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M64
Not used
M65
Not used
M66
Not used
M67
Window to set up the frequency range (lower limit and upper limit) for the
frequency output. Valid values: 0Hz-9999Hz. Factory default is 1-1001 Hz
M68
Window to set up the minimum flow rate which corresponds to the lower
frequency limit of the frequency output
M69
Window to set up the maximum flow rate which corresponds to the upper
frequency limit of the frequency output
M70
LCD display backlight control. The entered value indicates how many seconds the
backlight will be on with every key pressing.
M71
LCD contrast control. The LCD will become darker when a small value is entered.
M72
Working timer. It can be reset by pressing key, and then select YES.
M73
Alarm #1 lower threshold setup. Below this threshold the #1 Alarm will be
triggered. There are two alarming methods. User must select the alarming output
items from window M78 or M77
M74
Alarm #1 upper threshold setup
M75
Alarm #2 lower threshold setup
M76
Alarm #2 upper threshold setup
M77
Buzzer setup.
If a proper input source is selected, the buzzer will beep when the trigger event
occurs.
M78
OCT (Open Collector Output) setup by selecting a proper triggering source, the OCT
circuit will close when the trigger event occurs
M79
Not used
M80
Not Used
M81
Not used
M82
Setup for daily totalizer, monthly totalizer and yearly totalizer
M83
Not used
M84
Not used
M85
Not used
M86
Not used
M87
Select transducer power between 1-10 (default 10)
M88
Set receive window start
M89
Set receive window end
M90
Display signal strength, signal quality and transit time ratio (upper right corner).
M91
Display the transit time ratio. The ratio value should be in the range of 100±3% if
the entered pipe parameters are correct and the transducers are properly
installed. Otherwise, the pipe parameters and the transducer installation should be
checked.
M92
Display the estimated sound speed of the fluid in the pipe. If this value has an
obvious difference with the actual fluid sound speed, the user is recommended to
check if the pipe parameters are correct and if the transducer installation is good.
M93
Display the total transit time and delta time (transit time difference between
upstream and downstream travelling)
