SOLARMETER
MODEL 7.5 UV METER |
W/m2 ERYTHEMALLY EFFECTIVE (Eeff) UVR |
|
|
Features
- Integral Sensor
- Compact
- Durable
- Accurate
- LCD readout
Applications
- W/m2 Ery Lamp/Sun Output
Check EU 0.3 W/m2 Maximum
- Acrylic Shield Transmission
- Eyewear UV block comparison
|
Solarmeter
Specifications
Radiometer |
| Model |
7.5 |
| Irrad.
Range |
19.99 W/m2 Ery |
| Response |
280-400 nm Diffey
Erythermal Action Spectrum |
| Resolution |
0.01 W/m2 |
| Conv.
Rate |
3.0 Readings/Sec |
| Display |
3.5 Digit LCD |
| Digit
Size |
0.4 inch high |
| Oper.
Temp |
32° F TO100°
F |
| Oper.
Humid. |
5% TO 80% RH |
| Accuracy |
±10% REF.NIST |
| Dimensions
(in.) |
4.2L x 2.4W x 0.9D
(inches) |
| Weight |
4.5 OZ. (incl.
batt.) |
| Power
Source |
9-Volt DC Battery |
| Lens |
UV Glass |
| Diffuser |
Virgin Teflon .005 |
| Detector |
SIC/IF Photodiode |
|
Med/hr Meter
Spectral Response
|
|
Blue
Line: Meter response
Black Line: Erythemal response |
Sensor/Detector
Silicon Carbide (SIC) Photodiode packaged
in hermetically sealed UV glass window
cap.
Interference filter coating (Metal Oxide)
blocks UV above erythermal response
as show on Spectral Sensitivity Graph.
Operation
Press and hold push-button switch on
face of unit. Aim sensor window in top
panel of meter directly at UV source.
For tanning beds place meter at body
position. Note reading on LCD and record
if desired.
Battery operation voltage is 9V down
to 6.5V. Below 6.5V the LCD numbers
will begin to dim, indicating the need
for battery replacement. Under "typical"
service load, the battery should last
about 2 years.
|
|
Proper
Usage of Solarmeter ® Ultraviolet Radiometer
for Lamp Tests:
- Wear UV-block eye
protection when checking UV lamps.
- Allow lamps to warm-up
prior to taking readings (at least 5 min).
- Hold sensor close
to lamp or acrylic to measure individual lamp
Eeff intensity. Hold sensor at 25 cm above
bench with canopy closed for body position
reading.
- When checking aging
of lamps, keep measuring distance and locations
constant.
- Lamps should be
replaced when output drops to about 70% of
their original (new) readings. Keep track
of hours vs. readings on a chart.
- If unsure of what
original new values were, replace two adjacent
lamps with new ones of the same kind and compare
old ones.
- When checking acrylic
transmission, take reading through acrylic;
then remove acrylic and hold meter sensor
at approximately the same distance from lamp
as the acrylic shield was located. If acrylic
blocks much UV it should be replaced.
- Do not subject the
meter to extremes in temperature, humidity,
shock or dust.
- Use a dry,
soft cloth to clean the intrument. Keep sensor
free of oil, dirt, etc.
|
