Nikon XT V 160, Руководство оператора

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XT V 160 X-ray System
XTM0011-F2
13
2 Safety systems
The radiation enclosure is fully lined with lead to absorb stray X-rays. The door is lead lined
and fitted with double safety interlocks, preventing X-rays from being generated when the
door is opened. The X-ray controller has interlock control circuitry to ensure that all interlock
switches are made before there can be any generation of X-rays.
Report any safety system failure to Nikon Metrology and under no
circumstances override safety interlocks.
The interlocks include:
•
X-ray controller key.
•
Vacuum sensing circuit to ensure that the vacuum is at an acceptable level.
•
Cabinet door interlock switches.
•
External warning lamp system.
•
Coolant flow sensing.
Interlocks should under no circumstances be modified, tampered with
or bypassed.
The interlock system should only be repaired, replaced or adjusted by
qualified personnel.
During manufacture, the cabinet and all associated components undergo a radiation survey
to ensure they comply with the stated specification. The system is then issued with a
radiation certificate.
Periodical radiation checks must be carried out either by Nikon Metrology during annual
service or by your own staff provided they are competent and appropriately trained and have
access to the necessary measuring instruments. In some territories persons making such
measurements are required to be licensed or certified by a national body.
If the equipment is used in a manner not specified by the
manufacturer, the protection provided by the equipment may be
impaired.
With regards to the X-ray hazard, the performance level of the safety-related parts of the
control system (SRP/CS) achieves PL E against EN 13849-1:2008.
2.1 X-ray status indication
X-ray status indicators are mounted on the front of the cabinet or on a signal tower mounted
on top, in clear view of the operator and nearby personnel, to indicate the state of the X-ray
system.
The warning lamps have failure detection circuitry. If the lamps are damaged, or removed
from the system, X-ray generation will be prevented. Lamp failure will be indicated in the
system status panel in Inspect-X.
There are two labelled indicators, or warning lamps: