Facility 241:  3' X 3' Cryopumped Vacuum

 

Description: This cryopumped facility is a horizontal loading thermal vacuum chamber used for thermal vacuum testing and bakeout of test articles. The payload is mounted on a plate which is supported by rails welded to the chamber wall..

 

Mode of Operation: After the test article is instrumented with thermocouples and placed in the chamber, ground support equipment cabling is connected through the penetration plate, and ambient functional checks are performed. After roughing down the chamber with the rotary piston mechanical pump, ultimate pressure is achieved with the cryopump. A main valve allows test set up while the pumping system is being established.

 

Parameters:

Test pressure:                            <1 x 10-5 Torr (<2x10-7 psi)

Shroud temperature:               -140°C to +110°C (-220°F to +230°F)

Pumping speed for N2:             1,500 L/sec (3,200 cfm)

 

Physical Characteristics:

Test volume:                                0.91 m diameter x 0.91 m L (3’ x 3’)

Std. electrical feedthroughs:     61-pin, 37-pin, 7-pin, 4-pin, RF

Max P/L weight:                          840 kg (1854 lbs)

 

Integral Instrumentation:

Pressure:                                     Convectron - Atm to 0.13 Pa (10-3 Torr)

Ion gauge                                    -10-3 Torr to ultimate

Payload temperature:               36 channels

Contamination monitor:          TQCM, cold finger, scavenger plate

 

Auxiliary Equipment: Portable thermal systems are available to control base plates, the thermoelectric quartz crystal microbalance (TQCM), and contamination mirrors.

 

Rental Rate:  Inquire