Kepital F30-03
康斐尔空气过滤器介绍
1.5
622 394 45
1.2
594 594 22
0.6
594 289 22
0.3
594 495 22
0.5
495 495 22
0.4
495 394 22
0.3
622 495 22
0.5
622 394 22
0.4
尺寸公差范围(size tolerance):0-3mm
风量 / 初阻力
（m3/h / Pa)
No.88, Lane 377,ChenHui Rd,Zhangjiang High-Tech Park,Pudong District, Shanghai
Tel：021-68797689
Fax：021-5080 9987
Product
通风用化纤袋式粗效预过滤器
Hi-cap，synthetic media bag prefilter
1700 / 18 3400/ 68
850 / 18 1700 / 68
1420 / 18 2840 / 68
1180 / 18 2360 / 68
935 / 18 1870 / 68
1480 / 18 2960 / 68
1860 / 18 3720 / 68
1700 / 20 3400 / 70
850 / 20 1700 / 70
30/30 CL2 24 x 20 x 4
4"
30/30 CL2 20 x 20 x 4
30/30 CL2 20 x 16 x 4
30/30 CL2 25 x 20 x 4
30/30 CL2 25 x 25 x 4
30/30 CL2 24 x 24 x 2
丹佛斯FC301 302 选型指南
紧跟新潮流，新方法和新功能发展，节省更多能源 或提供新技术机会得以提高产品质量或缩短工厂停 工时间。
在全球各地都可获得通过经认证的材料和培训师 提供的相同质量的培训。培训可在 Danfoss 办公地 也可直接在客户自己的办公地进行。培训由当地培 训师主持，他们对于可能影响性能的许多条件拥有 广泛的经验，确保您能够充分利用 Danfoss 解决方 案。
| 0.25 kW – 400 kW | VLT® AutomationDrive
3
50°C 环境温度，无需降容
控制最低达 0.37 kW 的 电动机而无需在 690 V 主电源
上使用降压变压器。
4
VLT® AutomationDrive | 0.25 kW – 400 kW |
全球网络
Danfoss 拥有高效的全球物流组织，能够快速将 VLT® 变频器发送至任何目的地。
EMC标准
标准和要求
EN 55011 工厂操作人员必须遵循 EN55011
EN/IEC 61800-3 变频器厂商必须遵循 EN61800-3
FC 301/302 遵循 1)
详情请参阅VLT® AutomationDrive设计指南 1) 符合上述电磁兼容类别取决于所选择的滤波器
B级 民用和轻工业
C1类 一类环境，家庭和
Danfoss 的全球支持组织能够做出快速反应，解决 问题以 帮助您缩短停机时间。当出现问题时，Danfoss 全球 热线可帮助您快速高效地找到正确的解决方案。
为了在主要工业区提供快速支持，Danfoss 还配备了 高素质非常敬业的专业人员。通过在全球各地的化 工热点、海运枢纽和主要工业区附近设立支持中 心，Danfoss 专家可随时快速到达变频器所在位置 并提供应用专业知识。
coc武器列表
说明：db：伤害加权，具体数值因人而异。
勒颈：关于这种可能性，请参照“擒抱”技能的规则。
晕眩：在1轮、1d6轮或由守秘人指定的时间内，除了招架什么都做不了。
而且，必须通过一个[意志值×莫兰上校的气动步枪：靠压缩空气发射，不需要火药，因而比较安静。
[译注：典出自福尔摩斯的故事] 1/2、1/3：只有2轮或3轮攻击一次，才能做到准确攻击。
1或2：在同一轮中，可以选择只用一边、还是同时用两边的枪管射击。
①：这种武器、或武器类型可以造成贯穿。
②：本武器的伤害加权算上了马的冲击力。
③：采用“溺毙、窒息”的规则。
④：本枪械是重型加特林机关枪，一般装备在直升机上。
若想用手持的方式射击，则至少需具备16点力⑤：轻型反坦克武器，一次性使用。
☆：本武器不适用于“近距离平射”的规则。
★：本武器若造成贯穿，便可任意截下对手的一条肢体。
连射：民间不可能搞到能连射的枪械。
在这里给出的价格都是黑市价。
NA：平民禁止购买任何自动武器，即使拥有也是违法行为。
但有可能获得把合法武器改装成自动武器的故障值：如果一次火器发射的检定结果大于等于该武器的故障值，不仅攻击不会命中，子弹也会成为哑 但如果拿的是带杠杆式枪机的步枪，枪就会卡壳，射手必须用1d6个战斗轮的时间投“机器维修 而且，如果在检定时投出了96～00，枪就会被彻底弄坏。
直到枪被修好、或者被彻底弄坏为止散弹枪子弹的口径规格：10号为[1d10+8]、12号为[1d10+6]、16号为[1d10+5]、20号为[1d10+4]；基本射稀有：可能指已经属于古董的武器、也可能指专供收藏用的精致武器，亦有可能指违法的武器。
各时代价格：现代的价格指收藏品市场上的价格，1920年代的价格指市价。
单位一律为美元。
2码、3码等等：在伤害栏中所示的这个距离，指爆炸后的杀伤半径。
在爆炸范围之外，每远离一段相当阔剑地雷：这种武器的弹道是密集的射束流，其杀伤范围为120度。
附加说明(1)：标红色的武器未收录于规则书上，是我自己加的，数值也是我自己估算的，供有爱者使用附加说明(2)：标蓝色的武器出自日本Arclight公司出版的扩展规则《克苏鲁与帝国》，供有爱者使用。
新宝马3系F30平台普通车辆电气系统技术剖析（一）
F30平台的车辆电气系统绝大部分以当前宝马车型为基础，本文没有涉及到的普通车辆电气系统方面的技术信息可参见新宝马7系F01/F02车型的相关资料。
F30平台采用了F20平台车型已有的多个集中式控制单元。
与F20平台类似，F30平台安装了前部电子模块(FEM)和后部电子模块(REM)两个控制单元。
FEM和REM控制装置取代曾在E90上使用过的控制单元，如接线盒(JB)、脚部空间模块(FRM)、便捷登车及启动系统(CAS)、舒适登车系统(CA)和驻车距离控制(PDC)等。
一、车载网络系统1．总线概览F30平台使用FlexRay作为实现行驶动态控制系统与发动机管理系统之间联网的系统总线，F 30平台总线概览如图1所示，F 30平台的F l e x R a y 系统电新宝马3系F30平台普通车辆电气系统技术剖析(一)◆文/山东 刘春晖2012年7月13日，基于“F30”平台的宝马新世代3系列在中国正式发布，现已开始销售。
新宝马328i使用新的4缸涡轮增压发动机，0-100km/h加速仅需5.9s，与6缸涡轮增压发动机相比，只相差0.4s，从加速性能上来说，性价比很高。
宝马新世代3系列除了大家熟悉的四门、双门、敞篷、旅行车版本之外，还加入了一位新成员，即3-GT series。
新3系将采用宝马MSB车身架构。
本文将介绍宝马新3系F30平台普通车辆电气系统技术剖析。
图1 F30平台总线概览图1—有唤醒权限的控制单元 2—启动和同步FlexRay 总线系统的启动节点控制装置 ACSM —高级碰撞和安全模块(ACSM) AHM —挂车模块 AMPT —高保音响放大器 COMBOX —Combox(Combox 紧急呼叫、Combox 多媒体) CON —控制器 D-CAN —诊断控制器区域网 DDE —数字式柴油机电子系统 DME —数字式发动机电子系统(DME) DSC —动态稳定性控制系统 DVDC —DVD 换碟机 EGS —变速电子器控制系统 EKPS —电子燃油泵控制系统 EPS —电子助力转向系统(电动机械式助力转向系统) 以太网—用于局域数据网络的有线数据网络技术 FEM —前部电子模块 FLA —远光灯辅助系统 FlexRay —用于汽车的快速预设容错总线系统 FZD —车顶功能中心 GWS —选挡开关 HEADUNIT —主控单元(车辆信息计算机或基本型主控单元) ICM —集成式底盘管理系统 IHKA —自动恒温空调 K -CAN —车身控制器区域网络 K-CAN2—车身控制器区域网络2 KAFAS —基于摄像机原理的驾驶人辅助系统 KOMBI —组合仪表(MOST 仅限与SA6WA 一起提供) MOST —多媒体传输系统 OBD —车载诊断(诊断插座) PDC —驻车距离监控系统(车辆带有SA 5DP 驻车操作辅助系统时，集成在驻车操作辅助系统控制单元中，否则集成在后部电子模块控制单元内) PMA —驻车操作辅助系统 PT-CAN —动力传动系统控制器区域网络 PT-CAN2—动力传动系统控制器区域网络2 RAD —收音机 RDC —胎压控制单元(仅限美国版) REM —后部电子模块 SMFA —驾驶人座椅模块 SWW —变道警告装置 TRSVC —全景摄像机控制单元 VM —视频模块 VDM —垂直动态管理系统 ZGM —中央网关模块路图如图2所示。
DFQM1887 WOVEN YOKE FLARE SHIRT 11.20.12
3 1/2 9 5 1 3/8 1/2 3/4 5 3/4 7 3/4 5 3/4 7 1/2
1/2"
前育克高 肩点度 后育克高 领后中度 袖口收褶长
8 6 6
**DO NOT DELETE OR CHANGE THE ORDER OF THE EXISTING POM'S. ADDITIONAL POMS MAY BE ADDED BELOW THE EXISTING ONES. COSTING MUST BE BASED ON RVSD SPEC, NOT DEV. SPEC AND BE SUBJECT TO CHANGE IF NEEDED.
袖口、下摆1/8"双针
内缝4线拷边
ISO # 514-2N 4 THREAD OVER EDGE INSIDE ALL SEAMS
11/20/2012
1 of 5
LF USA
Revision history & Callouts
DAISY FUENTES
Season: Group: Agent: Maker: Country of Origin Size Range:
肩斜 过肩 前身长 后身长 肩宽 缝-缝 前胸宽 后背宽 胸围 腰围
1 1/2 1/2 26 30 14 3/4 13 1/2 14 1/4 17 21
下摆 沿底边直量 袖笼
23 7 1/2
210a SS - SLEEVE LENGTH - SHORT - SHOULDER SEAM TO HEM
袖长 袖肥 袖笼下1" 217 HF - 1/2 ELBOW - 12 1/2" DOWN FROM肘宽 肩缝下12 1/2" SHOULDER SEAM
POM MSDS
Material Safety Data Sheet (MSDS) Page : 1/5 Product Name : KEPITAL F10-XX+, F15-XX+, F20-XX+, F25-XX+, F30-XX+, F40-XX+, FV-XX+, TX-XX+Revision Date : Jul 17, 2012 (Re. 12) This Safety Data Sheet is according to Regulation EC No. 1907/2006Product Name: KEPITAL F10-XX+, F15-XX+, F20-XX+, F25-XX+, F30-XX+, F40-XX+,FV-XX+, TX-XX+“XX” : may be replaced with two digits(01,02,03,11,20,21,30,31,33,34,40,52,63, etc)“+”: may be attached to alphabets (A, F, H, HK, L, M, N, O, S, T, LOF, etc)Product Description: Polyoxymethylene Copolymer, Acetal copolymerProduct Usage (Restriction) Extrusion, Injection (Except usage)Company Identification KOREA ENGINEERING PLASTICS Co., Ltd.450, KONGDUCK-DONG, MAPO-GU, SEOUL, KOREATel) 82–2–707-6831~9 Manufacturer Identification KOREA ENGINEERING PLASTICS Co., Ltd. Ulsan plant84, GOREA-RO, JANGSAENGPO, NAM-GU, ULSAN 680-050, KOREATel) 82-52-279-7830~4 Classification of the substance or mixtureNo need for classification according to GHS criteria for this product.Label elements & Statements of hazardThe product does not require a hazard warning label in accordance with EC Directives.Other hazardsNFPA(SCALE 0-4 ) : Health =1, Flammability =1, Physical Hazard=0(Note : These ratings are determined by Korea Engineering Plastics Co., Ltd.)Composition: INGREDIENT CAS NUMBER Content(%)Base Resin 24969-26-4 > 97Other Additives - < 3Formaldehyde 50-00-0 < 0.1This is a polymeric material. And hazardous constituents are wetted by the polymer system, and therefore, present no likelihood of exposure under normal conditions of processing and handling. This product is considered hazardous under OSHA Regulations due to the release, if overheated, of formaldehyde, an OSHA regulated material.InhalationPellets is not likely to be inhaled due to physical form. When gas and fumes from molten plastics is inhaled, remove to fresh air. Seek medical attention if breathing difficulties occur.Skin ContactIf hot and molten polymer or hot vapors contact skin, cool rapidly with cold water. If polymer is stuck to skin, do not remove, and seek medical attention. And allow adhered polymer to come off naturally. Removal of adhered polymer may result inmore tissue damage than if polymer is allowed to come off over them.Eye Contact Immediately flush eyes with plenty of water for at least 15mimuts. Seek medical attention if discomfort persists. Ingestion If a significant quantity has been swallowed, give two glass of water to dilute. Seek medical attention.Most important symptoms and effects, both acute and delayedNo significant reaction of the human body to the product known.Note to PhysiciansThis product is essentially inert and nontoxic. However, if it is overheated or burns, gases such as carbon monoxide and formaldehyde may be released. Those exposed to off-gases may need to have their arterial blood gases and carboxyhemoglobin levels checked. If the carboxyhemoglobin levels are normal and the exposure occurred in an enclosed space, asphyxia (carbon dioxide replacing oxygen) is a possibility. Formaldehyde is a respiratory irritant gas. If patients may have inhaled high concentrations of irritating fumes they should be monitored for delayed onset pulmonary edema.Suitable extinguishing mediaCarbon dioxide, Dry Chemical, Foam or Water spray.Special hazards arising from the substance or mixtureHazardous Product of Combustion : Carbon monoxide and Carbon dioxide,Formaldehyde vaporsHazardous of fire, explosion :- Overheating may result in release of formaldehyde, which may irritate the eyes, skin and respiratory tract.- Base resin dust/powder has a US Bureau of Mines relative dust explosion hazard rating of severe.Firefighting InstructionsFirefighters should wear self-contained breathing apparatus and full fire-fighting turn-out gear(bunker gear). Keep personnel removed from and unwind of fire. Water should be used to keep fire-exposed containers cool. Product burns with a very hot, but very faint blue flame. Water, foam and dry chemical may cause damage to electrical equipment.Personal precautions, protective equipment- High risk of slipping due to leakage/spillage of product. In Case of Spill or Leak, sweep or gather up spills and place in proper container for recovery or disposal. Keep unnecessary people away, isolate hazard area and deny entry.- Information regarding personal protection can be found in section 8.Environmental precautionsNo special environmental precautions necessary.Methods and material for containment and cleaning upMove to the approved place based on the disposal regulation.HandlingDo not handle hot or molten material without appropriate protective equipment. Maintain good housekeeping in work areas.Do not exceed recommended process temperature to minimize release of decomposition products. Do not smoke in areas where polymer dust is present. Appropriate measures should be taken to control the generation and accumulation of dust during conveying and processing operations.StorageStore in well-ventilated area away from heat and sunlight. Keep Container closed to prevent contamination.Engineering ControlsLocal Exhaust : Recommended when appropriate to control employee exposure to dust or process vapors.General : May not be adequate as the sole means to control employee exposure.Protective EquipmentEyes Safety eyewear recommendedSkinWhen thermal or melt processing, wear long pants, long sleeves, well insulated gloves, and face shield when there is a chance of contact.InhalationA NIOSH approved respirator is recommended if there is a possibility of dust generation above permissible exposure limitsor that decomposition vapors may be generated.Exposure GuidelinesOperations involving grinding and machining of parts should be reviewed to assure that particulate levels are kept below recommended standards. Formaldehyde is a hazardous degradation product.Ingredient Agency ValueFormaldehyde PEL (OSHA ) TWA - 0.75 ppm, ; STEL 2ppmTLV(ACGIP) Ceiling 0.3ppmNuisance/Inert Dust PEL (OSHA ) 15 mg/cu m(total)5 mg/cu m (respirable)Nuisance Particulates TLV(ACGIP) 10 mg/cu m (total)3 mg/cu m (respirable)Physical Form :Solid / PelletsOdor : Slight, specificOdor threshold :No data availablepH Value :Not applicableMelting Point :165 deg C (329 deg F)Boiling Point and Range : Not applicable (Solid)Flash Point : > 93 deg C ( > 200 deg F) by Tag Closed Cup Method.Evaporation rate: Not applicableInflammability: No data availableExplosion range : No data availableVapor Pressure :< 0.001mm HgWater Solubility : Negligible < 0.1%Relative vapor density : Not applicableSpecific Gravity : 1.38 - 1.42Partitioning coefficient n-octanol/water (log Kow): No data availableIgnition temperature : 350 deg C (662 deg F)Decomposition temperature : > 240 °CViscosity : Refer to the grade data sheetMolecular weight : Not applicableChemical Stability : Stable under normal conditions of use and storage.Condition to AvidMaintain polymer melt temperature below 230 deg C.(446 deg F). Avoid prolonged exposure at or above the recommended processing temperature.Incompatibility with Other MaterialStrong acids, base (decomposes forming formaldehyde) and oxidizing materials. At melt temperatures, acetal resins are incompatible with halogenated polymer such as PVC, PVDC and any elastomers containing halogenated polymers.DecompositionDecomposition of this material depends on the length of time exposed to elevated temperatures and may be accelerated by contaminants, pigments and other additives.Hazardous Decomposition Products : Trioxane, Formaldehyde and Formic acid.Hazardous Polymerization : Will not occur.No specific information available on the product.Ecotoxicity : No specific information available on the product.Environmental Information : This material is considered to be non-biodegradable.DisposalRecycling is encouraged. Dispose in accordance with all applicable regulations. This product, as shipped, in not a RCRA hazardous waste under present EPA regulations.UN No. : Not classified as a dangerous good under transport regulations. (UN RTDG)Shipping information : Not applicableTransport hazardous grade : Not applicableContainer grade : Not applicableMarine Pollution : Not applicableSafety measure for transport : Not applicable- Fire : No available data- Leak : No available dataU.S. RegulationsTSCA : All the ingredients are listed in the TSCA Inventory or are compliant with the TSCA polymer Exemption Rule.SARA :This product does not contain any toxic chemicals subject to the reporting requirements of Section 313 of the Emergency Planning and Community Right-to-Know Act of 1986 and of 40 CFR 372.Labeling According to EEC Directives : Not subject to labeling.Germany Regulations : Not classified according to German “Hazardous Substance” regulations.EU regulation : Not contain materials listed in ;WEEE (Waste on Electrical and Electronic Equipment): EU-Directive 2002/96/ECRoHS(Restriction of Hazardous Substances in electrical and electronic equipment) : EU-Directive 2002/95/ECDirective 2003/11/EC: Restriction (ban) of Pentabromodiphenylether and octabromodiphenyletherSource- Hazardous Substances Data Bank (HSDB)- UN RTDG (Recommendations on the Transport of Dangerous Good) Rev.17- International Uniform Chemical Information Database (IUCLID)Revision : 12 (July 17th 2012)DisclaimerThis product is not intended for use in medical applications involving permanent implantation in the human body.The information contained herein is based on the present state of our knowledge. We don’t suggest or guarantee that any hazards listed herein are the only ones that exist. Korea Engineering Plastics Co., Ltd. makes no warranty of any kind concerning the safe use of this material in your process or in combination with other substances. Effects can be aggravated by other materials and this material may aggravate the effects of other materials. Users have the sole responsibility to determine the suitability of the materials of any use and the manner of use contemplated. Users must meet all applicable safety and health standards.- The End of MSDS -。
Parker Hannifin 品牌 P2 P3 系列 piston 气动泵维修手册说明书
1 P2-000-3400 2 P2-105-3200 3 P2-105-5003 4 P2-105-3000 5 P2-105-0209 6 P2-105-3203 7 P2-105-5010 8 P2-105-0214 9 P2-105-3102 10 P2-105-3001 11 P2-105-3202 12 P2-105-2400 13 P2-145-0201 14 P2-105-3925 15 P2-105-1020-01 16 P2-000-8950-16 17 P2-145-3101 1 18 P2-105-5008 19 P2-105-3303 20 P2-105-3902 21 P2-000-3900 0 22 39X10 23 210X134 24 210X208 25 210X283 5 27 299X124 28 256X248 29 256X543 30 256X559 31 256X575 32 256X579 33 2012 -9 34 2133 -9 35 2044 -7 36 2240 -7 37 2243 -7 38 2263 -7 39 3916 -9 40 108X2 41 P2-105-3300 41 P2-105-3304 42 P2-105-0212 43 P2-105-0223
1 IMPELLER RING - CCW
54 P2-105-0222-03
1 BARREL ASSEMBLY - CCW
MAX PRESSURE SETTING MINIMUM ADJUSTMENT - PB MAXIMUM ADJUSTMENT - PB MIN ADJUSTMENT - ALL OTHER MAX ADJUSTMENT - ALL OTHER
THRU-SHAFT
Precision 3930 机架灰尘过滤器安装指南说明书
Precision 3930 Rack Dust filter Installation GuideNotes, cautions, and warningsNOTE: A NOTE indicates important information that helps you make better use of your product.CAUTION: A CAUTION indicates either potential damage to hardware or loss of data and tells you how to avoid the problem.WARNING: A WARNING indicates a potential for property damage, personal injury, or death.© 2018 Dell Inc. or its subsidiaries. All rights reserved. Dell, EMC, and other trademarks are trademarks of Dell Inc. or its subsidiaries. Other trademarks may be trademarks of their respective owners.2018 - 07Rev. A001 Before you begin (4)Safety instructions (4)Before working inside your computer (4)Safety precautions (5)Electrostatic discharge—ESD protection (5)ESD field service kit (6)Transporting sensitive components (7)After working inside your computer (7)2 Dust Filter for Precision Rack 3930 (8)Installing the dust Filter (8)Installing the front bezel (9)3 Getting help (12)Contacting Dell (12)Contents3Before you begin Safety instructionsUse the following safety guidelines to protect your computer from potential damage and to ensure your personal safety. Unless otherwise noted, each procedure in this document assumes that the following conditions exist:•You have read the safety information that shipped with your computer.•A component can be replaced or, if purchased separately, installed by performing the removal procedure in reverse order. WARNING: Disconnect all power sources before opening the computer cover or panels. After you finish working inside thecomputer, replace all covers, panels, and screws before connecting to the power source.WARNING: Before working inside your computer, read the safety information that shipped with your computer. For more safety best practices information, see the Regulatory Compliance home page at /regulatory_complianceCAUTION: Many repairs may only be done by a certified service technician. You should only perform troubleshooting and simple repairs as authorized in your product documentation, or as directed by the online or telephone service and support team.Damage due to servicing that is not authorized by Dell is not covered by your warranty. Read and follow the safety instructions that came with the product.CAUTION: Handle components and cards with care. Do not touch the components or contacts on a card. Hold a card by its edges or by its metal mounting bracket. Hold a component such as a processor by its edges, not by its pins.CAUTION: When you disconnect a cable, pull on its connector or on its pull-tab, not on the cable itself. Some cables have connectors with locking tabs; if you are disconnecting this type of cable, press in on the locking tabs before you disconnect the cable. As you pull connectors apart, keep them evenly aligned to avoid bending any connector pins. Also, before you connect acable, ensure that both connectors are correctly oriented and aligned.NOTE: The color of your computer and certain components may appear differentlythan shown in this document.NOTE: System sounds an alarm for 4 seconds and then shut down if top cover is removed while the system is running. The system will not power on if the top cover is removed.Before working inside your computerT o avoid damaging your computer, perform the following steps before you begin working inside the computer.1 Ensure that you follow the Safety Instruction.2 Ensure that your work surface is flat and clean to prevent the computer cover from being scratched.3 Turn off your computer.4 Disconnect all network cables from the computer.CAUTION: To disconnect a network cable, first unplug the cable from your computer and then unplug the cable from thenetwork device.5 Disconnect your computer and all attached devices from their electrical outlets.6 Press and hold the power button while the computer is unplugged to ground the system board.NOTE: To avoid electrostatic discharge, ground yourself by using a wrist grounding strap or by periodically touching anunpainted metal surface simultaneously as touching a connector on the back of the computer.1 4Before you beginSafety precautionsThe safety precautions chapter details the primary steps to be taken before performing any disassembly instructions.Observe the following safety precautions before you perform any installation or break/fix procedures involving disassembly or reassembly:•Turn off the system and all attached peripherals.•Disconnect the system and all attached peripherals from AC power.•Disconnect all network cables, telephone, and telecommunications lines from the system.•Use an ESD field service kit when working inside any tabletnotebookdesktop to avoid electrostatic discharge (ESD) damage.•After removing any system component, carefully place the removed component on an antistatic mat.•Wear shoes with nonconductive rubber soles to reduce the chance of getting electrocuted.Standby powerDell products with standby power must be unplugged before you open the case. Systems that incorporate standby power are essentially powered while turned off. The internal power enables the system to be remotely turned on (wake on LAN) and suspended into a sleep mode and has other advanced power management features.Unplug AC power from the system, press and hold the power button for 15 seconds to discharge residual power in the system board. BondingBonding is a method for connecting two or more grounding conductors to the same electrical potential. This is done by using a field service electrostatic discharge (ESD) kit. When connecting a bonding wire, ensure that it is connected to bare metal and never to a painted or nonmetal surface. The wrist strap should be secure and in full contact with your skin, and ensure that you remove all jewelry such as watches, bracelets, or rings prior to bonding yourself and the equipment.Electrostatic discharge—ESD protectionESD is a major concern when you handle electronic components, especially sensitive components such as expansion cards, processors, memory DIMMs, and system boards. Very slight charges can damage circuits in ways that may not be obvious, such as intermittent problems or a shortened product life span. As the industry pushes for lower power requirements and increased density, ESD protection is an increasing concern.Due to the increased density of semiconductors used in recent Dell products, the sensitivity to static damage is now higher than in previous Dell products. For this reason, some previously approved methods of handling parts are no longer applicable.Two recognized types of ESD damage are catastrophic and intermittent failures.•Catastrophic – Catastrophic failures represent approximately 20 percent of ESD-related failures. The damage causes an immediate and complete loss of device functionality. An example of catastrophic failure is a memory DIMM that has received a static shock and immediately generates a "No POST/No Video" symptom with a beep code emitted for missing or nonfunctional memory.•Intermittent – Intermittent failures represent approximately 80 percent of ESD-related failures. The high rate of intermittent failures means that most of the time when damage occurs, it is not immediately recognizable. The DIMM receives a static shock, but the tracing is merely weakened and does not immediately produce outward symptoms related to the damage. The weakened trace may take weeks or months to melt, and in the meantime may cause degradation of memory integrity, intermittent memory errors, etc.The more difficult type of damage to recognize and troubleshoot is the intermittent (also called latent or "walking wounded") failure. Perform the following steps to prevent ESD damage:•Use a wired ESD wrist strap that is properly grounded. The use of wireless anti-static straps is no longer allowed; they do not provide adequate protection. T ouching the chassis before handling parts does not ensure adequate ESD protection on parts with increased sensitivity to ESD damage.Before you begin5•Handle all static-sensitive components in a static-safe area. If possible, use anti-static floor pads and workbench pads.•When unpacking a static-sensitive component from its shipping carton, do not remove the component from the anti-static packing material until you are ready to install the component. Before unwrapping the anti-static packaging, ensure that you discharge static electricity from your body.•Before transporting a static-sensitive component, place it in an anti-static container or packaging.ESD field service kitThe unmonitored Field Service kit is the most commonly used service kit. Each Field Service kit includes three main components: anti-static mat, wrist strap, and bonding wire.Components of an ESD field service kitThe components of an ESD field service kit are:•Anti-Static Mat – The anti-static mat is dissipative and parts can be placed on it during service procedures. When using an anti-static mat, your wrist strap should be snug and the bonding wire should be connected to the mat and to any bare metal on the system being worked on. Once deployed properly, service parts can be removed from the ESD bag and placed directly on the mat. ESD-sensitive items are safe in your hand, on the ESD mat, in the system, or inside a bag.•Wrist Strap and Bonding Wire – The wrist strap and bonding wire can be either directly connected between your wrist and bare metal on the hardware if the ESD mat is not required, or connected to the anti-static mat to protect hardware that is temporarily placed on the mat. The physical connection of the wrist strap and bonding wire between your skin, the ESD mat, and the hardware is known as bonding. Use only Field Service kits with a wrist strap, mat, and bonding wire. Never use wireless wrist straps. Always be aware that the internal wires of a wrist strap are prone to damage from normal wear and tear, and must be checked regularly with a wrist strap tester in order to avoid accidental ESD hardware damage. It is recommended to test the wrist strap and bonding wire at least once per week.•ESD Wrist Strap T ester – The wires inside of an ESD strap are prone to damage over time. When using an unmonitored kit, it is a best practice to regularly test the strap prior to each service call, and at a minimum, test once per week. A wrist strap tester is the best method for doing this test. If you do not have your own wrist strap tester, check with your regional office to find out if they have one.T o perform the test, plug the wrist-strap's bonding-wire into the tester while it is strapped to your wrist and push the button to test. A green LED is lit if the test is successful; a red LED is lit and an alarm sounds if the test fails.•Insulator Elements – It is critical to keep ESD sensitive devices, such as plastic heat sink casings, away from internal parts that are insulators and often highly charged.•Working Environment – Before deploying the ESD Field Service kit, assess the situation at the customer location. For example, deploying the kit for a server environment is different than for a desktop or portable environment. Servers are typically installed in a rack within a data center; desktops or portables are typically placed on office desks or cubicles. Always look for a large open flat work area that is free of clutter and large enough to deploy the ESD kit with additional space to accommodate the type of system that is being repaired. The workspace should also be free of insulators that can cause an ESD event. On the work area, insulators such as Styrofoam and other plastics should always be moved at least 12 inches or 30 centimeters away from sensitive parts before physically handling any hardware components•ESD Packaging – All ESD-sensitive devices must be shipped and received in static-safe packaging. Metal, static-shielded bags are preferred. However, you should always return the damaged part using the same ESD bag and packaging that the new part arrived in.The ESD bag should be folded over and taped shut and all the same foam packing material should be used in the original box that the new part arrived in. ESD-sensitive devices should be removed from packaging only at an ESD-protected work surface, and parts should never be placed on top of the ESD bag because only the inside of the bag is shielded. Always place parts in your hand, on the ESD mat, in the system, or inside an anti-static bag.•Transporting Sensitive Components – When transporting ESD sensitive components such as replacement parts or parts to be returned to Dell, it is critical to place these parts in anti-static bags for safe transport.ESD protection summaryIt is recommended that all field service technicians use the traditional wired ESD grounding wrist strap and protective anti-static mat at all times when servicing Dell products. In addition, it is critical that technicians keep sensitive parts separate from all insulator parts while performing service and that they use anti-static bags for transporting sensitive components.6Before you beginTransporting sensitive componentsWhen transporting ESD sensitive components such as replacement parts or parts to be returned to Dell, it is critical to place these parts in anti-static bags for safe transport.Lifting equipmentAdhere to the following guidelines when lifting heavy weight equipment:CAUTION: Do not lift greater than 50 pounds. Always obtain additional resources or use a mechanical lifting device.1Get a firm balanced footing. Keep your feet apart for a stable base, and point your toes out.2Tighten stomach muscles. Abdominal muscles support your spine when you lift, offsetting the force of the load.3Lift with your legs, not your back.4Keep the load close. The closer it is to your spine, the less force it exerts on your back.5Keep your back upright, whether lifting or setting down the load. Do not add the weight of your body to the load. Avoid twisting your body and back.6Follow the same techniques in reverse to set the load down.After working inside your computerAfter you complete any replacement procedure, ensure that you connect any external devices, cards, and cables before turning on your computer.1 Connect any network cables to your computer.CAUTION: To connect a network cable, first plug the cable into the network device and then plug it into thecomputer.2 Connect your computer and all attached devices to their electrical outlets.3 Turn on your computer.4 If required, verify that the computer works correctly by running ePSA diagnostics.Before you begin7Dust Filter for Precision Rack 3930Installing the dust Filter1 Align and insert the right end of the dust filter into the system.NOTE:These steps are for the systems purchased without Dust Filter and Front Bezel.2 Fit the left end of the bezel onto the system.28Dust Filter for Precision Rack 39303 Install the:a Front bezel.Installing the front bezel1 Align and insert the right end of the bezel into the system.Dust Filter for Precision Rack 393092 Press the release button and fit the left end of the bezel onto the system.10Dust Filter for Precision Rack 3930Dust Filter for Precision Rack 393011Getting helpContacting DellNOTE: If you do not have an active Internet connection, you can find contact information on your purchase invoice, packing slip, bill, or Dell product catalog.Dell provides several online and telephone-based support and service options. Availability varies by country and product, and some services may not be available in your area. T o contact Dell for sales, technical support, or customer service issues:1Go to /support.2Select your support category.3Verify your country or region in the Choose a Country/Region drop-down list at the bottom of the page.4 Select the appropriate service or support link based on your need.312Getting help。