off_cplus = -6.5
off_cminus = -2.5

set_slit(50.0)

open_valve()

set_pol_cplus(offset = off_cplus)
set_file('Dy_plus')
otf(start=1265, end=1355, time=3, delay=5)

set_pol_cminus(offset = off_cminus)
set_file('Dy_minus')
otf(start=1265, end=1355, time=3, delay=5)

set_pol_cminus(offset = off_cminus)
set_file('Dy_minus')
otf(start=1265, end=1355, time=3, delay=5)

set_pol_cplus(offset = off_cplus)
set_file('Dy_plus')
otf(start=1265, end=1355, time=3, delay=5)

close_valve()