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9. EVENT MANAGEMENT
BL12X
controllers have an intuitive, user-friendly events management system that allows for a quick identification of event
sources.
The signalizing is done by using STATUS and SERVICE LEDs located on the front panel.
The STATUS LED is a multicolor, red-yellow-green LED that indicates the controller status based on traffic light concept
(
Green - "OK",
The SERVICE LED indicates that service is required or the controller is in Manual mode.
All active events are easily visualized by pressing the HELP key while the controller is in view parameter screens.
The four event types managed by the controller are filtered using the setup options.
• WARNINGS (! ) - non critical event: Start-up delay active, No user calibration, power-failed, High and Low alarm warnings
(Events timeout)
• ALARMS (A
A
) - measurements have exceeded the specified High and Low limits
• PROCESS ERRORS (
• SYSTEM ERRORS - Critical errors
9.1. WARNINGS
Warning messages are triggered by non-critical events.
• No pH user calibration (calibration was cleared) - active only if "Menu\pH options\Warnings and Errors
• No ORP user calibration (calibration was cleared) - active only if "Menu\ORP options\Warnings and Errors
• pH control delayed (acid regulator is in delay after a power-on)
• ORP control delayed (Cl2 regulator is in delay after a power-on)
• Warnings High/Low pH/ORP/Temp - active if the desired alarm is enabled, the alarm level is exceeded and the set
timeout value (defined to trigger the alarm) was not exceeded. "Menu\General\Events Timeout x min"
• Overheating dosing delay (pump control is disabled due to overheating condition) active only if the pump driver
temperature is over the accepted limit
• Communication disabled (BL122, BL123)
• No connection to Hanna Cloud (BL122, BL123)
Warning Specifications
• A warning event related to pH/ORP/Temperature is evaluated only if it's enabled. It will not appear if "Event Timeout 0 min".
• The alarm relay is not controlled by warning events.
• The buzzer is not controlled by warning events.
• The warning event does not influence the dosing.
• The warnings are indicated by an "!" message displayed close to related pump icon.
• Selecting Help on measurement screens will display the active alarms.
9.2. ALARMS
Alarms are triggered by measured data exceeding configured high or low limits. Values are user selectable and can be enabled
or disabled from the parameter option Menu.
Alarm Specifications
• An alarm condition is evaluated only if that condition is enabled.
• The alarm is triggered immediately if the Events Timeout is set to 0 min. Otherwise, the alarm will be delayed as
configured and will appear as a warning until the period has expired, and then it will become an alarm.
• Alarm evaluation is done at 1 second interval after a new measurement cycle.
• The alarm is triggered if the event persists a minimum of 5 consecutive samples.
• An active alarm deenergizes the Alarm Relay, if the relay control parameter is enabled.
• If the error beep is enabled, each time an alarm is triggered, a beep will be generated.
• All alarms are logged and visible in Log RCL.
42
Yellow - "Need attention" and
) - Out of range, hold input active, remote hold active, tanks level input active
Red -"Something wrong").
"
"
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