FORM DOC 120 A
MU 7093 EN C
DUAL TRONIQUE
Page 34/69
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Switch to SUPERVISOR mode, select
ENTER STANDARD VALUE
and validate.
Enter the reference volume (read on the gauge and corrected), then validate. The
MIC displays the information that follows:
The signed error in percent (%)
The coefficient revised as a function of the error
The average flow of the delivery.
0100
1
.4
L
ENTER QUANTITY (REF)
-00.33
ERROR (PERCENT)
09.9668
COEFFICIENT (P/L)
ENTER STANDARD VALUE
27.3
AVERAGE FLOWRATE
L kg/
m
3
/h
6.1.1.2 Sub-menu LINEARISATION/FLOW
This menu is used to make a flow-correction for two measuring points (at low and high
flowrate). The MIC stores flowrate and coefficient calibrated values in
order to define both correction points: at low and high flowrate.
When you validate the menu, the calibrated values are displayed; you need to
unseal the MIC
to switch in METROLOGICAL mode and enter the
values via the
EM>METER COEFFICIENT menu.
To linearize the curve, two tests are necessary:
Fill the gauge in high flow [flowminx3]≤high flow<[flowmax], and enter the volume
read on the gauge (or use a master meter) in the menu
ENTER STANDARD VALUE
as described above
Fill the gauge in low flow [flowmin]≤flow<[flowminx1.5], and enter the volume read
on the gauge in the menu
ENTER STANDARD VALUE
Choose the menu
LINEARISATION/FLOW
and validate It is then possible to see the
coefficients and the flow rates data for the two tests carried out.
LINEARISATION/FLOW
0.9.9890
LF COEFFICIENT (K1)
09.9845
HF COEFFICIENT (K2)
5.3
LOW FLOW
L kg/
m
3
/min
/h
29.6
HIGH FLOW
L kg/
m
3
/min
/h
If the procedure failed, the MIC can display the information that follows:
LARGE GAP K1/K2
: Correction between both measuring points >0.5%
FLOWS TOO CLOSE
: High flowrate value is out of range. It needs to be
[flowminx3]≤high flow<[flowmax].
LO-FLOW OUT OF RANGE
: Low flowrate value is out of range. It needs to be
[flowmin]≤low flow≤[flowminx1.5]
ONLY ONE STANDARD
: One of the tests has not been done (at low or high flowrate)
NO VALID STANDARD
: Both tests have not been done (at low and high flowrate).