品牌：dwyer
產品描述：
測量量程可低至0.1英寸水柱，F(xiàn)M認證，NEMA 4X防護

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，負壓的測量，輸出標準的兩線制4-20 MA信號。它采用了超薄的硅膠隔膜，可測量低到0.1英寸水柱的量程范圍，并且同時可承受高靜壓到100 Psig (6.89 Bar)。608變送器帶有FM認證的本安防爆證書，配合本安隔離柵可用于危險場合。它的不銹鋼的NEMA 4X防護的外殼用于各種工業(yè)場合。
應用：

• 實驗室風柜控制

• 潔凈室應用

• 流量測量與控制

• 過濾器監(jiān)測

• 爐膛抽風測量

• 過程控制
技術參數(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.