DWYER H3系列气液两用防爆压差开关详细信息：
产品名称:  H3系列气液两用防爆压差开关
产品型号:  H3

设定点范围2.5KPa-13.8Bar, 耐压到103Bar

用途：防爆设计，适用于工业精密测控
可调压差范围：2.44-44.78KPa,3.44-103KPa,34.4-482KPa,68.9-1379KPa
死区：可调范围的5%
压力腔材质：铝，铜或不锈钢可选
连接：1/8"NPT
**耐压：1500PSIG
**温度：105°C
输出：SPDT/DPDT可选
重量：2Kg
尺寸：76.2X136.53mm

DWYER H3系列气液两用防爆压差开关

选型表：

型号 压力腔材质 膜盒材质(Wetted) 可调范围 开关(Switch) 
 H3A-1SL Aluminum Nitrile 10-180" w.c. (2.48-44.78 kPa) SPDT Snap Action Switch, Rated 5 A @ 125/250 VAC, 30 VDC
 H3A-2SL Aluminum Nitrile 0.5-15 psid (0.3-1 bar) SPDT Snap Action Switch, Rated 5 A @ 125/250 VAC, 30 VDC
 H3A-3SL Aluminum Nitrile 5-70 psid (.34-4.8 bar) SPDT Snap Action Switch, Rated 5 A @ 125/250 VAC, 30 VDC
 H3S-1SL 316 SS Viton® 10-180" w.c. (2.48-44.78 kPa) SPDT Snap Action Switch, Rated 5 A @ 125/250 VAC, 30 VDC
 H3S-2SL 316 SS Viton® 0.5-15 psid (0.3-1 bar) SPDT Snap Action Switch, Rated 5 A @ 125/250 VAC, 30 VDC
 H3S-3SL 316 SS Viton® 5-70 psid (.34-4.8 bar) SPDT Snap Action Switch, Rated 5 A @ 125/250 VAC, 30 VDC

举例 H3 S 2 S C MV H3S-2SC-MV Differential Pressure Control; 316SS pressure chamber and Viton® diaphragm, weatherproof and ATEX, SPDT snap action switch with gold contacts; fixed deadband; automatic reset; adjustable range 0.5-15 psid.
结构 H3 　 　 　 　 　 Series designator, weatherproof and explosion-proof
压力腔& 膜盒材质(Wetted) 　 A 　 　 　 　 Aluminum chamber with Nitrile diaphragm
S 316SS chamber with Viton® diaphragm
可调范围  　 　 1 　 　 　 Adjustable range 10-180" w.c. (2.48-44.78 kPa)
2 Adjustable range 0.5-15 psid (0.03-1 bar)
3 Adjustable range 5-70 psid (.34-4.8 bar)
4 Adjustable range 10-200 psid (.7-13.8 bar)
开关(Switch) 　 　 　 S 　 　 SPDT snap action switch rated 5A @ 125/250VAC, 30 VDC
D DPDT snap action switch rated 5A @ 125/250VAC, 30 VDC
电气连接 　 　 　 　 L 　 18 AWG x 18 inch lead wires
T UL, CSA approved internal terminal block
C ATEX approved internal terminal block
可选项 　 　 　 　 　 DRAIN Housing with drain - allows condensate to be drained from inside enclosure (meets NEMA 3 instead of 4X)
MV Gold contacts on snap switch for dry circuits rated 1A @ 125VAC, 1A resistive or 0.5A inductive @ 30VDC
VIT Viton® diaphragm option where not standard