Electromagnetic flowmeter M910
Operation manual
41
Command sets conversion constant for flowrate user unit with respect to [l/s].
<DNPD>
It represents a constant, which is calculated as a ratio between flowrate in user unit and flowrate in basic unit ( [l/s]
). For example constant for [m3/h] is 3.6. M910 confirms execution with string „Ok<cr>”. In case of query M910
returns set constant.
Example:
Command „FFC3.6<cr>” sets constant “3.6 “. After query „FFC?<cr>” flowmeter returns „3.600000<cr>”.
Conversion constant for volume user unit
FVC(?)<DNPD>
Command sets conversion constant for volume user unit with respect to [l].
<DNPD>
It represents a constant, which is calculated as a ratio between volume in user unit and volume in basic unit ( [l] ).
For example constant for [m3] is 0.001. M910 confirms execution with string „Ok<cr>”. In case of query M910
returns set constant.
Example:
Command „FVC0.001<cr>” sets constant “0.001 “. After query „FVC?<cr>” flowmeter returns „0.001000>”.
Flowrate direction
FFD(?)<CPD> { 0 | 1 }
Following directions can be set:
•
0 Positive
•
1 Negative
M910 confirms direction with string „Ok<cr>”.
Example:
Command „FFD0<cr>” sets “Positive direction”. If query „FFD?<cr>” is sent, flowmeter returns response in
format „0<cr>”.
Low flow cutoff
FLF(?)<DNPD>
Command sets flowrate limit for suppression low flowrates.
<DNPD>
It represents flowrate expressed in actual unit. All flowrates below this limit are displayed as 0. M910 confirms
execution with string „Ok<cr>”. In case of query M910 returns set low flow cut-off.
Example:
Command „FLF0.2<cr>” sets low flow cut-off “0.2“. After query „FLF?<cr>” flowmeter returns „0.200000<cr>”.
Time constant
FTC(?)<DNPD>
Command sets time for moving average calculation.
<DNPD>
It represents time expressed in seconds. Any value in range between 1 second and 20 seconds can be set. M910
confirms execution with string „Ok<cr>”. In case of query M910 returns time constant.