Temperatures Of Touchable Hot Surfaces - Grant XUBA Serie Bedienungsanleitung

Temperatures of touchable hot surfaces

BS EN 13202:2000 gives the recommended maximum surface temperatures for dif-
ferent 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 max-
imum temperature.
If you operate your ultrasonic cleaner at temperatures above the recommended max-
imum, 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
parts continuously held in normal
10 sec
10 min
8 hr
XUBA 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
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
16
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
knobs, switches
handles
handles
handles
29667 V1