Technical Data IONIVAC Transmitter ITR 200 S Display range mbar (Torr) 5 x 10-10 to 1000 (3.75 x 10-10 to 750) Measurement uncertainty, 10-8 - 10-2 mbar 15% of the meas. value Reproducibility, 10-8 - 10-2 mbar 5% of the meas. value Principles of measurement Hot cathode ionization according to Bayard-Alpert combined with thermal conductivity according to Pirani Degas Electron bombardment 3 minutes, max. Supply voltage 20 to 28 V DC, typ. 24 V DC Power consumption, max. W 16 Storage / nominal temperature range °C -20 to +70 / 0 to +50 Protection class IP 30 Weight, approx. ITR 90, DN 25 KF kg (lbs) 0.285 (0.64) ITR 90, DN 40 CF kg (lbs) 0.550 (1.24) Sensor Fully sealed, exchangeable Bake out temperature, max. °C 150 1) Dead volume, max. cm3 24 at DN 25 KF 34 at DN 40 CF Materials in contact with the medium Cu, W, Glas, NiFe, Mo, stainless steel, Aluminum, Iridium, Yttrium, NiCr, Over-pressure rating (abs.) bar 2 Signal output (Ra ≥10 kΩ) Measurement signal 0 - 10 V, 0.774 - 10 V, 0.75 V pro decade Error signal < 0,5 V Interface (standard / optional) RS 232 C / Profibus or DeviceNet Switching function Standard 1 normally open contact Profibus or DeviceNet 2 normally open contacts Electrical connection 15 way Sub-D male connector / pin contacts Cable length, max. m 100 / 30 at RS 232 C |