DSPEC 50
®
and DSPEC 502
®
Digital Gamma-Ray Spectrometer User’s Manual
932502G / 0618
SET_UNCERTAINTY_PRESET
percent
Sets the uncertainty preset to the specified value in percent. Percent is a floating point value
from 0–99.9999. See also SHOW_UNCERTAINTY_PRESET.
SET_WINDOW
[start, length]
Sets the window of interest to the specified start channel and number of channels. The chan-
nels of spectral data in the window of interest are affected by commands such as CLEAR
and SET_DATA. If neither start nor length is provided, the window is set to the maximum
size allowed by the conversion gain specified. The window of interest is always set to the
maximum size after a SET_DEVICE command or a SET_SEGMENT command.
Non-USB Execution Errors:
%131128085<CR>
The start channel was higher than the conversion gain.
%131129086<CR>
The length specified one or more channels that were too high
conversion gain.
%131132080<CR>
The start channel was specified without a length. If one
value is given, the other must also be given.
SET_ZERO_ADJUSTMENT
value
Sets the zero stabilization adjustment to an arbitrary value from
!
65535 to 65535. The
total range of the adjustment value represents ±256 channels. This adjustment is usually
only made by the gain stabilizer, and reset to 0 with the INITIALIZE_ZERO_
STABILIZATION command. See also SHOW_ZERO_ADJUSTMENT.
SET_ZERO_CHANNEL
chan
Sets the center channel for the stabilizer zero peak. If a zero channel is chosen such that the
beginning channel or ending channel would be below channel 0 or above the maximum
channel, as determined by the conversion gain, the zero peak width is reduced until the peak
fits the device boundaries. A zero channel and width must be set before zero stabilization
can be enabled. See also ENABLE_ZERO_STABILIZATION.
Non-USB Execution Errors:
%131128085<CR>
The specified channel number would create a peak that was
less than the minimum width (3 channels) or would be
outside the device’s range.
%131136084<CR>
The command was attempted while zero stabilization was
enabled.
SET_ZERO_WIDTH
chans
Sets the width in channels for the stabilizer zero peak. The zero width must be chosen such
that the beginning channel is no lower than channel 0 and the ending channel is no higher
than the maximum channel as determined by the conversion gain. The zero channel and
width must be set before zero stabilization can be enabled. The absolute minimum width for
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