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2.5 Forbidden uses
Forbidden use Risk Measures
Operation in explosive atmosphere Fire and explosion
Suction of explosive, toxic and
dangerous gases
Fire and explosion
Environment pollution
Risk of operators health
Operation with free nozzles
Environment pollution
Risk of operators health
Forbidden use
Suction of liquids Blower stall and ejection of parts
Install a liquid separator on the suction nozzle of
the blower
Operation with shut off valve locked
Overheating
Fire
Blower stall and ejection of parts
Operation with wrong direction of
rotation
Ejection of dangerous substances
Blower stall and ejection of parts
Inform the qualified personnel charged with the
blower
Operation with speed higher than the
maximum one
Operation with speed lower than the
minimum one
Blower stall and ejection of parts
Use suitable limits to the motor speed when it is
supplied with frequency converter
Operation with pressure P1
higher than the maximum one
Ejection of dangerous substances
Operation with pressure P1
lower than the minimum one
Blower stall and ejection of parts
Use a safety pressure switch when the blower
sucks from a closed circuit
Operation with pressure P2-P1
higher than the maximum one
Blower stall and ejection of parts
Operation with pressure ratio P2/P1
higher than 2
Set up the relief valve
Operation with temperature T1
higher than the maximum one
Overheating
Fire
Blower stall and ejection of parts
Operation with temperature T1
lower than the minimum one
Blower stall and ejection of parts
Use a safety temperature switch when the blower
sucks from a closed circuit
Operation with temperature T2
higher than the maximum one
Overheating
Fire
Blower stall and ejection of parts
Use a safety temperature switch when the blower
sucks from a closed circuit
Operation with temperature T2-T1
higher than the maximum one
Blower stall and ejection of parts
Use a differential temperature switch when the
blower sucks from a closed circuit
Stopping the ROBOX with counter
pressure
High current absorption
Fire
Use a suitable stopping procedure
2.6 Residual risks
Hazard
UNI EN 1012-1 Compressor
Residual risk
Cutting, severing, drawing in,
trapping, entanglement,
friction and abrasion
Do not approach the transmission guard with no suitable clothes
Advice in the manual
Fluid ejection
Overcoming the operation limits (par. 2.2) can cause the risk of ejection of parts
Ejection of parts
Overcoming the operation limits (par. 2.2) can cause the risk of ejection of parts
Loss of stability
None
Electric installation
Electrostatic phenomena
External influences on
electrical equipment
None
The electric equipment is not supplied by ROBUSCHI
Thermal safety The surface of the blower and of the discharge silencer can be higher than 70 °C
Label C.7 on the surfaces
Advice in the manual
Noise The sound pressure level can be higher than 85 dB(A)
Wear the noise protection devices
Label C.2 on the inlet filter
Advice in the manual
Suction of liquids
Forbidden use can cause the risk of suction of liquids
Gas
Forbidden use can cause the risk of suction of dangerous gases
Fire and explosion Overcoming the operation limits (par. 2.2) can cause the risk of fire and explosion
Operation with shut-off valve locked can produce the risk of fire
The not correct maintenance can cause the overheating and the risk of fire
Failure of energy supply
Ejection of fluids and parts
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