- 产品品牌：
- 德维尔Dwyer
- 产品型号：
- H3
H3防爆压差开关
产品型号:H3
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
| 型号 | 压力腔材质 | 膜盒材质(Wetted) | 可调范围 | 开关(Switch) | 单价 | 备注 |
| 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 | 标准 | |
| H3A-2SL | Aluminum | Nitrile | 0.5-15 psid (0.3-1 bar) | SPDT Snap Action Switch, Rated 5 A @ 125/250 VAC, 30 VDC | 标准 | |
| H3A-3SL | Aluminum | Nitrile | 5-70 psid (.34-4.8 bar) | SPDT Snap Action Switch, Rated 5 A @ 125/250 VAC, 30 VDC | 标准 | |
| 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 | 标准 | |
| 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 | 标准 | |
| H3S-3SL | 316 SS | Viton® | 5-70 psid (.34-4.8 bar) | SPDT Snap Action Switch, Rated 5 A @ 125/250 VAC, 30 VDC | 标准 |
选型表
| 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 S |
Aluminum chamber with Nitrile diaphragm 316SS chamber with Viton® diaphragm | |||||
| 可调范围 | 1 2 3 4 |
Adjustable range 10-180" w.c. (2.48-44.78 kPa) Adjustable range 0.5-15 psid (0.03-1 bar) Adjustable range 5-70 psid (.34-4.8 bar) Adjustable range 10-200 psid (.7-13.8 bar) | |||||
| 开关(Switch) | S D |
SPDT snap action switch rated 5A @ 125/250VAC, 30 VDC DPDT snap action switch rated 5A @ 125/250VAC, 30 VDC | |||||
| 电气连接 | L T C |
18 AWG x 18 inch lead wires UL, CSA approved internal terminal block ATEX approved internal terminal block | |||||
| 可选项 | DRAIN MV VIT |
Housing with drain - allows condensate to be drained from inside enclosure (meets NEMA 3 instead of 4X) Gold contacts on snap switch for dry circuits rated 1A @ 125VAC, 1A resistive or 0.5A inductive @ 30VDC Viton® diaphragm option where not standard |
危险场所/全天候防护等级
| Model | UL | CSA |
Directive 94/9/EC ATEX Compliant |
| H3_-__C | --- | --- |
0344 |
| H3_-__L H3_-__T |
Cl. I, Gr. B, C & D Cl. II, Gr. E, F & G NEMA 4X |
Cl. I, Gr. B, C & D Cl. II, Gr. E, F & G NEMA 4X |
--- |
| H3_-__C-DR | --- | --- |
0344 II 2 G EEx d IIB -20°C≤ T amb ≤75°C T6 EC-Type Certificate No. KEMA 03ATEX 2584 |
| H3_-__L-DR |
Cl. I, Gr. B, C & D Cl. II, Gr. E, F & G NEMA 3 |
--- | --- |
详细资料:H3.pdf
