Features
The pressure transmitters of Type 525 are characterized by their compact and robust design and very high measurement accuracy. In addition to a wide variety of pressure and electrical connections, pressure ranges starting from 50 mbar full scale value can be implemented. The pressure transmitters are based on the ceramic technology developed by Huba Control, which has been successfully used millions of times for over 20 years.
• Very high measurement accuracy
• Excellent temperature behavior
• Low-pressure ranges possible from a full scale value of 50 mbar
• Compact and robust design
• Variety of pressure and electrical connection options
Specification
| Pressure range | |
| Relative | 0 ... 0.05 – 0.6 bar |
| Operating conditions | |
| Medium | Liquids; Gases |
| Medium temperature |
FPM -15 ... +85°C EPDM -25 ... +85°C NBR -20 ... +85°C |
| Ambient temperature | -25 ... +85°C |
| Storage temperature | -40 ... +85°C |
| Tolerable overload / rupture pressure | 2 bar |
| Tolerable negative pressure | -0.3 bar |
| Materials | |
| Plug accommodation | Polyarylamide 50% GF UL 94 V-0 |
| Pressure connection | Stainless steel 1.4404 / AISI 316L |
| Measuring element | Ceramic Al₂O₃ (99.6%) |
| Sealing material | FPM, EPDM, NBR |
| Electrical overview | |
| 2 wire | 4 ... 20 mA / 10 ... 30 VDC |
| 3 wire |
0 ... 5 V / 7 ... 33 VDC 0 ... 10 V / 12 ... 33 VDC Ratiometric 10 ... 90% / 5 VDC ±10% |
| Insulation voltage | 500 VDC |
| Current consumption |
< 23 mA (4 ... 20 mA) < 5 mA (voltage output) |
| Dynamic response | |
| Start-up time | < 200 ms |
| Response time | < 150 ms |
| Load cycle | < 100 Hz |
| Accuracy | |
| Characteristic line (25°C) |
± 0.35 % fs (fs < 100 mbar ±0.7 % fs) |
| Resolution | < 0.1 % fs |
| Long term stability | ± 0.25 % fs |
| Thermal characteristics | ± 0.07 % fs / 10K |
| Mounting error | |
| Horizontal mounting | +0.1 mbar |
| Vertical mounting (pressure port upward) | +0.2 mbar |
| Approvals | |
| EMC | CE acc. EN 61326-2-3 |
| Shock | IEC 68-2-27 50 g |
| Vibration | IEC 68-2-6 20 g |
| UL | ANSI/UL 61010-1 E325110 |
| Explosion protection (4 ... 20 mA) |
Ex II ½ G Ex ia IIC T4 Ga/Gb Ex II ½ D Ex ia IIIC T120°C Da/Db |
| Weight | ~ 120 g |
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Note : Design and specifications are subject to change without notice.
Note : Please make sure the product and the device which connect with RS-485 are on common ground, avoid damaged product.