2-4 WF1946B
2.2 Power source and grounding
Grounding
The WF1946B uses a line filter that incorporates the circuit below.
This equipment must be grounded in order to prevent electric shock accidents.
Confirm the protective ground terminal is connected to ground before connecting the
equipment for measurements. The WF1946B protective ground is connected to ground by
the 3-prong power supply plug.
Use the supplied power supply cable to connect to a 3-terminal power outlet that has a
protective ground contact.
Line filter
The WF1946B uses a line filter that incorporates the circuit below.
Because the maximum leakage current is 0.5 mArms at 250 V/62 Hz, touching a metallic part of the
WF1946B could cause an electric shock.
For your safety, be sure to ground the device.
Power source
Be sure to observe the following in order to prevent damage to the equipment.
Confirm the power source voltage is within the range specified for the WF1946B.
!! WARNING
Fuse
To power switch
Chassis
! CAUTION
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