Dual Sensor (Pirani and Piezo) Vacuum Sensors

HPM-2002-OBE Dual Sensor Vacuum Gauge

HPM-2002-OBE Dual Sensor Vacuum Gauge

The OBE is an electronics module which provides the user with a low-cost method of accurate vacuum measurement over a wide range of pressure. The OBE uses the same rugged HPM-2002S tube as the award-winning Model 2002®. The module contains all of the performance features of the Model 2002 dual sensor instrument in a compact configuration. The OBE electronics module is available with many different types of signal output options for the user.

OBE is ideal for applications that require accuracy without the expense of costly capacitance manometers and a wide measurement range without multiple gauges.

The OBE can be configured to provide one of several different output options. These include Dual 0-10 VDC, RS232, RS485, Dual 4-20 mA, or DeviceNet™. All output options, except DeviceNet™, include a 4-digit LED display. The display provides floating-point pressure readout which is easily visible from several meters.

The 0-10 VDC analog output version generates two outputs which are linear with pressure. The first output has a 1024 Torr full scale value; the second output has a 1000 mTorr full scale value.

A digital communication version provides either RS232 or RS485 output to the user’s PC. A simple set of commands allows the user to configure and read the OBE. The RS485 configuration is capable of communication up to 4000 feet with up to 31 addressable instruments on the same bus.


• Low-Cost Electronics Module
• Wide Dynamic Range (1×10-4 – 1000 Torr)
• Combined Sensors in a Single Tube
• Input Voltage (12-30 VDC)
• 15-pin High-Density D-sub Connector
• Bright 4-Digit (green) LED Display
• Optional Outputs
• Dual 0-10V
• RS232/485
• Dual 4-20 mA
• DeviceNet™


• Loadlock
• Plasma Coating
• OEM Equipment
• Wide Range Vacuum Controls
• Refrigeration