Fluke 199C/S FE 192,196,199 C Users Manual - Page 84
digital reference, Wrong connection of reference leads
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Fluke 192B - 196B/C - 199B/C Users Manual ANALOG INPUT DIGITAL CONTROLLER ANALOG GROUND DIGITAL GROUND Figure 42. Parasitic capacitance between probes, instrument and environment MOTION/MOTOR CONTROLLER DC BUS + DIGITAL GROUND M - DC BUS Figure 43. Parasitic capacitance between analog and digital reference Figure 44. Correct connection of reference leads ANALOG INPUT DIGITAL CONTROLLER ANALOG GROUND DIGITAL GROUND Figure 45. Wrong connection of reference leads Noise that is picked up by reference lead B can be transmitted by parasitic capacitance to the analog input amplifier. 76
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Fluke 192B - 196B/C - 199B/C
Users Manual
76
Figure 42. Parasitic capacitance between probes,
instrument and environment
M
MOTION/MOTOR CONTROLLER
DC BUS
DC BUS
DIGITAL
GROUND
+
-
Figure 43. Parasitic capacitance between analog and
digital reference
ANALOG INPUT
DIGITAL CONTROLLER
ANALOG
GROUND
DIGITAL
GROUND
Figure 44. Correct connection of reference leads
ANALOG INPUT
DIGITAL CONTROLLER
ANALOG
GROUND
DIGITAL
GROUND
Figure 45. Wrong connection of reference leads
Noise that is picked up by reference lead B can be
transmitted by parasitic capacitance to the analog input
amplifier.