Ecotech Acoem Serinus 30 - Valve Menu; Figure 59 - Valve Menu Screen

Serinus® 30 User Manual 3.3
Page 74
3.4.17 Valve Menu
Main Menu → Service Menu → Diagnostics Menu → Valve Menu
The Valve Menu allows the user to observe the instrument controlled switching of the valves. If the
valve is On it means the valve is energised. When a three-way valve is in the On state it will now be in
the NC (normally closed) position as shown in the plumbing schematic. When the valve sequencing is
disabled the user has the ability to turn the valve Off and On manually. It is recommended that the
valve menu be used by a trained technician following the plumbing schematic (refer to Section 9.5).
Note: When interpreting the information below regarding the flow path through the valve note
that (NC = Normally Closed), (NO = Normally Open) and (C = Common).
Figure 59 – Valve Menu Screen
Valve Sequencing
When Enabled the valves will turn ON and OFF under the
instruments control (even if the user has manually turned OFF or
ON a valve).
When Disabled the valves will change only in response to a user’s
action.
Sample/Cal
Indicates if the Sample/Cal valve on the Calibration Valve
Manifold is OFF or ON. This will determine the port the instrument
draws its sample from.
OFF = Flow from NO to C (drawing sample from the Sample Port).
ON = Flow from NC to C (drawing sample from the Calibration
Port).
Internal Zero/Cal
Indicates if the Internal Zero/Cal valve on the Calibration Valve
Manifold is OFF or ON. This will determine the port the instrument
draws its sample from, when selecting Cal. Mode → Zero.
OFF = Flow from NO to C (drawing sample from the BGnd Air Port).
ON = Flow from NC to C (drawing sample from the Calibration
Port).
Pressurised Zero (OPT)
[Optional]
Indicates if the optional pressurised zero port valve is OFF or ON
(refer to Section 8.6).
Pressurised Span (OPT)
[Optional]
Indicates if the optional pressurised span port valve is OFF or ON
(refer to Section 8.6).