Water Monitoring System
Ver.5.0.1 – Revision August 2022 Page 25 of 111
High reference: A fixed value determined by the range of flow sensor.
Low Raw: A fixed value.
High Raw: A fixed value.
Warning limit: A warning set point. The warning will be triggered if the flow drops below
this set point. The setting can be adjusted if needed.
Alarm limit: An alarm set point. The alarm will be triggered if the flow drops below this
set point. This will stop the pump or close the valve. Please note that the flow alarm acts
as a dry run protection for the pump. The setting can be adjusted if needed.
4.2.2 Alarms
GENERAL NOTE
Alarms are given for general sensor errors, low flow, communication errors and memory
status. The alarms are displayed in a log showing active alarms and the alarm history. Use
the active alarm button or alarm history button for detailed diagnostic.
Figure 4-15: Alarm Page
G6111 PAH
Warnings/Alarms are given for:
• General sensor error
• Light source end of life
• Factory calibration validity expired.
4.2.3 External Communication Watchdog
The external communication check button is normally disabled upon delivery. The external
communication check watchdog function can be activated if clients wish to make use of
this functionality, it checks the communication line between the water monitoring system
and the client data handling system. Please refer to the section “WM communication
protocol” in the Installation Manual.
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