Twilight MC-SUP2000H, Руководство пользователя

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Chapter 6 How to
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with ‘0’. This means the flow meter will avoid any invalid accumulation when the
actual flow is below the zero-cutoff value.
The low-cutoff value does not affect the flow measurement when the actual flow is
absolutely greater than the low-cutoff value.
6.11.How to setup a zero point
There exists a ‘Zero Point’ with certain installation which means the flow meter will
display a non-zero value when the flow is absolutely stopped. In this case, setting a
zero point with the function in window M42 will bring a more accurate measurement
result.
Make sure that the flow is absolutely stopped, then run the function in window M42
by pressing the ENT key.
6.12.How to get a scale factor for calibration
A scale factor is the ratio between the ‘actual flow rate’ and the indicated value by
the flow meter.
The scale factor can be determined by calibration with flow calibration equipment.
6.13.How to use the operation locker
The system locker provides a means of preventing inadvertent configuration
changes or totalizer resets.
When the system is locked, menu window browsing can be done without affecting
any change, but any modifications are prohibited.
The system can be locked without a password or with a one 1 to 4 digit password.
With a no- password locking, directly press the ENT key when the password input
prompt displays.
If the password is forgotten, please contact the factory.
6.14.How to use the built-in data logger
The data logger has a space of 24K bytes of memory, which will hold about 2000
lines of data.
Use M50 to turn on the logger and for the selection for the items that is going to be
logged. Use M51 for the times when the logging begins and at how long an interval
sustains and how long the data logging will last.
Use M52 for the direction of logging data. The default setting will permit the logging