Prosense PQ Series Installation And User Manual page 28

Please select the alarm level you would like to adjust and press Enter key to see details. All
alarm details will be listed in new screen and parameters will be blinking one by one while you
set the values.
The first digit of the first alarm will start blinking to let you increase or decrease the digit via
using up and down keys. When you set the value, press again Enter key to move next digit.
The next digit will start blinking to allow you set desired value. When you complete, press
Enter key long enough. The display will show "Successful" message and return back to higher
level menu.
All alarm levels have same parameter that user can adjust if needed. Otherwise they will work
with their default settings. The meaning of parameters is as follows:
Level: The measurement level to raise the alarm
Auto-reset: Define how the alarm relays will work. If 'YES' selected the relay will be released
once the measurement level returned to normal. If 'NO' selected the relay will lock in their
position.
Directions: Parameter to define in which way alarm will be activated whether increasing or
decreasing. For most toxic and flammable gases it will be raising, for oxygen it can be both
raising and falling.
Relay: It defines the alarm relay working conditions. Relays can be programmed as Energised
(NC) or Non-energized (NO) contact according to use cases and scenarios. When Energized is
selected, the relay will have energy during normal operation. When Non-energized is selected,
the relay is only energized when performing the switching function.
Off Delay: To define the delay while alarms and relays performing activation or deactivation
functions. This function must be adjusted according to operating conditions and safety rules.
For example, in some plants ventilation fans kept activated after the measurement level falls
below the alarm level. In such cases the off delay feature can be used. The off-delay can only
be defined in minutes.
PRS-UM-PQ-EN-Rev.05-18.06.2020
Alarm 1 Settings
Level: 10%
Auto-reset: NO
Directions: Rising
Relay: De-energized
Off Delay:00 Min
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