Vetek AWT20L, Инструкция по установке и эксплуатации

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8
-
If the value in mV is correct and the output signal is wrong, probably non-authorised operators have
changed the full scale by mistake, therefore move on to the
Calibration page.
-
If the value in mV is lower than the calculated value, probably there are mechanical friction, after
verifying them move on to the
Load cells check .
-
If the value in mV is superior to the calculated value move on to the Load cells check .
CALIBRATION
Make sure that the container is empty, verify that the output is 0Vdc or 0mA or 4 mA ( in accordance with
model used ), then put a calibrating weight equal to at least 50% of the full scale and use the trimmer of
fine full scale to move the corresponding output to the exact value, if the trimmer isn't sufficient use the
dip-switches of coarse full scale. Then check the 0Vdc or 0mA or 4mA again, and if necessary adjust it
again; put the calibrating weight and check the output, repeat this operation until the output is corrected.
DIP-SWITCHES OF COARSE FULL SCALE
to obtain 20 mA or 10 Vdc output corresponding to the input mV
0 = OFF 1 = ON
REGISTERED VALUES WITH ZERO DIP SWITCHES IN 0000 POSITION AND ALL ZERO TRIMMER ANTI CLOCKWISE
input mV to obtain 10Vdc or 20mA output
DIP-SWITCHES
POSITION
from - mV
ALL AMPLIFICATION
TRIMMER
ANTICLOCKWISE
to - mV
ALL AMPLIFICATION
TRIMMER CLOCKWISE
1 2 3 4
1 1 1 1
0 1 1 1
1 0 1 1
0 0 1 1
1 1 0 1
0 1 0 1
1 0 0 1
0 0 0 1
1 1 1 0
0 1 1 0
1 0 1 0
0 0 1 0
1 1 0 0
0 1 0 0
1 0 0 0
0 0 0 0 - - - -
31,2
20,8
15,5
12,5
10,3
8,8
7,7
6,9
6,3
5,8
5,3
4,9
4,5
4,2
3,9
3,7
- - - -
19,5
14,8
12,0
10,0
8,6
7,5
6,7
6,1
5,6
5,2
4,8
4,5
4,2
3,9
3,7
3,5