Pressure Ranges
In mm water column: 0-25 to 0-600
In inch water column: 0-1 to 0-25
In the Hirlekar Precision Model EX-400 DGC, the movement of the diaphragm is converted into appropriate calibrated rotary movement of the pointer through a magnetic connection. This type of diaphragm model is used in applications where no migration of the media from high pressure side (HP) to low pressure side (LP) is permitted. The explosion proof box manufactured by Akron (USA) is ATEX approved.
| Accuracy | ±2% of the FSD (Ascending) |
| Migration | Zero Migration from high to low port |
| Range | 0-25 to 0-600 mm H2O 0-1 to 0-25 inch H2O |
| First marking on scale | 15% of the FSD |
| Sensing element | Diaphragm |
| Wetted Parts | Diaphragm, body material, SS 302 spring & ceramic magnet |
| Case Material | Stainless steel (SS 304) |
| Dial size | Inch: 3.5, 4.0, 4.5, 6.0 mm: 80, 100, 115, 150 |
| Mounting | As per the explosion proof box drawings |
| Maximum working pressure | 35 bar / 500 psi |
| Maximum process temperature | 80°C/ 175°F |
| Body material | Aluminum & SS 316 |
| Seals | Buna-N, Viton & EPDM |
| Window | Standard: Float glass Optional: Toughened glass, acrylic & safety glass |
| Connection | Standard: ¼” NPT(F) Optional: ¼” BSP (F) with adaptor |
| Porting | Bottom (right side) & back |
| Over range protection | Up to the max. working pressure from high side only. |
| Protection for gauge & switch | IP 65 / NEMA-4 |
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