Advanced Measurement Technology 273A, User Manual

Page: 30 / 70

24
Model 273A Potentiostat/Galvanostat User’s Manual
c. The SCAN 1 indicator (scan status display) will light and remain lighted for the 50 s it
takes to complete the first leg of the scan at 20 mV/s. As the scan advances, the display
will indicate the increasing potential and current.
d. The E/I 2 indicator (scan status display) will flash once, indicating that the scan has
reached 1 V, the programmed vertex potential.
e. The DELAY 2 indicator (scan status display) will light and remain lighted for 10 s, the
programmed delay interval. The displayed potential (1 V) and current (10 µA) will
remain constant.
f. The SCAN 2 indicator (scan status display) will light and remain lighted for the 50 s it
takes to complete the second leg of the scan at 20 mV/s. As the scan advances, the
display will indicate the decreasing potential and current.
g. The E/I 3 indicator will light and remain lighted, indicating that the scan is complete.
17. Set the CELL ENABLE switch to OFF.
18. Press the CELL ON/OFF key, establishing the Cell OFF state. The associated indicator light
should extinguish.
19. Set the Model 273A POWER ON/OFF switch to OFF.
This completes the initial checks. If the indicated behavior was observed, the user can be
reasonably confident that all circuits up to and including the electrometer are functioning
normally.