Description

The white light source is a subrack unit containing two Ocean Optics HL-2000-HP-232 halogen light sources and a Moxa NPort 5400 serial device server. Serial ports 1&2 are used to control the light sources, while the remaining ports 3&4 are available on the rear side of the subrack.

This device is common to both sides of the telescope: in the future the 2 light sources will be used for DX and SX reflection on-axis sources. At the moment both sources are used on the DX side, one in reflection and one in transmission through the hologram

A spare unit with bulb exist and is stored Argos3U in ArgosCabinet?.

Known history

When	Where	Who	What
20150222	LBT	WG	Swapped the so-called DX and SX sources: now SX source is in reflection through CalUnitSystemDx, while DX source is in transmission through the hologram.
20150424	LBT	WG	Swapped back: now DX source is in reflection through CalUnitSystemDx, while SX source is in transmission through the hologram.

Know issues

When	What
20150222	The DX unit is not stable. It continuously reset to the default OFF state. This might be related to low temperature. After redirecting the cooling flow it worked again.

Current known config

SN	MAC	IP	Location
WLS	00:90:E8:29:10:41	192.168.26.93	LBT

Previous config

copy and paste from above when config is changed

Documentation

Use of the unit is described in this topic

General software instructions can be found in MPIA wiki page: https://svn.mpia.de/trac/gulli/argos/wiki/whiteLight

A user manual can be found in the LBT CAN archive: http://abell.as.arizona.edu/~hill/xlbt/lbtg/653g921a.pdf

The subrack schematics are also in the LBT CAN: http://abell.as.arizona.edu/~hill/xlbt/lbtg/653g920a.pdf

The Ocean Optics HL-2000-HP-232 light source manual is here: http://abell.as.arizona.edu/~hill/xlbt/lbtg/653g922a.pdf

Maintenance

decribe how to repair or replace a broken part

List of components devices

Reference

This topic is referred in: DayTime20160311, HowToSetUpForLUCIOffsetCalibration, HowToSetupCalibrationUnit, NightTime20150223

Topic label

	WhiteLightSource
	aowiki.arcetri.astro.it/ARGOSPublic/WhiteLightSource