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3000SGT系列 Photohelic三合一差壓變送器/開關(guān)/表-德威爾Dwyer

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品牌: 德威爾Dwyer
單價: 面議
所在地: 上海
有效期至: 長期有效
最后更新: 2018-07-19 09:43
瀏覽次數(shù): 943
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3000SGT系列 Photohelic三合一差壓變送器/開關(guān)/表-德威爾Dwyer

3000SGT系列 Photohelic®三合一差壓變送器/開關(guān)/表組合了關(guān)鍵的控制功能于一體,便于安裝。它采用了Dwyer多年積攢的可靠耐用的低壓測量技術(shù),能夠測量空氣或其它兼容氣體的正壓,負(fù)壓或差壓,精度為2%。差壓表是獨(dú)立顯示,面板4英寸,即使掉電,不會影響差壓表的現(xiàn)場指示。

另外,兩個雙刀雙擲的開關(guān)可用于高低限位控制,額定值為10 A @ 28 VDC or 120/240 VAC,設(shè)定點(diǎn)的回差大約一個指針寬度-小于滿刻度的1%。正好保證方便控制,避免震蕩。自帶的保持線圈可以讓用戶把兩個開關(guān)變成一個可以自由調(diào)整回差的單個開關(guān),*適用于潔凈室,建筑物壓力控制,暖通空調(diào)系統(tǒng),空氣過濾器,液位等等控制系統(tǒng)?刹捎们懊姘迳系男o和紅色的設(shè)定點(diǎn)指針,在在量程的滿范圍內(nèi)調(diào)整設(shè)定點(diǎn)。

*后,3000SGT系列 Photohelic®包括有單獨(dú)的4-20mA兩線制輸出變送器,采用10-35VDC供電,在后部帶有零點(diǎn)和量程調(diào)節(jié)功能?蛇x擇A-700電源板直接連接100-240V交流電,輸出24-28V。此變送器*適合用于在變風(fēng)量調(diào)節(jié)系統(tǒng)中來控制風(fēng)機(jī),或調(diào)整風(fēng)門。將所有的控制和顯示功能合為一體,除了明顯的節(jié)約造價,減少安裝空間的好處外,它還將取壓管線由過去的三組或四組減少到一組,大大地節(jié)約了安裝材料和安裝時間.
 

GAGE SPECIFICATIONS
Service: Air and non-combustible, compatible gases.
Wetted Materials: Consult factory.
Accuracy: See model chart on catalog page.
Pressure Limits: See model chart on catalog page.
Temperature Limits: 20 to 120°F (-6.67 to 48.9°C).
Process Connections: 1/8" female NPT.
Size: 4" (101.6 mm) dial face, 5" (127 mm) O.D. x 8-1/4" (209.55 mm).
Weight: 3 lb. 14.5 oz (1.77 kg).

 

SWITCH SPECIFICATIONS
Switch Type: Each set point has 2 Form C relays (DPDT).
Repeatability: ±1% of full scale.
Electrical Rating: 10A @ 24 VDC or 120 VAC, 6A @ 240 VAC.
Electrical Connections: Screw terminals.
Power Requirements: 120 VAC, ±10%.
Mounting Orientation: Diaphragm in vertical position. Consult factory for other position orientations.
Set Point Adjustment: Adjustable knobs on face.

 

TRANSMITTER SPECIFICATIONS
Accuracy: See model chart on catalog page.
Temperature Limits: 20 to 120°F. (-6.67 to 48.9°C).
Pressure Limits: See model chart on catalog page.
Thermal Effects: ±0.025% F.S./°F (0.045% F.S./°C).
Power Requirements: 10.0 to 35 VDC (2-wire).
Output Signal: 4-20 mA DC.
Zero & Span Adjustments: Multi-turn potentiometers, internally accessible.
Response Time: 250 mSec.
Loop Resistance: 0 - 1250 ohms.
Current Consumption: 38 mA DC, maximum.
Electrical Connections: Terminal block.
Warm-up Time: 10 minutes.