What does it mean if my Pulsafeeder Controller displays "Bleed Limit" alarm message?
If your Pulsafeeder Controller displays a "Bleed Limit" alarm, the conductivity limit timer may be set too short, so adjust the limit timer. There may also be a bleed valve or drain failure, so clear any obstruction around the drain.
What does it mean if my Pulsafeeder MicroVision Controller displays "Clock Err" alarm message?
If your Pulsafeeder Controller displays the "Clock Err" alarm message, this indicates an internal controller clock failure, requiring you to replace the controller.
What does it mean if my Pulsafeeder MicroVision displays "Watchdog" alarm message?
If your Pulsafeeder Controller displays the "Watchdog" alarm message, this indicates an internal controller failure, requiring you to replace the controller.
Why doesn't the conductivity reading on my Pulsafeeder MicroVision match my portable hand-held reading?
Due to variations in hand-held meters, conductivity standard solutions, temperature compensation, and the controller’s accuracy of +/- 2% of scale, the reading on the controller may not match that of your hand-held tester exactly.
General| Type | Microprocessor-based controller |
|---|---|
| Power | 100-240 VAC, 50/60 Hz |
| Enclosure Rating | NEMA 4X |
| Operating Temperature | -10°C to 50°C |
| Communication | RS-485 Modbus |
| Control | PID |
| Inputs | 4-20 mA, Pulse |
| Outputs | 4-20 mA, Relay |
| Display | Backlit LCD |
| Memory | Non-volatile |
Explains the toroidal probe used for conductivity measurement and its working principle.
Details the control of four HOA output relays and their LED status indicators.
Describes the use of three onboard dry contact inputs for drum level monitoring.
Explains the dry contact flow switch input and its function to deactivate output relays.
Instructions for connecting and configuring the 4-20mA output for external equipment.
Details the dedicated water meter input for reading dry contact or Hall effect types.
Information on the dedicated dry contact relay for interfacing with alarm reporting equipment.
Step-by-step guide on how to safely open the controller's enclosure for access.
Recommendations for selecting an appropriate mounting location for the controller.
Guidance on selecting suitable mounting hardware for panel mounts and recommendations.
Instructions for installing the temperature compensated toroidal conductivity sensor.
Details on correctly installing the flow switch in a vertical position for accurate readings.
Diagram illustrating a typical installation setup of the MicroVision controller and connected components.
Diagrams and descriptions for connecting motorized ball valves and pumps to the relay board.
Instructions for wiring high voltage connections in conduit models, emphasizing safety.
Details on making low voltage connections for flow switch, drum levels, and water meter.
How to connect the flow switch input to make outputs inoperative when the cooling tower is shut down.
Instructions for connecting the toroidal conductivity sensor wires to the controller.
Guidance on connecting the water meter input to the top board.
Details on connecting drum level inputs to the top board via J10.
Instructions for connecting 4-20mA equipment to J8 for output.
Using J5 to connect alarm reporting equipment and its relay function.
Explanation of how to use the UP/DOWN and soft keys for navigation and input.
Visual representation of the controller's menu hierarchy and navigation paths.
Guide on using the front panel buttons to navigate through menus and change parameters.
Description of the home screen display during normal operation and alarm conditions.
Explanation of the main menu as the starting point for accessing Configure and Settings menus.
Details on viewing real-time data, output times, and last error on the status screen.
Overview of options available within the Configure menu for system setup.
How to set the current date, time, and choose date/time display formats.
Manually controlling the four output relays for servicing or troubleshooting purposes.
Configuring water meter type, units, and viewing/resetting the totalizer.
Selecting the desired language for the controller's display interface.
Setting the controller's response to low drum level indications for pump control.
Adjusting the display update frequency and dampening controller response to conductivity changes.
Choosing the direction (rising or falling) for the conductivity setpoint control.
Adjusting the contrast of the display screen for optimal clarity and readability.
Setting a user password to secure access to configuration and settings menus.
Viewing real-time control inputs to diagnose sensor and controller operational issues.
Displaying the current software version running on the MicroVision controller.
Procedure to reset all controller parameters back to their original factory default values.
Accessing parameters for conductivity, inhibitor feed, and biocide feed control.
Configuring bleed control, inhibitor feed, probe calibration, and alarm setpoints.
Parameters for controlling the inhibitor chemical feed output.
Selecting the operating mode for inhibitor feed: Pulse Timer, Limit Timer, Cycle Timer, or % Post Blowdown.
Configuring inhibitor feeding based on water meter input accumulation in Pulse Timer mode.
Setting inhibitor feed based on a percentage of the blowdown cycle time.
Configuring how the inhibitor feed interacts with biocide feed cycles (Skip, Pause, None).
Configuring biocide feed frequency, duration, pre-bleed, and lockout functions.
Setting specific days and weeks for biocide feed timers.
Method for calibrating the probe while it's installed in the process flow.
Method for calibrating the probe using a standard solution before installation.
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