The MC9200 Series Controller is a microprocessor based controller of recirculating cooling water systems. The MC9200 accurately controls the level of dissolved solids based on µS/cm, and depending on model selection, control conductivity and pH.

Controller also provides:

One user selectable chemical feed timer and up to two 28-day event timers
Lockable viewing window
Two point calibration
Dry contact water meter input capability
Alarm powered & dry contact relays
Optional 4-20mA output capability
Alarm LED, relay or optional callback status
2x16 alphanumeric display
Convenient keypad menu access, display contrast adjustment and HOA access control
Self charging capacitor to maintain time and history for up to two weeks in the event of a power loss to controller
Relay, general alarm, flow alarm and power status LED's
DIN connections for conductivity sensor and I/O
Prewired incoming power and relay output connections on specified models (receptacle cords)
Modular flow assembly with flow switch, quick release sensors and sample port mounted on the polyethylene panel
Optional remote communications capability via direct serial line or modem connection

Control Functions

All continuously monitored sensor input functions (conductivity, pH) will provide user definable set points for maintaining a specific value within the system. Each set point will have a user definable differential as the control band, programmable high and low alarm points and user defined limit timer for pH.

Chemical Feed Timer

The chemical feed timer shall be user selectable as any one of the following:

Percent - User will be able to select a percent "ON" time of a user defined "cycle" time.
Limit - Timer will run as controller bleeds until a user programmed "limit" time is met or the bleed is satisfied.
Percent of Post-Bleed - Timer will run for a user defined percentage of the bleed time after bleed is satisfied.
Pulse Timer - Timer initiated from dry contacting head water meter. User can define timer run time, water meter input and contact accumulation before timer initiation.

Remote Communications

The controller shall have the optional capability of serial communications using PULSAworks software. The serial communications can occur either by direct RS232 port, or remotely via an optional internal modem. PULSAworks allows the user to access real-time system values and download data history files and save files to disk. History files may be viewed and printed in table or graph form, the graph form can be user customized. The optional internal modem allows the controller to perform alarm call back for alarm condition notification to a pager or computer running PULSAworks software.