wika mwh 不銹鋼系列膜片活塞式壓力開(kāi)關(guān)

高壓范圍600bar ip65

 pressureswitch with diaphragm piston
stainless steel version, ip 65, for high pressure ranges modelmwh

 pressureswitch with diaphragm piston model mwh

   applications
     pressure monitoring and direct switchingof electrical loads
     for high pressure ranges
     for gaseous and liquid, aggressive andhighly viscous or contaminated media, also in aggressiveambience
     process industry: chemical/petro-chemical,on- and offshore, technical gases, environmental technology,machine building and general plant construction, water
treatment, pharmaceutical industry

 
   specialfeatures
     case made ofstainless steel, electropolished
     ingress protection ip 65, nema 4
     ambient temperature -40 ... +85 °c
     1 or 2 independent switch points, highcontact rating up to 15 a / ac 220 v
     setting ranges up to 600 bar, max. testpressure up to 700 bar

 

      description

      thesehigh- pressure switches have been specificallydeveloped for safety-critical applications. high andproduct   manufacturing to iso  9001:2000 ensuresreliable monitoring of your plant. in  production, theswitches are traced by assurance software at every step andsubse are 100 %   tested.
    all wetted parts materials are fromstainless steel as standard. each switch    family is available in ip 65, ex-ia or ex-d versions (ex-d seemodel mah, data sheet pv 31.15).in order to ensure as flexibleoperation as possible, the pressure switches are e withmicro switches, which make it possible to switch an electrical loadof up to 15 a / ac 220 v directly. for smaller contact ratings,such asfor plc applications,argon gas filled micro switches with gold-plated contacts can beselected as an option.

    by using a diaphragm measuringsystem, the model mwh pressure switch is extremely robust andguarantees optimal operating characteristics at very highpressures.

 

      switchpoints
   the switch points can be set toyour re, free-ofcharge.
  please specify:
switch point,switching direction for each contact (e.g. switch point 1: 0.5 bar,falling, switch point 2: 3 bar, rising) with two micro switches,the switch points can be set independently of eachother.

   after unscrewing the case cover, switch pointadjustment can be made using the adjustment screw. the switch pointis settable within the entire measuring range with thefollowing
  general rule:
   definethe value a = 2x repeatability + switch hysteresis
   if the pressure is rising, the switch point should beset between (min. + value a) up to max. of the setting range.
   if the pressure is falling, the switch point should beset between min. up to (max. - value a) of the settingrange.

  example:
   settingrange: 0 ... 1 bar with one switch contact repeatability: 1 % of 1bar = 10 mbar
   switch hysteresis = 15 mbar (see table setting ranges)value a = 2 x 10 mbar + 15 mbar = 35 mbar
   for rising pressure, the switch point should be setbetween 35 mbar and 1 bar.
   if the pressure is falling, the switch point should beset between 0 up to 965 mbar.
   for optimal performance we suggest the switch pointlies between 25 % and 75 % of the setting range.

  electrical connection
  ? npt female, cable connector using internal terminal block,groundconnection using internal and external screw, max.ground cablecross-section 4 mm2
   pressure switch certifiedper:
   pressure e directive97/23/ec (ped, annex 1,category iv, safety accessories, module b +d)
   low voltage directive 73/23 eec and 93/68 eec
   dielectric strength
  safety class i (en 61298-2: 1997-06)
   mounting
   direct orwall mounting
   preferred connection location of the processconnection should be below. alternatively the instrument can beinstalled so that access to internals is from front of theenclosure and the electrical connection is placed on side.
  weight
   approx. 1.7kg

 

     options
   other processconnection, also with adapter
   nbr sealing towards the pressure chamber
   wiring 3/4 npt, g 1/2 or m20 x 1.5 (female)
   cable gland on request
   2" pipe-mounting kit (with clamping element)
   version for off-shore or tropicalised application4)
   version for ammonia applications 4)
   version to
   gas ex-ia dust ex-iad gr. ii cat. 1 gd 5) electricalcharacteristics: ui = 30 v
                                                                       ii = 100 ma
                                                                        pi= 0.75 w
                                                                       ci = 0 μf
                                                                        li= 0 mh
   accessories:
   pressuregauge valves model 910.11, see data sheet ac 09.02
   barstock valves model 910.81, see data sheet ac09.18

   4) inert gas filleduired
   5) gold-plated and inert gas filleduired

 

  approvals andcertificates
   gost-r certificate
   test certificate *ca* (confirmation of the switchingaccuracy)
   test report *cp* (3-time listing of the switch point,requires switch point specification)
   material certificate 3.1 per en10204

 

   dimensions inmm

  

  orderinginformation

   model/ switch contacts with version / setting range / process connection/ electrical connection / switch point(s) / switching direction(s)/ options

  example:mwh -xx - u1 - 4/40 bar - 1/4"npt-f - 1/2"npt-f

   

 歡迎致電咨詢(xún)訂購(gòu)wika mwh 不銹鋼系列 膜片活塞式壓力開(kāi)關(guān) 高壓范圍600bar ip65

電話:010-51669912 56293293

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"WIKA MWH 不銹鋼系列 膜片活塞式壓力開(kāi)關(guān) 高壓范圍600barIP65"的類(lèi)型為機(jī)械壓力開(kāi)關(guān)，額定電壓是220（V），Zui大工作壓力為600bar（Pa），型號(hào)是MWH，額定電流為15（A），品牌是WIKA/威卡，機(jī)械壽命為100（萬(wàn)次），產(chǎn)品認(rèn)證是PED證書(shū)，加工定制為是