User Manual

DO143-1 © Copyright Pico Technology 2008 7
8. Derating curve
The derating curve for absolute maximum input voltage in common mode is as
follows:
700
1000
1000
150
100
1000
10000
1.E+06 1.E+07 1.E+08
Frequency (Hz)
Voltage (V RMS)
9. Test procedure
a. Connect the BNC output connector to the vertical input of a general-purpose
oscilloscope.
b. To install four AA cells or connect an appropriate mains adaptor or power lead
to the correct line voltage.
c. Set the oscilloscope input coupling to DC and 1 V/div. Center the trace on
the display.
d. Connect the inputs of the probe to power lines.
e. Set the range of the probe to 1/100 or 1/200.
f. A 50 Hz / 60 Hz sine-wave of 1 V amplitude will be displayed on the screen of
the oscilloscope. This means the probe is working properly.
10. Cleaning
Use a soft cloth to clean the probe, taking care not to cause damage.
a. Do not immerse the probe.
b. Do not use abrasive cleaners.
c. Do not use chemicals contains benzene or similar solvents.