Princeton 4300 User Manual

 

55 

Previous chapters have discussed setting up the 

hardware and the software for basic operation. 

This chapter discusses topics associated with 

experiment synchronization (set up on the 

 tab in WinView and 

WinSpec).With the exception of Edge Trigger, the 

topics are addressed in order of their appearance 

on the Timing tab (see Figure 21).  

, the first topic, discusses 

standard Timing Modes, Shutter Control, and 

Edge Trigger. Also included under this topic is a 

discussion of the 

 connector, the input 

connector for a trigger pulse. 

, the second topic, 

discusses the Fast and the Safe speed modes. Fast 

is used for real-time data acquisition and Safe is 

used when coordinating acquisition with external 

devices or when the computer speed is not fast 

 

enough to keep pace with the acquisition rate. 

, the final topic, discusses the TTL IN/Out connector on the rear of the 

ST-133 and how commands can be sent via TTL levels to and from the ST-133. 

The chart to the right lists the timing mode 

combinations (selected on the

Setup|Timing 

tab). Use this chart in 

combination with the detailed descriptions in 

this chapter to determine the optimal timing 

configuration.  
The basic timing modes are Free Run, 

External Sync, and External Sync with 

Continuous Cleans.  These modes are 

combined with the Shutter options to provide 

the widest variety of timing modes for 

precision experiment synchronization. 

Free Run 

Normal 

External Sync 

Normal 

External Sync 

PreOpen 

External Sync with 

Continuous Cleans 

Normal 

External Sync with 

Continuous Cleans 

PreOpen 

The shutter options available include Normal, PreOpen, Disable Opened or Disable 

Closed. Disable simply means that the shutter will not operate during the experiment. 

Disable closed is useful for making dark charge measurements or when no shutter is 

present. PreOpen, available in the External Sync and External Sync with Continuous