Specifications

Guide to Selecting and Using Dymax UV Light-Curing Systems
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A radiometer is a device that measures the intensity and/or
energy associated with light of specified wavelengths. UV
light is, by definition, not visible and so a radiometer is
required to determine UV intensity. Dymax offers the ACCU-
CAL™ 50 for spots, floods, and conveyors. The ability to
measure light intensity is useful for three reasons:
1. Maintaining a light-curing process – A radiometer can
measure whether a light-curing system is providing intensity
above the “bulb change” intensity. A radiometer is to a light-
curing process what a thermometer is to a heat-curing
process.
2. Providing a worker-friendly light-curing process – A
radiometer is required to determine if any UV light is reaching
operators or bystanders.
3. Measuring transmission rates through substrates – A
radiometer can be used to measure the transmission rates of
various wavelengths through substrates that absorb UV
and/or visible light. To assure an effective curing process it is
critical to measure the light intensity reaching the light-curable
material below the intervening substrate.
ACCU-CAL™ 50 RADIOMETER
Dymax’s ACCU-CAL 50 is capable of measuring both the UV
intensity (mW/cm
2
) and dose (J/cm
2
) emitted from spot lamps*,
flood lamps, and conveyors. This easy-to-use radiometer is
compatible with 3-mm, 5-mm and 8-mm lightguides and only
requires re-calibration once per year. Please refer to Dymax
literature #Lit159 for more information.
ACCU-CAL™ 50 Radiometer
ACCU-CAL™ 50-LED RADIOMETER
Dymax’s ACCU-CAL 50-LED can measure energy levels emitted
from 3-mm, 5-mm, and 8-mm lightguides and LED flood lamps.
This radiometer has a spectral sensitivity range of 350-450 nm
and an intensity measurement from 1 mW/cm
2
to 40 W/cm
2
,
making it ideal for measuring LED curing-source energy levels. A
specially designed photo-sensor assembly provides repeatable
measurements and protection from high temperatures associated
with some LED systems on the market. Please refer to Dymax
literature #Lit276 for more information.
ACCU-CAL™ 50-LED Radiometer
ACCU-CAL™ 50 RADIOMETER
Part Number
39561 – UVA; compatible with all lamps
except spot lamps*
39560 – UVA; compatible with all lamps;
includes lightguide simulator and
attachments*
Measures
Intensity (mW/cm
2
); 320-395 nm (UVA)
Intensity
0-35 W/cm
2
Resolution
0.001 W/cm
2
or 3 significant figures
Battery Life
100 Hours
*Part #39560 includes lightguide attachments, part #39561 does not.
ACCU-CAL™ 50-LED RADIOMETER
Part Number
40505 –compatible with LED spot and
flood units
40519 – compatible with LED flood and
conveyor units
Measures
Intensity (mW/cm
2
); 350-450 nm (UVA)
Intensity
1-40 W/cm
2
Resolution
0.001 W/cm
2
or 3 significant figures
Battery Life
250 Hours