MKS Instruments UK Ltd
Cirrus2 Hardware Manual – SP101017.100 June 2011
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2. Connections and Indicators
Front Panel
Along with the capillary inlet, the front panel incorporates a bang of six status indicators to assist in the operation of the
Cirrus2.
Power
The indicator is green when power is supplied to the Cirrus2 unit.
Turbo at Speed
The indicator is amber while the turbo molecular pump accelerates, changing to green when it has reached normal
operating speed.
The filament protect trip is interlocked to this signal to prevent operation of the filament before a suitable chamber
pressure has been obtained.
Capillary Heater
The indicator is amber when the capillary heating element is on.
System Heater
The indicator is amber when the heater temperature is set to 80degC “Heat”, and red when at the 180degC setting
“Bake”.
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