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It is recommended that the pass-through chamber operate at a higher negative pressure than the work 

chamber. This will provide the most favorable condition for both product and personnel protection. 

The pass-through chamber has an external access door with gloveport. An inter-chamber door is located 

inside the work chamber.  These doors have a mechanical interlock system to keep both doors from being 
open at the same time. 

The work chamber viewscreen has key lock latches and two gloveports equipped with gloves to provide a 

physical barrier between the technician and the product.  The viewscreen is hinged along the top and may be 
fully opened for loading or unloading.   

! CAUTION ! 

 The viewscreen should never be opened until after the work chamber has been properly 

cleaned and decontaminated.   

The Baker Company has included ergonomic enhancements into the design of the ChemoSHIELD

®

 for 

improved operator comfort and safety.  A 10

°

 sloped front feature and adjustable stand have been 

incorporated into the design to improve ergonomics so the operator can use the cabinet comfortably either 
standing or sitting without sacrificing safety. 

 

Cabinet Pressure Areas 

One of the many features that sets the ChemoSHIELD

®

 unit apart from other cabinets is the interaction of 

its pressure areas. The whole cabinet is under negative pressure when operating. The pass-through chamber 
operates at a more negative pressure than the adjacent work chamber.  This allows air to flow into the pass-
through chamber when the inter-chamber door is open to insure product protection in the work chamber. 
When the pass-through access door is opened room air is pulled into the chamber thus helping personnel 
protection. 

The ChemoSHIELD

®

 provides better than Class 100 (ISO Class 5) air cleanliness conditions within the 

enclosure. 

 

Access to the Work Chamber 

For easy entry of apparatus into the work chamber, ChemoSHIELD

®

 has a top hinged viewscreen.  Its 3/8 

-inch shatterproof polycarbonate viewscreen allows excellent visibility, and can be opened fully to permit 
placement of large items in the work area.  

! CAUTION ! 

 The viewscreen should never be opened until after the work chamber has been properly 

cleaned and decontaminated.  

While in operation the pass-through is used to bring items in and out of the cabinet. 

 
 

Design Details 

 

Performance assurance 

Meticulous care in manufacturing is followed by physical and performance tests prior to shipment of your 

cabinet.  In addition, a complete factory test report on your cabinet is included at the rear of this manual. 

 

351D700 Rev G 

 

 

 

 

Summary of Contents for ChemoSHIELD CS500

Page 1: ...o bakerco com bakerco com OPERATOR S MANUAL Negative Pressure Isolator MODEL CS500 Revision Date Description H 5 19 15 UPDATED BRANDING This manual includes information for installation operation main...

Page 2: ...laboratory personnel In addition to the high quality you expect from all Baker equipment this model has been ergonomically designed to provide the lab user with many exciting design features The ergo...

Page 3: ...3 Easy filter access 4 Telescoping stand 4 Mechanical interlock between pass through door inter chamber door 4 Pressure monitoring of chambers 4 Airflow monitor AFM 4 Auxiliary switch Optional 4 Elec...

Page 4: ...HEPA FILTERS 12 REMINDERS 12 APPENDIX 13 REPLACEMENT PARTS LIST 14 AIRFLOW MONITOR OPERATION CALIBRATION 15 WARRANTY 16 WARNING The agents used and or work performed in this cabinet may be hazardous t...

Page 5: ...ection while the sealed work chamber and HEPA filtered airflow provides product protection Fig 1 Airflow Inside Cabinet Negative Pressure The pass through chamber allows operators to introduce or remo...

Page 6: ...ny features that sets the ChemoSHIELD unit apart from other cabinets is the interaction of its pressure areas The whole cabinet is under negative pressure when operating The pass through chamber opera...

Page 7: ...protected by a smooth white baked enamel finish Tested HEPA filters The filters in the ChemoSHIELD are scan tested HEPA filters They are 99 99 effective on particles of 0 3 micron in size Each filter...

Page 8: ...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...

Page 9: ...at the site of installation The cabinet is to be powered by a 115 V AC 15A 60 Hertz Single Phase dedicated circuit This circuit should be protected by a 15A circuit breaker or fuse Typical Current for...

Page 10: ...ndoor use Altitudes up to 2000 meters Maximum relative humidity 80 for temperatures up to 31 C decreasing linearly to 50 relative humidity at 40 C Main supply voltage 105 to 125Volts AC Transient over...

Page 11: ...Explosive or flammable substances should never be used in this cabinet Location Within the Laboratory Position the ChemoSHIELD so the pass through chamber end is 15 away from any wall or obstruction...

Page 12: ...guidelines Reference the cabinet factory test report for information on the test criteria used NOTE This test should be performed before the cabinet is connected to the building exhaust system See Fig...

Page 13: ...ch will illuminate when the fluorescent lights are turned on 2 Auxiliary AUX Switch Optional This switch is available for wiring to a building exhaust system fan blower so that it can be turned on off...

Page 14: ...been open and closed to allow the chamber and tunnel to purge with HEPA filtered air Unloading and Wipe down 1 Close the inter chamber door before opening the pass through door when unloading material...

Page 15: ...m being killed Standard disinfectants include Hypochloride chlorine bleach Iodophor Detergent Ethanol Phenol and Alcohol IMPORTANT Disinfection and cleaning should always be followed by rinsing in ste...

Page 16: ...Company for more information It must be pointed out that the HEPA filter is not intended to filter gasses or vapors nor are they 100 efficient on particulates The room and cabinet particulate levels...

Page 17: ...Appendix 351D700 Rev G 13...

Page 18: ...13 x 6 39797 Filter HEPA 9 x 13 x 6 40817 Replacement Filters kit for complete cabinet 351G000 Latch Inter Chamber Door 40114 Latch Pass Through Door 40114 Latch Work Chamber Viewscreen 40881 Nitrile...

Page 19: ...n normal airflow is resumed the BLOWER relay will change states and will have a slower single audible alarm The red LED will be latched ON solid until reset with the Alarm Reset button No Probe Red an...

Page 20: ...nc will F O B Sanford Maine furnish without charge repairs to or replacement parts or equipment which proved defective in material or workmanship No claim may be made for any incidental or consequenti...

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