| echnical specifications | ||
| Digital outputs | CO: 1; Potential-free | |
| Permissible operating pressure | 7.5 kPa | |
| Ambient temperature, operation | -20-85 °C | |
| Mounting position | Diaphragm vertical, pressure connection pointing downward | |
| Digital output, switching voltage | AC 24-250 V; 24 V | |
| Digital output, switching current | 0.01-5 (3)A | |
| Measuring range, pressure | 20-300 Pa | |
| Pressure connection | Connecting branch∅ 6.2 mm | |
| Degree of protection | IP54 | |
| Dimensions (Ø x L) | 81 x 90 mm | |
| Data sheet | N1552 | |
| Warranty | 60 Months | |
Differential Pressure Switch QBM81-…for air and nonaggressive gases