Absolute Pressure 1000 to 5 x 10-9 mbar BEJSJaa mo-10 VOverview VSM vacuum transducer ■ Excellent ignition behavior ■ Low stray magnetic field ■ Wide range combination sensor Pirani / cold cathode ■ Automatic control of the cold cathode by the Pirani, switch-on of cold cathode at low pressure increases lifetime, insensitive against inrush of air Overview Smartline vacuum transducers ■ Digital RS485 interfaces plus 0-10 V output signal, EtherCAT or PROFINET, Bluetooth adapter SLKBT for wireless communication ■ PROFINET transducers support MRP ■ Exchangeable sensor heads with stored calibration data ■ Large LCD display (exc. EtherCAT, PROFINET) ■ Readjustment of zero and atmosphere by pushbutton or interface ■ LEDs for device status and switch points ■ Two independent, potentialfree relay switch points (exc. EtherCAT, PROFINET) ■ 0-10 V output signal can be scaled according to the required output characteristics. Exchange of existing vacuum gauges easily, independent of the manufacturer, without programming effort ■ Intelligent sensors for simplified integration according to Industry 4.0 standards ■ Metal sealed stainless steel sensor cell, suitable for UHV (He leackage rate <5e-10 mbar l / s) ■ Expansion with 2 channel controller VD12 or 4 channel controller VD14 possible ■ VacuGraph™ Windows software for visualisation, analysis and storage of measuring data

Technical Data Measurement Principle Heat conduction Pirani / Cold cathode (inv. magnetron), dep. on gas type Measurement Range 1000 - 5e-9 mbar (750-5e-9 Torr) Max. Overload 10 bar abs. | optional: 16 bar abs. (with CERT31P) Accuracy 1000 - 10 mbar: Approx. 30 % f. r., 10 - 2e-3 mbar: 10 % f. r., Repeatability 10 - 1e-2 mbar: Approx. 2 % f.r., 1e-2-1e-8 mbar: Approx. 7 % f.r. Materials With Vac. Contact Stainl. steel 1.4307, tungsten, nickel, glass, molybdenum, Al2O3 ceramic Reaction time 50 ms (switch-on cold cathode < 2s) Operating Temperature +5...+60°C (Profinet +5...+50°C) Bake Out Temperature...

nsducer Pirani / Cold Cathode1 0-9 mbar Model designations ■ VSM77DL DN 25 ISO-KF, 0-10 V and RS485, with LCD display ■ VSM78DL DN 40 ISO-KF, 0-10 V and RS485, with LCD display VD1277P: Set including a 2 channel controller VD12, VSM77D, measuring cable 2 m ■ CERT31P: overpressure stability 16 bar, incl. testing certificate 3.1 ■ Replacement sensor heads: B_VSM77A, B_VSM78A, B_VSM79A ■ SLCASE Smartline protective plastic case , SLN4 plug-in power supply, SLKUSB interface converter RS485-USB, VGR VacuGraph software lite version Further accessories as well as detailed information about our product...