Hanna, HI7630-4800, 4-ring conductivity, platinum on glass, process smart probe

Works with Universal Process Controllers (HI510 and HI520)
HI7630-48 is a conductivity and temperature probe designed to be paired with the HI510 or HI520 Universal Process Controller.
The probe is recommended for a wide range of water applications, from pure and ultrapure water. Four-ring probes provide stable measurements over a wide measure range and do not require frequent calibrations.
An integral temperature sensor measures the process temperature and adjusts the measured conductivity to a reference temperature by applying specialized compensation standards:
Linear: appropriate when it is assumed that the temperature coefficient of variation has the same value for all measurement temperatures.
Standard: appropriate for high-purity water measurements and documented in ASTM Standard D5391-14. This setting should be used for resistivity measurements.
Natural: appropriate for natural ground, well, or surface water (or water with similar composition) in accordance with ISO7888 standard.