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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- 卓尔瑞华(北京)科技有限公司 商铺
- 认证
- 报价
- 人民币¥1000.00元每个
- 加工定制
- 是
- 品牌
- wika/威卡
- 型号
- mwh
- 所在地
- 北京市北京经济技术开发区文化园西路6号院20号楼1807
- 联系电话
- 010-51669912
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- 15910733293
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产品详细介绍
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
电话:010-51669912 56291930 15910733293
传真:010-51669912
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邮箱:sales@zoriver.cn
公司官网:http://www.zoriver.cn http://www.zoriver.com.cn
"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