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| Brand | Pfeiffer Vacuum |
|---|---|
| Origin | Germany |
| Model | TPR 270, TPR 271 |
| Measurement Principle | Thermal Conductivity (Pirani) |
| Measured Medium | Gases |
| Range | 1×10⁻⁴ to 1000 hPa (TPR 270) |
| Accuracy | ±10 % to ±30 % of reading |
| Repeatability | ±2 % |
| Operating Temperature | 5 to 60 °C |
| Bakeout Temperature | Up to 80 °C (standard), up to 250 °C (with optional high-temp flange variants) |
| Output Signal | TPR 270: 1.5–8.5 V |
| TPR 271 | 2.2–8.5 V |
| Filament Material | TPR 270: Tungsten |
| TPR 271 | Platinum or Rhodium |
| Flange Options | DN 16 ISO-KF, DN 16 CF-F, 1/8" NPT, 8-VCR |
| Brand | Pfeiffer Vacuum |
|---|---|
| Origin | Germany |
| Model | PBR 360, IMR 265 |
| Measurement Range | 5×10⁻¹⁰ to 1000 hPa (PBR 360) |
| Operating Temperature | 5–60 °C (PBR 360), 0–50 °C (IMR 265) |
| Bakeout Temperature | 180 °C (PBR 360), 150 °C (IMR 265) |
| Accuracy | ±10–30 % (PBR 360), ±15 % (IMR 265, 1×10⁻⁵–1 hPa) |
| Repeatability | ±2–5 % (PBR 360), ±2 % (IMR 265, 1×10⁻⁵–1×10⁻¹ hPa) |
| Output Signal | 0.774–10 V |
| Interface | DN 25/40 ISO-KF, DN 16/40 CF |
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