Using The Device Survey Tool; Survey Results Explained - EMS FireCell FC-868-SE2 User Manual

Using the Device Survey Tool

With the Device Survey Tool switched on, depress the rear switch to initiate a signal. After a few
seconds results will be displayed and a high pass or a at fail tone will be heard.
LED signal indication is also shown on the device, a Green LED indicates a Pass and the Yellow
LED indicates a Fail.
Whether undertaking a Fusion RLM or FireCell survey, a level of 24dB or above is required
as a pass result.
>21dB >21dB
BG = 7dB
The background levels are taken into account prior to displaying the events on the units. If the
required device position fails to pass the test then a further RLM/RCC position will need to be
found closer to the device and the survey repeated. Every device position should be recorded
along with the received signal levels.

Survey Results Explained

The gures shown are explained as follows:-
Incoming Outgoing
signal level signal
in dB level in dB
>45dB >45dB Pass
BG = 0dB
Background
Level in dB
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SURVEYOR
DEVICE
LOCAL - REMOTE PASS / FAIL
>45dB >45dB Pass
BG = 0dB
REMOTE - LOCAL
SIGNAL QUALITY %
BATTERY
Fail
Pass / Fail
result
Surveyor Device
Battery Battery
level level
LOCAL - REMOTE
>45dB >45dB Pass
BG = 0dB
SIGNAL QUALITY %
Note; the battery icons shown above (bottom right of
display), will alternate with a test number also shown.
>45dB >45dB Pass
BG = 0dB
Alternating to
Incoming
signal
success rate
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SURVEYOR
DEVICE
PASS / FAIL
REMOTE - LOCAL
BATTERY
>45dB >45dB Pass
100% 98%
Outgoing
signal
success rate
MK144 (Iss 3) 30/10/2018 AJM
0001
Number of
tests
conducted