w/Series KC4000 - MicroChem®2

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
Analyzer/Transmitter software.

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.

• Capable of receiving inputs from up to three (3) sensors and/or 4-20 mA signals.
• Retransmits up to three (3) 4-20 mA signals.
• Measures, indicates and retransmit the sample temperature value.
• Galvanic isolation between inputs and outputs and between all the PC boards.
• Two (2) digital inputs (contacts).
• Up to seven (7) relay outputs, Contact outputs can be individually set as NO or NC via software.
• Modularity & flexibility: Additional channels are easily added and field sensors can be changed to achieve new measurements.
• Simplicity of use is also assured by message driven menus displayed in one of the following software selectable languages: English, French,
  German, Spanish and Italian.
• Alarms and deadband can be freely changed via software.
• Automatic temperature compensation.
• Password protected menus.
• Alarm and warning messages.
• Output freezing capability.
• Ability to drive a cleaning sequence for the sensor via dedicated software and relay contact outputs.
• Single point calibration procedure available for pH.
• As an Averaging Basin Controller, the instrument has the capability to calculate and retransmit the average value of three inputs, analyze
  the variation, and activate an alarm if the variation is higher than a fixed value, assuring accurate control.
• The MicroChem®2 Controller is capable of accepting a 4-20mA input signal as a Feed Forward parameter in the PID algorithm.
• Housing suitable for outdoor installations (NEMA 4, IP65 protection)
• Configuration and calibration are performed without opening the instrument cover via a membrane keypad and display.
• The MicroChem2 Swimming Pool Controller utilizes specifi c PID algorithms for pH and Chlorine/ORP.
• Self diagnostics
• Sensor sensitivity check during calibration procedure.
• Variety of Measurements; Chlorine (Free & Total, Buffered & Bufferless), pH, ORP, Dissolved Oxygen, Chlorine Dioxide, Ozone, Conductivity, 4-20 mAdc signal, Temperature, Iodine and Bromine.
• Amperometric analyzer is EPA approved for on-line chlorine residual monitoring in drinking water