Design, Assembly and Service Manual
Page 34 of 44
Induction flow meter FMG600 series
The display will return to the menu items “Output 1 Function” or “Output 2 Function”.
To return to the basic menu, depress push-button .
Exceeding (dropping below) the limit values of flow rate
In the cases of exceeding (dropping below) the preset flow-rate limit values, the output will close (open).
Upon return within the normal operating range, the output will open (close) again with a preset hysteresis.
Regarding the flow rate conditions, there are four different modes of operation:
Q > Q lim.
Q < Q lim.
IQI > Q lim.
IQI < Q lim.
Menu:
Output function, depress / Output 1 (2) function, depress / Q > Q lim., depress
The display will read “Flow rate limit [1] xxxxxx“. Move the cursor using push-button , and
increase/decrease the values at various “x” positions using push-buttons or , respectively. Replace
xxxxxx by a figure equal to the flow rate which, when exceeded, should cause the output to close. Depress
. The display will read “Value entered Press any key”. Press any key, preferably . The display will then
show the message “Hysteresis [1] xxxx”. Move the cursor using push-button , and increase/decrease the
“x” values using push-buttons or , respectively. Replace xxxx by a figure representing hysteresis,
between the closing and opening output functions. Depress . The display will read “Value entered Press
any key”. Press any key, preferably . The display will return to the menu items “Output 1 function” or
“Output 2 function”.
To return to the basic menu, depress push-button .
Electrode cleaning in progress (No cleaning)
While the electrode cleaning process is in progress, the output is closed (open).
Menu:
Output function, depress / Output 1 (2) function. depress / Cleaning in progress (No cleaning),
depress
The display will return to the menu items “Output 1 Function” or “Output 2 Function”.
To return to the basic menu, depress push-button .
7.1.5. Electrode cleaning
During the meter operation, non-conducting substances may accumulate in the form of a layer on the sensor
electrodes. This increases the contact resistance between the electrode and the measured fluid and results
in decreased measurement accuracy. The FMG600 SERIES flow meter offers a sensor electrode cleaning
function without sensor dismantling. The cleaning method is based on the electro-chemical phenomenon
