37
Counting errors
Fan failure
Symptoms:
•
Mosquito counts may appear low
•
Small counts may appear high
•
Catch bag (if used) may be empty
•
In the
Dashboard -> Location
table, scroll to the columns
“Fan Status” and “Fan Current”. The Status is on “Fail” and
the current is near 0, even when the fan is supposed to
be on.
•
Error message in the Dashboard: “Fan failure detected”
Cause:
Fan has failed.
Solution:
Check fan wiring; if necessary replace fan.
Overcounting
Symptom:
Fewer mosquitos in catch bag than counts on
website.
1.
Cause:
Mosquitos might be able to escape if the catch bag is full or
due to a reduced air flow. When leaving the trap, the mosqui
-
toes sometimes cross the infrared barrier several times (40)
and are therefore also counted several times (41).
Solution:
A) Remove the funnel net and catch bag (42).
B) In case you need to analyze the mosquitoes, install a
catch bag below the fan (43).
2.
Cause:
Mosquitoes were “stolen” by other insects (e.g. ants)
Solution:
Place the trap ant-protected, e.g. in a water bath or grea-
se the basement with petroleum jelly.
40
41
42
43
Undercounting
Symptom:
More mosquitos in catch bag than counts on website.
Cause:
Some mosquitoes were misclassified as large.
Solution:
An accuracy of 80% or higher is normal. If there
are no other large objects in the catch bag, use the sum of
mosquito and large object counts.
Solar battery voltage gradually drops
Symptom:
In the
Dashboard -> Location
table, scroll the horizontal bar
until you see the column “Voltage Range”: The solar battery
does not maintain its voltage. Eventually, counting and trans-
mission of data stops.
Cause
:
There is insufficient sunlight to keep the solar battery char
-
ged.
Solutions
:
•
Modify your trap schedule to only measure during peak
hours of mosquito activity
•
Move the solar panel to a sunnier position
•
In rare cases, a larger solar panel may be needed. Contact
Biogents or your distributor.
