Specifically designed for drinking and wastewater treatment plants and swimming pool applications, the MicroChem®2 is able to measure up to three of the following parameters: pH, ORP, Dissolved Oxygen, Chlorine, Chlorine Dioxide, Bromine, Ozone, Conductivity, 4-20 mA, and Temperature (PT100). The MicroChem®2 family includes 4 groups of instruments:
ANALYZER/TRANSMITTER - The MicroChem2 is capable of accepting signal(s) from up to three sensors representing a wide variety of measurements.
SIMPLE CONTROLLER - The MicroChem2 is capable of providing on/off control using low alarms and deadband. This capability is included with the
CONTROLLER - The MicroChem2 can provide control of the measured parameter using a standard PID algorithm in conjunction with the sensor input signal, or as a PID Compound Loop controller utilizing the signal from the sensor and an optional 4-20 mA flow signal. Control output is available both as a 4-20 mA control signal and as a time proportional contact output. PID control is avaliable if the 4-20 mA output signal is used. Gain and cycle time are used if the instrument is configured to control using relay contacts. If so, 4-20 mA retransmission signal is avaliable on each configured channel. Optionally, an additional 4-20 mA output is available to retransmit the measured value if a 4-20 mA output signal is used for control.
AVERAGING (TRIPLE) CONTROLLER - The MicroChem2 receives signals from 2 to 3 identical sensors, computes the average, verifies the correct
functionality of the sensors, and applies a PID control algorithm on the averaged signal. The control output is a 4-20 mA signal. A 4-20 mA signal is also available to retransmit the average value. Applications include large tanks and DO aeration basins. This function is included with the controller software.
SWIMMING POOL CONTROLLER - The MicroChem2 receives signals from pH, ORP and/or chlorine sensors and displays the measured values. It performs specific PID algorithms on pH and chlorine or ORP. The control is performed via a 4-20 mA output signal or with relay contacts. PID control is avaliable if the 4-20 mA output signal is used. Gain and cycle time are used if the instrument is configured to control using relay contacts. If so, 4-20 mA retransmission signal is avaliable on each configured channel. The MicroChem®2 is also able to display and retransmit the sample temperature.