設定點范圍2.5KPa-13.8Bar, 耐壓到103Bar
用途：防爆設計，適用于工業精密測控
可調壓差范圍：2.44-44.78KPa,3.44-103KPa,34.4-482KPa,68.9-1379KPa
產品名稱: H3系列 氣液兩用防爆壓差開關
產品型號: H3
設定點范圍2.5KPa-13.8Bar, 耐壓到103Bar
用途：防爆設計，適用于工業精密測控
可調壓差范圍：2.44-44.78KPa,3.44-103KPa,34.4-482KPa,68.9-1379KPa
死區：可調范圍的5%
壓力腔材質：鋁，銅或不銹鋼可選
連接：1/8"NPT
zui大耐壓：1500PSIG
zui大溫度：105°C
輸出：SPDT/DPDT可選
重量：2Kg
尺寸：76.2X136.53mm
選型表：
| 型號 | 壓力腔材質 | 膜盒材質（Wetted） | 可調范圍 | 開關（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 |
| 舉例 | 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. |
| 結構 | H3 | | | | | | Series designator, weatherproof and explosion-proof |
| 壓力腔& 膜盒材質（Wetted） | | A | | | | | Aluminum chamber with Nitrile diaphragm |
| S | 316SS chamber with Viton® diaphragm |
| 可調范圍 | | | 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） |
| 開關（Switch） | | | | S | | | SPDT snap action switch rated 5A @ 125/250VAC, 30 VDC |
| D | DPDT snap action switch rated 5A @ 125/250VAC, 30 VDC |
| 電氣連接 | | | | | L | | 18 AWG x 18 inch lead wires |
| T | UL, CSA approved internal terminal block |
| C | ATEX approved internal terminal block |
| 可選項 | | | | | | 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 |
