User manual

Fluke 190-104, Fluke 190-204
Users Manual
78
A
B
C
D
Figure 34. Parasitic capacitance between probes,
instrument and environment
Warning
To avoid electrical shock, always use the
insulation sleeve (Fig. 1 item 4e-7e) or the
probe tip when using the probe reference
(ground) lead. The voltage applied to the
reference lead is also present on the ground
ring near the probe tip, see Figure 35.
Figure 35. Probe Tip
M
MOTION/MOTOR CONTROLLER
DC BUS
DC BUS
DIGITAL
GROUND
+
-
A
D
Figure 36. Parasitic capacitance between analog and
digital reference