Unihedron
SQM-LU Users manual
4.2.2 Calibration information request
The calibration information request “
cx
” returns all data about the specific light sensor in the unit
required for to calculate a reading.
The format of the response is:
Column Value
Description
0
c
Indicates that the calibration information is being returned.
2-13
00000017.60m
Light calibration offset in magnitudes per square arc second.
15-26
0000000.000s
Dark calibration time period in seconds with millisecond resolution.
28-34
039.4C
Temperature in degrees C measured during light calibration.
Leading space for positive value.
Leading negative sign (-) for negative value.
36-47
00000008.71m
Offset of light sensor based on manufacturing category.
49-55
039.4C
Temperature in degrees C measured during dark calibration.
Leading space for positive value.
Leading negative sign (-) for negative value.
56-57
Carriage return (0x0d), Line feed (0x0a).
Table 3: Calibration information request response
An example is:
c,00000017.60m,0000000.000s, 039.4C,00000008.71m, 039.4C
0123456789
10
123456789
20
123456789
30
123456789
40
123456789
50
1234567
Revision 1.1
Page 9
Last modified: Jun 18, 2011
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