109
Using the Switched Probe
Connecting the 9299 Switched Probe
WARNING
• When the switch signal line plug is inserted into the terminal,
the TEST lamp may blink and high voltage may occur in the
measurement terminal or the probe tip. To avoid the risk of electric
shock, make sure to remove the measurement probe from the
measurement terminal before connecting the switch signal line plug
to the instrument.
• Do not press the push switch on the switched probe when
connecting and disconnecting the switched probe. Unintentional
high voltage may be generated which may cause electric shock or
damage to the connected equipment.
IMPORTANT
When the switched probe is used, one more measurement probe is required.
Prepare the extra L2200 (black).
Connecting the Switched Probe
1
Connect the 9299 switch signal line plug
to the EXT.SW terminal on the front of the
instrument. (Insert the plug completely
until the metal part of the signal line plug is
not exposed.)
When the TEST lamp blinks, press the push switch
of the 9299 or the STOP key of the ST5520/
ST5520-01 to turn off the TEST lamp.
Switch signal line plug
EXT.SW
2
Check that the TEST lamp is off and then
connect the 9299 measurement plug to
the HIGH terminal on the front panel.
Measurement
plug (9299)
HIGH
3
Connect the L2200 Test Lead (black) to
the LOW terminal on the front panel.
Test lead
(L2200)
LOW
4
Press the push switch of the switched
probe and check that the TEST lamp of
the instrument blinks.
10
9
8
7
6
5
4
3
2
1
Appx. Ind.
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