PerkinElmer LS 55, Руководство пользователя

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146 . LS 55 User’s Guide
Command: SET PHOSPHORESCENCE DARK CURRENT
Syntax: $SD data collection cycles.
Description: The specified number of data collection cycles are averaged to
produce the dark current reading. Data collection cycles must be
an integer in the range 1 to 1000. The default when the power is
switched on is 10 cycles the dark current is set to zero. Returns
error code 0103 if not in phosphorescence or bioluminescence
mode.
Command: SET AUTOZERO
Syntax: $AZ, data collection cycles.
Description: Uses current data collection parameters to average the specified
number of data collection cycles to produce a zero offset reading
to be subtracted from all subsequent data before output. Data
collection cycles must be integer and in the range 1 to 1000.
Returns current autozero offset if no parameter given. $AZ 0 sets
offset zero (autozero off). Power-on default is autozero off.
Command: SET AUTOCONC
Syntax: $AC concentration value
Description: Uses current data collection parameters to average 100 data
collection cycles to produce a standard intensity reading. This
reading is output in single point format (refer to $RD) and is
ratioed with the specified concentration value to give a scaling
factor (concentration/intensity) which is applied to all subsequent
data output. Concentration value must be integer in the range
100 to 999999. Returns current scaling factor (format
xxxxxx.xxxx) if no parameter given. $AC 0 set autoconc off.
Power-on default is autoconc off.