Specific Safety Considerations
Dymax EC-series flood lamps are designed to maximize operator safety and minimize exposure to UV light-
curing energy. To use the unit safely, it must be set up and operated in accordance with the instructions in this
user guide. Please also read and understand the safety considerations unique to UV light-curing systems as
described below.
WARNING! Looking directly at the UV light emitted by an EC flood lamp can result in eye
injury. To prevent eye injury, never look directly at the high-intensity light and always wear
protective goggles (provided).
Dymax UV Light-Curing System Safety Considerations
Operators must understand these four concepts to use the UV light source safely:
■ UV exposure
■ High-temperature surfaces
■ Ozone
■ Bright, visible light
Each is described below.
UV Exposure
Standard Dymax UV light-curing systems and bulbs have been designed primarily to emit UVA light (Figure 1).
UVA light is generally considered the safest of the three UV ranges: UVA, UVB, and UVC. Although OSHA does
not currently regulate ultraviolet light exposure in the workplace, the American Conference of Governmental
Industrial Hygienists (ACGIH) does recommend Threshold Limit Values (TLVs) for ultraviolet light.
Figure 1. UV Spectrum
The strictest interpretation of the TLV (over the UVA range) for workers’ eyes and skin is 1 mW/cm
2
(intensity),
continuous exposure. Unless workers are placing bare hands into the curing area, it is unusual to exceed these
limits. To put 1 mW/cm
2
limit into perspective, cloudless summer days in Connecticut regularly exceed
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