压力开关说明书.docx
《压力开关说明书.docx》由会员分享，可在线阅读，更多相关《压力开关说明书.docx（22页珍藏版）》请在冰豆网上搜索。
压力开关说明书
DG型气体压力开关
使用说明书
●请阅读和保持一个安全的地方
解释符号
●,1,2,3...=功能
➔=用法说明
所有工作必须在阅读操作说明后才能进行！
警告！
不正确的安装、调整、修改、操作或维护可能导致伤害或物质损失。
使用前先阅读说明书。
这个单位必须安装依照本条例的实施。
标准声明
We,themanufacturer,herebydeclarethattheproductsDG..,markedwithproductIDNo.CE0085AP0467,complywiththeessentialrequirementsofthefollowingDirectives:
–90/396/EECinconjunctionwithEN1854,
–73/23/EECinconjunctionwiththerelevantstandards.
Therelevantproductscorrespondtothetypetestedbythenotifiedbody0085.
ComprehensivequalityassuranceisguaranteedbyacertifiedQualitySystempursuanttoDINENISO9001accordingtoannexII,para-graph3ofDirective90/396/EEC.ElsterKromschröderGmbH,Osnabrück
测试
➔电源电压、环境温度和外壳——看类型的标签。
➔最大介质温度:
-15+80°C。
在系统暴露于更高的热应力、热设备上时压力开关必须安装在上游。
DG..B型
➔正压时1号位置为进气
DG..U型,DG..H型,DG..N型
➔正压时1号或者2号位置为进气，气体为空气、天然气或者烟气（其他位置密封），通风时气体从3号或者4号位置离开。
➔负压时3号或者4号位置为进气，气体为空气、天然气或者烟气（其他位置密封），通风时气体从1号或者2号位置离开。
➔对于压差时，用1号或2号和3号或4号，气体为空气、天然气或者烟气，其他位置密封。
➔在连接3号和4号位置时使用过滤垫，防止气体中的杂质弄脏电触点。
➔DG..B,DG..Uswitchwithrisingpressure.
➔DG..Hswitchesandlocksoffwithrisingpressure–withmanualreset.
➔DG..Nswitchesandlocksoffwithfallingpressure–withmanualreset.
➔Fitanupstreamrestrictorifthesystemissubjecttogreatlyfluctuatingpressures（seeacces-
sories）.
➔Theservicelifewillbeshorterifsubjecttoozoneconcentrationsexceeding200µg/m3.
Installation
➔Fittingpositionasrequired,pref-erablywithdiaphragmvertical,withunobstructedviewoftheadjustmentdial.Ensurethatnodirtormoisturecanpenetrateopenventilationports.
➔Thehousingmaynotcontactmasonry.Minimumclearance20mm.
➔AvoidsubjectingtheDGtostrongorviolentvibrations.
➔Condensationmustnotbeallowedtogetintothehousing.Atsubzerotemperaturesmalfunctions/failuresduetoicingcanoccur.
➔Whenusingsiliconetubes,onlyusesiliconetubeswhichhavebeensufficientlycured.
➔Continuousoperationathightemperaturesacceleratestheageingofelastomermaterials.
➔Protectfromdirectsunlight（evenwithIP65）.
DG..B..S
➔DonotconnectgasbutonlyO2orNH3tothepositivepressureport1.Ensurethatnogreaseisusedduringinstallation.
DG
1Flushthepipework.
2Usesuitablesealingmaterial.
3Ifdirtcanaccumulateatport
3or4,usethefilter,OrderNo.74916199.
4FittheDG.
Tightnesstest
Adjustingtheswitchingpressureps
调整范围（调整区间=±15%调整范围最大值）
微分切换在最大值和最小值之间设置
切换压力和可能被重置之间的区别
在测试过程中设定的偏差,根据EN1854气体压力开关
在测试过程中设定的偏差,根据EN1854空气压力开关
DG6B,DG6U
0,4–6mbar
0,2–0,3mbar
±15%
±15%oder/or/ou/of/oppure/ó±0,1mbar
DG10B,DG10U
1–10mbar
0,25–0,4mbar
±15%
±15%
DG30B,DG30U
2,5–30mbar
0,35–0,9mbar
±15%
±15%
DG50B,DG50U
2,5–50mbar
0,8–1,5mbar
±15%
±15%
DG150B,DG150U
30–150mbar
3–5mbar
±15%
±15%
DG500B,DG500U
100–500mbar
8–17mbar
±15%
±15%
DG10H,DG10N
1–10mbar
0,4–1mbar
±15%
±15%
DG50H,DG50N
2,5–50mbar
1–2mbar
±15%
±15%
DG150H,DG150N
30–150mbar
2–5mbar
±15%
±15%
DG500H,DG500N
100–500mbar
4–17mbar
±15%
±15%
1Disconnectthesystemfromtheelectricalpowersupply.
Wiring
DG
➔24–250VAC:
I=0.05–5A,cosϕ=1,
I=0.05–1A,cosϕ=0.6;
DG..G
➔12–250VAC:
I=0.01–5A,cosϕ=1,
I=0.01–1A,cosϕ=0.6;
12–48VDC:
I=0.1–1A.
➔IftheDG..Ghasswitchedavoltage>24Vandacurrent>0.1Aonce,thegoldplatingonthecontactswillhavebeenburntthrough.Itcanthenonlybeoperatedatthispowerratingorhigherpowerrating.
➔Contacts3and2closewhensubjecttoincreasingpressure.Contacts1and3closewhensubjecttofallingpressure.
1Disconnectthesystemfromtheelectricalpowersupply.
234
5
6
789
234
5
6
789
Functioncheck
➔Werecommendafunctioncheckonceayear.
Accessories
Fasteningset
Connectingset
➔Formonitoringtheminimum/maximuminletpressurepe.
Externaladjustment
PIAtestkey
Restrictororifice
Tubeset
➔foraironly
Standardcouplerplug
Pilotlampredorgreen
for110/120VACor220/250VAC
LEDred/greenfor24VDC/AC
Gaspressureswitch
DG..T,DG..HT,DG..NTfornaturalgas,cleancokeovengas,LPG,biologicallyproducedmethaneandair
Operatinginstructions
Installing
wiring
adjusting
byauthorizedtrainedpersonnelonly!
WARNING!
Improperinstallation,adjustment,modification,operationormaintenancecouldleadtoinjuryordamage.Alladjustmentsmustbemadebyaqualifiedtechnician.WiringmustcomplywithlocalcodesandtheNationalElectricalCodes.Topreventthepossibilityofpropertydamageturnoffelectricalpower,depressurizeinstallation,
升级会员 