Temperatures Of Touchable Hot Surfaces - Grant XUB Serie Manual De Instrucciones

Temperatures of touchable hot surfaces

BS EN 13202:2000 gives the recommended maximum surface temperatures for
different materials at various exposure times (see below)
Your Grant ultrasonic cleaning bath can be set so that the cleaning fluid is up to 70°C.
This means that parts of your ultrasonic cleaner will be above the recommended
maximum temperature.
If you do operate your ultrasonic cleaner at temperatures above the recommended
maximum, then Grant advise that you conduct a risk assessment, and if appropriate
fix a "Caution – Hot" warning label to your machine.
The following limit values are based on the harmonized standards -

BS EN 13202:2000 Ergonomics of the thermal environment - Temperatures
of touchable hot surfaces - Guidance for establishing surface temperature
limit values in production standards with the aid of -

EN 563: 1994 Safety of machinery - Temperatures of touchable surfaces -
Ergonomics data to establish temperature limit values for hot surfaces
Materials/time-temp*
uncoated metal
painted metal
enamelled metals
ceramics, glass, stone
plastics
wood
Time
1 sec
4 sec
10 sec
10 min
8 hr
XUB Series
Operating Manual
1 sec
65°C
83°C
74°C
80°C
85°C
110°C
Contact
accidental contact
parts held for short periods
parts continuously held in
normal use
prolonged use
continuous use
4 sec 10 sec 10 min
58°C 55°C
64°C 55°C
60°C 56°C
70°C 66°C
74°C 70°C
93°C 89°C
Outer case, tank flange
knobs, switches
29
8 hr
48°C 43°C
48°C 43°C
48°C 43°C
48°C 43°C
48°C 43°C
48°C 43°C
Part
handles
handles
handles
29666 V1
EN