ILX Lightwave LDC-3700 Series User Manual

2.9 TEC PARAMETER Section
The (ADJUST) TEC mode indicator must be lit (TEC mode selected) before adjusting the TEC PARAMETER
\.allies
The following sections describe the fimction and form of each of the parameters whch may be adjusted from the
unit's front panel. Refer to Figure
2.1.
2.9.1 TEC PARAMETER SELECT
The (PARAMETER) SELECT switch is used to enter SELECT mode. While the ADJUST
TEC mode is engaged
(indicator lit), press the (PARAMETER) SELECT switch to enter this mode.
When the SELECT mode is first entered, the
LIM IE indicator becomes lit, and the unit displays the current limit
\due.
111 Amps. All indicators in the TEC DISPLAY switch section are turned off. If the (PARAMETER)
SELECT snitch is released, this state continues for three seconds, after whch the instrument reverts to its former
state.
If the
(PARAMETER) SELECT switch is pressed repeatedly, successive parameter values are displayed, with the
appropriate parameter setup indicator LED being lit. The order of cycling through the parameter list is LIM ITE,
LIM THI. CONST (Cl, C2, and C3), GAIN, then back to LIM I=, and so on. While the CONST parameters are
selected. the corresponding CONST number
(1, 2, or 3) is indicated on the bar graph display.
2.9.2 TEC PARAMETER SET
The (PARAMETER) SET switch-is used to enter SET mode, where parameter values are stored into non-volatile
memo?
If the (PARAMETER) SET snitch is pressed while the unit is in SELECT mode, the unit will enter SET mode.
While the (PARAMETER) SET switch is held in, the selected parameter value can be change
by rotating the
ADJUST knob. The new \,due is stored in non-volatile memory when the (PARAMETER) SET switch is released.
The LIhZ ITE function limits the TEC output current so that the unit does not provide more current than your
de\.ice can safely handle. During operation, when the TEC current limit is reached, the TE CURRENT LIMIT
error indicator \\ill flash.
If the GPIB option is installed. the TE current limit condition may be used to shut the TEC output off via the
TEC. EN.4Ble:OUTOFF command.
To read the current limit, press the (PARAMETER) SELECT switch until the LIM
ITE indicator is lit. If the LIM
ITE ~,alue is to be changed, press and hold in the (PARAMETER) SET switch, turn the ADJUST knob until the
desired
\,slue is displayed, then release the SET switch. When the SET switch is released, the new value will be
stored in non-volatile memory. The TEC current limit is displayed in Amps.
When
the TEC output is on. the bar graph display will indicate the level of I= current, as a percentage of the LIM
ITE \ due
2.9.1 LIM THI
The Llhl THI function sets the maximum TEC output temperature, in
OC. During operation, when this limit is
renchcd. the TEkIP LIMIT error indicator will flash. Normally. this limit will cause the TEC output to
be shut off,
unless this abilit!. is disabled remotely via the TEC:ENABle:OUTOFF command.
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ILX Lightwave LDC-3700 Series Specifications

General

Brand	ILX Lightwave
Model	LDC-3700 Series
Category	Controller
Language	English