ILX Lightwave LDT-5525 User Manual page 27

d. Check the setting of the SENSOR SELECT switch for the desired operation (10 µA or 100 µA). The sensor
code will be displayed for two seconds during the power-up sequence (see Section 2.3).
e. Press the PARAMETER switch and check the setting of I LIMIT, T LIMIT, and GAIN. Press the CAL
switch and check the setting of C1 and C2 to insure that they are compatible with the equipment you are
using. Refer to Section 2.4.5 if you need to change them.
f. Press the DISPLAY switch until the VIEW SET indicator is lit and check the set point resistance. If it
requires changing, turn the knob until the desired value is displayed.
g. Turn the TEC output on by pressing the OUTPUT ON switch. The unit will automatically control the
thermistor to the set point resistance.
If the exact resistance is unknown (to control to a desired temperature), press the DISPLAY switch to view
the measured temperature. Readjust the resistance set point and recheck the temperature until the desired
result is attained.
NOTE: In some cases, a greater than 0.1 °C temperature set point resolution may be attained by using R
mode with the appropriate resistance value.
NOTE: If the mode is switched from R mode to T mode, the resistance set point will be lost. This is
becaused in T mode, the temperature set point is converted and also stored as a resistance set point
automatically.
h. When the unit is powered off, the state of the unit at power-down is saved in non-volatile memory.
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