Installation and Operating Guide
Smart Pass-Through Chambers
©
Copyright 2017 Terra Universal Inc. All rights reserved. • Revised July 2020 • Document No. 1788-27
Terra Universal, Inc. • TerraUniversal.com • 800 S. Raymond Ave. • Fullerton, CA 92831 • TEL: (714) 578-6000 • FAX: (714) 578-6020
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3.
The HEPA filter assembly is surrounded by a gel-filled channel. Touching only
the aluminum frame, lift the new HEPA filter up into the housing, pressing the
knife-edges into the gel. Rotate the clips to secure it in the proper position.
4.
Snap the protective metal screen back into the ceiling.
3.3
Load Presence Sensors
The optional Load Presence Sensors can detect objects placed within the pass-through using a pair of infrared beams.
Whenever interference is detected between the IR transmitter and receivers, the Smart Pass-through Controller sends a signal
to the “Load Presence” indicator lights on both sides of the pass-through, alerting personnel of materials ready for transfer. The
indicator lights will blink until the object causing the interference has been removed.
NOTE
Be sure to always place materials near the center of the pass-through to avoid potential blind spots.
Replacement HEPA Filters
Filter Size
Cat. #
2’ x 2’
6601-27-R
2’ x 3’
6601-26-R
2’ x 4’
6601-25-R
Figure 20:
View from above of the IR beam pattern
Receiver
Transmitter
Transmitter
Receiver
Figure 18:
Rotate the retaining clips to release the filter
Figure 19:
Black gel-filled channel forms a seal when installed
