Calibration of U137, U235 & 237 Series Weight Indicators.
Date:141027 B01950 3(10)
Miscellaneous functions.
13
*=0
=1 Difference (flow) calculated at a signal on the CTS input, J1:9. See page 9 and B01521. No count mode.
=2 Difference (flow) calculated every measurement cycle. See page 9 and B01521. No count mode.
=3 Difference (flow) calculated every 100 measurement cycle. See page 9 and B01521. No count mode.
+4 Not used.
+8 Not used.
14
*0 Setpoints are compared with displayed weight. For fast setpoints, use short measurement time in Cs08.
+1 Setpoints are used for over load and compared with gross value. On time delay is between 1 and 2 times
the measurement time according to Cs08. Off time delay is 8 times the measurement time.
+2 Not used.
+4 Not used.
+8 Not used.
15
*0 No battery timer.
+1 Leading zero blanking. For U235 series.
+2 Not used.
+4 Battery timer 64 measurement times time in Cs08.
+8 Battery timer 256 measurement times time in Cs08.
+12 Battery timer 1024 measurement times time in Cs08.
The timer is reset at button push or weight change more than 8 times the motion band. U235 & U2372.
16
*=0 .
+1 Not used.
+2 Not used.
+4 Not used.
+8 Not used.
Calibration.
17
=0 x x x x x .
=1 x x x x . x
*=2 x x x . x x
=3 x x . x x x
=4 x . x x x x (Not display for U237)
=5 No decimal point.
+8 TARE is combined ZERO and TARE button. For U235 & U2373. All other buttons works as normal.
1
18
*=0 1 Verification scale interval (increment) e or e at multiple range.
=1 2
=2 5
=3 10
=4 20
=5 50
+8 Only LED indicator is sent out on synchronous output. (G ives more stable display.)
19
*=0 Single range. Below the range change in % of max gross weight as function of min interval.
=1 2 ranges: 1 at 50% .
2 at 40% .
5 at 50% .
=2 3 ranges: 1 at 20 & 40% .
2 at 20 & 50% .
5 at 25 & 50% .
=3 4 ranges: 1 at 10 & 20 & 50% .
2 at 10 & 25 & 50% .
5 at 10 & 20 & 40% .
=4 5 ranges: 1 at 5 & 10 & 25 & 50% .
2 at 4 & 10 & 20 & 40% .
5 at 5 & 10 & 20 & 50% .
=5 6 ranges: 1 at 2 & 4 & 10 & 20 & 40% .
2 at 2 & 5 & 10 & 20 & 50% .
5 at 2.5 & 5 & 10 & 25 & 50% .
=6 Not used.
=7 Calibrated value with one additional digit and always 1 in interval. Not U1370 and U235.
+8 Multiple range change to range 1 is made only at zero indication. Range up is locked at stable weight.
Range indication. U137, U235: 1 no; 2 lower; 3 upper; 4 lower + upper right indicator on. U237: Range 1
none; 2 low; 3 +middle; 4 +high; 5 +low left; 6 +low right segment on, last digit. +, add to previous range.
1
Zero range is up to ±2% of Max .
The advantage of more ranges is a faster scale and less sensitivity to tilt.
For legal scales the following data must be met in the test certificate of the load cell (See B01990):
n
1
max
Max /e
#
2.5Z.
Z = E
/2DR. DR = Min dead load output return. If there is no Z in the load cell test
certificate, Z = 1000x may be used, where x is from load cell accuracy class designation Cx.
n
Max may be set according to Cs21.
max
1
max
max
min
min
E
A
/
N/e
#
Y.
E
= Max load cell capacity. N = Number of load cells. Y = E
/v
. v
= M in verifica-
min
tion scale interval. Y or v
from the load cell test certificate.
max
exc
1
exc
1000
@
C/E
@
U
/N
@
e
$
0.6
:
V.
C = Output in mV/V. U
= 10V except U2379, which has 5V.
20
*=0 Normal calibration for scales. Lower respective upper horizontal segments in the display are on when inside
AD-converter range below respective above the calibrated range.
=1 No zero functions. Full AD-converter range is used.
=2 No limits on zero range. Multiple range also works at decreasing weight.
Note! Can not be combined with Peak value mode Cs2: +4.
=3 Inverted calibration (for displacement level meters). No zero functions. Full AD-converter range is used.
=4 As Cs19:+8 but change to low range is made at zero or negative gross weight.
+8 If the last decimal at multiple range is a non-significant zero, it is blanked.
