Mid West Model 240系列隔爆差壓表帶限位開關和變送器
The Model 240 carries global certifications from CSA, UL, and ATEX. The diaphragm isolated DifferentialPressure Switch is CSA Certified to both the Canadian and U.S. Standards and U.L. Listed to the U.S.Standards. In addition, it is certified to the ATEX directive Ex d, IIB + H2 with an IP 65 rating.
Mid-West Instrument’s new Hazardous Locations “Delta P” switches are provided with a field wireableterminal strip. The terminal strip eliminates the need to add a costly explosion-proof junction box nearthe switch.  Multiple outputs are available ranging from low power reed switches to higher load switchingrelay outputs.
 
Features and Benefits
A competitively priced Indicating Differential Pressure Switch for use in measuring the pressure drop acrossfilters, strainers, separators, valves, and pumps in Hazardous Locations.
Total Separation of High and Low Pressures Sides
  #   Simple, Rugged, Compact Design
  #   Working Pressure 1500 PSIG (103 bar)
  #   Over-range Protection to Maximum Presssure
  #   Captive Cover Screws
  #   The Entire Assembly is Certified for Hazardous Locations
 
Certifications: 
  #   CSA Certified, UL Listed, Class I, Division 1, Groups B, C, D;
        Class II, Division 1, Groups E,F, & G.
  #   ATEX Certified, Ex d IIB + H2 Ex II 2GD IP65
 
Switch Options:
Type
SPST **
SPDT
SPDT
DPDT Relay
ELEC Spec.
A
A
A
B,C,D,E,F,G, H
Output Option Code
E (NO)
H
A
R
†Power
60 W
60 W
3W
N/A
Max. Current
3.0  Amps
1.0 Amps
0.25 Amps
10 Amps
Max. Voltage VAC/VDC
240
240
125
277 / 30
Setting (%F.S.)
15% to **
25% to **
15% to 90%
15% to **
Hysteresis (Max/Nom)
20% / 9% (F.S.)
25% / 18% (F.S.)
15% / 6% (F.S.)
20%/10% (F.S.)
Repeatability
1% F.S.
1% F.S.
1% F.S.
1% F.S.
NOTE: For Ranges Greater than 60 PSID Minimum Switch Adjustability = 25%
† Product of the Switching Voltage & Current Shall Not Exceed the Power Rating
** Available Normally Open Only
  #   Set Point Accuracy: 2%*
  #   Interface:  1/2” Conduit / Cable Entry with 16 Position Terminal Strip
  #   Enclosure:  NEMA 7 / Ex “d” (Flame-proof), IP65 Weatherproof rating
  #   Switch Adjust: Internal to the Enclosure
  #   Input Power: None. (For Reed switch Outputs) ; Required for Relay Output
 
Body:
  #   Working Pressure:  1500 PSIG (100 bar)
  #   Differential Over-range:  Same as Working Pressure
  #   Range: 0-20"; H2O (0-50 mbar) to 0-100 PSID (0-7 bar)
  #   High Side to Low side Isolation:  Isolated (Diaphragm Style)
  #   Process Connections: 1/4” FNPT End Connected (Standard)
  #   Materials:  AL, 316 / 316L  SS,
 
Indicator:
  #   Accuracy:  2%* 
  #   Dial Size:  4 1/2” Standard None (Switch Only)
 

 
 


量程范圍 : 0-700（kPa） ;
適用范圍 : 差壓,液位,流量 ;
外形尺寸 : 125（mm） ;
較*作壓力 : 10（Mpa） ;
精度等級 : 2.0% ;
型號 : 240 ;
** : Mid-West ;
加工定制 : 是 ;

成立于2004年的上海怡磬貿易有限公司,**從事儀器儀表及測試設備的貿易銷售和國外**產品的推廣工作。上海怡磬貿易有限公司以優惠的價格及快捷的進口渠道,在產品供貨方面給廣大用戶提供**的服務,并協助用戶產品選配、計算選型,能夠較大限度地為客戶降低采購成本,價格具有競爭優勢,公司備有**的技術工程師,提供技術資料，技術咨詢,對顧客提出的問題24小時答復處理。 為客戶提供";**";的產品,完善的技術支持和售后服務,是本公司的一貫宗旨。 上海怡磬貿易有限公司銷售范圍; 01) Fisher 控制閥,智能定位器,調壓器,氣動壓力溫度控制器,氣動執行器,氮封閥 02) Rosemount 壓力, 溫度變送器,渦街,電磁流量計,差壓孔板,阿牛巴流量計 03) Rosemount 雷達液位料位計,超聲波液位計,音叉液位開關 04) Asco,Joucomatic 電磁閥,比例閥,開關閥 05) Topworx 智能閥位回訊器,Go Switch 閥位和位置開關 06) Samson 控制閥,數字定位器,自力式減壓閥和溫控閥   07) Mid-West 隔爆差壓計帶限位開關,差壓變送器,低溫儲槽液位計 08) El-O-Matic, FieldQ, Bettis 角行程氣動單雙作用執行器 09) Ashcroft,Heise,Wika 不銹鋼壓力表,膜片密封,壓力,溫度開關,溫度表 10) Mobrey 浮球液位開關,投入式液位變送器,超聲波液位計,料位開關 11) Namco 行程開關,接近開關,檢測器 12) APM  3D物位計和附件 13) Ge Panametrics 超聲波液體和氣體流量計 14) Beta Calibrators 過程校驗儀,溫度壓力校驗儀 15) Mankenberg 自力式減壓閥,過壓閥,浮球閥和氮封閥 電話: 86-21-3255 6961
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