44 1538 101-B
Manual flow meter FMOGne
7
2.4.3
2.4.3
2.4.3
2.4.3
Battery
Lithium battery (Type CR ½ AA, 3.6V, 1200 mAh) with a minimum operating life of
approx. 10 years given a 1,000,000 litre flow rate during this period.
The battery can be replaced once the housing is opened. Cumulative and calibration
values are not affected by replacement.
2.4.4
2.4.4
2.4.4
2.4.4
Recording of measurement values
Logging the measurement chamber double-pulse signal.
Fault-redundant storage and read-out of measurement unit and calibrating factor.
3.
Operating manual
3.1
Delivery state
On delivery the meter is provided with the factory “litre” measurement unit and the
“1,000” calibrating factor. Pre-tested meters have a calibrating factor already factory-
adjusted. Alternatively this adjustment can be undertaken at a later date. The meter
as it is can meter deliveries.
3.2
Basic state, flow measurement
In the basic state the LC display indicates the metered volume since the last reset. The
display has three digits before the decimal point and two after; 0.01 litre is the
minimum digital step. The “litre” measurement unit (optional US-Gal, UK-Gal) is shown
on the lower line.
3.3
Reset – “Reset” key
On pressing the “Reset” key, the programme status is shown for as long as the key
remains pressed. On releasing the key, all the segments are tested one after the other
followed by flow meter resetting. Should pulse signals proceed (volume flow) during
the above, then the display test is interrupted and changed to the basic state.
3.4
Totaliser – Key “Total”
On pressing the “Total” key, the totaliser status is shown for as long as the key
remains pressed. The display is rounded in litres (optional US-Gal, UK-Gal). Should
pulse signals proceed (volume flow) during the display, then the totaliser status
display is interrupted and changed to the basic state.
3.5
Calibrating factor display – Keys “Total” + “Reset”
When the “Reset” key is pressed in addition to the pressed “Total” key (totaliser
status display), the set calibrating factor is displayed for as long as the two keys are
pressed. The calibrating factor can be between 0.500 and 1.500.
Should pulse signals proceed (volumetric flow) during the display, then the calibrating
factor display is interrupted and changed to the basic state.