Dwyer产品 1950G系列防爆型微差压开关美国德威尔压差表流量计差压计差压开关差压变送器

1950G系列防爆型微差压开关
产品说明：
防爆，全天候防护等级，可用于天然气
1950G系列防爆型微差压开关具有德威尔1950系列差压开关的所有最好性能，还可用于天然气的监测。它可以用于室外安装，并达到UL的防爆认证：Class I, Groups A, B, C, & D; Class II, Groups E, F, & G and Class III atmospheres, Directive 94/9/EC，还具备(ATEX) Compliant for CE ATEX II 2G Exd IIB+H T6, CSA & FM approved for Class I, Div. 1, Groups B, C, D; Class II, Div. 1, Groups E, F, G and Class III atmospheres IECEx Ex d IIB+H T6。它尺寸小，重量相当于常规防爆开关的一半。
打开铝制外壳的前盖板，很容易进行和单刀双掷继电器，电源进行接线。需要24 VDC, 120 或240 VAC电源，电路连接。开盖时，螺钉始终留在盖上，不会现场丢失。无需打开外壳就可以调整设定点。
产品规格:
Service: Air and compatible combustible gases.
Wetted Materials: Consult factory.
Temperature Limits: 0 to 140°F (-17 to 60°C). Note: Set point drift may occur with ambient temperature changes.
Pressure Limits: 45" w.c. (11.2 kPa) continuous; 10 psig (68.95 kPa) surge.
Enclosure Rating: NEMA 3 (IP54), NEMA 7 and 9.
Switch Type: 1 Form C relay (SPDT).
Electrical Rating: 10 A, 120/240 VAC, 28 VDC. Resistive 50 mA, 125 VDC.
Power Requirements: 24 VDC ±10%. 120 or 240 VAC ±10% optional.
Electrical Connections: Internal terminal block.
Process Connections: 1/8" female NPT.
Mounting Orientation: Diaphragm in vertical position. Consult factory for other position orientations.
Set Point Adjustment: Screw type on top of housing.
Weight: 2 lbs 15.7 oz (1.35 kg).
Agency Approvals: ATEX, CE, CSA, FM, IECEx, UL.