- Reverse Osmosis Systems
- Deionisation Systems
- Boiler Feed Water
- Return Condensate
- Pharmaceutical Water
- Semiconductor Water
- Desalination Systems

Q45C2 2E Resistivity Transmitter
ATi’s 2-Electrode Resistivity Transmitter provides the reliable and accurate low-level measurements required for high-purity water systems.
Specifically designed for use in ultra-pure water and non-fouling applications, ATi’s Q45C2 2E Resistivity Transmitter provides reliable and accurate low-level measurements for high-purity water systems.
The 2-Electrode sensors are available in several mounting configurations, including 316SS compression fittings or sanitary-style. For applications where results in resistivity units are preferred, the Q45C2 2E can be programmed to display readings in Meg-ohm units instead of microSiemens. The transmitter employs 2-Electrode conductivity sensors with low cell constants to provide continuous water quality measurements from 0-20 to 0-2,000 microSiemens. These sensors may also be mounted submersion-style or in a hot-tap configuration.
Features & specification
- Display in conductivity or resistivity units
- Loop-powered or battery-operation
- External 5-17 VDC version for solar power applications
- Accepts 0.05, 0.5, or 1.0K cell constant sensors
- Titanium or 316ss electrodes for corrosion resistance
- Submersion, In-line, or sanitary-style sensors
- Large, easy-to-read LCD display
- Total dissolved solids (TDS) on the secondary display
- Clear, menu-driven user interface
- NEMA 4X (IP-66) enclosure
- Wall or pipe mounting bracket standard
- Built-in PID controller
Key benefits
- Reliable and accurate low-level measurements
- Multiple sensor options
- LCD second display line for temperature or operational information