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TM 11-6625-1589-15-1
INSTALLATION
2-1 .
INTRODUCTION .
2-2 .
This section contains information and instructions necessary for installing
and shipping the Model 204C Oscillator .
Included are initial inspection procedures,
power and grounding requirements,
installation information ,
and instructions for
repackaging for shipment.
2-3 .
INITIAL INSPECTION .
2-4 .
This instrument was carefully inspected both mechanically and electrically
before shipment.
It
should be physically free of mars or scratches and in perfect
electrical order upon receipt.
To confirm this , the instrument should be inspected
for physical damage that occurred in transit .
If the
instrument was damaged in
transit ,
refer to paragraph 1-3 .
Check for supplied accessories ,
and test
the electrical performance of the
instrument using the procedure outlined in
Paragraph 5-4
.
2-5 .
POWER REQUIREMENTS.
2-6 . The standard Model 204C will operate from
any source of 115 or 230 volts
( + 10% ) , at 50 to
400
Hz .
With the instrument disconnected from
the ac
power
source ,
move the voltage selector switch ( located on the rear panel ) so the desig
nation appearing on the switch matches the nominal voltage of the power source to
be used .
Power dissipation is less than 5 watts .
2-7 .
Line voltage requirements for Option 02 ( Rechargeable Nickel - Cadmium
battery supply are identical to those given in Paragraph 2-6 for the standard Model
204C .
2-9 .
To protect operating personnel , the National Electrical Manufacturer's
Association ( NEMA) recommends that the instrument cabinet be grounded .
The
standard Model 204C is equipped with a three - conductor power cable which ,
when
plugged into an appropriate receptacle,
grounds the instrument.
The offset pin on
the power cable three - prong connector is the ground wire .
2-10 .
To preserve the protection feature when operating the instrument from
a
two - contact outlet , use a three - prong to two - prong adapter and connect the green
pigtail on the adapter to ground .
2-1
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