3000MR/3000MRS系列 微差壓開關/表
微差壓表和高低限位控制的組合
3000MR 3000MRS 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的指針式差壓表結合到一起，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，壓力表讀數不受開關的影響，即使失電也能準確讀數。采用了固態技術大大減小了產品的體積和重量。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)的特別結構選項。
包括附件：安裝環，卡環，18" (45 cm)電纜，兩個3/16"軟管到1/8"NPT轉換接頭，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).
Weight: 1.8 Ib (816 g).
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.
Agency Approvals: CE.
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.
