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PT R25 131
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CMR 374, 1 hPa F.S., DN 16 ISO-KF
Order number: PT R25 131

  • Measurement range from 1 · 10-4 – 1.1 hPa
  • Minimal zero drift
  • Sensor in ceramic technology
  • No memory effects
  • Materials employed have identical temperature coefficients
  • Outstanding long-term and temperature stability
  • Additional protection against pollution by sensor shield
  • Calibration test report included in delivery
Ambient temperature 10-40 °C | 50-104 °F | 283-313 K
Bakeout temperature At the flange: 110 °C | At the flange: 230 °F | At the flange: 383 K
Bakeout temperature at the flange 110 °C | 230 °F | 383 K
Full scale 1 hPa | 0.75 Torr | 1 mbar
Input voltage(s) 14 – 30 V DC  
Materials in contact with media Ceramic (Al2O3 = 99.5 %)
Measuring method Capacitive
Measuring range 1 · 10-4 – 1.1E0 hPa
Nominal diameter DN 16 ISO-KF
Operating temperature ≤ 45 °C | ≤ 113 °F | ≤ 318 K
Output signal: Measuring range 1 – 9.8 V  
Output signal: Minimum load 10 kΩ
Pipe and flange Stainless steel
Precision: % of measurement 0.15 %
Pressure max. 2,000 hPa | 1,500 Torr | 2,000 mbar
Protection degree IP40
Resolution 0.003 % F.S.
Response time 30 ms
Supply: consumption max. ≤ 12 W
Temperature: Storage -40-65 °C | -40-149 °F | 233-338 K
Temperature effect: on range 0.01% of measured value/ °C
Temperature effect: on zero point 0.0025 % F.S./°C
Volume ≤ 4.2 cm³
Weight 900 g

Dimension-TIM-RS

File Type Language Date Filesize
Data sheet PDF EN 06-06-2023 ~ 372.1 KB
File Type Language Date Filesize
Operating instructions CMR 371/CMR 372/CMR 373/CMR 374/CMR 375 - Capacitance Gauge (BG5138BEN_B) PDF EN 07-16-2019 ~ 524.6 KB
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Pfeiffer Vacuum Inc.
24 Trafalgar Square
NH 03063-1988 Nashua
USA

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