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Page Title: SECTION 2. OPERATING PROCEDURE
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OPERATING PROCEDURE
2-1. POWER REQUIREMENTS.
The Type 1531 Strobotac operates from a line frequency of 50 to
400 cycles, and from either a 105- to 125-volt, 195- to 235-volt, or 210-
to 250-volt line input as noted on the plate located just above the power
cord, The instrument is normally supplied for either 105- to 125-volt
or 195- to 235-volt operation, but can be modified for 210- to 250-volt
operation (refer to paragraph 4.4.3 and Figure 4-7).
2-2. OPENING THE CASE.
To open the case for operation:
a. Set the instrument on a flat surface so that it is resting on its
rubber feet.
b. Unlock the case by sliding the two slide pins (one on each side)
away from the handle. (It may be necessary to push down on the top of
the instrument to release these pins.)
c. Using the palm of the hand, push the handle down as far as
possible. With the other hand, swing the instrument to the desired angle.
Lower the instrument onto the rubber gasket by slowly releasing the
handle. The instrument will be held in position by its friction against
the gasket at any angle from vertical to about 30. However, since the
case is not locked in position, it may not stay in a tilted position under
severe vibration. If the instrument is to be hand-held, lower the case
into the cover and lock it in position by sliding the locking buttons to-
ward the handle.
2-3. CLOSING THE CASE.
Before closing the instrument, push the reflector down against the
panel with the transparent reflector cover facing up. Turn the range-
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