Scaling recorder output, To chapter – INFICON UL1000 Helium leak detector User Manual
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78
Description of the Menu
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70
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6
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LR lin
The leak rate output voltage is scaled linear. The fundamental voltage is 0-10 V in
scalable steps from 0.5 to 10 volts per decade.
For information about scaling see chapter
LR log
The leakrate is recorded on a logarithmic scale. The voltage output ranges from
1 … 10 V with steps of 0.5 V per decade.
For adjusting of scaling see chapter
LR mantissa
The leak rate mantissa is recorded linearly from 1 … 10 V.
LR exponent
The exponent is recorded like a step function: U = 1 … 10 V with steps of 0.5 V per
decade, starting with 1 V = 1×10
-12
.
6.6.4.4
Scaling Recorder Output
•
>
>
>
Here the scaling of the recorder output can be adjusted. This adjustment is only valid
for the setting “LR lin” or ”LR log” (refer to Chapter
Example:
Chart recorder output: “LRlog”
Upper limit value is adjusted to 10
-5
(= 10V)
Scaled to 5 V/decade
Lower limit value consequently is 10
-7
(= 0 V)
Fig. 6-21 Example of range of leak rate, log, 0.5 V/decade
0
1
2
3
4
5
6
7
8
9
10
V
-12
-10
-8
-6
10
10
10
10
LR in channel
-4
-2
0
+2
10
10
10
10
Softkey 2:
Arrow up
Adjust decade of the upper limit value
Softkey 3:
Arrow down
Scaling of the previously adjusted value in steps of 0.5, 1, 2, 2.5, 5, 10 Volt/decade. The
complete voltage range is 10 V. (Only for signal “LRlog”)
Softkey 6:
Arrow up
Adjust decade of the upper limit value
Softkey 7:
Arrow down
Scaling of the previously adjusted value in steps of 0.5, 1, 2, 2.5, 5, 10 Volt/decade.
The complete voltage range is 10 V. (Only for signal “LRlog”)