Maintenance; Using The Control Buttons; Maintenance Status Indicator - Xtralis VESDA Sensepoint XCL Installation Manual

VESDA
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Maintenance

4.1

Using the Control Buttons

It is possible to perform basic maintenance functions on the VESDA Sensepoint XCL gas detector without the
use of the Sensepoint App. This is achieved through the use of two control buttons inside the detector.
Familiarize yourself fully on the operation of these buttons before attempting to use them.
Note: Make sure that the inhibit level is set to the desired level. See "Inhibit Level Selection".
To inhibit the detector output: Press and hold the UP button for 2 seconds.
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To increase the output voltage: Briefly press the UP button. Pressing once increases by 0.01 V. To
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increase by 0.1 V, press and hold the button.
To decrease the output voltage: Briefly press the DOWN button. Pressing once decreases by 0.01 V.
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To decrease by 0.1 V, press and hold the button.
To move to the next stage: Press and hold the UP button for 2 seconds. If a change has been made, it
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is saved automatically before proceeding to the next stage.
To escape and discard all changes: This escape function can be used at any time during the
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procedures detailed in the following sections. Press and hold the DOWN button for 5 seconds.
4.2

Maintenance Status Indicator

There is another indicator on the rear of the detector module for easier maintenance. When performing
maintenance, such as calibration or sensor replacement, using the control buttons, refer to the indicator to
determine the status of the detector.
Inhibit mode
While in inhibit mode, the indicator is on steady yellow
Sensor replacement mode
While in sensor replacement mode, the indicator slowly flashes yellow
on steady yellow .
Zero calibration
During zero calibration, the indicator flashes long yellow
short yellow flash indicates zero status and second flash indicates span status. The indicator flashes long
yellow followed by short green flash
completed, but flashes long yellow
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VESDA Sensepoint XCL – Large Bore Installation Manual
UP
.
followed by two short yellow flashes
and short yellow flash
followed by short red flash
DOWN
OUTPUT VOLTAGE
. When in warm-up, the indicator is
when the zero calibration is successfully
and short yellow flash
. First
if it fails.
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