Fluid Components International CMF Series Manual Electronics Setup and Menus User Manual

Page 12

Commissioning

FlexCor

™

Model CMF Series

Fluid Components Intl

Document 06EN003327 Rev. -

7.5.5 Reset mode

Reset mode
In the reset mode menu the totalizer 1 and 2 and the batch cycle counter can be reset.

0-point adjustment
0-point adjustment of the flow meter is done in the zero adjust menu. The adjustment can be made

automatically where the meter measures and calculates the correct 0-point. In manual mode the

0-point can be programmed if this is known. Normally the automode is used.

Zero adjust time determines the period of time for the automatic 0-point adjustment. As default

a period of 30 sec. is used which normally is enough for a stable 0-point mesurement. If the
flowmeter is used where small flow rates are measured very accurately, a longer integration time

can be selected, to obtain better 0-point measurement.

Setting the 0-point is carried out by activating zero adjust. A number of individual 0-point

measurements are made. The 0-point found is shown as zero adjust. The value zero sigma

shows the standard deviation of the individual measurements made. The standard deviation (zero
sigma) must be within a window, which is pre-defined by Fluid Components Intl. This window is

called sigma limit. If the standard deviation is outside the window the following message is shown

in the display: “Zero sigma exceeds sigma limit”. In this case check the installation, ensure that
the pipe is full and that there is absolute 0-flow present. Then repeat the 0-point adjustment. The

new 0-point is automatically stored in the SENSORPROM

and will remain at power down

situations.

Menu detail

Reset mode

Menu description