PSG55x is a Pirani vacuum gauge that measures from low to high vacuum. The filament can be tungsten, nickel or ceramic coated for corrosive processes, and the sensor carries its own calibration data so it can be swapped directly.
| Filament | Tungsten (PSG550) / nickel (PSG552) / ceramic coated (PSG554) |
| Measuring Range | 5×10⁻⁵ … 1000 mbar (3.8×10⁻⁵ … 750 Torr) |
| Accuracy (1×10⁻³…100mbar) | ±15% of reading |
| Maximum Pressure (absolute) | 10 bar |
| Operating Temperature (in operation) | +10 … +50°C |
| Supply Voltage | +15 … +30 V (dc) |
| Output Signal | 0 … +10 V / 0 … +8.5 V / 0 … +5.529 V / 0 … +8.875 V (selectable) |
| Interface (digital) | RS232C (option: DeviceNet / Profibus DP / EtherCAT / RS485) |
| Flange Connection | DN 16 ISO-KF / DN 16 CF-F / DN 25 ISO-KF / 4·8 VCR female / 1/8" NPT / 7/16-20 UNF male |
| Protection Rating | IP 40 |
| Accuracy (additional ranges) | 5×10⁻⁴…1×10⁻³ mbar ±50%, 100…1000 mbar ±50% |
| Repeatability | ±2% (1×10⁻³…100 mbar) |
| Working Pressure (absolute) | ≤5 bar |
| Bakeout | Flange ≤80°C, long tube ≤250°C |
| Storage Temperature | -20…+65°C |
| Power Consumption | ≤2.5 W (without fieldbus) |
| Weight | 115…130 g (without fieldbus), 230…250 g (with fieldbus) |