BK Precision 4013DDS, Instruction Manual

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With the set up of 2.7.1, push the offset control. Rotate the offset knob from full CCW to full CW
and observe a waveform change from negative to positive level. The maximum DC plus peak is
limit to ±10V (un-terminated) or ±5V (50 ohms terminated).
2.7.3 Frequency
Connect a counter to the instrument output. Set the instrument controls as follows:
WAVEFORM ...................SINE
OFFSET ..........................OFF
ATTENUATOR................OUT
AMPLITUDE ...................MIDRANGE
DUTY CYCLE .................OFF
Change the frequency and range and read the counter indications. The reading should fall between
instrument specifications.
2.7.4 Sync Output
Connect the scope to the SYNC output. Use the set up of paragraph 2.7.1. Observe a square wave,
of no less than 2V amplitude, and with 50% symmetry.
2.7.5 Symmetry
With the set up of paragraph 2.7.1, select Square waveform and push the DUTY CYCLE ON
control. Rotate the DUTY CYCLE knob from full CCW to CW and observe a waveform symmetry
change .
Section 3
Operating Instructions
3.1 CONTROLS AND CONNECTORS
Front panel controls and connectors are shown in the front view illustration of the Model 4013.
Each operating control is described as follows:
1. POWER ON/OFF – Applies or removes AC power to the unit.
2. FREQUENCY – Selects the frequency of the output waveform.
3. RANGE SWITCHES – Multiply or divide by 10 the selected frequency for faster
setting.
4. WAVEFORM – Select Sine, Triangle and Square output.
5. OFFSET ON/OFF – Enables operation of the offset control.
6. OFFSET – Sets the DC offset level of the output waveform. The maximum peak plus DC
level is limited to ±10V (non terminated) or clipping of the waveform will occur.
7. OUTPUT LEVEL – Varies the amplitude of the selected waveform. The range is over 20dB.