Simpson 2 Series - Test Lead Inspection; Overload Protection; Size and Weight

Operating Instructions
The wire is very finely stranded and extra-flexible. Its
insulation is a special high-grade rubber which has far
more insulation strength than the highest voltages to which
your instrument will ever be subjected.
BATTERY REPLACEMENT NOTE.
When batteries reach the end of their useful life, they
should be replaced promptly. Failure to do so may result
in extensive damage to your Model 270 Series 2, due to
battery leakage, even though the battery may be advertised
as Leakproof“.
TEST LEAD INSPECTION
Periodic inspection of the test leads is recommended to
detect cuts, burns or other damage that could reduce the
insulation strength of the leads. When replacement is in-
dicated, ask your local distributor for catalog number 7500.
OVERLOAD PROTECTION
Your Model 270 Series 2, has been designed to minimize
the possibility of accidental damage due to overloads.
Specially produced diodes protect the movement from burn-
out or mechanical damage such as bent pointer even with
1000 times the normal current applied.
In addition a fuse is provided to help protect the circuitry
of your Model 270 Series 2 from damage due to overloads.
This protective combination will prevent serious damage to
your Model 270 Series 2 in most cases of accidental mis-
use. However, no overload protection system is completely
foolproof, and misapplication on high voltage circuits can
damage any VOM protected or not. Care and caution should
always be exercised to protect both you and your Model
270 Series 2.
SIZE AND WEIGHT
The Model 270 Series 2 measures 54" x 7° x 3-1/8”. It
weighs 3% pounds. 7