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223846 / YA6060300010
2022-07-11·BA00·III·en·05
Function and device design
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Audible signalling device
Series YA60
Commissioning, maintenance, repair
• Only have commissioning and repairs performed by qualified and authorised persons
(see chapter "Personnel qualification").
• Before commissioning, make sure that the device is not damaged.
• Perform only maintenance work described in these operating instructions.
3.4
Modifications and alterations
4
Function and device design
4.1
Function
Application range
The series YA60 explosion-protected audible signalling device is intended for use in
hazardous area or in harsh environments.
It can be used in hazardous areas according to ATEX/IECEx in Zones 1 and 2 of gas
group IIB or IIB + H2 or in Zones 21 and 22 for dust group IIC as well as in safe areas.
The UL-certified variants can be used in areas according to Class I Division 1 for gas
groups B, C and D, and Class II Division 1 for gas groups E, F and G, as well as in safe
areas.
Mode of operation
When activated, the signalling device emits an audible signal, depending on the
configuration and device version.
DANGER
Explosion hazard due to modifications and alterations to the device!
Non-compliance results in severe or fatal injuries.
• Do not modify or change the device.
No liability or warranty for damage resulting from modifications and
alterations.
DANGER
Explosion hazard due to improper use!
Non-compliance results in severe or fatal injuries.
• Use the device only according to the operating conditions described in
these operating instructions.
• Use the device only for the intended purpose specified in these
operating instructions.