Valmet MCA - Page 54

Enter Lab
This function allows you to enter the laboratory value
for the sample taken.
Move the cursor onto Enter Lab and press the right
arrow. The following display appears:
MCA: MCA-1234
Enter lab
Lab Cs
Filler%
Kaolin
CaCO3
Talc
TiO2
Chemical
Lab Cond
Enter the necessary laboratory information:
Lab Cs: Laboratory consistency.
Filler %: The relative proportion of filler in the total
consistency, shown as a percentage.
Kaolin%: The relative proportion of Kaolin in the filler,
shown as a percentage.
CaCO3%: The relative proportion of CaCO
3
in the filler,
shown as a percentage.
Talc%: The relative proportion of talc in the filler,
shown as a percentage.
TiO2%: The relative proportion of TiO
2
in the filler,
shown as a percentage.
Chemical: Chemical type (required only for chemical
compensation).
Lab cond: Laboratory conductivity mS/cm (required
only for chemical compensation).
NOTE: If the conductivity meter shows results in units
µmho/in, divide the result by 2500, e.g. 25 000 µmho/in
= 10 mS/cm. If the conductivity meter shows results in
units mS/m, divide the result by 100, e.g. 550 mS/m = 5.5
mS/cm. If the conductivity meter shows results in units
µS/cm, divide the result by 1000, e.g. 5500 µS/cm = 5.5
mS/cm.
Offset corr
This function allows you to perform level correction on
the measurement.
Move the cursor onto Level corr and press the right
arrow. The following display appears:
M C A : M C A - 1 2 3 4
S e t t h e o f f s e t
c o r r e c t i o n : [ - 1 0 ,1 0]
0
0
D E L A B O R T E N T E R
Enter the desired value and press ENTER (F4). The
HART Communicator sends the value to Valmet MCA.
Filler
Valmet MCA measures filler, but at a slightly different
sensitivity than fibers. The Filler function allows you to
inform the device about filler changes if the relative
total filler percentage changes more than 5 percentage
points.
Move the cursor onto Filler and press the right arrow.
The following display appears:
E n t e r F i l l e r %
0 . 0 0 0 0
0 . 0 0 0 0
D E L A B O R T E N T E R
In this field enter the relative filler percentage. For
example, if the total consistency is 3 %Cs and the filler
percentage of that is 0.3 %Cs absolute consistency,
then the relative total filler percentage is 0.3 %Cs / 3
%Cs x 100 % = 10 %:
E n t e r K a o l i n %
0 . 0 0 0 0
0 . 0 0 0 0
D E L A B O R T E N T E R
Enter the relative percentage of kaolin and press
ENTER (F4). Repeat these steps for CaCO
3
, talc, and
TiO
2
. The sum of the filler components must be 100 %.
After you have entered the values, then the display
shows the filler sensitivity compared to wood fiber, as
calculated by the device.
M C A : M C A - 1 2 3 4
S e n s i t i v i t y = 0 . 9 7
A B O R T O K
Select OK (F4) to return to Calibrate display.
Installation & Owner’s manual OUL00298 V2.3 EN
54
Valmet Mircowave Consistency Transmitter