wika pcs 紧凑型压力开关 ip65 ped证书 测量相对压力 差压和温度
compact pressure switch
ip 65 model pcs
compact pressure switch model pcs
applications
pressure monitoring and direct switching of electrical loads
for measuring points with limited space
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, achine building and general plant construction, water treatment, pharmaceutical industry
special features
ingress protection ip 65, nema 4
ambient temperature -40 ... +85 °c
1 switch point, spdt or dpdt with a high contact rating of up to 15 a / ac 220 v
setting ranges from 200 mbar, max. test pressure up to 250 bar
description
these high-quality pressure switches have been specifically developed for safety-critical applications with limited space.
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.
the gauge adapters are made of stainless steel, the diaphragm is, depending on the measuring range and the sensor code, made of inconel or coated with nbr or ptfe.
each switch family is available in ip 65, ex-ia or ex-d versions (ex-d see model pca, data sheet pv 33.31).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 as for plc applications, argon gas filled micro switches with gold-plated contacts can be selected as an option. for
two separate circuits the switches are also available in the version dpdt (double change-over contact).
by using a diaphragm with an antagonist spring, the modelpcs pressure switch is extremely robust and guaranteesoptimal operating characteristics.
switch points
the switch points can be set to your requirements, free-ofcharge.
please specify:
switch point, switching direction (e.g. switch point: 0.5 bar,falling)
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
if the pressure is rising, the switch point should be set between 35 mbar up to 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 connection 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)
dielectric strength
safety class i (en 61298-2: 1997-06)
mounting
direct or wall mounting
preferred connection location of the process connection
hould 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. 1.0 kg
options
other process connection, also with adapter
case made of stainless steel 316
electrical connection 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 5) 6) or tropicalised application 5)
version for applications to nace 5) 6)
version for ammonia applications 6)
oil and grease free version for oxygen applications
version to
gas ex-ia dust ex-iad gr. ii cat. 1 gd 6)
electrical characteristics: ui = 30 v
i = 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
5) not in connection with sensor code v
6) inert gas filled contacts required
approvals and certificates
sil 2 version 6)
gost-r certificate
test certificate *ca* (confirmation of the switchin
accuracy)
test report *cp* (3-time listing of the switch point, requires switch point specification)
material certificate 3.1 per en 10204
ordering information
model / case / sensor code / switch contacts with version / setting range / process connection / electrical connection / switch point / switching direction / options
example: pcs 2 m1 - 4/25 bar - 1/4"npt-f - 1/2"npt-f
欢迎致电咨询订购wika pcs 紧凑型压力开关 ip65 ped证书 测量相对压力 差压和温度d区100mbar
电话:010-51669912 56291930 15910733293
传真：010-51669912
qq：823377546 1491421115 2636968574
邮箱：sales@zoriver.cn
公司官网：http://www.zoriver.cn http://www.zoriver.com.cn
本产品的品牌是WIKA/威卡，型号是PCS，类型是电子压力开关，额定电压是220（V），额定电流是15（A），机械寿命是100（万次），Zui大工作压力是100bar（Pa），产品认证是PED证书，加工定制是是
