BK Precision 4013DDS, Instruction Manual

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Model 4013DDS - Instruction Manual
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does not require special cooling when operated within conventional temperature limits. The
instrument includes a front feet tilt mechanism for optimum panel viewing angle.
2.4 POWER REQUIREMENTS
The Model 4013DDS can operate from 115/230 Vac, 50/60Hz. The maximum power consumption
is less than 25VA.
CAUTION: Before connecting the line cord to the AC mains, check the rear panel AC
line voltage indicator.
Applying a line voltage other than the indicated
voltage can destroy the AC line fuses. For continued fire protection, replace
fuses only with those of the specified voltage and current ratings.
Use only fuses of 0.5A SLO-BLO or IEC127 T type rated for 250V. The ac line fuse is located in
the Fuse Holder Assembly. To access the fuse, first disconnect the power cord and then remove the
fuse cartridge.
2.5 GROUNDING REQUIREMENTS
To minimize shock hazard, the instrument chassis and cabinet must be connected to an electrical
ground. This instrument is grounded through the ground conductor of the supplied, three-
conductor ac power cable. The power cable must be plugged into an approved three-conductor
electrical outlet.
WARNING: Do not alter the ground connection. Without the protective ground
connection, all accessible conductive parts (including control knobs) can
render an electric shock. The power jack and mating plug of the power
cable meet IEC safety standards.
2.6 SIGNAL CONNECTIONS
Use RG 58 coaxial cables for all input and output signals to and from the unit.
2.7 ACCEPTANCE CHECK
This acceptance check is a general verification of generator operation. Set the power on and allow a
15-minute warm-up period. Should a malfunction be found, refer to the Technical Service
information on page 6 of this manual.
2.7.1 Output Level
Connect an oscilloscope to the instrument output. Set the Model 4007 controls as follows:
WAVEFORM ...................SINE
FREQUENCY...................1 KHz
OFFSET ..........................OFF
ATTENUATOR................OUT
AMPLITUDE ...................FULL CW
DUTY CYCLE .................OFF
Observe a 20V peak-to-peak sine wave on the scope display. Connect a 50 ohms feed through
between the unit and a oscilloscope, and verify a 10V peak-to-peak waveform on display. Change
the amplitude control position to decrease the output voltage. Push the attenuator pushbutton and
measure an attenuation factor of 10 for the 20 dB step. Repeat paragraph 2.7.1 for triangle and square
wave output.
2.7.2 Offset Control