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Number of divisions The leftmost switch has the highest value: 50% of 15,000 divisions, with each
following switch to the right this value halves : 25%, 12.5% …a.s.o.
From the number of switches at “on” the selected number of divisions may be
determined . And, with the other way around, a pre-calculated number of
divisions may be selected (adjusting based upon calculated values).
The next table indicates the exact number of divisions per switch.
Divisions per span switch
In the actual production of the 348 the real number of divisions is 0.1% higher
at 15,015 divisions, + or - max. 10 divisions.
Accuracy : The last switch 32 (LSB) achieves an accuracy of the span setting of
+ or - 0.11 division at full 15,000 selection. At a lower number of divisions
selected, this accuracy improves: at 3,000 divisions it is + or - 0.023 division.
Procedure : Start with all the switches at “on”. Load the scale with an accurate known
weight. The weight reading on the internal display will too high.
Set the leftmost switch (nr.17) down at “off” and check whether the reading still
gives a too high value.
If too high, leave the switch “off”, if too low already, set back the switch “on”.
Go to the next switch (18) and repeat the procedure, and so on up to switch 32
until the required weight reading is achieved.
Attention
: before starting the span adjustment procedure an accurate zero
setting procedure (4.3) and adjustment of the scale division value (4.8) has to
be accomplished first. The overload switches 38 t/m 48 should all be “on” .
No interference with : Setting or changing the span settings does not effect in any way the zero and
zero/dead load adjustment dead load adjustments.
4.5 ADJUSTING : OVERLOAD SWITCH 38 - 48
System : The effective total weighing range is limited up to the with switch 38 t/m 48
selected maximum weighing capacity: “Max”. Some of the error reports and the
linearity compensation are based upon this overload value.
Also the legal limit of “Max” + 9 e are based upon the selected overload
setting.
Accuracy : Plus or minus 0.025% van de selected input sensitivity.
Manual 348-2 V 3.1 Page 15 01-06-2007
Span switches 17 up to 32, in total 15,000 divisions
sw. nr. number of divisions sw. nr. number of divisions
17
18
19
20
21
22
23
24
7500.00
3750.00
1875.00
937.50
468.75
234.38
117.19
58.59
25
26
27
28
29
30
31
32
29.30
14.65
7.32
3.66
1.83
0.92
0.46
0.23
15


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