04/03
347
LB
444
44
Stop measurement by pressing the <
run
> button again.
Accept result with <
enter
>. Cursor jumps to next row.
Enter the density value of the sample(s) determined in the lab in g/cm
3
and confirm with
<
enter
>. Cursor jumps to third row.
Push <
enter
> to confirm current product temperature.
Proceed in the same manner for the other rates. Rates that are not used must contain
“0”. If “0” is already there, press <
more
>. Otherwise, delete values with <
clear
> and
confirm each with <
enter
>.
Push <
sk2
> to select
Calculate
.
Select calibration mode according to the number of entered value pairs (
lin
for 2,
squ
for
3 and
cub
for 4 and more value pairs; if you chose
auto
, the program automatically se-
lects the best calibration mode. Prerequisite: 4 value pairs).
Upon confirmation with
<
enter
>,
calibration is carried out and the calculated
coefficients can be viewed.
The program calculates the linear absorption coefficient and displays it as
Result a1
.
The calculated
zero count rate I0
is displayed.
Depending on the selected calibration mode, the program calculates the following coeffi-
cients and displays them:
Coefficient a1
,
a2, a3 and the square error
If necessary, enter a
factor
for multiplicative correction of the measured values.
If necessary, enter an
Offset
for additive correction of the measured values.
Display of temperature-corrected density values.
Push <
done
> to return to submenu group.
Push <
run
> to start the measurement.
Calibrate once more if current output limit value changes (see page 22).
6.3
Measurement
Start measurement:
Push <
run
>
Stop measurement:
Push <
run
> again
Result display for density and concentration measurements:
Current measured value in selected unit
Average count rates (averaging according to entered time constant)
Current count rate
Display of adjusted high voltage
Result display for mass flow measurements:
Current concentration [G% and mass flow [kg/h]
Integrated mass
Current volume flow
Flow = [m
3
/h
Summary of Contents for LB 444
Page 1: ...Density Meter LB 444 Id No 32816BA2 Rev No 04 22 04 03 ...
Page 2: ......
Page 9: ...04 03 347 LB 444 VII ...
Page 10: ......
Page 109: ...04 03 347 LB 444 99 13 4 Mounting Device 90 for Pipe Diameter 21 3 76 1 mm ...
Page 112: ...04 03 347 LB 444 102 ...
Page 113: ...04 03 347 LB 444 103 ...
Page 114: ...04 03 347 LB 444 104 ...
Page 117: ...04 03 347 LB 444 1 14 Ex Certificates for Evaluation Unit ...
Page 118: ...04 03 347 LB 444 2 ...
Page 119: ...04 03 347 LB 444 3 ...
Page 120: ...04 03 347 LB 444 4 15 Ex Certificate for the Detectors ...
Page 121: ...04 03 347 LB 444 5 ...
Page 122: ...04 03 347 LB 444 6 ...
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Page 124: ...04 03 347 LB 444 8 ...