1
- 17 -
951-180-087-EN
Version 01
EN
1. Safety instructions
1.20 Special safety instructions regarding explosion protection
○
D
epending on the operating conditions,
check the product for damage that may
present a risk of ignition and check for
proper function. An inspection must be
conducted at least every 12 months.
○
The ignition temperature of the sur-
rounding potentially explosive gases and
vapors must be greater than 125% of the
maximum surface temperature.
○
The minimum ignition temperature and
the glow temperature and the surround-
ing potentially explosive dusts must be
greater than 150% of the maximum sur-
face temperature.
○
The usage limits for explosion protection
are clearly defined in the explosion pro-
tection marking by the device categories,
gas and dust groups and temperature
classes. Light metal dusts, as a poten-
tially explosive ambient medium, are
always prohibited even when dust group
IIIc is specified.
1.19 Cleaning
○
There is a fire hazard from the use of
flammable cleaning agents. Use only
non-flammable cleaning agents that are
suitable for the intended purpose.
○
Do not use corrosive cleaning agents.
○
Do not use steam-jet equipment or high-
pressure cleaners. This may damage
electrical components.
Observe the IP protection class.
○
Cleaning work must not be performed on
conducting components.
○
Mark wet areas accordingly.
○
Always behave so as to avoid explosion
hazards.
○
A written work authorization from the
operator is required prior to initiating
work in potentially explosive atmo-
spheres. Unauthorized persons must be
kept away.
○
There must be no evidence that parts of
the explosion protection are missing or
non-functional. If this is not excluded,
switch off the machine and immediately
notify the supervisor.
○
Explosion protection measures must
never be deactivated, changed, or
bypassed.
○
The introduction of ignition sources such
as sparks, open flames, and hot surfaces
into potentially explosive atmospheres is
prohibited.
