TA041 User’s Manual
Pico Technology
2
© Copyright Pico Technology 2008–2012
DO141-4
2.
General safety summary
Please review the following safety precautions to avoid injury and prevent damage
to this probe or any products that are connected to it.
Observe maximum working voltage
To avoid any injury, do not use the probe above 1000 V RMS CAT III between each
input lead and earth or between the two input leads. This voltage rating applies
to both the 1:10 and the 1:100 settings.
Ground the probe
This probe is grounded with the shell of the BNC connector and an auxiliary
grounding terminal.
WARNING
Before making connections to the input leads of this probe,
ensure that its output lead is grounded. You may do this either
by connecting the BNC shell to a grounded measurement
instrument, or by connecting the auxiliary grounding terminal to
a reliable ground point. Read the next paragraph for further
advice.
You must verify that the probe is securely grounded before connecting the probe
input leads. Some types of measuring instrument, such as a USB oscilloscope
connected to a laptop, are unlikely to be grounded even if the laptop is powered
from the mains. Bench-top oscilloscopes are usually grounded, but in some cases
may have been isolated from ground. A USB oscilloscope connected to a desktop
computer is usually grounded. In any case, do not assume that the measurement
instrument is grounded.
Always verify the ground connection for yourself
before connecting the probe input leads.
Use fused test prods if necessary
If this probe is intended to use for measurements in circuits of INSTALLATION
CATEGORY III, it should incorporate with fused test prods.
Do not operate without covers
To avoid electric shock or fire hazard, do not operate this probe with the covers
removed.
Do not operate in wet or damp conditions
To avoid electric shock, do not operate this probe in wet or damp conditions.
Do not operate in explosive atmosphere
To avoid injury or fire hazard, do not operate this probe in an explosive
atmosphere.