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0731-84284278
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0731-84284278
美國 Meriam 1226X防爆型帶顯示波紋管差壓開關(guān)
名稱：壓力表
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簡介：美國 Meriam 1226X系列防爆型帶顯示波紋管差壓開關(guān)的詳細(xì)介紹 Bellows Gauges for Differential Pressure, Flow and Level Features 1020 1120 Accuracy...
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美國 Meriam 1226X系列防爆型帶顯示波紋管差壓開關(guān)的詳細(xì)介紹
Bellows Gauges for Differential Pressure, Flow and Level
Features
1020 & 1120 Accuracy
30” w.c. range 1.50% FS
50” w.c. thru 500 PSID range 0.75% FS
Option: 100” w.c. thru 50 PSID range 0.50% FS
1220 Accuracy
Before switch activation 0.75% FS
At switch activation point 2.00% FS
After switch activation 1.50% FS
Zero Elevation
100% of range (150 PSID maximum)
Suppression
15% of range with 270° pointer travel
Operating Temperature
-60°F to +200°F
Full Scale Displacement
30” w.c. thru 130” w.c. range .19 Cu. In.
135” w.c. thru 60 PSID range .12 Cu. In.
75 PSID thru 500 PSID range .06 Cu. In.
1220 Switch Type
Snap action SPDT
1220 Switch Setting Accuracy
1.00% FS
1220 Dead Band
1 switch (nominal) 7% FS
2 switch (nominal) 10% FS
1220 Switch Setting
Increasing -10 to 100% of differential or 10” of water whichever is greater
Decreasing - 5% or 5” of water whichever is greater
Between set points -15% of FS minimum
1220 Switch Rating
5 amps at 125V or 250V AC
3 amps inductive or 5 amps resistive at 30VDC
Mounting Dimensions
Model 1020 Request File No. 1020:420
Model 1123 Request File No. 1123:420
Model 1124 Request File No. 1124:420
Model 1126 Request File No. 1126:420
Model 1224 Request File No. 1224:420
Model 1226 Request File No. 1226:420
Model 1226X-1 Request File No. 1226X-1:420
Model 1226X-2 Request File No. 1226X-2:420
1226X Explosion-Proof Switch
Meriam’s 1226X Explosion-Proof Indicating Switch is CSA and U.L. listed, meeting N.E.C. requirements for Class I, Division I, Group D hazardous environments. Class I, Group D atmospheres include gasoline, hexane, naphtha, benzine, butane, propane, alcohol, acetone, benzol, lacquer, solvent vapors, and natural gas. The explosion-proof housing is made from a strong, light-weight aluminum alloy that is both non-rusting and non-sparking. A large glass window provides full viewing of the 6” indicator. Front of board, panel or pipe mounting can be supplied.
Ordering Specifications
To order any one of Meriam’s Bellows Gauges, custom made to your specifications, please contact your Meriam
sales representatives with the following information:
• Model Number
• Housing Material
• Safe Working Pressure
• Bellows Material
• Differential Range
• Type of Scale
(Linear or Sq. Rt.)
• Type of Mounting
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