====== QL ======
=== Quick UV Lamp Scan === 
QL routine is used for performing UV calibrations on the Brewer Spectrometer.  It is a test command that results in a UV scan being performed with a Lamp (rather than the sky) being the source of radiation.\\
 
The zenith prism is rotated to the UV dome, FW#2 is set to the "uv FW#2 Pos" recorded in the instrument constants file, FW#1 is set to the 3 position, the iris is opened, and the tracker is rotated to the sun (if the tracker is left powered during the test).\\
The operator is asked for lamp number, and lamp-diffuser separation (ECCC's Default setup uses 40cm), and the radiation intensity is measured in 1.5nm increments over the UVB range. 
Data is stored in a QLJJJYY.nnn file.\\

 For more information, please refer to the {{ :docs:uv_sop_2016_v2.1.pdf |UV SOP}}.


===== TL;DR UV Calibration=====
**Note**: Before using this section, please go through and understand how to perform the UV calibration via the {{ :docs:uv_sop_2016_v2.1.pdf |UV SOP}}

  - Run the pre-calibration command string. \\ For all instruments aside from MKIII:<code>b1frhgsldtrsap</code>For MKIII instruments only:<code>frhphgsldtrsap</code>
  - With the calibration lamp on, check and make sure the zenith offset is correct via <code>zetutututupzze2</code>
  - Run an RU or restart dosbox so it won't run out of string space in the middle.
  - Once the instrument is warmed up to temperature (Usually around 30c) run the uv calibration <code>zehgb1qlhgzeb1qlhgsl</code> or for MKIII instruments: <code>zehphgb1qlhgzeb1qlhgsl
</code>
  - For subsequent bulbs you can run the following without waiting for the bulb warmup (wait time included) <code>zew2hgb1qlhgzeb1qlhgsl</code> For MKIII instruments: <code>zew1hgb1qlhgzeb1qlhgsl</code>