
Table 2-2.  Calibration Procedure (continued)
TEST  | TESTED  | TEST POINTS  | 
  | TEST SEQUENCE AND ADJUSTMENTS  | EXPECTED  | |||
  | VARIABLE  | 
  | 
  | 
  | 
  | 
  | RESULTS  | |
Power  | V(OUT) | 
  | a.  | 
  | Perform   | 30.2A 7.55V for  | ||
Limit  | I(OUT) | 
  | 
  | 
  | proceeding.  | CC operation  | ||
Adjust.  | 
  | 
  | 
  | b.  | 
  | Connect the unit to the ac power line via the  | (6023A)  | |
  | 
  | 
  | 
  | 
  | 
  | external variable   | 10.2A, 23V for  | |
  | 
  | 
  | 
  | 
  | 
  | to nominal line voltage.  | ||
  | 
  | 
  | 
  | c.  | Connect a 0.25Ω, 250W (6023A), 2.3Ω,  | CC operation  | ||
  | 
  | 
  | 
  | 
  | 
  | 250W (6028A) resistor across the unit's output  | (6028A)  | |
  | 
  | 
  | 
  | 
  | 
  | and turn on ac power.  | 
  | |
  | 
  | 
  | 
  | d.  | Set voltage control to 9V (6023A) 9V≥ 3V  | 
  | ||
  | 
  | 
  | 
  | 
  | 
  | (6028A) and current control to 30.2A  | 
  | |
  | 
  | 
  | 
  | 
  | 
  | (6023A), 10.2A (6028A)  | 
  | |
  | 
  | 
  | 
  | e.  | 
  | Set   | 
  | |
  | 
  | 
  | 
  | 
  | 
  | voltage.  | 
  | |
  | 
  | 
  | 
  | f.  | 
  | Turn A2R25 fully counterclockwise.  | 
  | |
  | 
  | 
  | 
  | g.  | Slowly adjust A2R25 clockwise until CC  | 
  | ||
  | 
  | 
  | 
  | 
  | 
  | LED just lights.  | 
  | |
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
Figure 2-1.  Common Mode Setup
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