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
最大耐压：1500PSIG
最大温度：105°C
输出：SPDT/DPDT可选
重量：2Kg
尺寸：76.2X136.53mm
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 | |
