LCO_Cleanroom_Instructions

LCO Cleanroom Instructions

A more detailed description, including plan drawings, is at http://baade-clay.org/0cleanroom/LCO_Cleanroom.html.

Unpacking area

Enter the clean lab unpacking area through a door from the parking lot side or through the large roll-up door by the dock lift. Use this area to unpack your equipment and for temporary storage while you're working on your instrument.

The dock lift provides a no-step transition from your truck to the lab. There is a narrow gap between the lift and the unpacking area floor, so be careful if you have small wheels on your carts. Inside the floor is flat throughout.

A hoist with a 3-ton lift capacity riding on a non-motorized trolley may help with unpacking your equipment.

Clean bay

This is the larger interior lab area. Please keep this area clean by wearing shoe covers and keeping the doors closed.

Inside are a 3-ton hoist on a motorized trolley to help assemble your instruments, two ladders that should never leave the clean bay, a flammables storage cabinet, and a two-section class 10,000 clean tent. A table, chair, shelf, cart, and laminar flow bench are in the clean tent.

The clean tent sections may be separated by unhooking the four latches (two can be seen in the photo at left) and releasing the caster brakes. This is most easily done with two people. Moving the large section to the right (in this photo) provides enough space to roll an instrument into the clean space.Mind the hoist and the electric power cable at the back of the room when moving the clean tent.

The hoist travels in only one dimension, along the room centerline.

Each section of the clean tent has lights, fans, and ionizing bars. On-off switches are on the outermost vertical posts nearest the doorways on each section. The top switch is for the lights, the bottom one is for the fans.

Turning on the fans also turns on the ionizing bars (note the green power lights on the ionizing bars).

Ionizing bars have green power lights; check them.

117 VAC 60 hz electrical outlets are available on the clean tent posts near the back wall. These are on the same circuits that power the fans, lights, and ionizing bars in the clean tent so we recommend using them for low-load accessories.

There are three power outlets in the middle of the back wall near the floor. Left to right in this photo, we have 117 VAC 30 A 60 Hz 1-phase for instrument power, 208 VAC 30 A 60 Hz 3-phase for the FIRE spectrograph compressor, and 208 VAC 20 A 60 Hz 1-phase for the FIRE chiller (there are other outlets for the FIRE circuits in the clean bay).

We suggest that you draw instrument power from the leftmost of these outlets, as if you were plugging in at the telescope. The connector is a NEMA L5-30 turnlock style.

Also available on the back wall are two 117 VAC 20 A 60 Hz 1-phase circuits with US household style duplex outlets that can be used for vacuum pumps and computer equipment. You should probably not plug both computers and the vacuum pump in to the same outlet pair.

Revisions

Rev	Description	Editor

2010-02-05	First draft	AU