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PT R21 251
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IKR 270, metal-sealed, DN 40 CF-F
Order number: PT R21 251

  • Flange size DN 40 CF-F
  • The maximum pressure applies to inert gases and temperatures below 55 °C
  • Cold cathode (inverted magnetron)
  • Rugged and dependable
  • Insensitive to air ingress
  • Corrosion resistant
Accuracy of measurement in range 1 30 % (1 · 10-9 hPa – 1 · 10-3 hPa)  
Ambient temperature 5-55 °C | 41-131 °F | 278-328 K
Anode Mo
Attribute Metal sealed
Bakeout temperature max.(electronics removed) ≤ 250 °C | ≤ 482 °F | ≤ 523 K
Connection flange DN 40 CF-F  
Feedthrough Al2O3
Flange, material Stainless steel
Input voltage(s) 15 – 30 V DC  
Measurement cable length 500 m
Measuring method Cold cathode
Measuring range 5 · 10-11 – 1 · 10-2 hPa
Output signal: Measuring range 1.96 – 8.6 V  
Output signal: Minimum load 10 kΩ
Power consumption max. 2 W
Pressure max. 1000 kPa
Repeatability in range 1 5 % (1 · 10-9 hPa – 1 · 10-3 hPa)  
Seal Silver
Temperature: Storage -40-65 °C | -40-149 °F | 233-338 K
Volume 20 cm³
Weight 0.95 kg | 2.09 lb

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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