Keysight U1253D Manual Del Usuario página 17

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3 Connect the red and black test leads to input
terminals V (red) and COM (black)
respectively.
4 Probe the test points and read the display.
5 If the reading is unstable or zero, press
to select division of input signal frequency by
100 (
accommodates a higher frequency range of
up to 20 MHz.
6 The signal is out of the U1253B frequency
measurement range of 20 MHz if the reading
is still unstable after
– Use the frequency counter for low voltage
WARNING
applications. Never use the frequency counter on
AC power line systems.
– For input more than 30 Vpp, you are required to
use frequency measurement mode available under
the current or voltage measurement instead of
frequency counter.
Keysight U1253B Quick Start Guide
will be shown on the display). This
step 5.
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