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PT R26 500
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IMR 265, high-pressure hot cathode, DN 25 ISO-KF
Order number: PT R26 500

  • Flange size DN 25 ISO-KF
  • The maximum pressure applies to inert gases and temperatures below 55 °C
  • Two gauge heads (Pirani and hot cathode) in a single case
  • High measurement accuracy
  • Automatic cathode protection
  • Corrosion resistant
Accuracy of measurement in range 1 15 % (1 · 10-5 hPa – 1 hPa)  
Ambient temperature 0-50 °C | 32-122 °F | 273-323 K
Bakeout temperature max.(electronics removed) 150 °C | 302 °F | 423 K
Connection flange DN 25 ISO-KF  
Filament Iridium coated with Y2O3
Filament holder Mo
Pt
Flange, material Stainless steel
Input voltage(s) 20 – 30 V DC  
Insulator Glass
Materials in contact with media Stainless steel
Measurement cable length 100 m
Measuring method Hot cathode process
Measuring range 2 · 10-6 – 1 · 103 hPa
Output signal: Measuring range hot cathode 1.5 – 7.5 V
Output signal: Measuring range Pirani 8.5 – 9.75 V
Output signal: Minimum load 10 kΩ
Pirani measurement element Copper
Tungsten
Power consumption max. 16 W
Pressure max. 5,000 hPa | 3,750 Torr | 5,000 mbar
Repeatability in range 1 2 % (1 · 10-5 hPa – 1 · 10-1 hPa)  
Repeatability in range 2 30 % (1 · 10-1 hPa – 100 hPa)  
Temperature: Storage -20-70 °C | -4-158 °F | 253-343 K
Volume 24 cm³
Weight 285 g

Dimension-TIM-RS

Your local contact
Pfeiffer Vacuum Inc.
24 Trafalgar Square
NH 03063-1988 Nashua
USA

+1 (800) 248-8254
+1 (888) 658-7983
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