Multi Gauge Controller MG12



The MG12 Multi Gauge Controller is a dual channel analogue gauge controller. It displays both measurement channels on a single, large display which is only 1U total height. Alternatively, it can display a single gauge with accompanying graphical data presentation. The first channel can operate any of the Oerlikon-Leybold range of gauges, TTR 90, TTR 90S, TTR 91,TTR91S, PTR 237. The second channel is extended to additionally operate ion gauge types ITR 100 and ITR 90. A unique feature of the MG12 is the availability of 4 interlocks, each of which can be separately programmed for each channel, including threshold levels and hysteresis. The measurement channels are immediately active upon power-up. When an IR 90 is connected, the emission control facility remains inactive. The operational status of all triggers and transmitter outputs are also displayed.

The unit is also fully software controlled and web-enabled so that it can be operated over any network, including the internet.

Only one communication interface can be chosen at time of order (please refer to table) but this can be easily changed in the future via simple rear panel plugin connection modules, without ever having to access the internals of the unit.


  • Any high and ultra high vacuum systems
  • Measurement of ultimate pressure (from atmosphere to UVH range)
  • Bakeable and non bakeable systems

Technical data

Supply voltage 90 - 230VAC, 50 - 60Hz
Compatible sensors CHAN1 TTR 90, TTR 90S, TTR91, TTR91S, PTR 237
Compatible sensors CHAN2 TTR 90, TTR 90S, TTR 91, TTR 91S CTR 90, CTR 91, ITR 90, ITR 100
Measurement range 1x10-11 mbar - 2x105 mbar
Accuracy Relative to voltage reading: ±1mV
Measurement units mbar, Pa, Torr, Micron
Measuring rate 0,05s
Display rate 0,25s
Relays output 4 x NO (normal open)
User Interface Large LCD display 2 x 16 characters Function keys.
Communication Interface* (option) RS232/485/422, USB, EtherNet/IP, Bluetooth
Dimensions [mm] 240 x 260 x 44
Weight, approx 3,5 kg
* Only one comms interface can be used at any one time and is chosen at time of order. However, this may be swapped/interchanged with any other comms interface at any future date via simple rear panel plug and play swap, without having to access the internals of the unit.