ACCU-CAL™ 50-LED Radiometer

for use with LED Light Curing Systems  CE Marked - Available Globally


Consistent light curing requires periodic monitoring of the light energy intensity and dosage levels. The ACCU-CAL™ 50-LED radiometer is simple to operate and offers accurate measurement of curing energy. The ACCU-CAL™ 50-LED can measure energy levels emitted from lightguides (3 mm, 5 mm, and 8 mm), BlueWave® QX4™ LED heads, and LED flood lamps. A spectral sensitivity range of 350 - 450 nm and intensity measurement from 1 mW/cm2 to 40 W/cm2, makes this unit ideal for measuring LED curing source energy levels. A specially designed photo-sensor assembly provides repeatable measurements and protection from high temperature associated with some LED systems on the market.

  • Simple to operate
  • Set screw locks lightguide in place
  • PTB and NIST traceable
Download  ACCU-CAL™ 50-LED Radiometer Intensity Meter Product Bulletin
Download  ACCU-CAL™ 50-LED Radiometer System for the BlueWave® QX4™ Product Bulletin
Download  ACCU-CAL™ 50-LED Radiometer User Guide
Download  Dymax Light-Curing Equipment Selector Guide

Take advantage of the opportunity to evaluate our light curing systems for two weeks free of charge through our Try-and-Buy program.

ACCU-CAL™ 50-LED Radiometer Specifications
Spectral Sensitivity 350 to 450 nm
Intensity Range 1 mW/cm2 to 40 W/cm2
Resolution Intensity (1 mW/cm2; to three significant digits)
Dose (1 mJ/cm2)
Calibration Period 12 months
Operating Temperature Ranges Optometer: +5 to +40°C
Detector: 120°C continuous, Peak 200°C
Measurement Modes Intensity (mW/cm2)
Peak Intensity (mW/cm2)
Dose (mJ/cm2)
Light Sources Lightguides (3 mm, 5 mm, and 8 mm), BlueWave® QX4™ LED Wands, LED Flood Lamps
Power Supply Two (2) AA batteries
Battery Life 250 hours (automatic shutoff after 1 hour)
Sensor Dimensions Photo-Sensor Diameter = 9 mm
Diameter = 37 mm
Thickness = 8 mm
Cable Length = 1 M
Meter Dimensions 145 mm (Length) x 63 mm (Width) x 30 mm (Thickness)
Radiometers & Accessories
Product Part # Description
ACCU-CAL™ 50-LED for LED Spot and Flood Units 40505 Complete radiometer with 3 mm, 5 mm, and 8 mm lightguide adapters, lightguide simulator*, and an optical adapter for use with the BlueWave® QX4™; includes storage/carrying case
ACCU-CAL™ 50-LED for LED Flood Units 40519 Complete radiometer for LED flood and conveyor systems; includes storage/carrying case
Flood to Spot Adapter Kit 39554 Kit includes three lightguide adapters (3 mm, 5 mm, and 8 mm) and a lightguide simulator*
3 mm Lightguide Adapter 39556 Fits 3 mm ID lightguides (5 mm OD)
5 mm Lightguide Adapter 39557 Fits 5 mm ID lightguides (7 mm OD)
8 mm Lightguide Adapter 39558 Fits 8 mm ID lightguides
Lightguide Simulator* 38408 Lightguide simulator* (Fits all standard lightguide entrance fittings)
BlueWave® QX4™ Optic Adapter Upgrade Kit 42218 This option is for customers who already own an ACCU-CAL™ 50-LED. The kit includes the optic adapter and updated software and calibration for your existing radiometer. The customer’s radiometer must be returned to Dymax for programming and calibration.
*A lightguide simulator is used to measure direct spot lamp intensity (required to calculate lightguide transmissions)
Images & Diagrams
Part Number 40505 ACCU-CAL 50-LED for Measuring Spot Lamps only

PN 40519
ACCU-CAL™ 50-LED for measuring LED flood lamps and conveyors.

Part Number 40519 ACCU-CAL 50-LED for Measuring LED spot lamps and flood lamps

PN 40505
ACCU-CAL™ 50-LED for measuring LED spot and flood lamps.