ILX Lightwave LDT-5525 User Manual page 29

During Booster operation, the normal ITE output is disabled, and the ITE display will measure about 0.0 Amps (±0.05
Amps). The CONTROL SIGNAL voltage is linearly proportional to the control current (1 V/A), which is limited by the
LIM I parameter. If LIM I is set to 4 Amps, the maximum CONTROL SIGNAL voltage will be approximately ±4 volts. If
a booster signal greater than ±4.0 volts is required, a user-supplied control signal amplifier is required. For example, if
the user's control signal amplifier has a gain of 2, an I LIMIT of 3 Amps would allow a control voltage of ±6 volts.
Whether or not a booster current source is used, the LDT-5525 Temperature Controller uses a sensor for controlling
the temperature.
The feedback loop GAIN may require adjustment when a booster current source is used. This is because a booster
current source may be used with different thermal loads than those found with normal LDT-5525 Temperature
Controller operation, and those loads may require larger or smaller GAIN values in order to settle to the set
temperatures in a desirable fashion. See Section 2.4.3 for setting the GAIN value.
Contact ILX Lightwave for more information on using the LDT-5525 with a booster current source.
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