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252_EN_IS_1_3_00.doc
MENU 1.SENSOR
(POS. 1) Nominal diameter of sensor
[ND= XXXX]
FUNCTIONS DESCRIPTION
(description of the functions with access code< 3)
MENU 1.SENSOR
(POS. 1.7) “empty pipe” calibration
[E.P. CALIBR.]
This function enables/disables the automatic calibration procedure of the empty pipe detection
function. Before enabling this function, the Empty Pipe test should be enabled first as above
described. Before performing this function, the sensor has to be completely filled with the liquid
so that both the lining and the electrodes are wetted. The sensor has then to be emptied again
and then you should press the key : the operation will have to be confirmed by pressing the
key or cancelled by pressing the key . By this function the system sets the value of a
parameter that could also be manually changed (see function “E.P.thr” menu 4-ALARMS).
(POS. 1.8) “Autozero” calibration
[AUTOZERO CAL.]
Enables/disables the automatic zero calibration system. It is necessary to perform this function at
the first sensor installation or after a long period the sensor has been empty. To perform the
sensor it is absolutely necessary the sensor is full of liquid and that the liquid is perfectly staying
still. Even very small movement of the liquid may affect the result of this function, and,
consequently, the accuracy of the system. Once you are sure the a.m. conditions are fulfilled
press for more than one second the key ; will start one counter for 60 s, after that check if
the zero is correct , otherwise repeat the operation again. Press to go out the function.
MENU 2.SCALES
(POS. 2.1-2.2) Full scale n° 1-2
[FS1-2=
dm³/S
X.XXXX]
Full scale value set for range N.1-2. There are four fields to fill in order to set this parameter,
from left to right: 1) volume unit of measure, 2) type of unit, 3) time unit of measure and 4)
numeric value. The selection is made by positioning the cursor on the field to modify. To change
the type of unit of measure (metric, British or American, mass or volume) the cursor has to be
positioned on the symbol “/” (field N. 2). When the nominal diameter is set to zero it is possible
to modify only the numeric field, since the unit of measure stays at m/sec. The following tables
show the units of measure available and the conversion factor by comparison with 1 dm
3
and 1
kg. The converter accepts any kind of combination of units of measure satisfying both the
following conditions:
•
Numeric field value
≤
99999
•
1
/
25
fs
max
≤
numeric field value
≤
fs
max
.
where fs
max
is the maximum full scale value corresponding to the sensor, equal to a 10 m/sec
liquid speed. The units of measure are shown as appear on the display. The British and American
units are diversified by using capital and small characters.
Menu visualized on the converter ( from 1 to 11)
Synthetic description of the function
Identification of the function (not visualized on display)
Converter request
