Kewaunee Interceptor INT-1100A2 Maintenance And Technical Manual Download Page 16 | Manualshive

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Chapter 3

Maintenance and Technical Manual

Interceptor Biological Safety Cabinet Class II A2

October 2019

3.4

Replacement of Face Velocity Sensor

The thermal velocity sensor, located in the exhaust output box at the BSC top left,

is designed to measure exhaust velocity and translate it into average face velocity at

a 10" opening. If the velocity readout starts being irregular, the thermal sensor may

need replacement.

Figure 3.5 Face Velocity Sensor

Be sure the sensor window openings are perpendicular to the exhaust plane. Repair

and/or replacement of the thermal sensor can be done without decontamination

by replacing the sensor with a new unit. Once this has been done, velocity must be

recalibrated using the controller calibration program outlined in Chapter 5.

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Summary of Contents for Interceptor INT-1100A2

Page 1: ...s II A2 Maintenance and Technical Manual INT 1100A2 INT 1100A2 230 INT 1400A2 INT 1400A2 230 INT 1700A2 INT 1700A2 230 INT 2000A2 INT 2000A2 230 INT 1100A2 1 INT 1100A2 1 230 INT 1400A2 1 INT 1400A2 1 230 INT 1700A2 1 INT 1700A2 1 230 INT 2000A2 1 INT 2000A2 1 230 BSCMT A2 1019 ...

Page 2: ......

Page 3: ...ntamination and Repairs 3 1 Filter Replacement Instructions 3 2 Face Velocity Sensor Replacement 3 4 Thimble Connection 3 5 Parts List 3 6 CHAPTER 4 Cabinet Operation 4 1 Startup Procedure 4 3 Air Flow Patterns 4 4 Recommended Workflow 4 5 NightSetback Low Flow Mode 4 5 Control Monitor 4 6 UV Light 4 6 Control Monitor Messages and Meanings 4 7 Control Monitor Screens Menu Diagrams 4 8 CHAPTER 5 Tr...

Page 4: ...ion provided by the equipment may be impaired Also any maintenance or service to an Interceptor product must be done according to the instructions contained herein Maintenance of this product shall be carried out by technicians trained in the mechanical details of this unit ê WARNING Class II A2 Biological Safety cabinets must be certified before initial use after being moved and after any service...

Page 5: ...duct Descriptions NOTES All power values measured at 10 inch operating sash height The powered base stand if ordered will take an additional 8 6 amps at 120 VAC 60 Hz or 4 3 amps at 230 VAC 50 Hz The electrical outlets inside the Interceptor are grounded This is particularly important since all internal surfaces are stainless steel and conduct electricity Under NO CIRCUMSTANCES use ungrounded plug...

Page 6: ... has no influence Pollution Degree 2 Normally only non conductive pollution occurs Occasionally a temporary conductivity caused by condensation must be expected Pollution Degree 3 Conductive pollution occurs or dry non conductive pollution occurs which becomes conductive which is expected Be aware that the dimensions of a Biological Safety Cabinet may exceed doorway limitations Sash Face Opening C...

Page 7: ...opening the Air Chamber Panel a complete decontamination of the upper plenum area is required This decontamination step is essential since the filters and surfaces of the upper chamber will be contaminated ê WARNING Opening the Air Chamber Access Panel requires a complete decontamination of the upper plenum area Decontamination may only be performed by an NSF AccreditedTechnician Air Chamber Panel...

Page 8: ...ce velocity of at least 100 FPM cannot be attained 2 Fan Failure Fan fails to operate 3 Pressure Transducer Failure The control panel displays Sensor Error and or erratic velocity readings ê WARNING Opening the Air Chamber Access Panel requires a complete decontamination of the upper plenum area Decontamination may only be performed by an NSF AccreditedTechnician Plenum Access Panel Supply Filter ...

Page 9: ... 105 FPM inflow velocity Check the exhaust downflow balance after such an adjustment is made The steps must be performed by an NSF Certified Technician Figure 2 3a Menu Screen Figure 2 3b Cabinet Setup Screen Figure 2 3c Fan Speed Screen Figure 2 3d Set Normal Fan Speed Screen Filters should be changed when they load up to the point that further adjustment of the motor RPM will not increase face v...

Page 10: ...e Air Chamber Access Panel Figure 2 5 Electrical Junction Box Blower Speed Control Power Supplies Once the Blower Speed Control and Power Supplies are verified and found normal the Air Chamber Access Panel must be removed to inspect replace the Fan ê WARNING Opening the Air Chamber Access Panel requires a complete decontamination of the upper plenum area Decontamination may only be performed by an...

Page 11: ...emove the Plenum Access Cover Panel 4 Remove the Bolts holding Fan in place The two lower Bolts are accessible from inside the Plenum Chamber 5 Carefully dislodge the Fan from its cushioned Gasket and remove from the Plenum 6 Inspect the Fan mounting surface on the Plenum and remove any Gasket material that may have stuck to the surface 6 Install replacement Fan by reversing the steps above Make s...

Page 12: ...Front Panel Pressure Transducer Replacement After removing the Air Chamber Access Panel the Pressure Transducer is located in the far right hand side of the Air Chamber Replacement requires disconnecting then reconnecting all wires and the pressure hose ê WARNING Opening the Air Chamber Access Panel requires a complete decontamination of the upper plenum area Decontamination may only be performed ...

Page 13: ...city and Face Velocity will both decrease When this inevitable change occurs some adjustment of motor RPM can restore face velocity but will not restore the filter capacity readout see Chapter 2 Below the 50 filter capacity level it may no longer be possible to achieve 105 FPM by simply raising the motor RPM Since NSF 49 requires the minimum operating average face velocity be between 100 FPM and 1...

Page 14: ... A2 October 2019 3 2 Filter Replacement Figure 3 3 Filter Replacement Front View Exhaust Filter Supply Filter Exhaust Filter Scissor Clamp Supply Filter Scissor Clamp Supply Filter Scissor Clamp Exhaust Filter Scissor Clamp Figure 3 4 Filter Replacement End View Exhaust Filter Supply Filter ...

Page 15: ...socket alternately tighten the two Exhaust Filter Scissor Clamps until the Exhaust Filter is securely contained Supply Filter Removal Replacement 1 Using a 1 2 socket alternately loosen the two Exhaust Filter Scissor Clamps allowing the Exhaust Filter to drop down 1 2 inch 2 Using the 1 2 socket alternately loosen the two Supply Filter Scissor Clamps until the Supply Filter can be easily removed b...

Page 16: ...e it into average face velocity at a 10 opening If the velocity readout starts being irregular the thermal sensor may need replacement Figure 3 5 Face Velocity Sensor Be sure the sensor window openings are perpendicular to the exhaust plane Repair and or replacement of the thermal sensor can be done without decontamination by replacing the sensor with a new unit Once this has been done velocity mu...

Page 17: ...not operating Figure 3 6 Thimble Connection with Airflow Sensor Canopy Thimble Exhaust requirements The building ventilation system must be verified that it can handle the required exhaust volumes of the cabinet before connection Thimble Exhaust CFM should be 1 3 times 130 of the Biological Safety Cabinet exhaust See instructions shipped with Thimble Connection for proper installation and connecti...

Page 18: ...IN 050009 72 FIN Exhaust HEPA filter F 7275 36 FIN F 7275 48 FIN F 7275 60 FIN F 7275 72 FIN Supply HEPA filter F 7276 36 FIN F 7276 48 FIN F 7276 60 FIN F 7276 72 FIN Removable Work Tray Support 052063 00 052063 00 052063 00 052063 00 Sash Sweeper Plate 052076 36 052076 48 052076 60 052076 72 Top Exhaust Balance Damper 052077 00 052077 00 052077 00 052077 00 Damper Telescoping Section 050166 00 0...

Page 19: ...CDC BMBL 5th edition Biological Safety level 1 BSL 1 is the basic level of protection and is appropriate for agents that are not known to cause disease in normal healthy humans Biological Safety level 2 BSL 2 is appropriate for handling moderate risk agents that cause human disease of varying severity by ingestion or through percutaneous or mucous membrane exposure Biological Safety level 3 BSL 3 ...

Page 20: ...Pad Contol Monitor Home Face Velocity Screen Asset Tag Face Velocity Local Time 12h 24hr Unit of Measure FPM or M S UV Light ON OFF Button Information Button Alarm LED Home Button Warnings Alarms Latch Banner Light ON OFF Button Fan ON OFF Button Settings Button Alarm Mute Button Figure 4 1 Touch Pad Control Monitor ...

Page 21: ... Banner will display until user clears it from the screen Important Cabinet must be certified before being put into service Press the Fan button once and the fan motor will start As the fan spins up the face velocity will increase until the operating face velocity is reached and the cabinet is safe to use Figure 4 4 4 6 The Interceptor is now intercepting all dust bacteria and viral matter and del...

Page 22: ...ir Contaminated Air Figure 4 7 Interceptor Biological Safety Cabinet Air Flow Patterns Interceptor Class II A2 Air Flow Patterns It is recommended that the cabinet fan be turned on and allowed to operate for several minutes removing any suspended particulates Cabinet interior should then be wiped down with 70 ethanol EtOH or other approved disinfectant ...

Page 23: ...isinfect as is customary at your facility and place materials away Each time the unit is used it should be left clean Follow your SOP for shut down or night setback procedures Night Setback Low Flow Mode The Interceptor Biological Safety Cabinet is equipped with a two speed motor to save energy when it is not being used for active procedures The cabinet is placed into Night Setback Low Flow Mode b...

Page 24: ...ived NSF certification 4 UV Light on and Fan on UV Light The UV germicidal disinfecting light may be used if one has been installed fully close the sash and turn on the light using the UV Light button Because UV rays are dangerous the light will not operate unless the sash is fully closed Glass stops UV radiation If the UV light is not turned off before the sash is raised the safety interlock will...

Page 25: ... converted by the Contol Module to a filter loading percentage The Interceptor exceeds NSF requirements for maximum static load An Accredited Technician may need to adjust fan speed to maintain face velocity or change filter Sash Alarm Banner A micro switch interaction with the counterweight activates this warning The cabinet is designed to be used at a 10 sash opening Any other opening is inappro...

Page 26: ... tough screen Control Monitor to display menus and options The following pages illustrate the different states of the monitor with illustrations of the various screens and schematics of each of the menus The schematic charts show all options for each menu item as well as the factory setting Startup Home Face Velocity Screen displays when cabinet is plugged in Press Power Failure banner to clear Pr...

Page 27: ... Displays Home Face Velocity Screen Fan OFF displays when Fan is Off Press Fan Switch to Start Figure 4 14 Home Face Velocity Screen Fan Warmup displays when Fan is On during warmup period Figure 4 15 Home Face Velocity Screen Fan On displays when Fan is On after warmup period Press Light button to turn on light Figure 4 16 ...

Page 28: ...tings Press Cabinet Setup for Cabinet Setup and Calibration Figure 4 17 System Menu Use to set User Settings Press Alarms Sound to adjust alarm and volume settings Press Airflow Settings to adjust Sensor sensitivity and Airflow Resolution Press Advanced to Configure Asset Tag and Change Passwords Figure 4 18 Change Password Menu Use to change Passwords Press Admin Password to change Press Certifie...

Page 29: ...an Speed to adjust airflow Press Sensor Calibration to calibrate airflow sensor Press UV Settings to adjust UV Timer Figure 4 20 Calibration Setup Menu Use to Calibrate Monitor Screen at time of installation and after filter changes only requred if actual airflow velocity does not match displayed airflow velocity Press Calibrate and follow prompts Note To Be Performed by Certified Technician Only ...

Page 30: ...anced Menu See Table 4 7 Back Return to Home Screen Table 4 3 Menu Item Input Option Factory Setting Device Volume Hi Med Low Med Key Beep On Off On Set Minimum Volumes Hi Med Low Low Alarm Controls to Alarm Controls Menu See Table 4 5 Back Return to System Menu Table 4 4 Menu Item Input Option Factory Setting Ringback Off 10s 30s 1min 5min 10min 60min 1min Alarm Delay 1s 2s 5s 10s 1s Startup Dela...

Page 31: ...Menu See Table 4 9 Back Return to System Menu Table 4 7 Airflow Settings Menu password protected Advanced Menu password protected Menu Item Input Option Factory Setting Change Asset Tag none Show Asset On Off ON Back Return to Advanced Menu Table 4 8 Menu Item Input Option Factory Setting Admin Password Enter Old Password Admin Enter New Password Admin Enter Confirm Pass Admin 9999 Certifier Passw...

Page 32: ...how Time On Off On Date Time Settings to Date Time Settings Menu See Table 4 12 Back Return to Cabinet Setup Menu Table 4 11 Menu Item Input Option Factory Setting Date Enter Current Date Current Date Time Enter Current Time Current Time Time Format 12hr 24hr 12hr Back Return to Cabinet Setup Menu Table 4 12 Menu Item Input Option Factory Setting Normal Fan Speed Set Normal Fan Speed NSB Fasn Spee...

Page 33: ...rated MMM DD YYYY Calibrate Sensor to Sensor Calibration Instructions See Page 5 2 Back Return to Cabinet Setup Menu Table 4 14 Menu Item Input Option Factory Setting UV Timer 30min 60min 90min 2hr 4hr 6hr 30min UV Lamp Life in hours 2000hrs Reset UV Lamp Life Okay Cancel Back Return to Cabinet Setup Menu Table 4 15 Sensor Calibration Menu UV Settings Menu password protected password protected ...

Page 34: ...Chapter 4 Maintenance and Technical Manual Interceptor Biological Safety Cabinet Class II A2 October 2019 4 16 ...

Page 35: ...opposite ends of glass fluorescent tube Replace lamp b Lamp wiring defective Inspect and repair c Bad lamp ballast symptom is intermittent light Replace ballast located inside rooftop circuit box UV light does not illuminate a Sash must be closed for UV light to work regular glass blocks UV rays Close sash b Lamp burnt out Replace lamp c Lamp wiring defective Inspect and repair d Bad lamp ballast ...

Page 36: ... 11 Adjust Night Setback Fan Speed to 50 of Normal Fan Speed 12 Press Back to return to Cabinet Settings Menu 13 Remove Flow Hood Confirm Downflow CFM matches data label Adjust as required by sliding exhaust damper on top of cabinet Calibration 14 Press Sensor Calibration on Cabinet Setup Menu 15 Press Calibrate 16 Follow instructions on Control Screen to complete Calibration process 17 Step 1 Fan...

Page 37: ...d default password 1001 7 Press Normal Fan Speed 8 Adjust Normal Fan Speed and then repeat Steps 2 through 8 until a Face Velocity of 105 5 FPM is achieved 9 Press Back to return to Fan Speed Menu 10 Press NSB Fan Speed 11 Adjust Night Setback Fan Speed to 50 of Normal Fan Speed 12 Press Back to return to Cabinet Setup Menu Confirm Downflow CFM matches data label Adjust as required by sliding exha...

Page 38: ... shown below 2 Record the Velocity Reading 3 Repeat for all the Measurement Points as shown on the chart below and as marked on the lower face of the Cabinet Airfoil behind the Armrest Measurement Points are marked with small vertical slots Note Armrest must be in place for testing and daily operation Secondary Method Measurements Model Number Dimension from Sides Dimension Between Points Correcti...

Page 39: ...Maintenance and Technical Manual Chapter 5 Interceptor Biological Safety Cabinet Class II A2 October 2019 5 5 Wiring Schematic ...

Page 40: ...ABORATORY PRODUCTS GROUP P O Box 1842 Statesville NC 28687 1842 Phone 704 873 7202 Fax 800 932 3296 Email kscmarketing kewaunee com Website www kewaunee com Copyright 2019 Printed in U S A BSCMT A2 1019 ...

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