8 Commands and responses
8.3.3 Dark calibration command
Dark Calibration is done at the factory along with Light calibration and calibration temperature recording.
Executing the dark calibration command “
zcalBx
” arms the dark calibration mode.
Dark calibration is performed in a completely dark environment. Check a reading to ensure that the period is correct
after entering the dark environment, it could take a few minutes to collect an accurate dark period. A dark period of only
a few seconds is too small.
The format of the response is shown in table 8.7:
Table 8.7: Dark calibration response
Column
Example value
Description
0
z
Calibration response is being returned.
1
B
Dark Calibration.
2
a
Armed.
3
L
L = Locked; Wait for unlock before calibrating after Arm command,
firmware upgrades are disabled.
U = Unlocked; Calibrate immediately after Arm command, Enable
firmware upgrade.
4-5
Carriage return (0x0d), Line feed (0x0a).
An example of the response is:
zBaL
012345
8.3.4 Disarm calibration command
The Disarm calibration command “
zcalDx
” disarms calibration modes from being triggered by the unlock mode.
The format of the response is shown in table 8.8:
Table 8.8: Disarm calibration response
Column
Example value
Description
0
z
Calibration response is being returned.
1
x
Indicates “All” calibration modes.
2
d
Disarmed.
3
L
L = Locked; Wait for unlock before calibrating after Arm command,
firmware upgrades are disabled.
U = Unlocked; Calibrate immediately after Arm command, Enable
firmware upgrade.
4-5
Carriage return (0x0d), Line feed (0x0a).
An example of the response is:
zxdL
012345
44
Unihedron SQM-LU Operator’s Manual -
20170728
Содержание SQM-LU
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