This plot monitors the counts generated by the halogen lamp in ZIMPOL imaging flats. (A lamp flux in ADU/sec is not provided by the pipeline).
The following setups are monitored:

<ul>
<li> V filter,   DIT, NDIT = 4.0, 10 and 8.0, 8
<li> N_R filter, DIT, NDIT = 2.0, 20 and 2.0, 8
<li> N_I filter, DIT, NDIT = 2.0, 40 and 2.0, 8
</ul>