Liquiline To Go CYM292-Ex-CYM291

Summary

Product Identification

The Liquiline To Go is a portable multiparameter handheld device for pH, ORP, conductivity, and oxygen measurements. It is available in two models:

• CYM290: For use in non-hazardous areas. Features a QVGA TFT illuminated display. Can use analog and digital (Memosens) sensors.
• CYM291: For use in hazardous areas (Zone 0) with Ex approvals (IECEx, ATEX). Features an LCD STN 7-segment display with 3 lines and icons. Can use digital (Memosens) sensors.

Key Features

• Operation in hazardous areas to Zone 0 (CYM291)
• Use of digital Memosens sensors
• Robust, high-performance polymer housing with excellent shock resistance and dimensional stability
• Waterproof and robust housing with IP66/67 protection
• Active indication of cable disconnect
• Memosens technology for plug & play lab-calibrated sensors
• Automatic detection of connected Memosens sensor and switching to the appropriate measured variable.
• Simple and intuitive operation with info text and help.

Memosens Technology Benefits

• Reliability: Digital measured values transmitted using a non-contact connection free from potential interference. Automatic error messages for sensor failure or connection interruption.
• Maintainability: Sensors store calibration data and operating history. Pre-calibrated sensors can be quickly replaced. Maintenance intervals can be predicted. Sensor history can be documented.
• Integrity: Eliminates problems caused by moisture. Plug-in connection remains free from corrosion. Measured value distortion from moisture is not possible. The plug-in system can be connected under water. Transmitter is galvanically decoupled from the medium. EMC safety is guaranteed.

Connections

• 1x micro USB-B for battery-free operation
• 1x M8 socket, 4-pin, for Memosens laboratory cable
• 2x socket, Ø 4 mm, for separate temperature sensor
• 1x socket:
  • CYM290: DIN 19 262 for analog pH sensors
  • CYM291: M12 8-pin Memosens cable

Temperature Inputs

• 2 x Ø 4 mm for integrated or separate temperature sensor
• Measuring ranges:
  • Temperature sensor NTC30: -20 to +120 °C (-4 to 248 °F)
  • Temperature sensor Pt1000: -40 to +250 °C (-40 to 482 °F)
• Measuring cycle: Approx. 1s
• Measured error: < 0.2 K (Tamb = 23°C); TK < 25 ppm/K

Power Supply

• Batteries: 4x AA (Mignon) alkaline or 4x NiMH rechargeable batteries
• Service time: Up to 500 h

Environmental Limits

• Ambient temperature range:
  • CYM290: -10 to +55 °C (+14 to +130 °F)
  • CYM291:
    • -10 to +40 °C (+14 to +104 °F) T3 Duracell MN1500
    • -10 to +50 °C (+14 to +122 °F) T4 Energizer E91, Power One 4106 and Panasonic Pro Power LR6
• Storage temperature: -25 to +70 °C (-13 to +158 °F)
• Degree of protection: IP66/67 with pressure compensation
• Electromagnetic compatibility: DIN EN 61326-1 (general requirements), DIN EN 61326-2-3 (special requirements for transmitters)
  • Interference emission: Class B (residential environments)
  • Interference immunity: Class A (industrial environments)
• Relative humidity: 0 to 95 %, condensation permitted for short periods

Mechanical Construction

• Dimensions: Approx. 132 x 156 x 30 mm
• Weight: Approx. 500 g (1.1 lbs)
• Materials: PA12 GF30 (silver-gray RAL 7001) + TPE (black)

Operability

• Operating concept: Clear menu navigation with graphic symbols and detailed plain-text operating instructions.
• Languages: German, English, French, Spanish, Italian, Portuguese, Russian
• Displayable data: Manufacturer, sensor type, serial number, zero point, slope, date of calibration.
• Status indicators: For battery charge state, data logger.
• Keypad: [on/off ], [meas], [enter], 2 soft keys with context-dependent functions.
• Software Messages: Displays all pending error and device messages with complementary help text.
• MemoLog (Memosens only): Displays saved calibration protocols.

Certificates and Approvals

• Ex approval:
  • IECEx Ex ia IIC T4/T3 Ga
  • ATEX II 1 G Ex ia IIC T4/T3 Ga

Scope of Delivery

• Measuring device including 4 batteries (AA) and pre-mounted holder
• Carry strap
• Data storage medium with detailed operating instructions
• USB cable, 1.5 m
• Safety instructions
• Brief Operating Instructions in multiple languages

Accessories

• Carrying case
• Adapter sleeves
• Sensor holder / Watering cap
• Memosens laboratory cables (CYK20) for digital sensors

Related Sensors and Solutions

The document lists a wide range of compatible sensors, including:

• pH electrodes (e.g., Orbisint CPS11D, Memosens CPS16D, Tophit CPS441D)
• ORP sensors (e.g., Orbisint CPS12D, Memosens CPS16D, Ceraliquid CPS42D)
• Conductivity sensors (e.g., Condumax CLS15D, CLS16D, CLS21D)
• Oxygen sensors (e.g., Oxymax COS22D)

It also references buffer solutions (CPY20) and conductivity calibration solutions (CLY11).

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