BASI BUFM660 Series, Manual

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4.2.2 Programming mode
In the programming mode data is displayed to assist with parameter setting.
When SEL and MOV keys are pressed simultaneously and released them
immediately, the instrument can enter or exit of the mode. Press SEL key to
select the content, they will be shown in turn. In each parameter, press MOV
to choose the changeable digit,the chosen digit will become dark, and press
INC to change the value, numbers are shown 0-9 in turns. After setting the
right values, press SEL to save and turn into next parameter.
Please pay attention to the sign in the following examples.
Significance Shown
parameters
Notes
Weir type number
(Must be set
correctly)
There are three types of weir can be chosen in this
version BUFM660: Parshall flumes (ISO), Right-angle
triangle weir, rectangular weir.
This parameter displays in the form of “Pabc”, “P” is
unchangeable, the latter three digits “abc” determines
the chosen weir type number.
Please referring to the follow “the weir type number
table”.
Installation height
(Must be set
correctly)
The height is the distance from the bottom of
transmitter to the bottom of the weir.
The unit is M (meter).
Full scale of
instantaneous flow
rate
(Must be set
correctly)
The 20 mA output current corresponding instantaneous
flow rate.
Please set the value at first , the unit of the flow rate
can be chosen in the latter parameters “Fuab”.
This parameter displays in the form of five digits
“abcd0”. The former four digits are changeable, the
finial digit “0” is unchangeable. And the position of the
decimal is decided by the first parameter “Weir type
number”.
Calibration of
output current
This parameter is used for correction of small output
current error. The front two digits before the decimal
point are used for correction of 20 mA, when the value
increases, the 20mA output current will also increase.
The latter two digits are used for correction of 4 mA,
when the value increases, the 4 mA output will also
increase, and vice versa.