- Joined
- Nov 3, 2008
- Messages
- 106
"We have identified a problem with the latest batch of meters, which is caused by a new component in the filtration system incorrectly allowing some longer-wavelength UVA through.
What does this mean?
Readings from UVB fluorescent tubes and compact/ coil UVB lamps are much lower than they should be.
Readings from some mercury vapour lamps are also lower than they should be.
Readings from outdoor shade and gentle sunlight are higher than they should be.
Readings from UVB metal halide lamps are much higher than they should be."
Check your meter if you have purchased it since September 2015. Meters with a serial number ABOVE 03325 have the affected component.
Full text, by Dr Frances Baines, UV Guide UK, May 15 2016, at
http://www.uvguide.co.uk/Solarmeter6-5batch-problemMay2016.htm
What does this mean?
Readings from UVB fluorescent tubes and compact/ coil UVB lamps are much lower than they should be.
Readings from some mercury vapour lamps are also lower than they should be.
Readings from outdoor shade and gentle sunlight are higher than they should be.
Readings from UVB metal halide lamps are much higher than they should be."
Check your meter if you have purchased it since September 2015. Meters with a serial number ABOVE 03325 have the affected component.
Full text, by Dr Frances Baines, UV Guide UK, May 15 2016, at
http://www.uvguide.co.uk/Solarmeter6-5batch-problemMay2016.htm
