/molK) T ... Temperature [K] Nernst factor n ... electrochemical valueability (1/mol) At 25 °C (77 °F), the Nernst factor is –59.16 mV/pH. Metal Oxide Semiconductor Endress+Hauser...
  • Page 3 The integrated reference electrode of the sensor is a double-chamber reference system with a bridge electrolyte. The benefits are an efficient and stable contact between the diaphragm and the reference lead, and the extremely long poisoning path. The bridge electrolyte is highly resistant to temperature and pressure changes. Endress+Hauser...
  • Page 4 -100 -300 -500 a0003868-de Fig. 4: Isothermic curves Isothermic curve at 8 °C (46 °F), slope –55.8 mV/pH Isothermic curve at 37 °C (99 °F), slope –61.5 mV/pH Isothermic curve at 61 °C (142 °F), slope –66.3 mV/pH Endress+Hauser...
  • Page 5 – Number of calibrations – Serial number of the transmitter used to perform the last calibration • Operational data – Date of commissioning – Hours of operation under extreme conditions – Number of sterilizations – Data for sensor monitoring. Endress+Hauser...
  • Page 6 Measuring system with Topcal S fully automatic measuring, cleaning and calibration system Tophit Control unit CPG310 Power cable Cleanfit H CPA475 Cleaner, buffer solutions Compressed air Mycom S CPM153 Steam, water, cleaner Liquids / cleaner Power supply Rinse block Endress+Hauser...
  • Page 7 In the rinse chamber of the retractable assembly the sensor is cleaned with suitable cleaning solutions. • Calibration cycles can individually be set. • Low maintenance costs due to fully automatic cleaning and calibration functions. • Measuring results are optimally reproducable and the individual value tolerances are very low due to the automatic calibration. Endress+Hauser...
  • Page 8 Immersion assembly Dipfit W CPA111 Special measuring cable CPK12 or CYK10 Transmitter Liquiline Pharmaceuticals and biotechnology a0003877 Fig. 8: Measuring system for pharmaceutical and biotechnology applications Tophit Installation assembly Unifit H CPA442 Special measuring cable CPK12 or CYK10 Transmitter Liquiline M CM42 Endress+Hauser...
  • Page 9: Power Supply

    Liquiline M CM42, Mycom S CPM153 or Liquisys M CPM223/253-IS). A transmitter with only a standard pH input is inappropriate. Electrical connection The sensor is electrically connected to the transmitter by means of the special measuring cable CYK10. CPS471D a0003350 Special measuring cable CYK10 Endress+Hauser...
  • Page 10: Performance Characteristics

    • Make sure you comply with the instructions in the operating instructions for the assembly used. The sensor is delivered without air cushions. Air cushion formation is possible in case of working with vacuum, e.g. cleaning out of tanks. Endress+Hauser...
  • Page 11 When installing the sensor in an assembly, use the engraved serial number on the connection head for correct sensor orientation. The serial number is always located in the same plane as the ISFET chip and the nameplate (z-y-direction, → å 11). Endress+Hauser...
  • Page 12 2% sodium hydroxide solution at 80°C (176 °F), the sensor life span drops to approx. 10-15 hours. °C °F Restricted lifetime! ISFET application range a0003899-en Fig. 13: Temperature and pH Application at low Application range of the sensor according to the order code (see ordering information, product structure) temperatures Endress+Hauser...
  • Page 13 Danger of damage to the sensor Never use the Tophit for applications outside the given specifications! Recommended cleaning Depending on the degree of pollution: • Hot water / soap (to be preferred) • Isopropanole • Chlorine cleaner • Storing in KCl solution Endress+Hauser...
  • Page 14: Mechanical Construction

    EPDM (FDA, 3-A) Diaphragm Ceramics Process connection Pg 13.5 Surface roughness < 0.8 μm (31.5 μin) Temperature sensor Pt 1000 (class B acc. to DIN IEC 751) Plug-in head CPS471: • ESB; TOP68, rotatable CPS471D: • Memosens, rotatable Diaphragm Ceramics, sterilizable Endress+Hauser...
  • Page 15: Ordering Information

    Basic version Shaft length 120 mm (4.72 in) 225 mm (8.86 in) 360 mm (14.2 in) 425 mm (16.7 in) Additional option EPDM, hygienic version Approval ATEX II 1G EEx ia IIC T3/T4/T6 Non-hazardous location CPS471D- complete order code Endress+Hauser...
  • Page 16: Certificates And Approvals

    Sterilisability validated acc. to EHEDG test criteria (TNO Report V3640 RE) Original of report summary "At the request of Endress+Hauser Conducta, Postfach 100154, D-70826 Gerlingen, Germany the in-place cleanability of the ISFET-Sensor TopHit CPS 471 was assessed according to the test procedure of the European Hygienic Engineering &...
  • Page 17 Technical Information TI306C/07/en a0001308 a0001309 a0001310 Fig. 20: Cleanfit H CPA475 Fig. 21: Dipfit W CPA111 Fig. 22: Unifit H CPA442 Note! All the assemblies can be ordered using the product structure. Please, refer to the TI of the desired assembly. Endress+Hauser...
  • Page 18 Cable length: 20 m / 65.62 ft Cable length: 25 m / 82.03 ft ... m length ... ft length Ready-made Wire terminals CYK10- complete order code Note! Ex versions of CYK10 are indicated by an orange-red coupling end. Endress+Hauser...
  • Page 19 • IP 65 (i NEMA 4X) • Order no. 51500832 Junction box VBM • For cable extension, with 10 terminals • IP 65 / NEMA 4X • Material: aluminum • Order numbers: – cable entry Pg 13.5: 50003987 – cable entry NPT ½": 51500177 Endress+Hauser...
  • Page 20 TI283C/07/en/04.06 51506685 Printed in Germany / FM+SGML 6.0 / DT...

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Tophit cps471d

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