The motorized grating turret electronic controller is a PCB board found inside all Sciencetech motorized monochromators and spectrographs such as the 9055, 9056, 9057, 9040, 9150 and 9490 monochromators. It is the same stepper motor electronics controller as the external MD100, but without the external chassis or power supply. This product is for customers with an existing Sciencetech motorized monochromator who need to replace the main PCB board. This product does not include the power supply which must be purchased separately if that no longer works as well. Operating manual is included.

Compatibility with Prior Versions
Please note that the MD-100 has an internal ROM chip that interprets and executes the various ASCII commands that is sent to it from the SciSpec, SciLDA, or SciMono software residing on the computer. This MD-100 internal ROM chip has changed versions over the years and hence may not be backward compatible. For example, a customer has reported that the 2006 Sci-Spec software cannot be used to control an MD-100 manufactured in 1998 as its ROM chip is not compatible with the new software ASCII codes. The solution is to purchase a new MD-100 with the latest software.

Opto-Sensor Shut Off Control
The 2007 version of the MD100-i had been modified to include an internal opto-sensor end switch shut off feature which eliminates IR light pollution inside a monochromator or spectrograph during scanning. Sci-Spec, Sci-LDA, and Sci-Mono have also been updated to include this feature. Older generations of software would not be able to take advantage of this feature with the new MD100.

Technical Specifications

• Fusing: 1A, 115V, 60Hz
• Voltage: 115, 230, 100, 240 V (internally configured)