Pipeline Oscillation Check (At Normal Flow) - Oval ALTI mass CA00A Instructions Manual

9.6.5 Pipeline oscillation check (at normal flow)

This check diagnoses your flow measurement installation for condition while allowing the fluid flow －
whether it is free from external disturbances and noises resulting from pipeline vibration or other factors.
Upon completion of the check, diagnostic results will be indicated and you will be prompted to follow the
instructions given.
During the process of diagnosis, analog output and pulse output operations are suspended.
Click "SEL1".
Click "SEL3".
Stable flow
★
Not so stable flow
★
Unstable flow
★
(1) Bring up the item of function you want to use.
Firstly, proceed key operation to show Installation (pipeline vibration check) screen.
(For the procedure to view individual items, see 9.2.2 thru 9.2.7 Transition chart.)
When the cursor is placed over pipeline vibration check (Dynamic), click "SEL1" to
bring up pipeline vibration check (Dynamic) start screen.
(2) Decide whether to activate the function or not.
If you want to run pipeline vibration check (Dynamic), settle down the flow to a
steady state and then click "SEL3" to go to the next screen.
To exit the check process without running a check, click "ENT" and then click
"SEL3". The window returns to the menu select screen.
Click "ENT".
Click "ENT".
(3) Description of probe check (Dynamic) function
Run pipeline vibration check (Dynamic) screen appears and countdown
begins.
(The check lasts in 30 seconds, approx.)
(During the check, GRN LED blinks on and off.)
(4) Diagnostic results
① Stable flow
Stable flow signals. Satisfactory condition for measurement. Use the meter in
this state.
To end pipeline oscillation check, click "SEL3". Operation is brought to an end
and the window returns to initial menu select screen.
Click "SEL3".
② Not so stable flow
Flow signal fluctuates.
To stabilize flow signal fluctuation, we suggest to select a larger damping factor
for the fluid flow.
To end pipeline oscillation check process, click "SEL3". Operation is brought to
an end and the window returns to the initial menu select screen.
Click "SEL3".
③ Unstable flow
Flow signal fluctuates excessively; Inaccurate measurement is a possibility.
We suggest to inspect the pipeline once for condition (zero flow). (See 9.6.4
Pipeline vibration check (zero flow).
To stabilize flow signal fluctuation, we suggest to select a larger damping factor
of flow.
To end pipeline oscillation check process, click "SEL3". Operation is brought to
an end and the window returns to the initial menu select screen.
Click "SEL3".
Click "SEL3".
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