Alarm Settings - Prosense Safevader Series User Manual

Alarm Settings

Alarm levels can be adjusted via using alarm menu steps. Once you reach the main menu the
first option is alarm settings. Press Enter to move the alarm settings menu. A new menu listing
alarm levels will be shown:
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. According to IEC EN 60079-29-1 highest level alarm "Alarm-2" is set to latch mode
without auto-reset.
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: User can define delay to deactivate the alarms. Equipment keeps alarms and relay
contacts active after measured gas level goes below the defined alarm level. This function must
be adjusted according to operating conditions and safety rules. For example, in a plant
PRS-UM-SV-EN-Rev1.0-16.12.2022
1. Alarm 1
2. Alarm 2
3. Alarm 3
4. Previous Menu
Alarm 1 Settings
Level: 10%
Auto-reset: NO
Directions: Rising
Relay: De-energized
Off Delay:00 Min
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