Hanna Instruments HI2315 Benchtop Conductivity Meter

Hanna Instruments has released the HI2315 Benchtop Conductivity Meter. With four user-selectable measurement ranges (0.0 to 199.9 µS/cm; 0 to 1999 µS/cm; 0.00 to 19.99 mS/cm; 0.0 to 199.9 ms/cm), these meters are robust and easy to use.

Manual calibration means the user is not constrained by preset calibration points and can use any of the company’s conductivity calibration solutions provided it is within the range of the instrument. Just choose the solution with the closest value to that of the expected sample. Temperature compensation is automatic, from 0 to 50°C with β adjustable from 0 to 2.5%/°C.

The instrument uses a 4-ring potentiometric probe with platinum sensor. The probe works on the principle of induction, which eliminates the effects of polarisation. Two outer rings apply an alternating voltage and induce a current loop in the solution, while two inner rings measure the voltage drop induced by the current loop (which is dependent on the conductivity of the solution). By using this method, it is possible to measure low or high conductivity levels without the need to change probes.

The product is supplied with a HI76303 conductivity probe, 12 VDC adapter and instruction manual.