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UV Radiometer

Measuring Instruments

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UM-10

Measurement of ultraviolet intensity.

Type			Irradiance meter with interchangeable receptor heads for measuring UV radiation
Receptor heads	Receptor		Silicon photodiode
	Model		UM-250	UM-360	UM-400
	Spectral response		220 to 300nm	310 to 400nm	360 to 480nm
	Peak wavelength		250±10nm	365±5nm	415±5nm
	Cosine error	30°	Within ±3%	Within ±3%	Within ±3%
	Cosine error	60°	Within ±15%	Within ±10%	Within ±10%
Measurement modes			Irradiance ;integrated irradianceand integration time;irradiance difference;percent irradiance
Irradiance measuring range			0.1 to 199,900µW/cm2 in four automatically selected ranges
Integrated irradiance range*			Maximum approx.100000mJ/cm2 measurable (in 9999 display cycles)
Integration time*			999,900sec.(288h)
Linearity			Within ±5% of reading = 1 digit
Temperature/humidity drift			Within ±3% ±1 digit (of value displayed at 23°C/73.4°F) within operating temperature/humidity range
Analog output			0 to 3V;1mV/digit
Digital output			RS-232C 2400BPS
Display			4-digit LCD
Operating temperature/humidity range			0 to 40°C, relative humidity 85% or less (at 35°C) with no condensation
Storage temperature/humidity range			-20 to 55°C, relative humidity 85% or less (at 35°C) with no condensation
Power source			One 9V battery or optional AC adapter
Dimensions			73.5×186×33mm(2-7.8×7-5/16×1-5/16 in)
Weight			270g(9.5 oz.) including battery
Standard accessories			Case;Cap;Strap;Analog output plug