This UVA+B Meter is designed to test the UVA+B irradiance of the UV lamp which used for the UV Aging, Reptile Lamps, Acrylic Shield Transmission or Eyewear UV block comparison. The instrument have a LCD which can display the value of the UVA+B irradiance the UVB lamp.
Sensor
Silicon Carbide (SIC) Photodiode packaged in hermetically sealed UV glass window cap.
Interference filter coating (Metal Oxide) blocks most UVA+B from response.

Operating
Press and hold push-button switch on face of unit. Aim sensor window in top panel of
meter directly at UV source. Note reading on LCD and record if desired. For reptile lamps
also check at "basking" position.

Battery
Battery operation voltage is 3V down to 2.5V. Below 2.5V the LCD numbers will begin to
dim, indicating the need for battery replacement. Under "typical" service load, the battery
should last about 1 year.


Technical Parameter
Irrad. Range      0-1999 µW/cm² UVA+B
Peak Spectral Response     λp=370 nm
Resolution     1 µW/cm²
Conv. Rate     3.0 Readings/Sec
Display     3.5 Digit LCD
Digit Size     0.4 inch high
Oper. Temp     32° F TO 90° F
Oper. Humid.    5% TO 80% RH
Accuracy     ±10% REF.NIST
Dimensions (in.)     4.2L x 2.4W x 0.9D (in.)
Weight     4.5 OZ. (incl. batt.)
Power Source     2×1.5-Volt DC Battery
Lens     UV Glass


Operation
Proper Usage of RGM-UVA+B meter for Lamp Aging Tests
- Wear eye protection when checking UV lamps (UV-block wrap around glasses).
- Allow lamps to warm-up prior to taking readings (at least 5 min).
- When checking aging of lamps, keep measuring distance and locations constant.
- Lamps should be replaced when output drops 30% to about 70% of their original (new) readings. Take overall reading at exposure distance, or check individual lamps close to surface. Keep track of hours vs. readings on a chart.
- If unsure of what original new values were, replace lamp(s) with new ones of the same kind and compare to old ones.
- 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.