Azbil MVC10A, User Manual

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Setting parameters and operating the local data setting device Azbil Corporation
4-12 Model: MVC10A/10F - Multivariable Air Flow Meter
Executing the zero adjustment
MAINTENANCE MENU 6 <Zero Adjust>
Conduct the zero adjustment of flow meter output values.
Press the [Menu] key (M) twice to display the message “MAINTENANCE MENU.”
Press the key once to display the message “1 <TAG>.” Press the key five times
to display the message “6. <Zero Adjust>.”
Pressing the key causes the system to display the confirmation message “Are you
sure?”. Then, press the [Enter] key (E). When the message “Completely!” appears,
the adjustment is completed.
Note:
When the operation has to be interrupted, press the [Menu] key (E) to return the
display to a flow rate indication.
If an error occurs during execution, either of the following messages appears:
“Zero Over OK?”
The zero point deviates significantly. Check for installation status abnormality,
pipe clogging, stagnant flow, or any other malfunctions. Pressing the [Enter] key
(E) once again allows you to execute the zero adjustment in these conditions...
“Sensor Range Over”
This message appears when current value overshoots the sensor range. If it is
the case, please contact our sales representatives at our branch, sales office, or
our distributors from whom you have purchased this instrument, or our customer
services department of our head office.
Executing the auto ranging function
MAINTENANCE MENU 7 <Auto Range>
Conduct the automatic setting of maximum flow rate value.
Press the [Menu] key (M) twice to display the message “MAINTENANCE MENU.”
Press the key once to display the message “1 <TAG>.” Press the key six times to
display the message “7. <Auto Range>.” Press the key once to display the message
“Exe Auto Range.” Press the key once to display “Del Peak Value.” Pressing the
key for each message causes the system to display the prompt “Are you sure?.” Then,
press [Enter] key (E). When the message “OK!!,” appears, the setting is completed.
“Exe Auto Range”: The system executes this function.
“Del Peak Value”: Deletes the stored peak value (maximum flow rate value).
Note:
• When setting the maximum flow rate to an arbitrary value, refer to the next Item,
“Setting the maximum flow rate value.”
• For the details of the auto ranging function, refer to Chapter 4, Subsection 4-11,
“Explanation on some important functions,” Automatic ranging function.