Dwyer产品 608系列微差压变送器美国德威尔压差表流量计差压计差压开关差压变送器

608系列微差压变送器
产品说明：
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。
• 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
产品规格：
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 to 1045 Ω maximum.
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.