Active Inverted Magnetron

Edwards Active Inverted Magnetron

Edwards nAIM series, active Inverted Magnetron vacuum gauges combine the gaugehead and controller in one compact active unit. These are new digital versions of gauges that have proved to be rugged and reliable in a wide range of applications ranging from scientific instruments to industrial processes.

The nAIM gauges feature compact size for easy installation, a serial output and a replaceable sensor tube. It is anticipated that the digital gauges will be compatible with the next generation of Edwards instrument and active gauge controllers and displays. They are also CSA and C/US approved as well as fully RoHS compliant due to their lead-free construction.

Wide-range supply voltage allows operation from 15 to 48V d.c

Gauge naming allows user to store gauge identification data

Rapid tube replacement without pre-calibration

Unique striker design ensures rapid striking even at high vacuum or in contaminating conditions

RS485, 9600baud, 8bits, 1 start bit, 1 stop bit M

Features and benefits

• Adjustable open collector set-point output for straightforward process control and interlocking

• Low external magnetic field version (L) for sensitive analytical instruments (patented)


• Serial communications based on a simple ASCII, low latency, query and command protocol that can operated in a point to point or multidrop system with minimum overhead

Technical Data

Pressure range


Max overpressure

Temperature range Operating

Temperature range Storage






Edwards nAIM


10-2 to 10-9

Typically +/- 30%

10 bar absolute

5 to 60

0 to 70


Spectroscopy magazine