WIKA MWH 不锈钢系列 膜片活塞式压力开关 高压范围600bar IP65

wika mwh 不锈钢系列 膜片活塞式压力开关

高压范围600bar  ip65

 pressure switch with diaphragm piston
stainless steel version, ip 65, for high pressure ranges model mwh

 pressure switch with diaphragm piston model mwh

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

 
   special features
     case made of stainless steel, electropolished
     ingress protection ip 65, nema 4
     ambient temperature -40 ... +85 °c
     1 or 2 independent switch points, high contact rating up to 15 a / ac 220 v
     setting ranges up to 600 bar, max. test pressure up to 700 bar

      description

      these high-quality pressure switches have been specifically developed for safety-critical applications. high quality and product   manufacturing to iso  9001:2000 ensures reliable monitoring of your plant. in  production, the switches are traced by quality assurance software at every step and subsequently are 100 %   tested.
    all wetted parts materials are from stainless steel as standard. each switch     family is available in ip 65, ex-ia or ex-d versions (ex-d see model mah, data sheet pv 31.15).in order to ensure as flexible operation as possible, the pressure switches are equipped with micro switches, which make it possible to switch an electrical load of 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 be selected as an option.

    by using a diaphragm measuring system, the model mwh pressure switch is extremely robust and guarantees optimal operating characteristics at very high pressures.

      switch points
   the switch points can be set to your requirements, 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 each other.

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

  example:
   setting range: 0 ... 1 bar with one switch contact repeatability: 1 % of 1 bar = 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 set between 35 mbar and 1 bar.
   if the pressure is falling, the switch point should be set between 0 up to 965 mbar.
   for optimal performance we suggest the switch point lies between 25 % and 75 % of the setting range.

  electrical connection
   ½ npt female, cable connector using internal terminal block,ground connection using internal and external screw, max.ground cable cross-section 4 mm2
   pressure switch certified per:
   pressure equipment directive 97/23/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 or wall mounting
   preferred connection location of the process connection should be below. alternatively the instrument can be installed so that access to internals is from front of the enclosure and the electrical connection is placed on side.
  weight
   approx. 1.7 kg

     options
   other process connection, 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 application 4)
   version for ammonia applications 4)
   version to
   gas ex-ia dust ex-iad gr. ii cat. 1 gd 5) electrical characteristics: ui = 30 v
                                                                        ii = 100 ma
                                                                        pi = 0.75 w
                                                                        ci = 0 μf
                                                                        li = 0 mh
   accessories:
   pressure gauge valves model 910.11, see data sheet ac 09.02
   barstock valves model 910.81, see data sheet ac 09.18

   4) inert gas filled contacts required
   5) gold-plated and inert gas filled contacts required

  approvals and certificates
   gost-r certificate
   test certificate *ca* (confirmation of the switching accuracy)
   test report *cp* (3-time listing of the switch point, requires switch point specification)
   material certificate 3.1 per en 10204

   dimensions in mm

  ordering information

   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

 欢迎致电咨询订购wika mwh 不锈钢系列 膜片活塞式压力开关 高压范围600bar ip65

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"WIKA MWH 不锈钢系列 膜片活塞式压力开关 高压范围600bar IP65"的类型为机械压力开关，额定电压是220（V），Zui大工作压力为600bar（Pa），型号是MWH，额定电流为15（A），品牌是WIKA/威卡，机械寿命为100（万次），产品认证是PED证书，加工定制为是