Mode Section - ILX Lightwave LDT-5900 Series User Manual

O P E R A T I O N S
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C H A P T E R
Front Pa nel Opera t ion
RECALL
The Recall function is used to return the LDT-5900 to a previously defined state or
configuration. To recall a saved configuration (or unconfigured bin) of the LDT-
5900, select the Recall parameter from the SAVE / RECALL menu. Using the
knob, adjust the value to the desired configuration bin number. Press the ENTER /
LOCK key to recall the saved user settings. After the recall is completed, the LDT-
5900 will immediately be configured to the desired settings. However, the
OUTPUT will be turned off.
When the LDT-5900 is manufactured, all of the usable recall bins are initialized to
the default values. They will remain that way until the user performs a SAVE
operation on a particular bin.

Mode Section

The three important areas of the Mode section are the OUTPUT key, the SELECT
key and the mode indicators.
Mode Indicators
The OUTPUT key is used to turn the controller output current on or off. The
OUTPUT is off when the instrument is first powered up. It may also be shut off
automatically during operation if certain error or out of limit conditions occur. (See
Chapter 3, "Output Off Registers"). Turning OUTPUT on enables temperature (or
other mode) control of the TEC.
The SELECT key may be pressed repeatedly to cycle through the various modes.
The modes that can be selected here are constant temperature (T), constant
resistance (R ), constant current (I ), constant voltage (V ) and AC
SNSR TE TE
resistance mode (R ). Once a mode is selected, the setpoint for that mode is
AC
displayed for 10 seconds. If the setpoint is already at the desired value, the
setpoint entry menu can be exited by pressing either the up or down arrow key.
The setpoint for any mode can be modified by using the adjust knob and then
pressing the ENTER / LOCK key.
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