Calibration; Underrange; Overrange - Prosense Safevader Series User Manual

provide switching output for defined alarm levels. Alarm-3 is only visual alarm and it is not
integrated to relay module. Hence it is not possible to get switching output for Alarm-3. In case
of an alarm, related alarm LED will lit and alarm information will be shown on the screen:

Calibration

Equipment shows countdown messages during the calibration. Equipment shows calibration message
on display only in case user exited from menu during the calibration:

Underrange

Equipment detects underrange condition and set fault state where Fault LED will be lit, screen
show fault message and the detector analogue output gives 2mA.

Overrange

Equipment provides overrange condition in case the measured gas level over the measurement
range. All Alarm LEDs and Fault LED will be lit, screen show Overrange message and the detector
analogue output gives 22mA. Overrange status on RS485 MODBUS output. If relay module is
installed all relays Fault, Alarm-1 and Alarm-2 will be activated. The status will not change
without user intervention even the gas concentratin returns to normal level. It is necessary to
power-cycle detector to reset status by user intervention.
When user reset detector after environmental conditions retrun to normal, detector will perform all
self-test and hardware test steps following reset. User can see detector status after reset. If detector
returns to normal no additional step is required.
PRS-UM-SV-EN-Rev1.0-16.12.2022
ALARM
METHANE
15 %LEL
CALIBRATION
METHANE
0 %LEL
ALARM
OVRNG
METHANE
>100 %LEL
AL2
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