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important while measuring currents above 5 amps. The AT6002 is a popular choice for a second set of
probes.
For very large currents and large bus bars, we offer the AT6012. The AT6012 is a "flex" type probe. It
consists of a flexible tube about 0.4 inches in diameter and 24 inches long (a 36 inch version is also
available). The ends of this tube snap together around a conductor to sense the current. Flex probes
are very handy when space is tight, when multiple cables must be clamped around, or when a bus bar
is present. They are also lighter than clamp-on probes. The flexible tube creates a circle with an inside
diameter of 7 inches. This circle can be deformed into various shapes to accomplish your
measurement goals. The basic accuracy of the flex probe is good, measuring from 1 to 6000 amps
(across two ranges) within 1% accuracy. However, readings can vary as much as 2% depending on
the position of the flex probe while connected. Position the flexible portion of the probe around the
conductor so that the cable from the probe drops straight down and the place where the ends snap
together is at a right angle with the conductor and not touching it. The frequency response of flex
probes is very good, but phase shift increases with frequency. Our AT6012 is powered by the meter,
so no batteries are required.
You must use added caution when connecting an AT6012 series current probe around
exposed conductors and bus bars since you must pull the tube around the conductor and thus
get your hands and arms closer to it than when using HA series clamp-on type current probes.
Wise practice dictates that you use high insulation protection on hands and forearms in these
circumstances or deactivate the circuit.
The AT6000 probe is used for AC current measurements from 5 to 400 amps and DC measurements
from 5 to 600 amps. It offers accuracy of 2%
1 amp from 5 - 400 amps and 3% accuracy for DC from
400-600 amps. This probe relies on Hall Effect technology and its output varies slightly over time.
Therefore, a zero level adjustment is provided on the probe's handle for initial zeroing before each
measurement session. The probe can clamp around one cable up to 1.18 inch diameter or two cables
of up to 0.95" diameter.
Unlike other manufacturers’ DC probes, ours do not require batteries for them
to run.
New probes and adapters are introduced regularly, so if you have a special need, give us a call.
Please Note: Always inspect the metal surfaces of clamp-on probes before use. Clean them
with a rag or sand them with fine sand paper and then slightly oil the surface. Any dirt or rust
will affect the accuracy of the measurements!
Connections to ATPOL II
Voltage test leads plug into the top end of ATPOL II. Each test lead of the Deluxe Voltage Test Lead
set is labeled (V
N
, V
1
, V
2
, or V
3
) and each jack is similarly labeled (V
N
, V
1
, V
2
, or V
3
).
Note: The V
N
test lead is a different color from the other leads (black). Similarly, the V
N
jack on ATPOL II is a different color from the other ones (black). Connecting anything other
than neutral or ground to the V
N
jack can jeopardize your safety, the functioning of the unit, and
the accuracy of the unit.
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