ILX Lightwave LDC-3700B Series - Page 122

COMMAND REFERENCE
Command Reference
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CHAPTER 4
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The TEC:SENsor? query is used to read back the SENSOR SELECT switch position value. This
value is a coded representation of the sensor type/thermistor sensor current.
−where the response of 1 = thermistor, at 100 µA; 2=thermistor, at 10 µA; 3=LM335 sensor;
4=AD590 sensor; 5 = RTD. Note, the RTD switch position is no longer used. However, the instru−
ment will still report "5" if the SENSOR SELECT switch is in that position.
Notes The sensor code is displayed on the TEC display, and bit 8 of the TEC event register is set,
whenever the back panel SENSOR SELECT switch position is changed.
The sensor selection must be made locally at the back panel SENSOR SELECT switch.
If the response is 0, the sensor type is undetermined and a hardware error must exist.
Examples "TEC:Sensor?" −response: 1, means the SENSOR SELECT switch is in the 100 µA thermistor posi−
tion.
"Tec:SEN?" −response: 3, means the LM335 sensor is selected by the back panel SENSOR
SELECT switch.
The TEC:SET:ITE? query returns the TEC constant TE current set point value.
Notes The TEC output is controlled to this set point value only when constant ITE mode is in effect.
Examples "TEC:SET:ITE?" −response: 3.0, means the ITE set point is 3.000 amps.
"Tec:Set:Ite?" −response: 4.0, means the ITE set point is 4.000 amps.
The TEC:SET:R? query returns the TEC’s constant thermistor resistance or linear sensor reference
set point value.
Notes The TEC output is controlled to this set point value only when constant R mode is in effect.
Examples "TEC:SET:R?" −response: 3.4, means the R set point is 3.400 kΩ, or 3.40 µA, or 3.4 mV, depending
on the SENSOR SELECT switch position.
"Tec:Set:R?" −response: 4.0, means the R set point is 4.000 kΩ, or 4.00 µA, or 4.0 mV, depending
on the SENSOR SELECT switch position.
The TEC:SET:T? query returns the TEC constant temperature set point value, in °C.
Notes The TEC output is controlled to this set point value only when constant T mode is in effect.
Examples "TEC:SET:T?" −response: 33.4, means the constant T set point is 33.4°C.
"Tec:Set:t?" −response: −4.0, means the constant T set point is −4.0 °C.
TEC:SENsor?
COMMON
DEVICE DEPENDENT
FRONT PANEL
TEC:SET:ITE?
COMMON
DEVICE DEPENDENT
FRONT PANEL
TEC:SET:R?
COMMON
DEVICE DEPENDENT
FRONT PANEL
TEC:SET:T?
COMMON
DEVICE DEPENDENT
FRONT PANEL
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