%/301`3-+2% - Agilent Technologies
Contents
1. Figure 2 9 A System Il Rail with Support Columns and Attaching Hardware Rack Lifting Hooks Four lifting hooks are fitted to the top of the rack Together they can support the weight of a rack loaded to maximum recommend gross weight Each hook is capable of supporting 227 kg 500 lbs Maximum recommended gross weight is 816 kg 1800 lbs 10 Anti tip Stabilizer Standard on each Agilent rack is a retractable anti tip stabilizer mechanism Located at the bottom center of the rack it provides temporary additional stability when installing or removing equipment components The anti tip stabilizer should also be used when slide mounted components are in their extended position WARNING The stability work sheets should be used whenever a new system is configured or a change to a system is made to assure rack stability NOTE Use the ballast accessory P N C2790A when permanent additional stability is required See the worksheets in Appendix A to determine your ballast requirements Casters Each Agilent rack is provided with four 3 inch diameter smooth rolling heavy duty casters to facilitate moves over short distances CAUTION A fully loaded cabinet s maximum gross weight of 816kg 1800 lbs can overload a raised floor Levelers Levelers are located in each corner to level and stabilize the rack For maximum accuracy use a level while adjusting the feet PDU A 110V option AW3 or 220V option AW5 PDU must2. ciccstessztansustsvsucstecccdecsessetesconcedtevareusssceaceds ia A ed iii 3 PHYSICAL SPECIFICA TIONS eriari soiree E a a taa 3 IBI E AA A A AA dada 4 Ventilation and Heat Dissipation esses eene eren neret entren 8 EE e at yg iu e Ee A 8 STANDARD RACKS ipee nori EH ia e o A 8 MOP AS AS AA AA A A A a 8 Side E 8 Rear DUOT iac e aeta de tite cadens Wack tek uae dopo teks da da 9 Mounting Columns A A Deviate Acta oth dee teneant 9 SuUppokt Rails A Rei ettet 10 Rack Lifting Hooks E ERR cta EST P e etia ete eie ee erred die tenti 10 EUIS EET 11 GUI M 11 A PEE 11 RE 11 TPDU Insiall Kil A eru o t e dt LIN eT UE 11 E TEE 11 Filler A A EE 12 BUS A EE 12 Monitor Mount di 12 SUpport Rails uiii iota e ee Roe ee a Eege it 12 VAT Rilao5 ec e berti E eege osten aeu e Doo eene ee ed brote chon dd ede dta 12 NonAgilent Rail aua o e e Be dee Eeer dci ancora 12 3 SE H E iiia thi sacs babes re Ai til 13 FLOOR SPACE AND LOADING eene eee ci 13 RACK SPC ALIS A ee eie mta ii dead enean bte abe ene 13 EQUIPMENT INSTALLATION GUIDELINES eeeeeeeeeeeneee een n eene en nn nennen enne nein nnne nens 13 Cooling ooa Iit ote dieu i enata aded ete ee 14 Weight Gnd Deltgen ee RET er A dete a 14 ACOUSTIC CONSIDERATIONS esee nenne enn nnn nnne nennen nennen tenen en nnne 17 Estimating Total Noise iet ei eben oa d enituit bei hd eee ene 18 d PROCEDURES iiie ici 19 RECEIVING es CER 19 Unpacking Gnd Handling a ede D sols
3. Repackaging the Rack for Shipment Use the original packing material to repackage the empty rack for shipment Before shipment securely place a tag on the container and equipment to identify the owner and the service to be performed Include the rack model number To repackage the rack follow the repackage checklist below and refer to the unpacking instructions for details 1 2 3 4 5 22 Assemble the original Agilent packing materials Connect the loading ramp to the pallet Raise the leveling feet Push the rack up the ramp front first Secure the rack to the pallet with the shipping clamps shipping block and rear door support 2 qoo o Place the anti static bag over the rack Place the top cap packing material and loading unloading ramp on top of the rack Place the corrugated wrap around the rack Put the box top on the box 0 Secure the top to the pallet with top to bottom plastic bands Removal and Replacement This section provides removal and replacement procedures for the standard assembly Rear Door Removal 1 2 3 Open rear door Disconnect the bonding wire from the door Grasp the rear door support and lift the door straight up and away from the cabinet Rear Door Replacement 1 2 3 4 Hold the rear door by the support column Align the door hinge pins over the rack hinge holes Lower the door onto the rack hinge Reconnect the door onto the rack hinge Top Cap Rem
4. a total of 1800 pounds of equipment Top Cap Assy Rear Door NONE EN S ETT NY ll na LLL Forehead Assy Side Cover Rear Door Hinge 2 pics Leveler 4plcs Caster 4 pics em H Figure 2 1 Exploded View of an Agilent rack Dimensions The side view in Figure 2 2 shows valid dimensions for the E7590A E3661B and E3662B Top C op Cover 1 1 D Q y Do of 18 of A E Computer Body 8 AU us al 44 5 mm Bezel ne ol Es o Rear do Peripheral Body sl Door mu je Uo of e o Rail ES 0000 _ _ Column gt E o o o o re 55 0 o E E 609 6 E 655 0 5 716 0 oll Le 905 0 Figure 2 2 Side View of Top of Rack with Installed Components The dimensions of the E7590A are shown in Figures 2 4 All dimensions are in millimeters 2 f 1111 25 25 EIA Units 1320 0000000000000000000000000000000000000000000 0000000000000000000000000000000000000000000 A oooooooogboooo Si 900900 000dqP0000 S mb N e 00 Figure 2 4 E7590A Dimensions Front View 1 1 131 86 Side Panel 600 0 o000OcO0O0000000000000000000000000000000000000000000
5. no direct connection to earth ground according toEN60950 Grounding WARNING This is a safety class product and has a protective earthing grounding terminal There must be an uninterruptable safety earth ground from the main power source to the product s input wiring terminals power cord or supplied cord set Whenever it is likely that the protection has been impaired disconnect the power cord until the ground has been restored Leakage Current WARNING Due to types of products that can be installed in this cabinet there is a risk of high leakage current 3 5 mA Reliable ground circuit continuity is vital for safe operation of this product To reduce the risk of electric shock earth ground connection is essential before connecting the power supply Never operate this cabinet with the ground conductor disconnected Power Limitations CAUTION To reduce the risk of overload do not load any single PDU with more than a maximum of 16 Amperes In addition do not load a single NEMA 5 15 or IEC 320 receptacle with more than 15 Amperes Cabinet Stability WARNING To reduce the risk of cabinet instability install counter ballast at the bottom rear of the cabinet before installing any computer components CAUTION To reduce the risk of cabinet instability fully extend the stabilizer before extending any devices Extend only one device at a time Do not stand or sit on any extended device Qualified service personnel should do all
6. nuts on the column Reinstall the component Slide the rail clamp up to the rear of the component and insert the clamp screw Leveler or Caster Removal 1 Turn the rack power switch OFF Disconnect AC power to the rack Carefully move the rack to an area with enough room to allow the rack to be laid on its side Remove all equipment components from the rack Carefully lay the rack on its side Unscrew the leveler or remove the castor by removing the four mounting nuts and pulling the castor off Leveler or Caster Replacement 26 1 ak YN With the rack on its side screw in the leveler or place the castor over the four mounting studs and attach with the four mounting nuts Carefully lift the rack to the upright position Install all equipment components Return the rack to its install site Reconnect AC power Ballast Removal Remove the two screws holding the ballast on the rear rack columns Use caution not to drop the ballast when removing these screws CAUTION The ballast weighs 30 lbs and can damage equipment or cause personal injury if dropped Ballast Replacement Attach the ballast to the rear columns using the two screws Ballast should be installed at the bottom of the rack resting adjacent to the rear base If ballast cannot be installed at the base of the rack it can be installed using the rack shelf Install additional ballast adjacent to each other so that they provide support for each o
7. of 4 dB Using Figure 3 5 4 dB difference results in adding 1 4 dB to the higher noise resulting in an estimated 55 4 dB total noise 18 4 Procedures This chapter describes unpacking and repackaging the Agilent rack for shipment and common procedures such as positioning racks removal and replacement procedures Receiving This section contains information pertaining to unpacking inspection and reshipment Make sure that all doors elevators and passageways in route to the site are large enough to accommodate the rack The packaged physical specifications for the racks are listed below Rack Height Width Depth Weight E7590A 1 52 m 60 in 76 m 30 in 1 7 m 67 in 140 6 kg 310 Ibs E3661B 1 8 m 72 in 76 m 30 in 1 7 m 67 in 161 kg 355 Ibs E3662B 2 2m 87 5in 76 m 30 in 1 7 m 67 in 177 kg 390 lbs Floor elevators and lifting equipment must be of sufficient capacity Ifthe rack package is damaged upon receipt request that the carrier s agent be present when the protective covering is removed Inspect the rack for damage scratches dents bent pieces etc If the rack is damaged notify the carrier and the nearest Agilent Technologies Sales and Service office immediately CAUTION Do not lift an unpackaged rack with a fork lift Unpacking and Handling The lifting brackets supplied with the rack are suitable for lifting the rack when fully loaded Use the following procedure to remo
8. ts eet tere atis 19 Repackaging the Rack for Shipment essen eren rene nennen 22 REMOVAL AND REPLAGEMENT geeiert ees rent e edere ETE o Ee rers 23 R ar Door Removals siu eae See obest eredi DEE 23 Rear Door Replacement 5 2 da ee ette M REL esc snos 23 Top Cap Removal cre 5 ee S ee Ee a eee eie teats 23 Top Cap Replacement 3 ei esee ta aO desee De e eee pee 23 Side COVER Removals snm hm en A A er E e a dd thes 24 EE 24 Forehead Assembly Removal eese eee tren eerte erret rennen enne 24 Forehead Assembly Replacement esses eene enne eere eene ener 24 Dase Cover Removal 352 Medo pe e eee i eee e er e tot eee eee rtg 25 Base Cover Replacement eese ain aansien ieai eE E eniti neret rene eren nennen 25 Anti tip Stabilizer Removal eese eee eene reete nennen trennen rennen ener 25 Anti tip Stabilizer Replacement eee nee naar 25 Rear Door Hinge Removal eese eene rentre eere nr treten triente nennen 25 Rear Door Hinge Replacement essent rentrer tren ere nne 25 Raib Removal o sni ande iot DD eaa de E OIN 26 R il Replacement in euim eine dedo sina basis al pectet 26 Leveler ori Caster Removal p mte rame terr eset ec olde en 26 Leveler or Caster Replacement essent eene teen nn enne ennt 26 BOLAS REMOVAL lt a 27 Eet Replacement NEESS EENEG 27 Door BUMP OP en A A dau yon e A EE 27 1 Safety and Regulatory Inform
9. 090000000 000000000000090 d f m 82 EIA Units 1422 4 450 8 465 1 482 6 d i I99900000000000000000000000000000000000000000000000080000000q00000000000001 Side Panel 6 35 The dimensions of the E3661B are shown below 1620 Front View Figure 2 5 E3661B Dimensions The dimensions of the E3662B are shown below 1 1 600 0 Side Panel 0000000000000000000000000000000000000 000000000000009Q000000G8l0000000000000Q 41 EIA Units 1822 5 le A 450 8 465 1 482 6 A 00000000000000 000000qQ0000000000000 d 0000000000000000000000000000000000000 Side Panel 2020 Front View Figure 2 6 E3662 Dimensions Ventilation and Heat Dissipation Air is primarily drawn through the opening at the bottom of the rear door Through convection the heated air rises to the exhaust By either simple convection or a combination with an optional extractor fan the heated air exhausts though the vented top cap illustrated in Figure 2 7 Figure 2 7 Air Flow through the rack When the proper system is installed internal temperature rise is typically less than 15C 27F over ambient temperature NOTE Agilent recommends that you monitor the internal temperature of the rack The internal temperature should not exceed
10. anti tip assembly is not a substitute for ballast Monitor Mount Kit An optional monitor mounting kit is available Support Rails Two optional support rail types are available VXI Rail VXI rails are used with Agilent VXI mainframe equipment Non Agilent Rail Non Agilent rails are used with any non Agilent products that mount at the bottom of the EIA envelope The Non Agilent rails extend lower into the EIA envelope than the standard and the VXI rails 12 A Set Up This chapter defines the floor loading requirements and set up guidelines Floor Space and Loading Observe floor loading requirements especially raised floors and ensure adequate space before moving your Agilent rack and all safety items while moving At maximum gross weight the floor must be able to support 677 kg sq cm 2000 Ib sq in WARNING It is the customer s responsibility to determine the floor loading capacities at the installation site and for the entire route when moving Failure to do so could result in personal injury and or equipment damage Because the weight is concentrated on the four casters a maximum weight rack requires a reinforced floor Agilent Technologies recommends removing components and moving them separately when moving a rack over a floor especially a raised floor of unknown capacity WARNING Heavily loaded racks may require may require reinforced tiles or a sub structure on a raised floor Rack Space Select a l
11. ation For your protection this product has been tested for conformance to various national and international regulations and standards The scope of this regulatory testing includes electrical and mechanical safety electromagnetic emissions immunity ESD acoustics and hazardous materials Where required certifications are obtained from third party test agencies Certification marks appear on the product label In addition various regulatory bodies require some information under the headings below This product and related documentation must be reviewed for familiarization with safety markings and instructions before operation WARNING The WARNING sign denotes a hazard It calls attention to a procedure practice or situation which if not done correctly or adhered to could result in injury Do not proceed beyond a WARNING sign until the indicated conditions are fully understood and met CAUTION The CAUTION sign denotes a hazard It calls attention to an operating procedure practice or situation which if not done correctly or adhered to could damage or destroy part or the entire product Do not proceed beyond a CAUTION sign until the indicated conditions are fully understood and met Safety Warnings The following warnings and cautions are applicable to all Agilent racks Please observe all safety precautions and warnings This product has not been evaluated for connection to an IT power system an AC distribution system having
12. be ordered with each rack A maximum of two PDUs can be installed in one rack PDU Install Kit A PDU installation kit is installed at the factory for the above PDU each installation kit has the capability for installation of a second PDU A second PDU can be ordered and installed by the customer Extractor Fan An extractor fan assembly can be ordered and consists of two 100 cubic feet per minute tube axial fans attached to a fan tray The fan assembly is attached to the top rear of the rack frame 11 Filler Panels To ensure adequate cooling in racks using extractor fans all unused front panel space must be covered with blank filler panels an the rear door must be closed Filler panels are made from 1 57 mm 0 062 in aluminum formed to give the thickness of standard 4 7 0 187 in distance from the panel mounting flange The panels are supplied with EIA IEC mounting holes and attaching hardware The filler panels are designed for use with the rack with EIA IEC mounting holes and attaching hardware They can be ordered in 7 different sizes measured in EIA units mm or in Ballast Ballast is available in 30 Ib kits and may be required when using slide mounted products and or keyboard work surface products Use the stability work sheets in the Procedures chapter to determine ballast requirements CAUTION Do not ship racks with ballast installed CAUTION Always mount ballast in the rear of the rack NOTE The
13. e mE Agilent Instrument Rack E7590A 1 3 m e g ee E3661B 1 6 m e E3662B 2 0 m 9 e e e e A User s Manual E Agilent Technologies ovember 2001 N n Printed in U S A E1101 5967 9318 Notice The information contained in this document is subject to change without notice AGILENT TECHNOLOGIES MAKES NO WARRANTY OF ANY KIND WITH REGARD TO THIS MATERIAL INCLUDING BUT NOT LIMITED TO THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE Agilent Technologies shall not be liable for errors contained herein or for incidental or consequential damages in connection with the furnishing performance or use of this material This document contains proprietary information which is protected by copyright All rights are reserved No part of this document may be photocopied reproduced or translated into another language without the prior written consent of Agilent Technologies Copyright O 1999 2001 AGILENT TECHNOLOGIES Inc Contents 1 SAFETY AND REGULATORY INFORMATION occonoonconoononnoonosncnncononaonononncnronnonacononnonerococoronnonnonos 1 KENE 1 tmp Me E NLA sen a 1 He CIAO CIR E 1 PowerLimitatiOns eer eU ree e AR TVA AAA A Des Tae or gea eo a eiue Tab E 2 Cabinet Stability a TR A re ER Te rei deed dur de eere pelos ederet dn 2 ACOUSTICS Germany REPRE 2 ACCESSOTIES Lo ie Gin caine dina the EES eeh da etse A dia idad te Mae 2 2 DESCRIBITON
14. e two sidebars that go into the rack frame and pull the stabilizer away from the rack Anti tip Stabilizer Replacement 1 Align the two extension arms with the opening at the bottom of the rack and insert the arms at an angle This allows the stop tabs to go into the rack cavity for the stabilizer 2 Push the anti tip stabilizer all the way into the rack Rear Door Hinge Removal 1 Remove the rear door refer to Rear Door Removal 2 Remove the two mounting screws from the rack column on the upper hinge also remove the two mounting screws in the side panel and lift the door hinge away Rear Door Hinge Replacement 1 Align the door hinge with the pressed nuts in the rear rack column 2 Insert and tighten the two mounting screws through the hinge into the column on the upper hinge also insert the two mounting screws into the side panel 25 Rail Removal This procedure is also used to remove a rail clamp 1 Remove the component mounted on the rail being removed NOTE Be sure to tag the cables disconnected for easy reconnection Remove the two rail mounting screws Lift the rail out of its notches in the support columns To remove the rail clamp remove the clamp screw and slide the clamp out of the rail groove Rail Replacement Slide the rail clamp onto the rail Insert the rail tabs into the appropriate support column notches Insert and tighten the two mounting screws through the rail into the clip
15. equation in powers of 10 dB units are Log base 10 units 10 1085 1019 Evaluate the left side of the equation 100 000 3 162 277 66 10 3 262 277 6 10 Take the log of both sides of the equation return to dB units log 3 262 277 66 dB x 10 dB 6 51 dB x 10 dB 17 Now solve for x x 65 1 dB Thus adding 50 dB to 65 dB results in a 0 1 dB increase in noise Example 2 What is the maximum estimated noise level of a product want to install if the system is currently rated at 65 dB and my limit is 70 dB Original equation with variable x x dB 70 dB 65 dB Divide by 10 x 10 dB 70 10 dB 65 10 dB x 10 dB 7 0 dB 6 5 dB x 10 dB 0 5 dB Write the equation in powers of 10 dB units are Log base 10 units 4040 1095 Take the log of both sides of the equation return to dB units x 10 dB log 0 5 6 837 dB Solve for x x 68 37 dB More than double the noise is required to increase the total noise from 65 dB to 70 dB Estimating Total Noise For a quick estimate of total noise from two sources see Figure 3 5 if the two dB levels are within 16 dB of each other If the difference is greater than 16 dB the effect of the lower noise level is negligible zero for calculations 4037 3 0 2 0 Increase in Larger dB f 2 4 6 8 10 12 14 16 Difference in dB Figure 3 5 Estimating System Noise For example the combination of a 50 dB noise and a 54 dB noise has a difference
16. nal counterweight ballast If there are no work surfaces or keyboard mounting kits in the rack this worksheet can be ignored ANN 180 Ibs Figure 3 4 Moment Illustration for Work Surface Weight and Balance Worksheet 1 Total the weight of the keyboard work surface product D ft 2 Total the weight of all fixed and trained service personnel serviceable slide mounted products a Ibs b lbs c lbs d Ibs 3 Calculate the moment for both the M1 and the fixed and trained service personnel serviceable slide mounted products M2 totals from above M1 180 lbs D ft ft lbs moment of rack with 180 Ibs of force applied at D feet M2 254 00 ft lbs atb c d 1 00 ft ft lbs If M1 is less than or equal to M2 no additional counter weight is needed If M1 is greater than M2 use the formulas below to determine the required counter weight 4 Determine required counter weight if M1 is greater than M2 Force in lbs M1 M2 ft lbs 2 05 ft amount of force 2 05 ft Force in lbs M1 M2 ft lbs Height of drawer at its center 16 CAUTION The anti tip stabilizer is not a substitute for ballast Use the anti tip mechanism when loading or unloading equipment The first consideration after leveling the rack on the leveling feet and extending the anti tip mechanism is to load the rack from the bottom to the top Acoustic Considerations Airborne audible noise i
17. ng the most heat should be placed closest to the top to avoid heating the equipment above it as the generated heat rises in the convection current Figure 3 2 shows projected temperature with and without the extractor fan Ar C 40 Convection m Extractor Fan 1000 2000 3000 4000 5000 6000 Energy Output Watts Figure 3 2 Projected Temperature Vs Energy Output To ensure adequate cooling in systems using an extractor fan assembly all unused front panel space must be covered with blank filler panels and the rear door must be closed Weight and Balance Slide mounted products and work surface keyboard products need weight and balance calculations performed to determine the need for ballast to reduce the risk of cabinet instability The worksheets for both are provided on the following page If both slide mounted and work surface keyboard products are being used calculate both and add the results 14 Slide Mounted Products To reduce the risk of rack instability when operator serviceable slide mounted products are installed use the following worksheet to determine the need for additional counterweight ballast If there are no operator serviceable slidemounted products in the rack this worksheet can be ignored An operator serviceable slide mounted product is defined as any product which can be extended from the rack for servicing without requiring the use of any tool A product requiring the use of a tool to facilitate ser
18. non operator servicing Acoustics Germany Acoustic noise a weighted sound pressure level LpA measured at the operator s position normal operation to ISO 7779 Laemangabe Schalldruckpegel LpA gemessen an Arbeitsplatz bei normalem Betrieb nach DIN 45635 Teil 19 With extractor fan accessory 61 dB LpA Accessories CAUTION This product is designed for use with specific electrical accessories i e PDUs and fans The use of any other accessory is not recommended or supported 2 Description The Agilent 19 inch Electronics Industries Association ElA racks options and accessories are designed specifically to meet the needs of instrumentation customers and make installing devices in rack mounting systems simple The instrument racks consist of a welded cold rolled steel frame with removable top sides and rear door casters leveling feet and an anti tipping mechanism as shown in Figure 2 1 Internally rails that hold your equipment lock into slots in the vertical mounting columns These plus keyed slots provide for quick and accurate placement Physical Specifications The physical specifications for the racks are listed below Rack Height Width Depth Weight E7590A 1 3m 51 9 in 6 m 23 6 in 905 m 35 6 in 140 6 kg 310 Ibs E3661B 1 6 m 63 8 in 6 m 23 6 in 905 m 35 6 in 161 kg 355 lbs E3662B 20m 79 5 in 6 m 23 6 in 905 m 35 6 in 177 kg 390 lbs All rack models can be loaded with
19. ocation for the rack that will afford adequate space for the door to open freely and slide mounted equipment to be extended The rack requires a minimum of 600 mm for rear door clearance Equipment Installation Guidelines Several guidelines should be kept in mind when installing equipment into racks The two main considerations are weight and balance for slide mounted equipment and heat dissipation This section includes some worksheets for calculating the weight and balance for slide mounted products and an optional work surface A discussion of acoustic considerations is also included Always install equipment from the bottom to the top to keep the center of gravity as low as possible The order that you put them should be based on how well a given piece of equipment promotes or impedes heat removal if heat removal is an issue In the event that scratches are incurred during equipment installation note that touch up paint is available in a spray can via part number 6010 1522C 13 Cooling Instrument racking influences airflow in two significant ways the proximity to the rear of the rack and placement of the highest heat producing pieces of equipment Equipment protruding the closest to the back should be placed lower to prevent them from trapping heat and creating eddy currents as shown in Figure 3 1 Good Poor Figure 3 1 Good and Bad Examples of Equipment Racking Vs Cooling Components generati
20. oval 4 2 3 4 Open the rear door all the way Remove the two outside mounting screws at the top rear of the rack From the rear of the rack pull the top cap toward the back a few inches Lift the top cap from the rack Top Cap Replacement Open the rear door all the way From the rear of the rack place the top cap between the side covers and slide it forward until it stops Insert and tighten the two mounting screws at the top rear Close the rear door 23 Side Cover Removal Remove the two mounting screws at the bottom of the rack On the right side cover open the rear door and remove the two mounting screws on the upper door hinge that secure the hinge to the side panel Grasp the sides of the side cover and pull it up and away from the rack Side Cover Replacement 1 Grasp the sides of the side cover and align it with the rack at a vertical angle with the bottom out and the top toward the top of the rack Hook the top of the side cover over the top of the rack With the side cover up flush against the frame replace the two mounting screws at the bottom of the rack On the right side cover insert and tighten the two mounting screws on the upper door hinge that secure the hinge to the side panel Forehead Assembly Removal ak WN gt Turn the power OFF Disconnect AC power to the rack Remove top cap assembly refer to top cap removal Unplug the PDU harness es from the back of the main p
21. ower switch if present Remove the three mounting screws behind the forehead assembly Lift the forehead assembly up and away from the rack frame Forehead Assembly Replacement 1 Align the forehead assembly at the top of the rack frame so the three mounting holes match the frame holes and the mounting hooks on each side engage the mounting slots Insert the three mounting screws through the frame into the forehead assembly If appropriate attach the PDU harness es to the main power switch terminals Slip on connectors mate with spade terminals on the back of the switch Ensure each connector is fastened CAUTION Connections from the PDU front panel switch harness and the switch in the 4 5 6 24 forehead must be made correctly to ensure normal PDU operation Failure to do so can result in PDU failure or inconsistent PDU operation Replace the top cap refer to top cap replacement If appropriate connect AC power to the cabinet Turn the main power switch ON Base Cover Removal 1 Remove the mounting screw located on the top edge center of the base cover 2 Pull the base cover away from the bottom of the rack Base Cover Replacement 1 Align the base cover at the bottom of the rack and roll the base cover until the mounting holes in the rack and base cover align 2 Insert and tighten the mounting screw Anti tip Stabilizer Removal 1 Extend the anti tip stabilizer until it stops 2 Lift th
22. port Notches U 4445 O e EN for Rails Q i TA 127 O U 4445 OPES O op 15875 I O 427 D Front Rear A of Cabinet O Measurements 2U Envelope inmm O Every Fifth Rail Hole Notched EIA Spaced Mounting Holes Figure 2 8 Vertical Mounting Columns Each product or device installed requires one or more EIA unit increments One standard EIA rack mount increment is equal to 44 45 mm 1 75 in Support Rails Equipment is supported in the rack by support rails running from front to back The rails are screwed to the vertical columns See Figure 2 6 for an illustration of a System II rail System II rails are used with any instrument that conforms to Agilent System II product specifications and are the standard support rail Only after securing a pair of rails with screws can equipment be installed The mounting slots in the columns are positioned to make support rail placement convenient in EIA units Additionally they are marked to make matching the heights of matching support rails easy a Ke D el AE 20 ps is bk Front Column DAE S 80 PS oy he RSS A E 8 S YA 1 2A ho dh 5 Clip Nut S 5 vi O Dax i 4 t M 0 A Rear Column lS 2 bt E Ze ws Io qe E 02 Clip Nut 2 po p 0 z Mounting Screw g Rail g z TW A Mounting Screw Book 000060 060080060 06 c0b00b0 0600500 00060060000 0000 a 3s
23. s a primary concern for most system configurations Noise from forced convection thermal management solutions such as the extractor fan is directly proportional to the volume of air passing through the rack Total system noise should be considered during the design phase as it can affect areas where the system can be used operator comfort and safety and impact federal and regulatory agency compliance requirements for noise output Individual product noise can augment increase system noise above extractor fan ratings due to constructive additive interference between various in place frequencies and decrease below the extractor ratings if destructive subtractive interference is present Total system noise is impossible to calculate completely accurately Therefore system acoustic performance should be measured to ensure that acoustic goals are met However assuming the worst case constructive noise levels some general estimating guidelines can be used to combine noise levels of system products used together Acoustic sound power and pressure data are logarithmic not linear Thus 50 dB 44 dB 51 dB Below are two examples to illustrate the point Example 1 What is the estimated sound power output of my two component system if component 1 contributes 50 dB and component 2 contributes 65 dB Original equation with variable x 50 dB 65 dB x dB Divide the entire equation by 10 50 10 dB 65 10 dB x 10 dB Write the
24. the heat rating of any installed instruments Cable Access The base of the rack stops 100 mm short of the rear door providing an access path for power and signal cables Standard Racks The following parts are included with every Agilent instrument rack Top The top of the rack incorporates a ventilation path through the roof of the rack and the convection current heat exit for the heat generated by the installed equipment Side Panels Lift up and off side panels allow fast and easy access from either side for installation servicing and removal of equipment The top cap need not be removed to remove side panels Rear Door Standard is a right opening vented rear door with a lockable slam latch and sheetmetal catch providing ventilation and security The rear door can be mounted to open from either the left or the right Mounting Columns The rack columns are a folded design Running up the inside of the fold is rectangular mounting slots for the rails in screw holes for securing the rails The hole placement is chosen to conveniently place ElA racks Every fifth rectangular hole is slotted to make counting easier See Figure 2 5 The mounting columns bolt into the corners of the frame and then accept supporting rails into pre configured mounting slots Each of two rails attaches between the front and rear columns The equipment is then mounted on a pair of support rails that run from front to back Q 5 875 Sup
25. ther NOTE If ballast cannot be installed at the bottom of the rack it can be installed using the plain rack shelf The plain rack shelf can support up to four ballast 120 lbs units Remove ballast before moving or shipping a rack Door Bumper The rear and front door bumpers are self adhesive rubber bumpers stuck to the door Remove by prying off with a flat bladed screwdriver Apply by peeling off the adhesive cover and pressing into place 27
26. ve the rack from the shipping base One person can perform this procedure 1 Cut the poly strap bands around the shipping container See Figure 4 1 WARNING Wear protective glasses while cutting the plastic bands around the shipping container These bands are under tension When cut they can spring back and cause serious eye injury 2 Lift the cardboard top cap from the shipping box 3 Remove the corrugated wrap from the pallet 19 4 Remove the packing materials il UNS IWS Figure 4 1 Lifting the Packing Lid Off 5 Remove the folded ramp from the side of the rack 20 6 Remove the two bolts 1 holding the anti roll block in place at the bottom rear see Figures 4 2 Remove the block Figure 4 2 Unclamping 7 Remove the bolts 2 one on each side from the shipping clamp at the bottom of the frame They are bolted to the pallet Remove the clamp 3 Unfold and position the ramp so that the block of wood under the ramp locks into the edge of the pallet with the strip of wood forming a lip This holds the ramp in place while the rack is moved across the pallet and down the ramp See Figure 4 3 21 Figure 4 3 Positioning the Ramp 10 Raise the leveling feet all the way up before moving the rack WARNING Make sure that the leveling feet on the rack are raised before you roll the rack down the ramp and any time you roll the rack on the casters
27. vicing or extending the product is the definition of trained service personnel serviceable only When a trained service personnel serviceable only product is extended the use of the rack stabilizer assembly is required but counterweight ballast is not See Figure 3 3 AN e UK E gt Figure 3 3 Moment Illustration for Slide Mounted Products Weight and balance worksheet 1 Total the weight of operator serviceable slide mounted products A lbs B lbs C lbs D Ibs 2 Total the weight of all fixed and trained service personnel serviceable products a Ibs b Ibs c Ibs d Ibs 3 Calculate the moment for both the operator serviceable slide mounted products M1 and the fixed and trained service personnel serviceable products M2 totals from above M1 A B C D 1 25ft ft lbs M2 16 1 ftllbs a b c d 1 00ft ft lbs If M1 is less than or equal to M2 no additional counter weight is needed If M1 is greater than M2 use the formulas below to determine the required counter weight 4 Determine required counter weight if M1 is greater than M2 Force in lbs M1 M2 ft Ibs 2 05 ft amount of force 2 05 ft Each ballast kit weighs 30 Ibs 15 Work Surface Keyboard To reduce the risk of rack instability when using a work surface as illustrated in Figure 3 4 use the following worksheet to determine the need for additio
Download Pdf Manuals
Related Search