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Larry
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Text excerpt from page 10 (click to view)
Section 111 Figure 3-1
Model 297A
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MP-S-964
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1. POWER ON applies power to the 297A. 2. CW SWEEP allows clockwise sweep.
3. CCW SWEEP allows counterclockwise sweep.
4. CW LIMIT limits amount of clockwise rotation of the output shaft.
5. CCW LIMIT limits amount of counterclockwise rotation of the output shaft. 6. Manual Sweep permits manual rotation of output shaft (speed changer in NEUTRAL).
8. Potentiometer Speed Changer: U s e s the full range of the OUTPUT LEVEL POtentiometer for 50 rotations of the output shaft when in FULL SWEEP. SHORT SWEEP gives a much larger change of sweep voltage for a given output shaft rotation. Potentiometer Speed Changer cannot be set to SHORT SWEEP when Speed Changer (7) is in HIGH SPEED. 9. SWEEP OUTPUT provides the sweep output voltage for use with a recorder o r other instrument. 10. OUTPUT LEVEL adjusts the output voltage to any value between 0 and 15 volts for any output shaft position. Allows the operator to s e t a reference level.
7. Speed Changer: Permits output shaft rotation of 10 rpm when in HIGH SPEED, output shaft rotation of 1 rpm in LOW SPEED.
