Newport LDC-3706 Series - Page 82

December 2019 70 LDC-3706 Series Laser Controller
CALCulate:TRANsform:TEMPerature:SHHart:A <nrf> TEC
CALCulate:TRANsform:TEMPerature:SHHart:A
?
Description Sets/Returns Steinhart-Hart parameter C1 for a thermistor temperature transducer.
Parameters -9.9999 – 9.9999 – The first parameter of the Steinhart-Hart equation multiplied by 10
-3
.
Notes The Steinhart-Hart equation:


= 1 −2 ∙ln
󰇛
R
󰇜
+C3∙ln

󰇛
R
󰇜
Where  is the resistance at temperature .
Reset Value 1.125
Example CALC:TRAN:TEMP:SHH:A 1.125; Sets C1 to 1.125 x 10
-3
.
CALCulate:TRANsform:TEMPerature:SHHart:B <nrf> TEC
CALCulate:TRANsform:TEMPerature:SHHart:B?
Description Sets/Returns Steinhart-Hart parameter C2 for a thermistor temperature transducer.
Parameters -9.9999 – 9.9999 – The second parameter of the Steinhart-Hart equation multiplied by 10
-4
.
Notes The Steinhart-Hart equation:


= 1 −2 ∙ln
󰇛
R
󰇜
+C3∙ln

󰇛
R
󰇜
Where  is the resistance at temperature .
Reset Value 2.347
Example CALC:TRAN:TEMP:SHH:B 2.347; Sets C2 to 2.347 x 10
-4
.
CALCulate:TRANsform:TEMPerature:SHHart:C <nrf> TEC
CALCulate:TRANsform:TEMPerature:SHHart:C?
Description Sets/Returns Steinhart-Hart parameters C3 for a thermistor temperature transducer.
Parameters -9.9999 – 9.9999 – The third parameter of the Steinhart-Hart equation multiplied by 10
-7
.
Notes The Steinhart-Hart equation:


= 1 −2 ∙ln
󰇛
R
󰇜
+C3∙ln

󰇛
R
󰇜
Where  is the resistance at temperature .
Reset Value 0.855
Example CALC:TRAN:TEMP:SHH:C 0.855; Sets C3 to 0.855 x 10
-7
.
CALibrate:CURR100UA:STARt TEC
Description Begins the 100 µA thermistor calibration procedure.
CALibrate:CURR100UA:DATA <nrf> TEC
Description Send data point for the 100 µA thermistor calibration procedure.
Parameters DATA – a number representing the actual current in Amps
Example CAL:CURR100UA:DATA 0.01; Sends a data point of 0.01A.