User Manual
- 3.4 - 
Components 
C:\RHS Computer Files\Instructions\RHS\GB\642-40\0012B-01.doc 1997.09.11 
RHS 900 
22)  Low-pressure gauge 
23) Automatic process switch/lamp (green): cuts in the automatic 
process and lights up when the connection is made. 
24)  Evacuation switch/lamp (green): cuts in the evacuation process 
and lights up when the connection is made. After completed 
evacuation, a vacuum test is carried out automatically. The vacuum 
lamps light up to indicate “OK” or “Fault”. 
25)  Evacuation timer:  Evacuation time can be set between 0 and 60 
minutes. 
26)  Reset/test switch/lamp (green): cuts in the test process and lights 
up when the connection is made. 
27)  Mains switch/lamp (white): on/off switch for mains supply to 
station; lights up when the connection is made. 
28)  Recovery switch/lamp (green): cuts in the recovery process and 
lights up when the connection is made. 










