Delta Faucet DF-745 Manuel D’Utilisation

60                                                                           DF-745

User Interface

Figure 63: Signal Monitor Menu

The Signal Monitor depicts 18 system parameters in numerical order. Each parameter is 
unique for each system. In the event of a system error, these parameters can be used as a 
diagnostic tool. See page 47 for additional information on system errors.

Figure 64: Signal Monitor Screen

The pump capacity test can be used to determine the ultimate vacuum that the aspirator or 
pump is capable of pulling and as a result its’ capacity to pull sufficient sample through the 
analyzer. The test is automatic in nature, in that once started, the analyzer isolates the 
moisture cell by closing the upstream and downstream valves and then the vacuum is 
monitored for 20 seconds and is displayed on the screen. Any pressure lower than 115 Torr 
is considered acceptable. If the aspirator or pump is unable to pull 115 Torr, a failure is
indicated by the appearance of Figure 67 and the recommendation to rebuild the pump or 
check for leaks. At the end of the 20 second test, whether the aspirator or pump passes or 
fails, the user must hit Escape to return to the main display.