MCS260
CORNERSTONE 260 MONOCHROMATORS
54
Cornerstone Grating Commands
GRAT X {GRAT?} [GRAT]
Moves the wavelength drive to the grating specified in the integer parameter. The parameter
should be either "1", "2" or “3”. When changing to grating #1 the instrument stops at the maximum
wavelength for that grating. When changing to grating #2 or #3, the system stops at the zero order
position for that grating. Therefore, this command is usually followed by a GOWAVE command.
The response to GRAT? contains three parameters separated by commas without spaces. The
first parameter is the grating number, then the lines/mm, then the label for that grating. For
example: “1,1200,BLUE[cr][lf]”.
GRAT1LABEL TTTTTTT {GRAT1LABEL?} [SHIFT LABEL]
Sets the user defined “label” for the grating #1 to the < 9 character parameter “TTTTTTTT”. The
parameter can letters or numbers. This label is for informational purposes only. Oriel uses these
labels to indicate blaze wavelength for those gratings that are installed in Cornerstone at the
factory. Note: that the Hand Controller only displays four characters, however all eight may be
entered. Also, the Hand Controller only changes the current grating parameters.
GRAT2LABEL TTTTTTT {GRAT2LABEL?} [SHIFT LABEL]
Sets the user defined “label” for the grating #2 to the < 9 character string parameter “TTTTTTTT”.
The parameter can letters or numbers. This label is for informational purposes only. Oriel uses
these labels to indicate blaze wavelength for those gratings that are installed in Cornerstone at the
factory. Note: that the Hand Controller only displays four characters, however all eight may be
entered. Also, the Hand Controller only changes the current grating parameters.
GRAT3LABEL TTTTTTT {GRAT3LABEL?} [SHIFT LABEL]
Sets the user defined “label” for the grating #3 to the < 9 character string parameter “TTTTTTTT”.
The parameter can letters or numbers. This label is for informational purposes only. Oriel uses
these labels to indicate blaze wavelength for those gratings that are installed in Cornerstone at the
factory. Note: that the Hand Controller only displays four characters, however all eight may be
entered. Also, the Hand Controller only changes the current grating parameters.
GRAT1LINES XXXX {GRAT1LINES?} [LINES]
Sets the lines per millimeter of grating #1 to the integer parameter specified as XXXX. Warning:
this value is used to calculate wavelength motion. Lines/mm is usually changed only when
installing a new grating, and in that case, the parameter should match the value provided by
Newport. Note, the Hand Controller only changes the current grating parameters.
GRAT2LINES XXXX {GRAT2LINES?} [LINES]
Sets the lines per millimeter of grating #2 to the integer parameter specified as XXXX. Warning:
this value is used to calculate wavelength motion. Lines/mm is usually changed only when
installing a new grating, and in that case, the parameter should match the value provided by
Newport. Note, the Hand Controller only changes the current grating parameters.
GRAT3LINES XXXX {GRAT3LINES?} [LINES]
Sets the lines per millimeter of grating #3 to the integer parameter specified as XXXX. Warning:
this value is used to calculate wavelength motion. Lines/mm is usually changed only when
installing a new grating, and in that case, the parameter should match the value provided by
Newport. Note, the Hand Controller only changes the current grating parameters.
GRAT1FACTOR XXX.XXX {GRAT1FACTOR?}
Sets the calibration factor of grating #1 to the numeric parameter specified as XXX.XXX. Warning:
this value is used to calculate wavelength motion. Factor is usually changed only when installing a
new grating, and in that case, the parameter should match the value provided by Oriel.
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