Mechanical Installation; 2.2 Electrical Installation; Electrical Acceptance Check - Wavetek 145 Instruction Manual

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
2.2.1
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, autotramformers, 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 I ine 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 90 to 105 0.5 amp
120 108 to 126 0.5 amp
220 198 to 231 0.25 amp
240
216 to 252 0.25 amp
1.
Open fuse holder cover door and rotate fuse pull to
left to remove the fuse.
2.
3.
4.
2
SECTION
INSTALLATION
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.
Rotate the fuse-pull back into the normal position
and insert the correct fuse into the fuse holder. Close
the cover door.
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 50n shielded cables equipped with fe-
male BNC connectors to distribute all input and output
signals.
2.3 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.
Refer to table 1-1 for equipment required for this procedure.
Preset the generator front panel controls as follows:
Set up the oscilloscope, Model 145 and external generator
as shown in figure 2-1.
Control Position
Dial . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.0
GENERATOR MODE . . . . . . . . . . . . . . . . . . . . CONT
TRIGGER LEVEL . . . . . . . . . . . . . . . . . . . . 9 o'clock
PULSE DELAY . . . . . . . . . . . . . . . . . . . . 1
µs
I 10
µs
PULSE DELAY VARIABLE . . . . . . . . . . . . 12 o'clock
NORMAL/DOUBLE/DELAYED . . . . . . . . . . NORMAL
PULSE WIDTH . . . . . . . . . . . . . . . . . . . . . . . . . OFF
PULSE WIDTH VARIABLE . . . . . . . . . . . . . 12 o'clock
ATTENUATION . . . . . . . . . . . . . . . . . . . . . . . . . . 0
ATTENUATION VERNIER . . . . . . . . . . . . . . . Full cw
FUNCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
f"l . J
DC OFFSET . . . . . . . . . . . . . . . . . . . . . . . . . . . OFF
TRIGGER START/STOP . . . . . . . . . . . . . . . . . 0° CAL
FREQ/PERIOD MUL T . . . . . . . . . . . . . . . . . . . . . 1
K
VERNIER . . . . . . . . . . . . . . . . . . . . . . . . . . . Full cw
2-1