2
English
the uV-a meter is designed specifically for professional assessment of the condition
of uV bulbs in electronic fly traps with bulb wattage outputs of between 10 -
160watts. the uV-a meter has two functions:
A. Checking the trap’s UV tube output and the condition of the tubes to
show if replacement is required
B. Assess ambient UV levels for optimal siting of new fly traps.
a. to check uV output for a fly trap - uVa output and bulb intensity decreases
proportionately with distance from the trap and age of bulbs. the test should
be carried out with the uV-a meter pointed directly at the trap from a distance
corresponding to its total rated uV wattage,
Fig 1.
Hold meter at right angles and to the centre of the flytrap
under test, slight movements away from this angle will give incorrect
readings.
total bulb wattage:
10 watts 20 watts 30 watts 50 watts 80 watts
Metres:
1.3
1.5
2.0
2.2
2.5
Feet:
4
1
/
4
5.0
6
1
/
2
7
1
/
4
8
1
/
4
Measurements are of the total output of the trap, there is no need to measure
individual bulbs. Fig 1.
1.
Press either button A or S
to turn meter on - the red Led on the far left will
2. to measure ambient light,
switch off fly trap
and with meter pointing in
general direction of the trap
press button A.
the green Led on the far right of the display will blink on and off indicating the
meter has stored the ambient uV level of the room.
3.
Switch on the fly trap.
4. using the table Fig 1
establish the measuring distance
point from the
flytrap.
