6243/44 DC Voltage Current Source/Monitor Operation Manual
2.1.1 Front Panel Summary
2-4
10. CAT II: This indicates that the 6243/44 complies with the Installation safety
requirements for Category II as stipulated by IEC61010 regulations.
Installation category (overvoltage category): Classification of parts
of installation systems or circuits with standardized limits for tran-
sient overvoltages, dependent on the nominal line voltage to earth.
11. Lock screw holes for blocking I/O terminals (6244 only):
Screw holes for the accessory (A01046) lock.
To attach the accessory, refer to the instructions provided.
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