Waterproof conductivity meter USP 645

HI98192 waterproof professional conductivity meter — designed for demanding environments such as brewing, quality control, laboratories, purified water and pharmaceutical applications. Compliant with USP 645, it delivers laboratory‑grade accuracy in a portable format, with an extended range from 0.000 µS/cm to 400 mS/cm. Its HI763133 4‑ring platinum probe ensures stable, reliable and reproducible measurements, even on challenging samples.

Why choose this product?

• Multiparameter measurements: conductivity, TDS, resistivity, salinity and temperature.
• USP <645> compliance for purified water and injectable preparations.
• 5‑point calibration with 7 stored standards for maximum accuracy.

Technical specifications

• EC range: 0.001–9.999 µS/cm; 10.00–99.99 µS/cm; 100.0–999.9 µS/cm; 1.000–9.999 mS/cm; 10.00–99.99 mS/cm; 100.0–1000.0 mS/cm
• EC resolution: 0.001 µS/cm; 0.01 µS/cm; 0.1 µS/cm; 0.001 mS/cm; 0.01 mS/cm; 0.1 mS/cm
• EC accuracy: ±1% of reading
• TDS range: 0.00–99.99 mg/L; 100.0–999.9 mg/L; 1.000–9.999 g/L; 10.00–99.99 g/L; 100.0–400.0 g/L
• Resistivity range: 1.0 Ω·cm to 100.0 MΩ·cm
• Salinity: % NaCl (0.0–400.0%), PSU (0.00–42.00), seawater (0.00–80.00 ppt)
• Temperature: -20.0 to 120.0 °C; resolution 0.1 °C; accuracy ±0.2 °C
• Temperature compensation: linear, non‑linear (ISO/DIN 7888) or disabled
• Reference temperature: 15 °C, 20 °C or 25 °C
• Temperature coefficient: 0.00–10.00%/°C
• TDS factor: 0.40–1.00
• Probe included: HI763133 4‑ring platinum, built‑in temperature sensor, 1.5 m cable
• Memory: 400 manual readings, 1000 automatic
• PC interface: opto‑isolated USB
• Power: 4 × AA batteries; battery life 100 h (25 h with backlight)
• Protection rating: IP67
• Dimensions: 185 × 93 × 35.2 mm; weight 400 g
• Includes: 1413 µS/cm & 111.8 mS/cm calibration solutions, two 100 mL beakers, Windows® software, USB cable, carrying case

Product FAQ

• Is this meter suitable for brewery production?
  Yes, its 4‑ring platinum probe ensures excellent stability even in complex matrices.
• Can it measure brewing water salinity?
  Yes, using % NaCl, PSU or seawater modes.
• Is the probe replaceable?
  Yes, the HI763133 is interchangeable and automatically recognized.