Owner manual

53
RUNNING EXPERIMENTS
Once you’ve created a program you’re ready to set up and perform your experiment.
Storing and Recalling Experiment Files
As mentioned earlier, an experiment file is a document which resides on your PC, containing all
of the logic, properties, and settings profiles for a particular experiment. Experiment files bear the
.trg extension.
To save an experiment, choose File>Save As. Name the file, then store it on your hard drive in
an accessible place.
To reuse an experiment file, choose File>Open, and locate the file. When you click OK, the
file’s settings will appear in timerPRO. Click Send Properties, then click Send Logic to
download the settings to the Model 725. You can also choose Program All Channels and
Program Logic from the Program menu.
To print a text summary of the settings in the current experiment, choose File>Print.
NOTE: Good file naming protocol will help your experiments go more smoothly. For
example, if you are saving multiple versions of a combustion experiment, store all files in
the same directory, with the names “combustion1.trg”, “combustion2.trg”, etc. Or, better
yet, use descriptive names such as “combust - 50us delay.trg”, “combust - 60us
delay.trg”, etc.
Front Panel Controls and Indicators
The front panel of the Model 725 is designed to help you run experiments without computer
control. This functionality allows you to program the unit at a workstation, then to move the unit
to the experimental environment.
Channel LEDs
As mentioned earlier, the LEDs for each channel provide information on each channel’s status:
1. A green light on a channel typically indicates that the channel is waiting for an input
trigger.