Simpson 2 Series - Front Panel; Range Switch; Function Switch

General Description
in our modern plants, where we use the best machines, tools
and test equipment that money can buy. It will, therefore,
take considerable abuse and still continue to function. How-
ever, it does contain a very precise instrument movement
and therefore, we urge that you treat it with the care it
deserves. If you will keep it clean, free from continuous
severe vibration, avoid dropping it and subjecting it to high
electrical overloads; the Model 270 Series 2 will give you
many years of trouble-free dependable service.
PHYSICAL
FRONT PANEL
The instrument has a large easy-to-read 4%½ meter at the
top of the front panel. Below the meter are three operating
controls and eight circuit jacks. All switch positions and
circuit jacks are deeply engraved with white lettering on
black phenolic to insure long time readability.
RANGE SWITCH
The range switch, in the center of the lower part of the
front panel, has 12 positions. It may be turned in either
direction to obtain any desired range and circuit position.
There are six voltage ranges for D.C. and six for A.C.,
six ranges for direct current, and three resistance ranges.
FUNCTION SWITCH
The function switch is located at the left hand side of the
lower part of the front panel. It has three positions: D. C.,
*D.C., and A.C. When direct current, D.C. voltage, or re-
sistance is to be measured, the function switch may be
4