•
Each chamber has an inlet plenum with manual damper to control airflow and static pressure within the
chamber.
•
A single damper located in the base of the cabinet is used to adjust the pressure balance between the two
chambers.
Easy filter access
For convenience and ease of service, the downflow HEPA filters are installed and removed through the top
front of the cabinet. The exhaust HEPA filters are designed for bagging inside of the cabinet and removal
through the pass through. Only a qualified technician should service the filters.
Telescoping stand
The cabinet stand provides the following range of heights:
Knee
Space
Height
Work
Surface
Height
Overall
Height
Minimum Setting
32”
36”
84”
Maximum Setting
41”
45”
93”
Mechanical interlock between pass-through door & inter-chamber door
A mechanical interlock is provided that prevents both doors being open at the same time.
Pressure monitoring of chambers
Two pressure gauges are provided to monitor the negative pressure levels inside the pass-through and
work chambers. The gauges are comparing chamber pressure to the room pressure.
Airflow monitor – AFM
The AFM is an audible and visual alarm system consisting of solid state flow measuring and alarm
circuitry in a small enclosure. The AFM has a hot wire anemometer probe that is installed in the cabinet
exhaust duct. The measuring circuit and probe can be replaced separately.
The AFM is equipped with two relays. The yellow “Warning” level, which can be connected to a remote
alarm device, and the red “Alarm” level that is connected to the cabinet Control Board to shut down the
cabinet blower if the exhaust airflow is not adequate (NCB / SG-TX ONLY). The AFM alarm set point is
established at our factory but will need to be confirmed after it is installed in the field. The AFM visual
indicators are Green (Power), Yellow (Warning), Blue (Mute), and Red (Alarm) LEDs. Further information
on AFM operation can be found in the Appendix of this manual
Auxiliary switch (Optional)
An auxiliary switch located on the electrical panel rated at 125-277 VAC, 15A is available for wiring to a
fan/blower for the building exhaust system so that it can be turned on/off from the cabinet, if required. Refer
to pages 32 and 33 for the junction box location and wiring schematic.
351D700 Rev G
4
Summary of Contents for ChemoSHIELD CS500
Page 17: ...Appendix 351D700 Rev G 13...
