==== Template METIS_gen_cal_LampOff ====
=== Input parameters ===
  * Temperature T1
  * INS MODE
  * WCU configuration (e.g. grid in WCU FP1)

=== Procedure ===
  * Activate WCU extended blackbody source (wait for warm-up time)
  * set WCU BB to temperature T1, wait until warmed up
    * while WCU is warming up
      * setup CFO for observation in INS MODE
      * setup WCU
  * close WCU input / output shutters
  * take a background measurement
  * open WCU shutters
