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Power Switch - 

mains disconnect/circuit breaker for the cabinet.

Blower Motor/Lights Reset Button

(15 Amp) - The Reset but-

ton (located on the left side of the control panel, directly above
the Receptacle fuses) is an in-line circuit breaker for the internal
blower motor and lighting. If an overload occurs, the circuit
breaker will trip and the button will protrude from the panel.
Depress the button to reset the circuit breaker.

Note:

•  Turn power off to the blower.
•  Turn power off to the lighting.
•  Press the blower motor/lighting Reset button.

Receptacles

- Receptacles (115 Volts) are located on the left and

right sidewall of the workstation. Power is controlled by the
receptacle switch located on the control panel. The maximum
load is 5 amps total for Models 1284 and 1285. Models 1286
and 1287 have a maximum load of 2 amps total. Models 1285
and 1287 are equipped with 2 single European 230V receptacles. 

Drain Valve

- The drain valve, located on the right front side of

the cabinet, is provided for the safe drainage of the drain pan.
This valve must remain closed while work is being performed in
the cabinet and be used only in the event of a major spill.

If a spill occurs, immediately consult a biological
safety officer or other qualified individual for
proper procedures. To contain a spill, connect a
sealed hose from the drain valve to a sealed con-
tainer.  

Service Valves

- Two service valves are standard with each cabi-

net. These valves are located on the right and left side of the
workstation and can be coded with the type of service that they
supply. Identification index buttons are supplied.
The cabinet supports four service valves. Additional valves are
available.

Exhaust Filter Guard

- The exhaust filter guard, located on top

of the exhaust filter, protects the exhaust airflow and prevents
the storage of objects on top of the housing.

Sliding Window Assembly

- The sliding window assembly

allows the operator to raise the glass window to place items
within the work area. If the sliding window is above the 10-inch
level, a red light and audible alarm warns that an unsafe condi-
tion exists.

When work is being performed in the cabinet, the
sliding window must be at the 10-inch position to
avoid contamination to product and personnel.

Model 1280 Series __________________________________________________________________________Operation

5 - 2

Figure 5-3

6 ft. Series, Models 1286 and 1287

Summary of Contents for 1284

Page 1: ...Models 1284 1285 1286 and 1287 Forma Class II Type A2 Biological Safety Cabinets Operating and Maintenance Manual Manual No 7011284 Rev 1 ...

Page 2: ...ontents and the product it describes are subject to change with out notice Thermo Electron Corporation makes no representa tions or warranties with respect to this manual In no event shall Thermo be held liable for any damages direct or incidental aris ing out of or related to the use of this manual MANUAL NUMBER 7011284 1 21650 HD 1400 6 23 03 Removed one valve from the workspace on 4 ft units cc...

Page 3: ...edures must be used when following instructions associated with this symbol Reference O S H A Regulation 1910 1030 Potentially hazardous energy Equipment being maintained or serviced must be turned off and locked off to prevent possible injury Reference O S H A Regulation 1910 147 Hot surface s present which may cause burns to unprotected skin or to materials which may be damaged by elevated tempe...

Page 4: ...Model 1280 Series ___________________________________________________________________________Service iii ...

Page 5: ... 7 1 7 2 Use of Auxiliary Equipment in the Cabinet 7 1 7 3 Cabinet Checklist 7 1 7 4 Start Up Procedure 7 1 Section 8 Troubleshooting 8 1 8 1 Troubleshooting Guide 8 1 Section 9 Routine Maintenance 9 1 9 1 Checking the Static Pressure Gauge Zero 9 1 9 2 Zeroing the Static Pressure Gauge 9 1 9 3 Adjusting the Damper 9 1 9 4 Biological Safety Cabinet Test Grids 9 2 9 5 Blower Control 9 3 9 6 Recepta...

Page 6: ...escribed in the Biosafety In Microbiological And Biomedical Laboratories CDC NIH Publication No NIH 88 8395 4th Edition May 1999 The cabinet s window permits the user to place auxiliary equipment and research implements in the work area The work opening must be held to 10 inches during all work procedures If the window is raised higher than the designated 10 inches the air barrier at the front of ...

Page 7: ...d monitored by a biological safety officer or other qualified individual However if flammable gas is used emergency shut off valves must be located in an accessible area external to the cabinet a Universal Plumbing Option The Universal Plumbing option is factory installed External connection 1 4 NPT to the unit is available on the top and the underside of the cabinet as well as the standard side c...

Page 8: ...Model 1280 Series ________________________________________________________________________Installation 3 2 INPUT FOR AIR OR VACUUM AIR OR VACUUM INPUT Back of BSC Front of BSC Figure 3 1 ...

Page 9: ...Model 1280 Series ________________________________________________________________________Installation 3 3 Figure 3 2 ...

Page 10: ...e stress of shipping and handling and the fragile nature of the HEPA filters the cabinet must be thoroughly tested when it has been placed in its final location The following tests should be performed HEPA Filter Leak Test DOP Test Downflow Velocity Profile Test Face Velocity Air Flow Test Voltage Test These tests must be performed by qualified service special ists who are familiar with the method...

Page 11: ...ng settings Off center On top fluorescent lamp On bottom ultra violet lamp on with the window completely down Either the fluorescent lamp or the ultra violet lamp may be lit at one time Alarm By pass Switch The Alarm By pass switch silences the audible Window Above 10 Inch alarm for five minutes The red visual indicator remains illuminated The alarm rings back to remind the operator that the windo...

Page 12: ...cabinet and be used only in the event of a major spill If a spill occurs immediately consult a biological safety officer or other qualified individual for proper procedures To contain a spill connect a sealed hose from the drain valve to a sealed con tainer Service Valves Two service valves are standard with each cabi net These valves are located on the right and left side of the workstation and c...

Page 13: ...dry before turning power on Do not use strong alkaline or caustic agents Stainless steel is corrosion resistant not corro sion proof Do not use solutions of sodium hypochlorite bleach as they may also cause pit ting and rusting Section 7 Cabinet Start Up 7 1 General Recommendations Keep movement in the room to a minimum when the cabi net is in use Keep all laboratory doors closed to prevent drafts...

Page 14: ... system The system must be rebalanced to handle the correct air volume A biological safety officer should be consulted Low voltage is being applied to the blower motor Blower motor or speed control is defective Supply HEPA filter and Exhaust HEPA filter may be loaded Decontaminate the unit and replace both HEPA fil ters Before any maintenance work is performed in the biological safety cabinet the ...

Page 15: ...to raise it 9 3 Adjusting the Damper Since the HEPA filter resistance may vary from filter to fil ter even filters of the same size a damper has been installed in the cabinet exhaust system for maintaining proper airflow balance The purpose of the damper is to regulate the amount of exhaust air intake velocity and supply velocity The damper has been preset at the factory and should not be readjust...

Page 16: ...e cabinet 2 Loosen the wingnut move the lever to the desired position and retighten the wingnut Copies of the factory airflow test sheets are available in the Specifications section 9 4 Biological Safety Cabinet Test Grids a 4 foot Series Models 1284 and 1285 Model 1280 Series ____________________________________________________________________Routine Maintenance 9 2 Figure 9 2 Figure 9 3 ...

Page 17: ...ler Refer to Figure 9 1 Turning the screw clockwise increases air veloci ty counterclockwise decreases it Model 1280 Series ____________________________________________________________________Routine Maintenance 9 3 The blower speed is factory set and should only be changed by a qualified technician Measuring Blower Motor Voltage Both blower motor voltage and line voltage are measured at the three...

Page 18: ...__________________________________________________________________________Service 10 1 12 Disconnect the motor wiring harness at the quick con nect plug 13 Pull the motor motor mounting bracket removable inlet collar and blower wheel out of the blower housing 14 Be sure to mark on the motor shaft the location of the blower wheel so that the new motor shaft can be lined up correctly with the requir...

Page 19: ...e four hex nuts securing the lower cross brace and set the brace to the side 6 Remove all hex nuts securing the pressure plate 7 Pry the pressure plate loose from the gasket and set it to the side 8 Pull the Velcro boot loose from the exhaust filter plenum 9 Release the two latches securing the supply plenum to the blower housing 10 Disconnect the vinyl tubing that connects the Mag gauge to the pl...

Page 20: ...B x 5 7 8 H Lights 2 Fluorescent 32W F32 T8 1 Optional UV 30W G30T8 Germicidal Lamp Blower Motor 3 4 HP 1500 RPM Drain Pan Capacity 27 0 Gallons Section 11 Specifications 11 1 Models 1284 and 1285 4 Cabinet with Sliding Window Construction Work Surface Type 304 Stainless Steel 4 Finish Cabinet Cold Rolled Steel and Type 304 Stainless Steel Finish White Baked Powder TCI Hybrid Paint Dimensions Exte...

Page 21: ...nature of the electricity supply and its overvoltage protection means For example in CAT II which is the category used for instruments in installations supplied from a supply comparable to public mains such as hospital and research laboratories and most industrial laboratories the expected transient overvoltage is 2500V for a 230V supply and 1500V for a 120V supply 2 Pollution degree describes the...

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Page 26: ...h the addition of the following Stock Description 275012 Transformer 1 5KVA 240 120V 460270 European Cord 230V 16A 230203 Circuit Breaker Switch 13A Model 1280 Series _________________________________________________________________Accessories Parts List Section 12 Accessories Description Order Number Service Valve 191275 Armrest 4 cabinet 191509 Armrest 6 cabinet 191512 Lab Chair with arms 191486...

Page 27: ...h SPDT 249025 Valve Body w Tip 104008 Gauge Static Pressure 360146 Rocker Switch DPST 230166 Fuses 3 Amp 1 4 x 1 1 4 230204 Circuit Breaker Switch 18A The parts for the Model 1287 are the same as Model 1286 with the addition of Stock Description 275012 Transformer 1 5KVA 240 120V 430270 European Cord 230V 16A 230179 Circuit Breaker Switch 10A 13 3 Filter Pressure Drop Conversion Pressure drop acro...

Page 28: ...Model 1280 Series ________________________________________________________________ Electrical Schematics 14 1 ...

Page 29: ...Model 1280 Series ________________________________________________________________ Electrical Schematics 14 2 ...

Page 30: ...Model 1280 Series ________________________________________________________________ Electrical Schematics 14 3 ...

Page 31: ...Model 1280 Series ________________________________________________________________ Electrical Schematics 14 4 ...

Page 32: ...Model 1280 Series ________________________________________________________________ Electrical Schematics 14 5 ...

Page 33: ...Model 1280 Series ________________________________________________________________ Electrical Schematics 14 6 ...

Page 34: ...Model 1280 Series ________________________________________________________________ Electrical Schematics 14 7 ...

Page 35: ...Model 1280 Series ________________________________________________________________ Electrical Schematics 14 8 ...

Page 36: ...Model 1280 Series ________________________________________________________________ Electrical Schematics 14 9 ...

Page 37: ...Model 1280 Series ________________________________________________________________ Electrical Schematics 14 10 ...

Page 38: ...Model 1280 Series ________________________________________________________________ Electrical Schematics 14 11 ...

Page 39: ...Model 1280 Series ________________________________________________________________ Electrical Schematics 14 12 ...

Page 40: ...tten and or practical examinations The Controlled Environment Testing Association CETA is a trade association devoted to promoting and developing quality assurance within the controlled environment testing industry A list of active members is available by contacting the organization Controlled Environment Testing Association 1500 Sunday Drive Suite 102 Raleigh NC 27607 Telephone 919 787 5181 Fax 9...

Page 41: ...Thermo Electron Corporation Controlled Environment Corporation Millcreek Road P O Box 649 Marietta Ohio 45750 U S A Telephone 740 373 4763 Telefax 740 373 4189 ...

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