Irradian Limited
PM203 Radiometer
10
1) Switch off the photometer before changing the battery.
2) Slide open the battery compartment on the back of the photometer
and pull out the battery. Disconnect from the battery clip.
3) Replace with a PP3 9 volt battery.
4) Place battery inside compartment and slide cover closed.
5) Note it will be necessary to switch on and off the photometer before
normal operation will commence.
Irradian holds a number of tungsten halogen lamps, photometers and a
silicon photodiodes which are routinely calibrated by the National Physics
Laboratory in the UK.
Irradian estimates the absolute accuracy error in calibration of the PM203
optical power meter is ±5% from 400 to 1100nm for monochromatic light
source.
As with all measuring equipment a routine calibration is recommended,
typically annually, but with frequent use by a number of different users a
shorter recalibration period may be necessary.
