04/03
347
LB
444
84
10.6
Replacing the Evaluation Unit LB 444
To replace the entire LB 444 evaluation unit, please proceed as follows:
1.
Connect new evaluation computer.
2.
Enter data using the set-up protocol and date of the original set-up.
3.
In submenu Calculate (menu Calibrate), select the calibration mode.
4.
For one-point calibration, enter the absorption coefficients and start calibration proc-
ess with
<enter>
and
<more>
.
5.
For two or multi-point calibration, select the calibration mode and then push
<more>
to start calibration.
6.
Start measurement with
<run>
.
7.
Enter current date.
If the count rates in the individual code numbers were not entered in one day but over a
longer period, please proceed as follows to ensure adequate source decay correction:
1.
Perform steps 2. to 7. for the count rates read-in at calibration date 1.
2.
Enter the value recorded at a later time (count rate, density, temperature).
3.
Enter current date.
4.
Stop measurement process by pushing
<run>
again.
5.
Start calibration process: select calibration more with
<enter>
and then push
<more>
.
6.
Start measurement again with
<run>
.
Example:
Calibration point
Count rates
Density values
Temperatures
in °C
Date
1 23
205
1.1 50
01.02.96
2 20
319
1.2 55
01.02.96
3 21
631
1.15 45
01.04.96
4 17
724
1.3 52
01.04.96
5 22
253
1.12 58
01.10.96
Date of replacement: 01.04.97
1.
Enter date 01.02.96
2.
Enter values 1 and 2
3.
Select calibration mode with <
enter
> and then push <
more
>
4.
Push <
run
>
5.
Enter date 01.04.96
6.
Enter values 3 and 4
7.
Enter date 01.10.96
8.
Enter value 5
9.
Enter date 01.04.97
10.
Stop measurement with <
run
>
11.
Select calibration mode with <
enter
> and then push <
more
>
12.
Start measurement with
<run>
.
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 ...
Page 123: ...04 03 347 LB 444 7 ...
Page 124: ...04 03 347 LB 444 8 ...