PULSAtrol MC9300/MC9500 Series

The MC9300/9500 Series Controllers are a microprocessor based controller of recirculating cooling water systems. The controllers provide the ability to accurately control the level of dissolved solids based on µS/cm, and depending on model selection, control conductivity, pH, ORP and cycles of concentration based on the conductivity of the system make-up water.

Controller also provides:

• Up to four user selectable timers that will operate in any one of seven modes
• A manually entered data collection field with ten user defined fields and units, stored in the controller's history (downloadable with PULSAworks software)
• Four single-point drum level inputs (9500 only)
• Multiple security levels and lockable input window
• One or two point calibration
• Ability to reset relay "ON" times with date/time stamp
• Calibration date/time stamp
• Two water meter input capability (dry contact or hall effect)
• Alarm powered & dry contact relays
• Optional 4-20mA input (9500 only) and output capability
• Alarm LED, relay or optional callback status
• Eight line backlit 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
• EEPROM protection of operating parameters during extended power outages
• Relay, drum level alarm, 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, ORP) 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 the function.

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 with a fail-safe user set maximum run time.
• 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.
• 28-day Event Timer - Timer will have multiple user defined initiation times plus user defined "run" time, pre-bleed timer with conductivity minimum set point and bleed lockout time.
• Cycle Timer - User will be able to cycle chemical on and off a specified number of times during a 28 day-per-month calendar basis.
• Slave Timer - Timer will turn on its output when one or more selected relays activate. The relays can be slaved in any combination.
• Disabled - Timer can be totally deactivated.

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.