ILX Lightwave FPM-8200, Руководство пользователя

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FR O N T PA N E L O P E R A T I O N
The FPM-8200 Front Panel
12
FPM-8200
C H A P T E R
2

Linear Power Mode Display
Depending on the input power level, the FPM-8200 in linear mode displays power
in units nW, µW, or mW. Within these ranges, the decimal point is moved as
appropriate for the value:
To keep the display from rapidly changing when measuring at one of these
boundaries, the display in linear mode includes 1% hysteresis. To illustrate, here
is an example of changing from 99 nW to 100 nW (1% = 1 nW):
Power (watts) <100 x 10
−9
100 x 10
−9
to
<1 x 10
−6
1 x 10
−6
to
<100 x 10
−6
100 x 10
−6
to
<1 x 10
−3
1 x 10
−3
to
<100 x 10
−3
100 x 10
−3
to
<1W

1W
Units nW nW μW μW mW mW mW
Decimal places 3 2 3 2 3 2 1
Example 85.436 nW 327.24 nW 38.361 μW 542.76 μW 38.974 mW 756.58 mW 1062.3 mW
Increasing Decreasing
98.999 100.01
99.000 100.00
99.001 99.99
99.002 99.98
. 99.97
. .
99.998 .
99.999 99.01
100.00 99.00
100.01 98.999
100.02 98.998