5.9 Warning and alarm indications
Notes: Refer to Section 6 for a full list of the warning and alarm messages and their meanings.
Unless you have changed the corresponding setpoints (see Section 5.3), nitrogen purge flow and
pressure warning conditions will occur if an iH80 system is operated for extended periods with
the inlet pressure close to atmospheric pressure.
If a warning or alarm condition exists:
•
The top line of the display on the Pump Display Terminal will change to 'WARNING' or
'ALARM', together with an error number.
•
The bottom line of the display will show the warning or alarm message or (for some errors)
will be blank.
•
The warning or alarm LED on the Pump Display Terminal will flash.
To acknowledge the warning or alarm, press the ENTER button. If the warning or alarm
condition has cleared, the warning or alarm LED will go off. If the warning or alarm
condition is still present:
•
The warning or alarm LED will stay on.
•
If the warning or alarm condition does not have an advisory message (see Section 6.17), the
display will then change to normal display: see Section 5.4.
•
If the warning or alarm condition has an advisory message (see Section 6.17), the display will
show two lines which describe a simple check which you can make to identify the cause of the
fault and to rectify the fault. When you have read the message, press the ENTER button again;
the display will then change to normal display: see Section 5.4.
5-8 iH Dry Pumping Systems
To Next Page
Loading...
