Vacuum Instruments

Edwards can now offer active digital variants of our popular APG100, WRG and AIM gauges. These are similar to their active analogue bases but they now no longer need a separate controller. The Digital gauges simply need a supply voltage in the range of 15 to 48Vdc and then are serial comms enabled, so can be directly interrogated via a PC or PLC using either RS232 or RS485 communications.

The Edwards Barocel range covers a wide range of full scales and also comes in 4 distinct variants. The 7025m for applications where size and low cost are the driver, the 7025 for general accurate measurement control, and the 7045/7100 temperature controlled variants for tailoring performance to your environment.

As an export controlled item, we do not sell direct through our website, please contact your local Edwards representative for a quote.

The Edwards P3 handheld measuring system is the essential device for on-site service calls and on the spot flexible checking. Thanks to the easy use and integrated measurement data memory, pressures can be directly measured at different locations for monitoring the application. Owing to the advanced measuring range of the high-precision Piezo Pirani sensor, pressure measurement in the range of 1200 to 5x10-4 mbar can be displayed.

Edwards is proud to introduce our new range of passive gauge heads and controllers, selected specifically to complement the current Edwards range of active gauges and controllers. These passive gauges offer a solution for measuring pressure in a wide range of applications, from UHV systems to process industries or wherever the use of an active gauge is not possible e.g. Cyclotrons.

The Edwards TIC Instrument Controllers are compact rack or bench mounted controllers which have a large clear graphical display, intuitive user interface and serial communication. This allows full remote control and data logging functions via a new Windows™ based PC program. The controller supports and automatically recognizes up to six gauges from the Edwards range.

The Edwards Active Digital Controller (ADC) is a compact single gauge controller and display. It features a bright LED display and simple push-button controls. The ADC automatically recognizes compatible Edwards gauges, loads the appropriate look-up table and displays the pressure in commonly used vacuum units.
The ADC is available in standard and enhanced versions. The standard controller displays the pressure measured by a single active gauge. The enhanced controller supports two gauges, is equipped with two variable hysteresis set-points which are linked to 48V dc 1A changeover relays, and two 0-10V dc analog outputs. An RS232 interface is also available on the enhanced version.


The TAG (Turbo & Active Gauge) controller is a small, compact, low cost pumping system Controller, which is suitable for a wide range of vacuum applications. It is a 24V controller that is compatible with all Edwards DX and nEXT turbopumps. It contains no power source and thus you either need to supply your own power or buy the optional power supply. In addition to a turbopump it can control a backing pump, a vent valve, an air cooler and an Edwards active gauge.

Edwards offer a compact, Din rail mountable module to allow Profibus protocol communications with the TIC Turbo and Instrument Controllers, or directly with Edwards DX Turbo Pumps. This module allows manufacturers, laboratories and research establishments to take advantage of reduced cabling and network equipment costs.

The Edwards new APG200 series high performance compact Pirani Gauge is the perfect vacuum solution across a spectrum of applications due to its compact size, LED light ring, integrated set points and reduced costs. It is capable of measuring from atmosphere to 1e-4mbar/(7.5e-5torr) dependent on model.

The new Edwards Linear Convection Gauge has a wide measuring range from 1333 to 3 x 10^-4 mbar (1000 to 2.3 x 10^-4 Torr). The use of convection technology ensures, accuracy and sensitivity are maintained to the top of the range. The gauge is compact and may be mounted in any orientation, simplifying installation where space is limited. The gauge incorporates a setpoint and two LEDs, which indicate setpoint and gauge status. For reduced cost of ownership, the gauge is provided with a replaceable tube, in which calibration data is stored.

The Edwards Active Strain Gauge (ASG) is a rugged, corrosion resistant diaphragm gauge which provides accurate, gas independent measurement from 2000 mbar to 1 mbar. It can be used as a standalone transducer allowing OEMs and system builders to develop low cost, flexible solutions to their vacuum instrumentation needs. Alternatively, it can be connected to the Edwards Active Gauge Controller where it can be combined with many other sensor types to provide a complete vacuum instrument solution.

The Edwards Active Inverted Magnetron Gauges (AIM) combine the gauge-head and control electronics in one compact Active unit. These gauges have proved to be rugged and reliable in a wide range of applications ranging from scientific instruments to industrial processes.

The Wide Range Gauge (WRG) family offers the capability of single port pressure measurement in the range atmosphere to 10^-9 mbar, with a linear output. It’s a compact solution, halving the space and connectivity hardware requirement, which can be all important in many applications. The WRG has many novel features, including a patented striker, pushbutton calibration and set point controls and comprehensive diagnostics. The WRG is a cost-effective vacuum management solution when used either with a Edwards controller or directly integrated into the vacuum system controls.

The Edwards Active Ion Gauge (AIGX) is a compact active ion gauge with dual yttria coated iridium filaments, a wide measuring range from 5 x 10^-2 to 5 x 10^-10 Torr (6.6 x 10^-2 to 6.6 x 10^-10 mbar) and a 1 Volt/decade linear output. The Edwards AIGX incorporates all benefits of the industry standard active gauging concept, with integral electronics and replaceable tube. The gauge has a degas facility and includes features to protect and extend the life of the filaments. The AIGX benefits from extremely low emissions of charged particles, which makes it an excellent choice for processes where background noise is undesirable.

Edwards CG 16K capsule dial gauges are barometrically compensated dial gauges which cover the pressure ranges from atmosphere down to 1 mbar absolute. These robust gauges provide accurate, repeatable performance even at low pressures making them equally suited for non-corrosive process plant or for laboratory applications.

The IS16K vacuum interlock switch is designed to safeguard the operator by ensuring that electrical circuits in the vacuum chamber do not remain energized when the system is let up to atmosphere.

The Edwards VS16K Adjustable Vacuum Switch is a general purpose vacuum switch with adjustable set points and small switching differential. This diaphragm operated vacuum switch is high vacuum compatible and corrosion resistant with all wetted parts made from stainless steel.