Wavetek 143 - Page 9

2.1 MECHANICAL INSTALLATION
After unpacking the instrument, visually inspect all external
parts for possible damage to connectors, surface areas, etc.
If damage is discovered, file a claim with the carrier who
transported the unit. The shipping container and packing
material should be saved in case reshipment is required.
2.2 ELECTRICAL INSTALLATION
22] Power Connection
WARNING
To preclude injury or death due to shock, the
third wire earth ground must be continuous to
the facility power outlet. Before connecting to
the facility power outlet, examine extension
cords, autotransformers, etc., between the in-
strument and the facility power outlet for a
continuous earth ground path. The earth ground
path can be identified at the plug on the instru-
ment power cord; of the three terminals, the
earth ground terminal is the nonmatching shape,
usually cylindrical.
CAUTION
To prevent damage to the instrument, check for
proper match of line and instrument voltage
and proper fuse type and rating.
NOTE
Unless otherwise specified at the time of pur-
chase, this instrument was shipped from the
factory with the power transformer connected
for operation on a 108 to 132 Vac line supply
and with a 0.5 amp slow blow fuse.
Conversion to other input voltages requires a change in rear
panel fuse-holder voltage card position and slow blow fuse
according to the following table and procedure.
Card Position Input Vac Fuse
100 90to105 0.5 amp
120 108 to 126 0.5 amp
220 198 to 231 0.25 amp
240 216 to 252 0.25 amp
SECTION
INSTALLATION
ης Open fuse holder cover door and rotate fuse pull to
left to remove the fuse.
2. Select operating voltage by orienting the printed
circuit board to position the desired voltage on the
top left side. Push the board firmly into its module slot.
ok Rotate the fuse-pull back into the normal position
and insert the correct fuse into the fuse holder. Close
the cover door.
4. Connect the ac line cord to the mating connector at
the rear of the unit and the power source.
2.2.2 Signal Connections
Use 3 foot RG58U 5022 shielded cables equipped with fe-
male BNC connectors to distribute all input and output
signals.
23 ELECTRICAL ACCEPTANCE CHECK
This checkout procedure is a general verification of generator
operation. Should a malfunction be found, refer to the war-
ranty in the front of this manual.
A two channel oscilloscope, four 3 foot 5022 coax cables
with female BNC connectors, a coax tee connector and a
function generator are required for this procedure.
Preset the generator front panel controls as follows:
Control Position
Die — kenn 1.0
GENERATOR МОРЕ LE πο. CONT
TRIGGER: LEVEL Е ЯЗ 8 9 o'clock
TRIGGER:START/S TOPA aan e πλ... 0° CAL
ATTENUATION ΟΟΣΑ ας. 0
ATTENUATION VERNER МА Full cw
FUNCTION Ес 8 ης
БСОБЕФЕ СЕЗЕ осу. rias to CRRA E E ake OFF
SYMMETRY ЖЕСЕ bo tr ye eran πω OFF
FREQUENCY MULT 222» лылы р 1K
VERNIERO УЫЗ 8 Full cw
Set up the oscilloscope, Model 143 and external generator
as shown in figure 2-1.
2-1