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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