LS128 UV Energy Meter
Main Application:
§  Special for UV LED (365, 385, 395, 405nm, etc.)
§  UV intensity measuring range of 40000 mW/cm²
§  Record UV intensity, energy, temperature and curing time together
Product Introduction:
LS128 is a professional UV energy meter for testing UV LED light sources and has various
excellent achievements:
§  The first UV energy meter for UV LED light source testing.
§  The first wide-range UV energy meter with a range of 40W/ cm².
§  The first UV energy meter for a wide spectrum (340nm-420nm).
§  The first UV energy meter that measures temperature and power at the same time
and can display process curves.
Specification:
Parameter	LS128 UV Energy Meter
Application	Light intensity, energy and temperature measurement of UV LED light sources
Spectral range	340nm – 420nm, calibrated at 395nm UV LED light sources
Irradiance measuring range	0 - 40000 mW/cm²
Irradiance resolution	1 mW/cm²
Energy measuring range	0 – 999999 mJ/cm²
Energy measuring accuracy	+/-10%, +/-5% (typical)
Temperature measuring range	-55ºC - 125 ºC
Sampling speed	2048 times/second
Irradiance data storage interval	32 times/second
Temperature data storage interval	2 times/second
Recording period	32 min
Power supply	2 AAA alkaline dry batteries
Display	240 * 160 Dot matrix LCD
Test Hole Diameter	Ø 10 mm
Dimension	Diameter 120 mm * Thickness 13 mm
Weight	327 g
Feature:
Two measurement modes available
There are two measurement modes. One is Manual mode which needs to start up or end of
measurement manually. Another is automatic modes that can automatic switch-on or end of
measurement when the energy intensity emitted by the light source is above or below the
trigger threshold that can be set
Four interfaces help you record the data of UV light source
There are four interfaces to help you know better about UV light source you tested: In maximum
values interface, you can acquire cumulative energy value, maximum power value and
maximum temperature value. Measurement time can be recorded in RT interface. In temperature
and power curve interface, you can know the temperature change and energy intensity variation
of the light source. Four interfaces can be switched freely.
High temperature resistant
Built-in heat shield, high temperature resistant design. The UV energy meter can run in the
environment of 100 degrees Celsius for a 2 hours long time.
Wide spectral response range
With wide spectral response range, the UV power puck can test UV LED light source with any
peak in the range of 365nm – 405nm
Powerful PC software
The LS128 UV Energy Meter can be connected to PC software, which allows you to generate
reports and print out test results, as well as to export test data.