Pressure Ranges
50 – 0 - 50 mm water column
600 - 0 - 600 inch water column
In the Hirlekar Precision Model CZ 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.
Center Zero This gauge is designed with a center zero.
| Accuracy | ±2% of the FSD (Ascending) |
| Migration | Zero Migration from high to low port |
| Range | 50 – 0 - 50 mm H2O 600 – 0 – 600 inch H2O |
| First marking on scale | 20% 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 | Direct, front flange, 2” pipe & surface mounting |
| 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 | In-line, rear, bottom, bottom & vent, in-line & vent, in-line & bottom |
| 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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