Tektronix 070-A830-51 Welding System User Manual


 
Performance Verification
4-28
AWG710 Service Manual
4. Push SETUP (front-panel)!Run Mode (bottom)!Enhanced (side).
The AWG710 Arbitrary Waveform Generator is set to enhanced mode.
5. Push VERTICAL MENU (front-panel)!Output (side)!Direct (side).
6. Load the AMP2.SEQ file.
Refer to Loading Files on page 4–10 for file loading procedures.
7. Push the RUN and CH1 output buttons.
The LEDs above the RUN button and CH1 output connector are on.
8. Do the following substeps to check the direct DA amplitude accuracy of
a 1 V amplitude setting:
a. Write the DMM reading as a positive voltage.
b. Push the FORCE EVENT button.
c. Write the DMM reading as a negative voltage.
d. Verify that the positive minus negative voltages fall within
1.0 V ± 0.022 V.
e. Push VERTICAL MENU (front-panel)!Amplitude (side).
f. Push 0, .,0, 2 and ENTER keys in this order or turn the general pur-
pose knob to set the amplitude to 0.020 V.
9. Do the following to check the direct DA amplitude accuracy of 20 mV
amplitude setting:
a. Push the FORCE EVENT button.
b. Write the DMM reading as a positive voltage.
c. Push the FORCE EVENT button.
d. Write the DMM reading as a negative voltage.
e. Verify that the positive minus negative voltages fall within
20 mV ± 2.4 mV.
10. Follow the substeps below to check the DC offset:
a. Push the FORCE EVENT button.
b. Check that the reading from the oscilloscope display is about
0 V ±10 mV.
11. Do the following substeps to change the connection to check the CH1
:
a. Push the CH1 output button.