Azbil Corporation
Operation and shut down of this instrument
Model: MVC10A/10F - Multivariable Air Flow Meter 3-3
3-2:
Preparatory operation before measurement
Introduction
After activating this instrument, be sure to make the zero adjustment. Conduct the
zero adjustment from the local data setting device.
Method for zero adjustment
Introduction
Conduct the adjustment so that the value of instantaneous flow rate reaches zero.
Note:
•
Zero adjustment is a critical process for assuring exact measurement of flow rate.
When starting up and operating the instrument for the first time, carefully conduct
this operation.
•
Before conducting the zero adjustment, ensure that the detector is securely
provided with Class D grounding and the fluid to be measured is still.
For the details of zero adjustment, refer to the Item “Zero adjustment” under
Subsection 4-8 “Initial setting.”
Step 1: Press the [Menu] key (M) in the display area twice. Then, the title
“MAINTENANCE MENU” appears on the display.
Step 2: Press the right arrow key (
) in the display area. The message “1 <TAG>”
appears.
Step 3: Press the down arrow key (
) in the display area five times. The message
“<Zero Adjust>” appears.
Step 4: Press the right arrow key (
). When the message “Are you sure?” appears,
press the [Enter] key (E). When the message “Zero Completely” appears, the
process is finished.
Note:
To interrupt the operation, press the [Menu] key (M) to return the display to the flow
rate indication.
If an error occurs during execution, either of the following messages is displayed:
•
“Zero Over OK?”
This means that the zero point has significantly deviated. Check for any
installation disorder, clogging of the pipe, stagnant flow, etc. Pressing the [Enter]
key (E) once again causes the system to execute the zero adjustment again.
• “Sensor Range Over”
This message appears when the present value exceeds the sensor range. If this
message is displayed, contact our sales representatives' office, your distributor, or
our customer services department directly.
Summary of Contents for MVC10A
Page 1: ...The Multivariable Air Flow Meter Model MVC10A 10F User s Manual CM2 MVC200 2001 ...
Page 10: ...Table of Contents ...
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