Memosens CLS16E

Summary

Product identification

• Product Name: Memosens CLS16E
• Product Type: Digital conductivity sensor with Memosens technology
• Document ID: TI01527C/07/EN/03.24-00
• Version: 71649265, dated 2024-03-31

Application

Measurements in pure and ultrapure water, including:

• Ion exchanger monitoring
• Reverse osmosis
• Distillation
• Electrodeionization
• WFI (water for injection) in the pharmaceutical industry

Sensors with temperature probes are used with conductivity measuring devices supporting automatic temperature compensation, such as:

• Liquiline CM442/CM444/CM448
• Liquiline CM42
• Liquiline CM14

Transmitters can also measure resistivity in MΩ · cm.

Features and Benefits

• High measuring accuracy due to individually measured cell constant.
• Manufacturer inspection certificate with individual cell constant.
• Hygienic process connections for pipe or flow vessel installation.
• Easy to clean with electropolished surfaces.
• Sterilizable up to 150 °C (302 °F).
• Material: Stainless steel 1.4435 (AISI 316L).
• Certifications: EHEDG Document 8.
• Optional: USP 87, USP 88 Class VI certificate, EN 10204 3.1 inspection certificate.

Memosens Technology Advantages:

• Maximum process safety.
• Data security via digital data transmission.
• Easy to use with sensor data saved in the sensor.
• Recording of sensor load data for predictive maintenance.

Input

• Measured Variables: Conductivity, Temperature
• Measuring Ranges:
  • Conductivity: 40 nS/cm to 500 µS/cm (in relation to water at 25 °C (77 °F))
  • Temperature: -5 to 150 °C (23 to 302 °F)
• Cell constant: k = 0.1 cm⁻¹
• Temperature compensation: Pt1000 (Class A according to IEC 60751)

Performance Characteristics

• Measurement uncertainty (Cell constant): 1.0 %
• Response time:
  • Conductivity (t<0xE2><0x82><0x95>): ≤ 2 s
  • Temperature (t<0xE2><0x82><0x99>): ≤ 9 s (1)
• Measurement error:
  • Conductivity: ≤ 2 % of reading (in specified measuring range)
  • Temperature: ≤ 0.5 K (in measuring range -5 to 120 °C); ≤ 1.0 K (in measuring range 120 to 150 °C)
• Repeatability:
  • Conductivity: ≤ 0.2 % of reading (in specified measuring range)
  • Temperature: ≤ 0.05 K

(1) DIN VDI/VDE 3522-2 (0.3 m/s laminar)

Environment

• Ambient temperature: -20 to 60 °C (–4 to 140 °F)
• Storage temperature: -25 to +80 °C (-10 to +180 °F)
• Degree of protection: IP 68 / NEMA type 6P (1 m water column, 25 °C, 24 h)

Process

• Process temperature:
  • Normal operation: -5 to 120 °C (23 to 248 °F)
  • Sterilization (max. 45 min): Max. 150 °C (302 °F) at 6 bar (87 psi) absolute
• Pressure:
  • 13 bar (188 psi) absolute, at 20 °C (68 °F)
  • 9 bar (130 psi) absolute, at 120 °C (248 °F)
  • 0.1 bar (1.5 psi) absolute (vacuum), at 20 °C (68 °F)

Mechanical Construction

• Design:
  • Memosens plug-in head
  • Process connection: Electropolished stainless steel 1.4435 (AISI 316L) (Clamp, Varivent, BioControl)
  • Coaxial measuring electrode: Electropolished stainless steel 1.4435 (AISI 316L)
• Dimensions: Refer to diagrams for specific versions (Clamp ISO2852, BioControl, Varivent).
• Weight: Approx. 0.13 to 0.75 kg (0.29 to 1.65 lbs) depending on version.
• Materials (in contact with medium):
  • Sensor: Electropolished stainless steel 1.4435 (AISI 316L) or PEEK.
  • Seal: Molded seal FFKM or Molded seal EPDM.
• Process connection: 1½", 2" (ISO 2852, suitable for TRI-CLAMP, DIN 32676), Tuchenhagen VARIVENT N DN 50 to 125, NEUMO BioControl D50.
• Surface roughness: Ra ≤ 0.38 μm, electropolished.

Certificates and Approvals

• Ex approvals: Various ATEX, CSA, EAC, NEPSI certifications listed by model suffix (e.g., CLS16E-BA, CLS16E-CI).
• Hygienic compatibility: EHEDG Type EL Class I, Regulation (EC) No. 1935/2004, FDA compliant, GB4806.1-2016.
• Pharmaceutical compatibility: cGMP requirements, USP 87, USP 88 Class VI, TSE-/BSE-free, ASME BPE compliant.
• CRN approval: Registered in all Canadian provinces according to CSA B51.
• Test reports: Manufacturer's certificate (cell constant), Surface roughness test, EN 10204 3.1 (optional).
• External standards: EAC certified.

Accessories

• Measuring cable: Memosens data cable CYK10, CYK11.
• Sensor regeneration: Factory service for seal replacement and recalibration.
• Calibration solutions: Conductivity calibration solutions CLY11 (e.g., CLY11-A 74 μS/cm).
• Calibration set: Conducal CLY421 for ultrapure water.

---

Disclaimer: This extraction may miss figures, footnotes, or revisions. Contractual data must match the OEM PDF revision used on the project.

Official datasheet (PDF)

Lenntech datasheet mirror