Glossary
D-6
P/N 7105144G
2008 Nordson Corporation
VersaBlue_NW
dB (A)
Unit for the sound intensity level, measured according to the internationally
standardized evaluation curve A, which measures sound in a way similar to
how it is perceived by the human ear.
Degree of Protection
According to IEC 529/DIN 40 050.
The degrees of protection of electrical components through metal protection
are stated as an abbreviation such as IP 54. The first numeral stands for the
contact and impurity protection, and the second numeral indicates water
protection. The third numeral, which indicates impact protection, is usually
not stated.
1. numeral 2. numeral 3. numeral
IP Contact and impurity
protection
Water protection Impact protection
Protection from... Protection from... Protection from impact strength
up to...
0 − − −
1 Foreign object > 50 mm Water dripping vertically 0,225 J = Impact of 150 g from a
height of 15 cm
2 Foreign object > 12 mm Water dripping diagonally 0,375 J = Impact of 250 g from a
height of 15 cm
3 Foreign object > 2.5 mm Spray water 0,5 J = Impact of 250 g from a
height of 20 cm
4 Foreign object > 1 mm Splash water −
5 Dust accumulation Water stream 2,0 J = Impact of 500 g from a
height of 40 cm
6 Dust penetration Upon flooding −
7 − When dipped 6,0 J = Impact of 1.5 kg from a
height of 40 cm
8 − When submerged −
9 − − 20 J = Impact of 5 kg from a height
of 40 cm
Drop-off Delay
1. The time between the signal to switch off the gun/application head and
the end of material application.
2. The time that a delay relay remains engaged after it has been switched
off.
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