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测量量程可低至0.1英寸水柱，FM认证，NEMA 4X防护
608系列微差压变送器用于空气或其它兼容气体的压力，差压，负压的测量，输出标准的两线制4-20 mA信号。它采用了超薄的硅胶隔膜，可测量低到0.1英寸水柱的量程范围，并且同时可承受高静压到100 psig (6.89 bar)。608变送器带有FM认证的本安防爆证书，配合本安隔离栅可用于危险场合。它的不锈钢的NEMA 4X防护的外壳最适合用于各种工业场合。
应用及案例
• 实验室风柜控制
• 洁净室应用
• 流量测量与控制
• 过滤器监测
• 炉膛抽风测量
• 过程控制
产品特色
• High accuracy at low pressure ranges provides exceptional measurement for ensuring tight-control and minimizing costly out of specification conditions
• Intrinsically safe for use in the specified hazardous locations meets specifications where pressure transmission and safety cannot be compromised
• NEMA 4X rated enclosure provides protection in harsh environments permitting outdoor monitoring or in areas where dust and particulate matter exists
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.
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