ProSoft Technology PTQ-AFC - Manual (Page 152)

Meter Proving PTQ-AFC ♦ Modicon Quantum Platform
User Manual Liquid and Gas Flow Computer for Hydrocarbon Products
Page 152 of 259 ProSoft Technology, Inc.
June 23, 2011
8.2.2 Meter Proving Alarms
These alarms are transient and any one might exist only for a single scan, so
they might be missed when viewing this register directly. However, alarms are
also accumulated into the results database, so alarms that have occurred during
any run may be viewed by inspecting that database.
To Check for Alarms
1 Activate Meter Monitor dialog box
2
Select M
ETER
to be proved
3 Click on the [R EAD ] button
Note: Verify that the meter is not generating any alarms. Meter proving cannot proceed while any
alarm is displayed.
This is accomplished by providing P
ROCESS P ARAMETER
values that are within
the range of the Process Input Scaling Dialog box.
There are two sources of alarms:
1
From the meter, which occur whether or not a prove is in progress. These are
illustrated above.
2 From the prove, and there are 2 kinds:
a) Variation Limit Alarms
b) Prove Calculation Alarms
Note: Any alarm will always make a run not able to be selected.