The LF 296 by WTW is a versatile and precise conductivity meter designed for industrial applications. It offers a wide measurement range, accurate temperature compensation, and configurable output settings. With robust glass fiber-reinforced housing, programmable relays, and user-friendly calibration, the LF 296 ensures reliable and flexible monitoring in challenging environments.
ATTENTION: WTW LF296 Quadroline Conductivity Meter sold with TetraCon 700 Probe
The LF 296 by WTW is a highly accurate and adaptable conductivity meter engineered for diverse industrial applications. This device delivers precise conductivity measurements across a wide range, supported by advanced features such as temperature compensation, multiple measurement modes, and user-adjustable settings. Whether monitoring water quality or ensuring process stability, the LF 296 provides the accuracy and durability required in demanding environments.
Designed with a rugged housing made of glass fiber-reinforced PPE/PS, the LF 296 is built to withstand harsh industrial conditions. The front of the unit offers IP54 protection, safeguarding against dust and water splashes. Weighing approximately 1.1 kg, the LF 296 is lightweight yet robust, making it suitable for a variety of installation settings. The unit can operate in temperatures ranging from -25°C to +55°C (-13°F to +131°F), with storage capability up to +65°C (149°F), ensuring reliable performance across different climates and conditions.
The LF 296 supports a range of power inputs, including 230 VAC, 115 VAC, 24 VAC, and 24 VDC, making it compatible with various power setups. Its energy-efficient design has a maximum power consumption of just 18W, further enhancing its suitability for industrial use. Additionally, the device is equipped with screwless plug-in connections for easy sensor and other connections setup, accommodating wire sizes from 0.5 to 2.5 mm².
A key feature of the LF 296 is its versatile measurement capabilities. It can be connected to either two-electrode or four-electrode measuring cells, allowing for flexibility depending on the application requirements. The conductivity measurement range is adjustable, spanning from ultra-low values of 0.000 µS/cm to high levels of 1000 mS/cm, with automatic range selection available. The resolution adjusts based on the range, providing accurate readings down to 0.001 µS/cm in the lower ranges. With an accuracy of 0.5% of the measured value ± 1 digit, the LF 296 ensures reliable data for process monitoring.
Temperature compensation is another highlight of the LF 296, with an integrated NTC sensor enabling precise temperature measurement from 0.0°C to 130.0°C, with a resolution of 0.1 K and accuracy within 0.2 K ± 1 digit. Users can manually adjust the temperature measurement to match reference values, and the unit supports both linear and nonlinear compensation for temperature effects on conductivity, adhering to standards such as DIN EN 27888 / ISO 7888.
The LF 296 also facilitates salinity measurement, with a range of 0.0 to 70.0 Sal and a resolution of 0.1 Sal, referenced to a temperature of 20°C. This feature is particularly useful in water quality monitoring applications where salinity variations must be tracked precisely.
User convenience is enhanced through a straightforward calibration process, allowing for quick checking and adjustment of the cell constant using a standard 0.01 molar potassium chloride solution. The permissible range for the cell constant adjustment is from 0.090 to 1.500 cm⁻¹.
Programmable relays (K1 and K2) add to the LF 296’s versatility, enabling it to act as a signaling device for various conditions such as power supply failure, "frozen" output detection, or limit monitoring. The relays can also be configured for timer-based switching, with adjustable behavior to suit specific monitoring needs. Relay contacts are galvanically isolated, supporting switching voltages up to 250 V AC or 30 V DC, and handling current up to 5 A.
With its broad range of features and robust construction, the LF 296 by WTW is ideal for applications requiring precise conductivity and temperature monitoring in industrial environments, water treatment facilities, and research labs.
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