The HI 8614 is a water-resistant pH transmitter designed with a high impedance input to accept signals directly from a pH electrode. The signal is then processed by a special high-impedance amplifier which transmits an output current directly proportional to the input signal but independent of changes in load or cable capacitance.
Calibration is performed by adjustment of two independent trimmers for slope and offset.
Temperature compensation is performed by the transmitter's ATC circuitry when measurements are taken with a temperature probe attached, it is also possible to substitute a fixed resistor for the temperature probe, if ATC is not required. HI 8614L allows easy verification and monitoring of measured values, and is easier to calibrate and maintain. Inc. All Rights Reserved.