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Horizontal Laminar Flow Workstation

User Manual

Troubleshooting

This section is to be used as a general guideline . An independent certification agency or a qualified technician

specializing in repairs and testing of this type of equipment must do any maintenance or repairs that need to be

made .

Trouble

Possible Causes

Remedy

Air supply inoperative

Main switch off

Check main switch

See that plug is in the electrical

outlet

Blue light switch should be on

No air circulation

Blower off

Check motor blower control

Blown circuit breaker

Check circuit breaker on control

panel

Break in electrical wiring

Use electrical diagram and check

wiring connections

Excessive blower vibration

Foreign matter in blower squirrel

cage

Remove paper, paper clip, etc .

Exhaust Air Imbalance

Improper adjustment of blower

motor control

Adjust to proper reading on

pressure gauge – Contact

certification company

Obstruction of plenum

Remove obstruction

Leak between blower and

plenum

Repair leak – Contact

certification company

Filter loaded

Replace Filters – Contact

certification company

Содержание BZ Series

Страница 1: ...Germfree Horizontal Laminar Flow Workstation User Manual v2 0 02 03 21 RMH Horizontal Laminar Flow Workstation User Manual ...

Страница 2: ...5 Airflow 6 Airflow Diagram 7 Maintenance 8 Troubleshooting 11 Certification Testing Expectations 13 Installation Instructions 14 Parts List 16 Service Log 18 Quality Statement 19 Our Company 19 Germfree s Mission 19 Appendix A Line Drawings Appendix B Wiring Diagrams Appendix C Sensocon User Manual ...

Страница 3: ...fuser located immediately in front of it The airflow utilized by the BZ Series Hood consists of moving individual streams of unidirectional ultra clean air along parallel lines with minimal turbulence This airflow pattern is known as laminar Your BZ Series Hood is intended to be used as a work area that maximizes product quality control and minimizes risk of product exposure to contaminates It sho...

Страница 4: ...ly more depending on the length of the hood so there should be ample space in your laboratory for several people to maneuver freely While lifting the hood either to a stand or benchtop it needs to be lifted by the back corners of the hood It cannot be lifted by the work deck or acrylic sides Once the BZ Series Hood is inside the laboratory and on its stand benchtop it should be positioned so that ...

Страница 5: ... switches are located in the overhead control panel light housing The motor blower speed control and circuit breaker are mounted in the main body The circuits are completed through the pre grounded plug and socket located behind the control panel light housing on the right side There are two operator controls on the hood a power button and a light button fluorescent lights left switch motor blower...

Страница 6: ...ng to be reset Eventually the speed control will reach the maximum setting At this point the hot wire to the motor should be reconnected to the next higher power level Over time the filter will become loaded requiring an adjustment of the speed control To best determine when the filters should be changed direct readings of airflow in feet per minute should be taken This is usually done with a velo...

Страница 7: ...Horizontal Laminar Flow Workstation User Manual 7 Airflow Diagram ...

Страница 8: ...e panels can be removed with a flat head screwdriver and the filter clamps can be loosened by hand The filter will then slide out from either side Your certifier using R T V silicone sealant can repair small holes or tears in the filter medium The filter must be retested for leaks after any repair is made The spill guard edge located at the work surface will protect the filter from spills on the w...

Страница 9: ...o provide optimal light in the work area Many chemicals have an adverse effect on acrylic plastics Never use gritty soaps or household cleansers such as Comet or Ajax Acrylics are attacked by concentrated alcohols strong solvents chlorinated hydrocarbons and many aromatic hydrocarbons They are also adversely affected by ultraviolet light Acrylic is unaffected by most inorganic solvents minerals an...

Страница 10: ...rrosion and maintains pressure integrity The digital gauge is a closed system with an O ring seal Standard cleaners should have no adverse effects on either gauge refer to your facilities cleaning procedures Your responsibility is to ensure the gauge remains responsive to the pressure difference while the unit is running This means erratic readings such as sudden drops to zero pressure difference ...

Страница 11: ...e light switch should be on No air circulation Blower off Check motor blower control Blown circuit breaker Check circuit breaker on control panel Break in electrical wiring Use electrical diagram and check wiring connections Excessive blower vibration Foreign matter in blower squirrel cage Remove paper paper clip etc Exhaust Air Imbalance Improper adjustment of blower motor control Adjust to prope...

Страница 12: ...num Remove obstruction Leak between blower and plenum Repair leak contact certification company High velocity air Filter rupture Replace Filters Contact certification company Supply filter gasket leak Find and repair leak contact certification company Exhaust air outlet obstruction Remove obstruction Improper adjustment of blower motor speed control Adjust to proper reading on pressure gauge conta...

Страница 13: ... and every year after two other tests will be performed The first will be a filter integrity test The certifier will pump a non volatile solvent such as dioctyl phthalate DOP polyalphaolefin PAO or equivalent over time into the assembled unit on the upstream side of the HEPA filter An aerosol photometer will be used to scan the downstream side for any aerosol droplets that might pass through or ar...

Страница 14: ...d and the hood may be shipped separately depending on the length The instructions below relate to the assembly of the stand and the placement of the hood on top Stand Assembly There are 5 components to the broken down stand the top of the stand two pre assembled side pieces and the two rear supporting braces The pieces are connected by tightening set screws in fittings The assembly starts with inv...

Страница 15: ...his stage 1 The rear of the stand has the supporting bars and should be matched up with the rear side of the top frame The top frame has a flange along the rear edge to make sure the hood sits flush against the back of the stand 2 The stand legs have adjustable bullet feet on the bottom Ensure that the other end is inserted into the top frame Fig 3 Completed Stand ...

Страница 16: ... 00 BZ 8 36 x 48 x 6 Qty 2 375 1009 00 Prefilters BZ 3 361 4 x 121 4 x 1 005 1024 00 BZ 4 481 4 x 121 4 x 1 005 1025 00 BZ 6 361 4 x 121 4 x 1 Qty 2 005 1024 00 BZ 8 481 4 x 121 4 x 1 Qty 2 005 1025 00 Motor Blower BZ 3 3 4 Hp 1450 rpm 7 7 Amp Double Motor 7024 1351 permanent split capacitor 182 0008 00 BZ 4 BZ 6 2 3 4 Hp 1450 rpm 7 7 Amp Double Motor 7024 1351 permanent split capacitor 182 0008 0...

Страница 17: ... 4 BZ 6 20 Amp Potter Brumfield W58XB1A4A 20 CSA approved 163 0063 00 BZ 8 Speed Control All Models 15 Amp KB Electronics KBWC115NS UL approved 332 0014 00 Lighting BZ 3 Fluorescent lights 2 each F 25T8 741 147 4009 00 Commonly available at hardware stores and online BZ 4 Fluorescent lights 2 each 32T8 741 147 4008 00 Commonly available at hardware stores and online BZ 6 BZ 8 Fluorescent Ballast A...

Страница 18: ...Horizontal Laminar Flow Workstation User Manual 18 Service Log Date Service Provided ...

Страница 19: ... as permanent facilities in remote regions with harsh conditions Quality Statement Accountability We will deliver our products on time as promised and free from defects Ownership We will strive to exceed expectations at every level and we will work to make sure that each customer is satisfied with the service that they receive Longevity All of our products are constructed from the highest quality ...

Страница 20: ...Horizontal Laminar Flow Workstation User Manual Appendix A Line Drawings ...

Страница 21: ...V BZ Manual Drawings BZ 3 E GERM 005 3000 00 dft Germfree Laboratories UNLESS OTHERWISE SPECIFIED TOLERANCES ARE XX 03 XXX 010 FRACTIONS 1 16 ANGLES 5 DIMENSIONS ARE IN INCHES DO NOT SCALE DRAWING SHEET NAME DRAWN BY APPROVAL XX XX XX 06 22 20 B SERLE T JAFA CHECKER B SERLE XX XX XX N A MATERIAL FINISH N A N A REVISIONS Rev Description Date Drawn By Checked By Approved A INITIAL RELEASE xx xx xx X...

Страница 22: ...V BZ Manual Drawings BZ 4 E GERM 005 4000 00 dft Germfree Laboratories UNLESS OTHERWISE SPECIFIED TOLERANCES ARE XX 03 XXX 010 FRACTIONS 1 16 ANGLES 5 DIMENSIONS ARE IN INCHES DO NOT SCALE DRAWING SHEET NAME DRAWN BY APPROVAL XX XX XX 06 22 20 B SERLE T JAFA CHECKER B SERLE XX XX XX N A MATERIAL FINISH N A N A REVISIONS Rev Description Date Drawn By Checked By Approved A INITIAL RELEASE xx xx xx X...

Страница 23: ...V BZ Manual Drawings BZ 6 E GERM 005 5000 00 dft Germfree Laboratories UNLESS OTHERWISE SPECIFIED TOLERANCES ARE XX 03 XXX 010 FRACTIONS 1 16 ANGLES 5 DIMENSIONS ARE IN INCHES DO NOT SCALE DRAWING SHEET NAME DRAWN BY APPROVAL XX XX XX 06 22 20 B SERLE T JAFA CHECKER B SERLE XX XX XX N A MATERIAL FINISH N A N A REVISIONS Rev Description Date Drawn By Checked By Approved A INITIAL RELEASE xx xx xx X...

Страница 24: ...V BZ Manual Drawings BZ 8 E GERM 005 8000 00 dft Germfree Laboratories UNLESS OTHERWISE SPECIFIED TOLERANCES ARE XX 03 XXX 010 FRACTIONS 1 16 ANGLES 5 DIMENSIONS ARE IN INCHES DO NOT SCALE DRAWING SHEET NAME DRAWN BY APPROVAL XX XX XX 06 22 20 B SERLE T JAFA CHECKER B SERLE XX XX XX N A MATERIAL FINISH N A N A REVISIONS Rev Description Date Drawn By Checked By Approved A INITIAL RELEASE xx xx xx X...

Страница 25: ...Horizontal Laminar Flow Workstation User Manual Appendix B Wiring Diagrams ...

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Страница 34: ...Horizontal Laminar Flow Workstation User Manual Appendix C Sensocon User Manual ...

Страница 35: ...Bulletin 102 0 Installation and Operation Manual Series A3 and A4 Differential Pressure Controller Sensocon Inc Phone 863 248 2800 Fax 863 248 2798 www sensocon com ...

Страница 36: ... Specifications 1 3 Dimensional Drawings 2 Installation 2 1 Mounting 2 2 Pressure Connections 2 3 Electrical Connections 3 Operation 3 1 Display 3 2 Key Function 4 Programming 4 1 Menu Structure 4 2 Security Level 4 3 Main Menu 4 4 Set Up Menu 4 5 Secure Menu 5 Other Features 5 1 Moving Program Variables 5 2 Opti Link 5 3 Limited Warranty ...

Страница 37: ...utput and improved accuracies There is also a low cost weatherproof cover available for outdoor applications Example A3110 06 Description Model A Round Panel Mount Housing 3 LED display process arch LCD Display 4 LED display process arch OLED Control 1 Control 2 SPDT relays 0 None Transmitter 1 4 20 mA 0 1 Accuracy 1 0 50 01 0 0 50 02 0 1 03 0 2 04 0 3 05 0 4 06 0 5 07 0 8 08 0 10 09 0 15 10 0 20 ...

Страница 38: ...ce with optional cover the entire product is weatherproof Relays 2 SPDT 8 Amps 250 VAC 5A 30 VDC Electrical Connections screw terminals Response Time 100 ms Display 4 Digit red LED digits LCD or OLED programming display Process Connection Push on connection for 3 16 tubing Agency Approvals Pending UL C UL CE Patents Pending Custom calibrations including improved accuracy and improved thermal effec...

Страница 39: ...control with the provided gasket through the hole and secure it to the panel with the provided mounting tabs and screws Retrofitting old technology is also easy with the Series A3 and A4 They have been designed to fit in industry standard holes ranging from 4 9 16 to 4 13 16 so simply remove the old device and insert the new control into the existing cut out 2 INSTALLATION 2 1 Mounting ...

Страница 40: ...he weather proof cover has been attached the control can be mounted to any flat surface with the four mounting screws provided with the cover Flush Mounting with Weather Proof cover The Series A3 and A4 can also be flush mounted with a weather proof cover The procedure is the same as above but utilizes two extra long mounting screws provided with the weather proof cover for the bottom two panel co...

Страница 41: ...the front display will give a positive value If the HI connection has a lower absolute value than the LO connection the front display will give a negative value NOTES 1 Supply Voltage is universal from 16 265VAC or VDC 2 For internally sourced 4 20 mA loop maximum loop resistance is 750 Ω for externally sourced loop at 36 VDC maximum loop resistance is 1800 Ω 3 Isolation Relays 1000 VAC to all oth...

Страница 42: ...show either 3 or 4 digits based on the users preference The LCD or OLED display is used for programming and displaying the unit of measure and up to 4 other user selected program parameters The LED indicators for SP1 SP2 and Alarm give indication when the parameter is in the actuated state The A3 and A4 have four buttons located on the face of the control used for programming There is an up arrow ...

Страница 43: ...he accept button for three seconds this will accept the change and take you back to the menu you were currently in At any point while in a parameter change screen you can hold the cancel button for one second to return to the previous menu without accepting a change to that parameter To manually reset the alarm after an alarm condition has occurred if this feature is used hold the right and left a...

Страница 44: ...p value Screen Saver Saver Off On Contrast Contr N lo N med N hi I lo I med I hi K Factor Kfact value Duct Shape Xsect circ rect Duct Diameter diam value Duct Width X dim value Duct Height Y dim value Zero Zero Reset Span Span value Reset Access Access Main Set up Secure none Factory Default Reset No Yes Process Output Lo pol value Process Output Hi poh value Secure Menu Current Power source P S O...

Страница 45: ... Set Point is selected there will be no parameters for Set Point 2 or Alarm in the programming 1 Set Point 1SP For control with one SPDT relay 2 Set Point 2SP For control with two independent SPDT relays Set Point Alarm SPAL For control with one SPDT relay and one alarm relay Alarm AL For alarm operation only Set Point Settings Set 1 Set 2 Each set point can be entered as a high and low value for ...

Страница 46: ...OFF OFF ON ON ON Relay Action Direct Acting Reverse Acting DB direct acting DB reverse acting Actuation 1 act 2 act The actuation parameter determines whether the relays will react to increasing or decreasing pressure This parameter also affects the status of the LED indicators on the front of the gauge The above graphs illustrate the differences Direct The relays turn on with increasing pressure ...

Страница 47: ...e the relay when the process is below the low alarm set point The high and low alarm can be used together so the alarm relay is actuated when the process is above or below the high alarm and low alarm set points respectively The selection will dictate which alarm parameters are shown in the Main Menu The below figure shows the three alarm types High Alarm hi High alarm Low Alarm lo Low alarm High ...

Страница 48: ...ed since the last time it was reset value Allows the user to manually reset the value Mode Mode The control is capable of measuring and displaying pressure velocity or flow For velocity and flow a flow sensing device such as a pitot tube or orifice plate with a know flow coefficient is required For flow it is also necessary to know the dimensions of the duct that the flow is being measured in so t...

Страница 49: ...40 0 036 0 074 1 868 2 491 249 1 0 249 0 578 2 000 0 167 50 80 5 080 0 072 0 147 3 737 4 982 498 2 0 498 1 156 3 000 0 250 76 20 7 620 0 108 0 221 5 605 7 473 747 3 0 747 1 734 4 000 0 333 101 6 10 16 0 145 0 294 7 473 9 964 996 4 0 996 2 312 5 000 0 417 127 0 12 70 0 181 0 368 9 342 12 45 1245 1 245 2 890 8 000 0 667 203 2 20 32 0 289 0 588 14 95 19 93 1993 1 993 4 624 10 00 0 833 254 0 25 40 0 3...

Страница 50: ...ntrast Contr This allows the image and contrast of the programming display to be adjusted Normal low N lo Normal image low contrast Normal medium N med Normal image medium contrast Normal high N hi Normal image high contrast Inverted low I lo Inverted image low contrast Inverted medium I med Inverted image medium contrast Inverted high I hi Inverted image high contrast K Factor Kfact For flow and ...

Страница 51: ...revent tampering Once this parameter is set a security code must be entered to regain access to the locked menus as shown in the below table This feature can be used in conjunction with moving program variables section 5 1 to grant or restrict access to specific variables Secure menu Secure Selecting Secure will give the user access to all menus Set up menu Set up Selecting Set Up will give the us...

Страница 52: ...current loop The programming menu can be fully customized by the user Parameters can be moved from one menu to another This allows the user to reorganize the menu structure to better fit their needs or to put unused or unwanted parameters in one menu and then lock that menu so that those variables can not be accessed To move a program parameter to another menu highlight the parameter to be moved a...

Страница 53: ...te the program has been successfully uploaded to the control LIMITED WARRANTY SENSOCON warrants its products to be free from defects in materials and workmanship for a period of one 1 year from the date of shipment subject to the following terms and conditions Without charge SENSOCON will repair replace or refund the purchase price at SENSOCON s option products found to be defective in materials o...

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