Alcochem Hygiene hand-held UV-A meter Manual - Página 2

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The information in this service manual is based on the latest information, and is provided subject to
alterations. We reserve the right to change the construction and/or configuration of the product at
any time without obligation to modify earlier versions of the product.
D
C
Introduction
This instrument is a portable easy use 31/2 digit, compact-sized digital UV-A meter, designed for simple one
hand operation. The meter provides measurements in 199.9μW/cm
MAX-HOLD and DATA HOLD facilities.
Safety information
• To avoid injury or fire hazard, do not use this product in an explosive atmosphere.
• To avoid eye injury, wear eye protection if there is a possibility of exposure to high-intensity rays.
• Do not immerse in liquids, clean the sensor head using only a damp cloth.
• Cover sensor head when not in use to extend silicon photo-diode sensor life.
Specifications
Technical name
:
hand-held UV-A meter
Display
:
3,5 digit liquid crystal display (LCD) with maximum reading of 1999.
Over range
:
"OL" is displayed.
Low battery indication
:
The "battery indicator" is displayed when the battery voltage
drops below the operating level.
Sensor type
:
photo diode
UV sensor spectrum
:
320 - 400 nm
Wavelength Peak
:
365 +/- 5nm
Accuracy
:
max 4% of max scale
Ranges
:
199.9 μW/cm², 1.999 mW/cm², 19.99 mW/cm²
Dimensions
:
155 x 48 x 24 mm
Weight
:
82 gram (without batteries)
Power
:
battery operated (3 x LR6)
Temp operation conditions
:
0 to + 50 degrees Celsius at < 75 % relative humidity.
Temp storage conditions
:
-20 to + 60 degrees Celsius, 0 to 80% R.H (without battery in meter)
Guarantee
:
1 year return to base
CE-approval
:
yes
A. Screwdriver
B
A
B. Sensor cover
C. Batterie section (3x LR6)
D. Cover batterie section
1.999mW/cm
and 19.99mW/cm
units,
2
2
2
Prior to taking a UV-A reading, make sure that the lamp has been working for at least 5 minutes.
Depending on the ambient temperature, it can take up to 5 minutes for a UV-A lamp to reach
its full UV-A output.
1
Remove the sensor cover on the backside of the UV-A meter
2
Switch the meter on by pressing the MEAS button
3
Select the range by pressing the RNG button twice to Hi, so
you will see two decimals behind the decimal point (ie: 0.00).
This will now measure from 0 to 19,99 mW/cm
4
Press the MAX button so you will record the highest
output value shown in the display. MAX will appear
in the display at the top of the screen.
5
Now swipe the sensor head (white – round head) slowly
along the glass of the lamp from left to right. The sensor
head should be touching the glass during this operation.
6
Then press the HOLD button. H will appear in the top
of the screen (This step is optional if you have pressed
the MAX button, but it holds the reading longer in the
display).
7
Now you can read the UV-A output value.
8
To take the next reading, press HOLD button
again to turn off HOLD (It now disappears from
the top of the screen). Press also MAX to clear
the reading.
Then repeat step 1 to 7 above.
Lamp is effective: (strong fly attractant UV-A spectrum)
5 mW/cm
2
(3 mW/cm
2
for Basic Line) is required min. UV-A output, which ensures that the unit
stands out from its environment and insects notice the light in the perimeter around the fly control unit.
Lamp needs replacing (ineffective fly attraction level).
Resolution:
Range
Resolution
199.9μW/cm
0.1μW/cm
2
2
1.999mW/cm
0.001mW/cm
2
2
19.99mW/cm
0.01mW/cm
2
2
2