MAT281/271/25X Emission Regulator

we have developed a completely new emission regulator for gas isotope
mass spectrometers floating in 10kV max. It is initially set up by simple
commands sent via a RS-232- or CAN-Bus interface. All desired voltages
and currents are stored and the the unit recovers the preset values after
power-on. The filament current is slowly ramped up to maximize the filament
lifetime. Following parameters can be set indepedantly in 65536 steps:

• filament current (0-8A)
• filament current limit (0-8A)
• emission current (0-2000uA)
• electron collector voltage (0-200V)
• electron energy (0-200V)
• pusher voltage (+/-200V)
• electron lens (+/-200V)

All values are monitored via CAN-Bus on a 4.3" CFL backlit LCD-Display. The
regulator is operated on an optically isolated CAN-Bus. The display as well as
the RS-232 Interface are ground-related.

spectromat Massenspektrometer GmbH
Wiener Str. 3 • 28359 Bremen
Phone: ++49 421 414771 • Fax: ++49 421 414761