10 TEGAM WAY • GENEVA, OHIO 44041 • 440
-
466
-
6100 • FAX 440
-
466
-
6110
•
3-3
OPERATING INSTRUCTIONS
NOTE: The amount of current available for charging the
battery decreases as lower resistance ranges are selected. In
the 2 m
Ω
range, the current supplied to the resistance under
test exceeds the charging current, and the battery will be
drained.
To obtain the best accuracy, allow the R1L-B to warm up for
15 minutes on the 20
Ω
range before making measurements.
Even if in battery operation, this will not cause appreciable
battery discharge.
Using the Kelvin-Clip cables
Plug one Kelvin-Clip cable dual banana plug across the +E
and +I binding posts, and plug the other Kelvin-Clip cable
dual banana plug across the -E and -I binding posts. Note
that in both cases, the small "I" marked on the dual banana
plug should go into the respective I binding post.
If Kelvin-Clip cables are not used, a pair of shielded cables
may be utilized. As occurs in the Kelvin-Clip cables in the
above paragraph, one cable should have its shield connected
to the “+I” binding post and its center conductor connected
to the +E binding post. Similarly, the other cable should
have its shield connected to the -I binding post and its
center conductor to the -E binding post. It is also
recommended that the resistance of the cables should not
exceed 1
Ω
.
NOTE: Particularly in the 2 m
Ω
range, where a test current
of approximately 1 . 5 A is used, excessive lead resistance
will prevent an accurate measurement.
Set the Range Switch to the desired measurement range and
read the resistance on the liquid crystal display. If the
resistance is higher than the selected range, the display will
show a "1" and three blank digits, indicating over-range. The
decimal point will also appear in the proper location for the
selected range.
