608系列 微差壓變送器用于空氣或其它兼容氣體的壓力，差壓，負(fù)壓的測(cè)量，輸出標(biāo)準(zhǔn)的兩線制4-20 MA信號(hào)。它采用了超薄的硅膠隔膜，可測(cè)量低到0.1英寸水柱的量程范圍，并且同時(shí)可承受高靜壓到100 Psig (6.89 Bar)。608變送器帶有FM認(rèn)證的本安防爆證書(shū)，配合本安隔離柵可用于危險(xiǎn)場(chǎng)合。它的不銹鋼的NEMA 4X防護(hù)的外殼用于各種工業(yè)場(chǎng)合。
應(yīng)用：
• 實(shí)驗(yàn)室風(fēng)柜控制
• 潔凈室應(yīng)用
• 流量測(cè)量與控制
• 過(guò)濾器監(jiān)測(cè)
• 爐膛抽風(fēng)測(cè)量
• 過(guò)程控制
技術(shù)參數(shù)：
Service: Clean/Dry Air And Compatible Combustible Gases (See Agency Approvals For FM Ratings).
Wetted Materials: Consult Factory.
Accuracy: ±0.5% Or ±0.25% Full Scale.
Stability: ±0.5% F.S./Yr.
Pressure Limits: 100 Psig (6.89 Bar); 15 Psid (1.03 Bar).
Temperature Limits: -20 To 185°F (-28 To 85°C).
Compensated Temperature Range: 0 To 160°F (-18 To 71°C).
Thermal Effect: 0.5% Accuracy: ±0.02% F.S./°F; 0.25% Accuracy: ±0.01% F.S./°F.
Power Requirements: 12 To 36 VDC (2-Wire).
Output Signal: 4 To 20 MA DC.
Zero And Span Adjustments: Potentiometers For Zero And Span.
Response Time: 250 Ms.
Loop Resistance: DC: 0-1045 Ohms Maximum.
Current Consumption: 4-20 MA.
Electrical Connections: Screw Terminals: Two 1/2" Female NPT Conduit.
Process Connections: Two 1/4" Female NPT.
Enclosure Rating: NEMA 4X (IP65).
Mounting Orientation: Not Position Sensitive.
Weight: 2 Lb (0.9 Kg).
Agency Approvals: FM Approved Intrinsically Safe For Use In Class I, Div. 1, Groups A, B, C, D; Class II, Div. 1, Groups E, F, G; Class III, Div. 1 When Wire With Approved Intrinsically Safe Barrier. Entity Parameters: Vmax=36 VDC; Imax=250 MA; C=12 NF; L=0 MH.
