Pressure Ranges
In bar: 0.075 – 0 – 0.075
In bar: 4 – 0 – 4
In the Hirlekar Precision Model CZ 300 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 | 0.075 – 0 – 0.075 bar 4 – 0 – 4 bar |
| 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: 2.5, 3.5, 4.0, 4.5, 6.0 mm: 63, 80, 100, 115, 150 |
| Mounting | Direct, front flange, 2” pipe & surface mounting |
| Maximum working pressure | 100 bar / 1500 psi |
| Maximum process temperature | 80°C/ 175°F |
| Body material | Aluminum, Brass, SS 316 & Monel |
| 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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