Ultra Pure Water (UPW) Tester (HI98309) - Hanna Instruments

The Hanna Instruments HI98309 is a specialized, high-precision pocket tester designed specifically for monitoring the purity of deionized, distilled, and ultra-pure water. As the first pure water tester to measure in 1/1000ths of micro-Siemens (µS), it provides rapid, on-the-spot detection of minute traces of contamination, ensuring the high quality of finished products in critical industrial processes.

Precision for Critical Environments

Ideal for the electronics, semiconductor, and pharmaceutical industries, the HI98309 UPW Tester allows users to check water purity with laboratory-grade resolution. Its amperometric graphite electrode reduces polarization effects and provides superior repeatability, as graphite does not oxidize like traditional steel probes.

Key Features

• Ultra-Low Range Accuracy: Delivers accurate readings in the ultra-low range of 0.000 to 1.999 µS/cm with an incredible resolution of 0.001 µS/cm.
• Factory Calibrated: Arrives ready for immediate use. Because calibration solutions in the UPW range (below 2 µS/cm) are highly unstable, each unit is factory-calibrated with freshly prepared solutions.
• Rapid Thermal Response: Features an exposed temperature sensor that allows for fast and automatic compensation for temperature changes, ensuring consistent readings even in fluctuating environments.
• Rugged & Ergonomic Design: Housed in a durable casing that offers excellent protection against harsh industrial settings. The large LCD and ergonomic shape make it easy to handle and read.
• Battery Error Prevention System (BEPS): Automatically shuts off the meter if the battery level is too low to obtain an accurate reading, preventing false data.

Technical Specifications