Operation — Operator instructions (Auto and Button mode)
12.5.1
All visitors get screening alarms
If all visitors get screening alarms and there is reason to believe that these are false
alarms, do the following:
1. Restart the screening, see sections 12.3.1
(Auto
mode) and 12.4.1
(Button mode).
2. If the problem still remains after the restart, see section 12.5.2
12.5.2
False alarms
If you are experiencing many false alarms, you may need to adjust the offset used to cal-
culate the alarm threshold.
The offset value (allowed deviation) is how much the measured temperature can differ
from the average temperature without triggering an alarm. A higher value will lead to few-
er false alarms, but there will also be a risk of missing people with elevated skin tempera-
tures. A lower value will detect smaller elevations in skin temperatures, but it will also
generate more false alarms.
12.5.3
Somebody moved the equipment
The screening station is carefully set up to make sure the screening position is at the cor-
rect distance from the camera.
If the stand with the camera or the screening position floor sticker has been moved, do
one of the following:
• If the position of the stand is marked, e.g. by tape on the floor, make sure to put the
stand back in the correct position.
• If there are no markings for the stand or if the marking for the screening position has
been moved, the entire screening station should be set up again following the instruc-
tions in chapter 10
Setup — Screening station (Auto and Button mode)
.
12.5.4
False triggering
Persons and objects in the background can cause false triggering. To prevent back-
ground disturbances from reaching the camera, it is recommended to place a backdrop
behind the screening position.
12.5.5
Cannot screen short/tall persons
The screened person shall stand at the screening position (not closer or further away
from the camera).
• Tall persons may have to bend their knees.
• Short persons may need e.g. a high chair to sit on.
The screening station is set up to screen persons with a height of 150-195 cm (4.9–6.4
ft.). To adapt the setup for other average heights, see section 10.4
12.5.6
Too cold
and
Too warm
messages
The system only evaluates temperatures within a certain temperature range. If the meas-
ured temperature is outside this range, a
Too cold
or
Too warm
message is displayed.
Note
This message is not a screening result. The visitor should wait a few minutes and
then try the screening again for a result (Normal or Elevated).
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