Bruker DektakXT, Руководство пользователя

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Safety 1-5
General Lockout/Tagout Procedures
This section describes general lockout/tagout procedures for electrical systems and pressurized air
lines. Contact your internal safety and health representative for more detailed procedures for your
facility, as well as for training and authorization/certification requirements.
Lockout Procedure
1 Notify all affected and other persons of intended lockout.
2 Turn off the computer following the normal shutdown procedure.
3 Unplug the first cord on the power supply adapter from its receptacle on the signal processor on the back of
the DektakXT stylus profiler.
4 Unplug the second cord on the power supply adapter from its wall outlet.
5 Place the power supply adapter with its two disconnected cords in a secure location. This is the equivalent
of a lockout/tagout procedure on a more complex system.
6 Close the air regulator toggle switch below the vibration isolation table.
7 Dissipate any residual pressure following the appropriate dissipation procedure (for example, opening a
bleed valve).
8 Verify that all personnel are clear of the hazard zone.
9 Attempt to restart the equipment. If properly locked out the equipment should not be able to be started.
10 Use a voltmeter and make voltage measurements to verify that all electrical sources have been locked out.
If properly locked out, no voltage should be present. Check the reading on supply line pressure gauges to
verify that no pressure exists within the system. If properly locked out, no pressure should exist.
11 Perform maintenance work.
Returning the System to Operation
1 Verify that all personnel, materials, tools, and test equipment are clear of the hazard zone.
2 Plug the first cord on the power supply adapter into its receptacle on the signal processor on the back of
the DektakXT stylus profiler.
3 Plug the second cord on the power supply adapter into a wall outlet.
4 Open the air regulator toggle switch to repressurize the vibration isolation table.
5 Turn on the computer following the normal startup procedure.
6 Notify all affected and other persons that the lockout has been cleared and the equipment is back in
operation.
Electrical Task Classification
Each task involving electrical operations is evaluated for severity and classified according to the
criteria outlined in Table 1-2. These criteria categorize electrical hazards into four types, ranging
from Type 1 (de-energized) to Type 4 (fully energized and exposure required). Lockout/tagout
requirements, including training requirements, are based on the type of hazard present.
•
All operator tasks are classified as Type 1 or 2.
•
Only qualified service personnel should perform Type 3 or 4 tasks, following established
Bruker service policies.