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IV: SP-750i Operation
Section IV-A: Initialization
When power is turned ON to the SP-750i, it initializes to a wavelength of 0.0nm for grating number 1.
If the power is switched OFF and then ON again to the SP-750i, it will re-initialize. Initialization gives
the system a reference, or starting position to keep track of wavelength position, grating location, and
other parameters. Alternative start-up parameters can be programmed if the factory defaults are not
suitable (See Appendix A).
Section IV-B: Using the Optional Model 750-749 Remote Scan Controller
The Model 750-749 is a Remote Scan Controller (referred to as “controller” for the remainder of this manual)
for the SP-750i Monochromator/Spectrographs. Functions include scanning of wavelengths, GOTO
for rapidly moving the monochromator to a specific center wavelength, grating selection, and interchanging
of grating turrets. It consists of an H-P Model HP 48G Graphics Calculator with RS232 interface, and
Acton-written scan control software. The controller is programmed with all the instrument scan functions
displayed as convenient menu items, with simple keystrokes enabling any of the scan
functions to be performed.
The controller is connected to the SP-750i through the standard RS232 port with the cable provided.
It is designed to send commands and receive information about the specific SP-750i it is attached to,
therefore a single controller can be used with many different instruments (one at a time, however).
When the power is switched OFF and then ON again to the SP-750i and the controller, the SP-750i
will re-initialize. If the controller power is switched OFF then ON again, and the SP-750i power is left
ON, then the controller will return to the last menu selected.
Operation of the Controller with the SP-750i:
With the controller connected to the SP-750i, turn the power ON to both components. After the
SP-750i initializes, the following menu should be displayed:
If the above menu does not appear (for example, if the controller was operated in the calculator mode),
press the RIGHT FUNCTION KEY (➦), followed by the LIBRARY key, then select SP300. When the above
menu is displayed, press the white key below the SP300 function to begin operation (see Appendices Section
for use of the "UTILIT” functions). The following menu will be shown:
10
Battery Power Management Feature:
If the controller is not used for a few minutes, the LCD screen will turn off to save
battery power. If this happens, simply press the ON button to return to the menu you
were using.
UTILIT
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SP300