MKS HPS® Series 909AR Digital and Analog Hot Cathode Transducer, KF-40, RS-232 PN 909AR-51The HPS® hot cathode sensor is Bayard-Alpert style, which utilizes a fine wire collector located at the center of a grid. Due to its small area, few x-rays hit the collector; therefore, the gauge can measure very low pressures. The 909AR transducer includes two yttria-coated iridium filaments for reduced downtime. Yttria-coated iridium is resistant to damage caused by high oxygen partial pressures and exposure to atmosphere. The tube sensor operates at lower temperatures, giving a lower chemical reaction rate and minimizing thermal interference. The sensor includes a screen to shield it from large particles. The Series 909AR includes RS232 or RS485 digital communication as a standard feature. Digital communication allows for all adjustments and monitoring to be delivered real-time, via a host computer. For additional process control, the 909AR has a relay set point. The set point pressure, hysteresis and direction can all be adjusted and monitored via the digital port. The Series 909AR also features analog controls and analog output with 0 to 10 volts semilogarithmic output, 1 volt per decade for simplified system integration. Customers requiring both a power supply and display can use the 909AR with the PDR900 Series Controller sold on this website. For Complete Specs and Operation Information See AVAILABLE DOWNLOADS Below.Specifications and prices are subject to change without notice. HPS® and MicroPirani™ are Registered Trademarks of MKS Instruments, Inc.Options, (PN) Part Number and Pricing : MKS HPS® Series 909AR Digital and Analog Hot Cathode TransducerCF 1.33, RS-232, PN 909AR-11, 2009 Price $1221CF 1.33, RS-485, PN 909AR-12, 2009 Price $1221CF 2.75, RS-232, PN 909AR-21, 2009 Price $1234CF 2.75, RS-485, PN 909AR-22, 2009 Price $1234KF 16, RS-232, PN 909AR-31, 2009 Price $1202KF 16, RS-485, PN 909AR-32, 2009 Price $1202KF 25, RS-232, PN 909AR-41, 2009 Price $1214KF 25, RS-485, PN 909AR-42, 2009 Price $1214KF 40, RS-232, PN 909AR-51, 2009 Price $1221KF 40, RS-485, PN 909AR-52, 2009 Price $1221All Prices subject to change without notice.

MKS PDR900 Vacuum Gauge Controller for Series 900 Transducers The MKS The PDR900 power supply and readout unit is a stand alone, single channel controller for use with the Series 900 digital vacuum transducers. The instrument sets new standards for vacuum gauge controllers and can be used as a stand-alone power supply readout unit or as a tool for configuration, calibration and diagnostics of system integrated transducers in OEM applications. The PDR900 controller is the ideal solution for vacuum measurement, configuration of digital transducers and advanced system diagnostics. The controller features an easy to use menu-driven user interface, which guides the user through setup and configuration of remote transducer parameters. The readout unit communicates digitally with the transducer which eliminates analog measurement noise coupling via transducer cables. The unit automatically detects the 900 series transducer types, and can be used with both RS232 and RS485 transducers (Not compatible with 909/909A or 903 analog transducers). For Complete Specs and Operation Information See AVAILABLE DOWNLOADS Below.