Distillation Process Analyzer DPA-4.5
Safety
2.4.6 Main switch and emergency off device
Main switch and integration in an
emergency off concept required
The device has neither its own main switch nor its own emergency
off device.
For this reason, before commissioning the device:
•
Install a main switch which disconnects all poles from the
current supply.
•
Install an emergency off device for the device. If the device is
operated as part of a system, integrate it in the safety chain of
the system control.
When installing, make sure that:
−
The main switch and the emergency off device can be secured
against being switched on again.
−
For example, it must be possible to secure the main switch with
a lock to prevent it from being switched on without
authorization.
−
The emergency off device must be connected in such a way
that once the power supply or the activation of the power
supply has been interrupted, no situations can arise that
endanger persons or property.
−
Install the main switch and emergency off device in an easily
accessible location close to the device.
−
Label the main switch and emergency off device so that they
can be clearly associated with the device.
2.4.7 Signs and safety warnings
The signs and safety warnings on and around the device are part
of the safety equipment. They are described in chapter 2.5.
•
In accordance with the maintenance plan (see page 126), their
presence and legibility should be checked regularly.
•
Replace them if they are damaged.
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December 2013