Well, you answered my question, namely how hot do the probes get. The EA35 draws slightly more power than the 2-01C but both are close to 2 Watts so probably probes with either will feel the same. I wanted to make sure the correct voltage setting for the EA34 was 6.3 Volts and evidently it is.
The handbook is full of warnings about the meter chassis and ground connections going to power line ground. I have a 3 to 2 adapter on the power plug to mine. Actually, I learned about this problem long ago when my main mentor blew his 410B up by grounding something.
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On 6/18/2024 6:51 AM, Chuck Harris wrote:
P = I x E
6.3V x 0.3A = 1.9W
The probe's body provides a bit of heat sinking, but the 2W has
to go somewhere.
Cradle your hand around a 2W resistor running full power, and
get back to me ;-)
Heat is the main reason why 410C's are always missing their AC
probes. The probe gets uncomfortably hot, so it gets removed
and stored in a safe place when it not being used.... never to
be found again.
The other reason the probes get removed and lost is they are
practically useless for everyday measurements. The probe body
is also the probe's grounded return lead. It isn't safe to
willy-nilly ground AC power circuits, as you have to do to use
this probe.
-Chuck Harris
--
Richard Knoppow
Los Angeles
WB6KBL
SKCC 19998
