X
0
OFF
1
ON
IM 12D7B2-E-H
34
7-13. Percent by weight indication on
second display line
ACCESS-CODE : 11 (see § 7-2)
DISPLAY
: *%
Adjustment:(X)
Select the possibility to display % by weight
on the second display line. When %
indication is activated (Select 1) the display
range can be adjusted:
*0%: Adjust low span display value
*100% Adjust high span display value
Explanation:
In case a conductivity measurement is used
for concentration monitoring it can be con-
venient to link the measured conductivity
value to a % by weight concentration value.
A linear concentration indication in % units is
programmed by entering two values.
- X in 3 digits corresponds to 0% of the
output value (= 4 mA)
- Y in 3 digits corresponds to 100% of the
output value (= 20 mA)
Example:
0% output is 93.0% by weight
100% output is 99.0% by weight
The instrument uses interpolation between
the entered values. As the relation between
percent by weight concentration and con-
ductivity is not linear in most cases, the pos-
sibility to linearize the output to concentra-
tion units can be used. Refer to §7-5 and
§7-6. The instrument becomes a concentra-
tion meter by output function and (second)
display (line) based on a conductivity mea-
surement.
Default: OFF
7-14. Polarisation check
ACCESS-CODE : 12 (see §7-2)
DISPLAY
: *POL.CK
Adjustment: (X)
Generation of the fault E1 can be switched
off.
Explanation:
The EXA SC200 normally checks the signal
from the cell to search for distortion typical
of capacitive or polarisation errors. If there is
a problem with the installation or the cell
becomes fouled this will trigger the E1 fault
signal.
In some installations this error detecting can
cause unwanted signals during operation.
Then the possibility to disable this check will
be used.
Note: When 4-electrode measurement is
chosen this checking is not performed.
Default: OFF
X
0
OFF
1
ON
Summary of Contents for SC200
Page 23: ...IM 12D7B2 E H 19...
Page 47: ...IM 12D7B2 E H...
