Portamess 913 Cond by Knick: Reliable Conductivity Measurement in the Field and Lab
The Portamess 913 Cond by Knick is an advanced, portable conductivity meter specifically designed to deliver accurate and reliable measurements in various environments, from field applications to laboratory settings. The meter is equipped with a range of advanced features that make it suitable for industries requiring strict quality control and precise data acquisition, including water treatment, environmental monitoring, and laboratory research.
The Portamess 913 Cond offers a wide range of measurement capabilities suitable for various applications. For conductivity, it covers a range from 0.01 µS/cm to 1000 mS/cm, allowing for accurate measurements on both ultra-pure water and highly concentrated solutions. Regarding temperature, the device can measure from -20.0 to +120 °C, ensuring precise temperature compensation across different environments. It is also capable of measuring salinity, with a range from 0.0 to 45.0 g/kg, making it particularly useful for seawater and other saline solutions. Lastly, the Portamess 913 Cond provides measurements of total dissolved solids (TDS) from 0 to 1999 mg/l, making it ideal for assessing water quality.
The device boasts impressive accuracy, with conductivity measurements accurate to within 0.5% of the measured value (less than 1% for values above 500 mS/cm) and temperature measurements accurate to within 0.3 K. It supports direct entry of cell constants and automatic determination using KCl solutions, allowing for precise calibration with standard or custom solutions. The adjustable cell constant (0.010 to 199.9 cm⁻¹) ensures optimal measurement accuracy across various applications.
Encased in a rugged, ergonomic PA housing, the Portamess 913 Cond is built to withstand harsh conditions. The enclosure is IP66-rated, providing protection against water and dust, while the die-cast chassis ensures resistance to impact and chemicals. The integrated sensor quiver protects the sensor during transport and is easily replaceable for convenience. The meter is lightweight (560 g with batteries), making it portable and user-friendly, even for extended use.
The built-in data logger can record up to 100 data points, which can be stored manually, at set intervals (5 seconds to 60 minutes), or event-controlled based on changes in measured values. The meter includes a real-time clock with date for accurate time-stamping of recorded data, which is essential for quality management documentation in compliance with ISO 9000 and GLP standards. Data transfer is streamlined via the RS-232C interface, which supports bidirectional communication for remote control and data logging.
Paraly® SW 109 transfer software, included with the meter, facilitates data transfer to a PC, where measurements can be stored, analyzed, and documented. The software supports exporting data to Excel and allows users to annotate measurements with relevant information (e.g., tag numbers). The meter is also compatible with lab automation software, such as labworldsoft® (Version 4.0 or higher), enabling seamless integration into automated laboratory workflows.
The Portamess 913 Cond features a large, easy-to-read LC display (67 x 67 mm) with anti-reflection glass, which is scratch-resistant and chemical-resistant. The membrane keypad is durable, easy to clean, and prevents the buildup of debris. Sensor diagnostics are supported through the Sensoface® function, which provides visual feedback on the sensor status using icons.
