Wavelength Electronics LFI-3500 Series, User Manual

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Step 5: Set the HIGH or LOW Temperature Limit
See page 26 for this operation detail.
Step 6: Adjust the LIMIT Current
See page 25 for this operation detail.
Step 7: Adjust the Temperature Setpoint
Rotate the Display Select Switch to either the 10
µ
A or 100
µ
A position. The value
displayed will be the resistance of the RTD at ambient temperature. NOTE: Ignore
the decimal point on the 3½ digit display and the resistance of the RTD is
indicated in ohms.
RTD Display Setting
Press and hold the Display Set Button. Rotate the Adjust Potentiometer until the
desired setpoint resistance is displayed.
Step 8: Enable the Output Current
Press and release the Output On Button. The Output On LED will light green. For a
small load, the Limit Current LED will briefly light red. More current is required to
initially change the load temperature than to maintain it once it is cool.
OUTPUT
ON
BEEP