Vacuum Transducer, MicroPirani-Absolute Piezo, Display, 0.125 in. NPT, RS232_1183305
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Vacuum Transducer, MicroPirani-Absolute Piezo, Display, 0.125 in. NPT, RS232

Absolute Measurement Range1.0 x 10-5 to 1500 Torr
Digital CommunicationRS232
TypeVacuum Transducer
SensorMicroPirani (MEMS Thermal Conductivity), Piezo absolute (MEMS diaphragm)
DisplayTouch-screen Display
Seal MaterialViton
EnclosureStandard
Electrical Connector15-pin, High Density, D-sub male
InterfaceRS232/Analog
Relays3
Fitting Type0.125 in. NPT male
Installation OrientationAny
Set Point Range5.0 x 10-4 - 1500 Torr, Absolute
Calibration GasAir, Argon, Helium, Nitrogen, H2, H2O vapor, CO2, Xenon, Neon, Gas independent above 11 Torr
Operating Temperature0 - 40°C
Maximum Bakeout Temperature85°C
Exposed MaterialsSilicon, SiO2, Si3N4, gold, low outgassing epoxy resin, 304 stainless steel, Viton
ComplianceCE
910 DualTrans™ MicroPirani™/Absolute Piezo dimensional drawing
910 DualTrans™ MicroPirani™/Absolute Piezo data sheet
MKS Vacuum Gauge, Controller, & Module product overview
Overview

The 910-31034 DualTrans™ MicroPirani™/Absolute Piezo Vacuum Transducer with display is designed specifically for wide-range pressure measurement applications and features a 1/8 inch NPT fitting. The combined output provides significantly higher accuracy, stability, repeatability and a faster response time than conventional thermal conductivity gauges. The 910 combines two pressure measurement technologies to provide superior performance and functionality. The 910 provides gas independent absolute pressure measurement from 11 to 1500 Torr with increased accuracy over thermal conductivity sensors. Unlike traditional Pirani gauges, the sensor element in the MicroPirani is made of a one millimeter square silicon chip, allowing the measurements to be made in a very small volume. As a result of the MicroPirani technology, the 910 can read pressures down to 10-5 Torr, two decades below a standard Pirani sensor. The sensor design minimizes the effects of convection, subsequently the 910 can be mounted in any orientation without compromising accuracy. The Piezo is an absolute pressure sensor, providing a direct pressure reading, allowing the measurement to be gas independent. The Piezo sensor measures from less than 1 Torr to 1500 Torr. The 910 has RS232 digital communication interface for setup of transducer parameters and to provide real time pressure measurement. The 910 also has an analog pressure output of 1VDC/decade that can be interfaced to external analog equipment for pressure readout or control. Other analog outputs and curves can be selected via the digital user interface. The 910 has three mechanical relays which can be used for process control, for example interlocking isolation valves and vacuum pumps. Each set point can be assigned either to the piezo measurement or the combined absolute MicroPirani/Piezo measurement. The 910 compact design significantly reduces the amount of space occupied by a vacuum gauge. This is particularly appealing to system designers and allows for a more compact vacuum system.

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