3000MR/3000MRS系列 Photohelic 微差壓開關/表-德威爾Dwyer
3000MR 3000MRS Photohelic® 開關/表把高精度、高重復性能的差壓開關與大表盤便于讀數(shù)的指針式差壓表結(jié)合到一起,采用了可靠耐用的的Magnehelic®設計理念。可通過儀表面板的旋鈕設置壓力開關設定點,壓力表讀數(shù)不受開關的影響,即使失電也能準確讀數(shù)。采用了固態(tài)技術大大減小了產(chǎn)品的體積和重量。可在13/16″(122mm)安裝孔中被嵌入安裝或用帶有的附件進行表面安裝。3000MR型采用了鍍金觸頭開關,特別適用于小功率無源電路。對于開關動作頻繁的應用場合,可選擇帶單刀單擲(常開)固態(tài)開關的3000MRS。有高低位開關,帶18英寸(45cm)長的電纜用于電氣連接。
3000MR 3000MRS Photohelic® 差壓表的精度是±2%, 開關的重復精度是±1%,回差小于1%,比指針的寬度還窄。它可用于空氣或其它不可燃,無腐蝕的氣體,耐壓到25psig(1.725bar)。有耐壓35 psig(2.42bar)或耐壓80 psig (5.51bar)的特別結(jié)構(gòu)選項。
包括附件:安裝環(huán),卡環(huán),18" (45 cm)電纜,兩個3/16"軟管到1/8"NPT轉(zhuǎn)換接頭,2個1/8"NPT堵頭,4個6-32 x 1-1/4"盤裝用螺釘,3個6-32 x 5/16"表面安裝用螺釘。
GAGE SPECIFICATIONS
Service: Air and non-combustible, compatible gases.
Wetted Materials: Consult factory.
Accuracy: ±2% of FS (3000-0 ±3% of FS). (3000-00 ±4% of FS).
Pressure Limit: -20" Hg. to 25 psig (-0.677 bar to 1.72 bar). MP option: 35 psig (2.41 bar), HP option: 80 psig (5.52 bar).
Temperature Limits: 20 to 120°F (-6.67 to 48.9°C).
Process Connections: 1/8" female NPT (duplicated side and back).
Size: 4" (101.6 mm) dial face, 5" (127 mm) OD x 3-1/8" (79.38 mm).
SWITCH SPECIFICATIONS 3000MR
Switch Type: Each setpoint has 1 form C relays (SPDT).
Relay Contacts: (Resistive load) 1 form C rated 1.0A @ 30 VDC, 0.3A @ 110 VDC or 0.5A @ 125 VAC. Gold over clad silver - suitable for dry circuits.
Electrical Connections: 18" (46 cm) cable assembly with 8 conductors. Optional lengths to 100' (30.5 m).
Power Requirements: 24 VDC, regulated ±10%.
Mounting Orientation: Diaphragm in vertical position. Consult factory for other position orientations.
Set Point Adjustment: Adjustable knobs on face.
SWITCH SPECIFICATIONS 3000MRS
Switch Type: Each setpoint has a solid state relay.
Switching Voltage: 20-280 VAC (47-63 Hz).
Switching Current: 1.0 amp (AC) max., 0.01 mA (AC) min., (2) SPST NO.
Electrical Connections: 18" (46 cm) cable assembly with 6 conductors, optional lengths to 100' (30.5 m).
Power Requirements: 24 VDC, regulated ±10%.
Mounting Orientation: Diaphragm in vertical position. Consult factory for other position orientations.
Set Point Adjustment: Adjustable knobs on face.
Agency Approvals: CE.