Technical Data IONIVAC IM 540 Number of measurement channels 3 Bayard-Alpert / Extractor Channel 1 or 2 THERMOVAC / CERAVAC Channel 3 and 4 Display range mbar (Torr) 1 x 10-12 to 1100 (0.75 x 10-12 to 825) Display range Extractor mbar (Torr) 1 x 10-12 to 1 x 10-4 (0.75 x 10-12 to 0.75 x 10-4) Display range Bayard-Alpert mbar (Torr) 1 x 10-11 to 1 x 10-2 (0.75 x 10-11 to 0.75 x 10-2) Measurement range switching automatic or decade pre-select Units of measurement (selectable) mbar, Torr, Pa, Micron Measurement uncertainty % ± 10 of the value displayed Trend indication bargraph Measurement value display rate 1 x 10-10 to 1 x 10-2 mbar, 5 s-1 1 x 10-12 to 1 x 10-10 mbar, 0.5 s-1 Emission current Extractor sensor mA 1.6 Bayard-Alpert sensor mA 0.1 to 10; automatic control Emission current shutdown at p > 1 x 10-2 mbar, broken cathode, short-circuit, interruption of the electric circuit Bake out power Extractor / Bayard-Alpert W 20 / 40 Sensor supply, potential for anode Extractor / Bayard-Alpert: 220 V, cathode Extractor / Bayard-Alpert: 100 V/80 V, Reflector Extractor: 205 V Sensor connections Bayard-Alpert and Extractor - single operation is possible 2 x Bayard-Alpert or Extractor (redundant operation) Measurement system detection automatically Measurement system switchover automatically, pressure dependent, error dependent Chart recorder outputs for logarithmic 0 to 10 V (1 V / dec.) or Extractor/Bayard-Alpert (Ra ≥2.5 kΩ) linear 0 to 10 Volt, error indication U > 10.5 V Interface (standard / optional) RS 232 C / Profibus Switching thresholds (single operation or interval) 2 with floating changeover contact Mains connection V / Hz 90 - 264 / 50/60 Storage temperature range °C -40 to +60 Nominal temperature range °C +5 to +50 Dimensions of the benchtop instrument (W x H x D) mm 213 x 128.5 x 250 Weight, approx. kg (lbs) 3.0 (6.62) |