Wavetek 182A, Инструкция по эксплуатации

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2.1 MECHANICAL INSTALLATION
After unpacking the instrument, visually inspect all
external parts for possible damage to connectors, sur­
face areas, etc. I f 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 in
j
ury or death due to shock,
the third wire earth ground must be con·
tinuous to the facility power outlet.
Before connecting to the facility power
outlet, examine extension cords, auto·
transformers, etc., between the Instru·
ment and the facility power outlet for a
continuous earth ground path. The earth
ground path can be identified at the
plug on the instrument power cord; of
the three terminals, the earth ground
terminal Is the non matching shape,
usually cylindrical.
CAUTION
To prevent damage to the instrument,
check for proper match of line and instru­
ment voltage and proper fuse type and
rating.
NOTE
Unless otherwise specified at the time of
purchase, this instrument was shipped
from the factory for operation on a 90 to
126 Vac line supply and with a 114 amp slow
blow fuse. Instruments configured for 198
to 252 Vac have a 118 amp slow blow fuse.
Select the appropriate fuse and 115 or 230
switch position at the rear panel when
changing power sources.
2.2.2 Signal Connections
Use 3 foot RG58U 50n shielded cables equipped with
female BNC connectors to distribute all input and out­
put signals.
SECTION
2
INSTALLATION
2.3 ELECTRICAL ACCEPTANCE CHECK
This checkout procedure is a general verification of
generator operation. Should a malfunction be found,
refer to the warranty in the front of this manual.
A two channel oscilloscope, four 3 foot son coax
cables with female BNC connectors, a coax tee con­
nector and an additional function generator are re­
quired for this procedure.
Preset the generator front panel controls as follows:
Control Position
Dial... . ............................ 2.0
MODE ........................ CONT (released)
FUNCTION. .
. . . . . . . . . . . . . . . . . . . . . . . . . . .. ru
DC OFFSET. . . ................... OFF (ccw)
AMPLITUDE ...................... MAX (cw)
FREQUENCY MULTIPLIER ................. x 1 K
Set up the oscilloscope, Model 182A and external
function generator as shown in figure 2-1 and perform
the steps in table 2-1.
MODEL 182A
TIL OUT
OSCILLOSCOPE
VCG
IN
son
D
•
OUT
±dc
(LO) (HI)
CH1
FUNCTION GENERATOR
OR
VOLTAGE SOURCE
(INITIALLY OFF)
Figure 2·1. First Setup
CH2
SYNC
2.4 CHANGING THE OUTPUT IMPEDANCE
T he output impedance is normally:
HI 10V pop (50n source) into 50n.
LO 1 V pop (50n source) into 50n .
Amplitude is normally variable over 30 dB with - 50 dB
lowest possible amplitude.
2-1