15
Gain too high
Proper gain
Gain too low
Tset
Tstart
TIME
Figure 5: Gain Adjust Settings
To reduce overshoot the GAIN ADJUST screw must be turned counter
clockwise. Turn the output off using the OUTPUT switch and turn the
GAIN adjustment screw a small amount. Then turn the output back on
and monitor the output again. Repeat this procedure until the tempera-
ture ramps up to the set point in a satisfactory manner. When a system
is underdamped, having too low a gain, repeat the above procedure, but
increase the gain by turning the GAIN ADJUST screw in a clockwise
direction. If you have any questions on GAIN adjustment call Newport
Corporation and one of our applications engineers will assist you.
j) During the operation of the Model 300 Series Temperature Controller
any of the parameters may be displayed and the status of the Model 300
Series Temperature Controller may be monitored.
k) To monitor and record the temperature sensor output, a strip recorder
or an X-Y recorder may be connected to the ANALOG OUTPUT BNC
connector. The output gain of this monitoring output is printed next to
the BNC connector on the front panel.
Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com
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