Metex 2200C Conductivity Analyzer/Controller - Manual (Page 9)

Model 2200C Page 7
4.1 Overview
4.1.1 The Model 2200C is a microprocessor based conductivity analyzer designed for
industrial applications. It is compatible with AquaMetrix’s MS and MC conductivity
cells and offers several measurement ranges. The unit's software makes
maintenance and operation easy.
4.1.2 The outputs include voltage-free relay contacts and industry standard analog
transmission signals. Two programmable relays are provided for process control
and alarm. The status of each relay is indicated on the front by a LED. The analog
output signals transmit low power signals to peripherals such as data recorders or
control systems.
4.1.3 The software is designed for ease of operation. It uses a simple menu with all items
indicated on the panel. The user interface consists of six buttons on the front panel.
The buttons are scanned and responded continuously. In addition, an extensive
system checking for values and parameters is performed by the software. All of the
operating parameters are stored in non-volatile memory, without the need of a
battery.
4.1.4 The Model 2200C operates like a normal analog converter with a number of
additional functions made possible by the microprocessor in the instrument.
Some of these are:
• Recall and easy adjustment of relay and output parameters
• Push button calibration
• A HOLD function for outputs
• Continuous sensor check during measurement
• Continuous self check and watch-dog timer to ensure correct operation
• Password protection of stored values
• Temperature Output