Endress+Hauser CYM290 Specifications
TI01198C/07/EN/03.16
71326008
Products
Solutions Services
Technical Information
Liquiline To Go CYM290 and
Liquiline To Go Ex CYM291
Portable multiparameter device for Memosens
pH, conductivity and oxygen sensors.
Measuring device for hazardous and non-hazardous areas
Application
Liquiline To Go is a portable multiparameter handheld for pH,
ORP, conductivity and oxygen measurement. The outstanding
features of the device include:
• Operation in hazardous areas to Zone 0 (CYM291)
• Use of digital Memosens sensors
• The robust, high-performance polymer housing stands for
excellent shock resistance and dimensional stability even
with intensive impact from moisture.
Your benefits
Reliability and flexibility
• Easy commissioning
• Memosens: plug & play lab-calibrated sensors
• Waterproof and robust housing with IP66/67 protection
Safety
• Active indication of cable disconnect
• CYM291 Ex Approvals: IECEx, ATEX
Liquiline To Go CYM290 and Liquiline To Go Ex CYM291
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Function and system design
Liquiline To Go CYM290 and Liquiline To Go Ex CYM291 are portable multiparameter measuring
devices for the use of analog (CYM290 only) and digital sensors.
The device automatically detects when a Memosens sensor is connected and switches to the
appropriate measured variable. By simply plugging in a new Memosens sensor, the device can
measure conductivity, the pH value and oxygen.
Operation is simple and intuitive, and supported by info text and help.
Liquiline To Go CYM290
QVGA TFT illuminated display
Liquiline To Go Ex CYM291
LCD STN 7-segment display with 3 lines and icons
A0024765
1 Liquiline To Go functions
1 Connections
2 Display
3 Keypad
4 Holder for pH sensors
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Liquiline To Go CYM290 and Liquiline To Go Ex CYM291
Communication and data processing
Liquiline To Go CYM290 and CYM291 automatically detects when a Memosens sensor is connected
and switches to the appropriate measured variable. Memosens is indicated on the display. Only one
sensor can be connected to the measuring device at the time. Liquiline To Go CYM290 has a pHsocket according to DIN 19262 for analog pH sensors.
Dependability
Reliability
Maintainability
Integrity
Memosens technology digitizes the measured values in the sensor and transmits the data to the
transmitter using a non-contact connection that is free from potential interference. The result:
• Automatic error message if sensor fails or connection between sensor and transmitter is
interrupted
• Immediate error detection increases measuring point availability
Easy handling
Sensors with Memosens technology have an integrated electronics unit that stores calibration data
and other information (e.g. total operating hours and operating hours under extreme measuring
conditions). Once the sensor has been connected, the sensor data are transferred automatically to
the transmitter and used to calculate the current measured value. As the calibration data are stored
in the sensor, the sensor can be calibrated and adjusted independently of the measuring point. The
result:
• Easy calibration in the measuring lab under optimum external conditions increases the quality of
the calibration.
• Pre-calibrated sensors can be replaced quickly and easily, resulting in a dramatic increase in the
availability of the measuring point .
• Maintenance intervals can be defined based on all stored sensor load and calibration data and
predictive maintenance is possible.
• The sensor history can be documented on external data carriers and in evaluation programs. Thus,
the current application of the sensors can be made to depend on their previous history.
With inductive transmission of the measured value using a non-contact connection, Memosens
guarantees maximum process safety and offers the following benefits:
• All problems caused by moisture are eliminated.
– Plug-in connection remains free from corrosion
– Measured value distortion from moisture is not possible.
– The plug-in system can even be connected under water.
• The transmitter is galvanically decoupled from the medium.
• EMC safety is guaranteed by screening measures for the digital transmission of measured values.
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Input
Liquiline To Go CYM290 and Liquiline To Go Ex CYM291
Measured variables
Measuring range
Types of input
→ Documentation of the connected sensor
→ Documentation of the connected sensor
Connections
From right to left
• 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
A0024762
2 CYM290 connections
Temperature inputs
Sensor inputs
3 CYM291 connections
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
123
< 0.2 K (Tamb = 23 °C); TK < 25 ppm/K
1) according to DIN EN 60746-1, at rated operating conditions
2) ± 1 digit
3) plus sensor error
Cable specification
M8 socket, 4-pin, for Memosens laboratory cable CYK20
A0024763
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Liquiline To Go CYM290 and Liquiline To Go Ex CYM291
Power supply
Supply voltage
Repeatability
Options
• Batteries: 4x AA (Mignon) alkaline or 4x NiMH rechargeable batteries
• Service time of up to 500 h
Performance characteristics
→ Documentation of the connected sensor
Setting up the device
Protective cover
The front of the device is protected by a cover. To operate the device, the
protective cover can be folded back completely and locked in place.
Hook
A fold-out hook is located on the back of the device, allowing you to
suspend it. This means your hands are free for the actual measurement.
The nameplate is located under the hook.
Stand
A0024707
The protective cover and hook can be joined to form a stand, allowing the
convenient and ergonomic operation of the device in the lab or on a
desktop.
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