PestWest UV-A Meter Gebrauchsanweisung Seite 5

If a continuous assessment of UV is required, perform operation 5 but hold
button 'Trap' down continuously. If you now move the meter closer to the fly trap
the reading should increase and vice-versa if you move the meter away it will
decrease. Releasing the button stores the last instantaneous reading.
The illuminated LED will remain on without the need to hold any buttons until
the meter powers down. This happens automatically 60 seconds after the last
press of any button.
B. MEASURING THE AMBIENT UVA LIGHT LEVELS FOR OPTIMAL SITING
OF NEW FLY TRAPS
When surveying a site prior to the installation of fly control units, ambient
UV levels should be measured to prevent poor trap location and to select
appropriate wattage fly traps.
OPERATING THE METER – AMBIENT UV LEVELS
1. Press either button labelled 'Amb' (Ambient) or 'Trap' to turn the unit on –
The LED's will illuminate in a sweeping motion form left to right and back
again, twice. After the sweeping the red LED number 1 will blink on and
off repeatedly.
2. Press and HOLD button 'Amb' (Ambient). Now whilst still holding the 'Amb'
button down, point the meter in the general direction of the siting. The
meter will continuously display the UV light level (If any) in that area. Note –
very low levels will not illuminate any LED's.
3. Choose the optimum location for the siting of a fly trap by choosing a place
with the lowest ambient light reading.
Note that: If you are unable to find a low ambient light reading a higher wattage
fly trap will be required to compete with the high levels of surrounding light.
Different times of day may produce different readings according to the amount
of sunlight present.