1261B User Manual
Racal Instruments
Ó
1995
Configuring The 1261B 2-15
Connecting
Safety Ground
Omit this procedure if you do not intend to operate the 1261B at
frequencies greater than 63Hz. When operating the 1261B at
mains frequencies between 47 Hz and 63 Hz, use the Chassis
(Safety) Ground connection to connect the grounds of one or more
instruments to the mainframe. This ensures a common ground
connection between instruments.
NOTE
For your protection from electrical shock when
operating at mains frequencies greater than 63Hz,
connect the chassis safety ground terminal to
permanent earth ground. See Figure 2-11.
1.
Connect a 16 AWG (1.3mm² or larger) wire to the 8-32
chassis (safety) grounding screw using a toothed
grounding lug. The wire insulation must be green with a
yellow stripe or non-insulated (bare).
2. Attach the opposite end of the wire to
permanent earth ground using toothed
washers or a toothed lug.
Figure 2-9, Connecting Safety Ground
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