© 2015 Thorlabs
3 Operating Instruction
13
with: R
0
: Thermistor nominal resistance at temperature T
0
T
0
: Nominal temperature (usually 298.15 K = 25°C)
B
val
Energy constant
For R
0
and B
val
please refer to the data sheet of the thermistor; T and T
0
are given in K (Kelvin)
If using a thermistor, the resistance for a given temperature TSET T
0
must be calculated first. If
the thermistor characteristic R(T) is given in the data sheet, the thermistor resistance can be
read directly. Then select "TSET" (key F18 or F19) to display the resistance set value. Adjust the
value using the tuning knob (F10).
AD 590/AD 592 Temperature sensor
AD590/592 are IC transducer type temperature sensors that
produce an output current linearly proportional to the absolute
temperature.
These devices act as current source, delivering 1µA/K within a
wide supply voltage range. They are calibrated to 298.2µA output
current at 298.2K (25°C).
An AD590/592 is connected between pin 10 (-) and pin 11 (+) of
the 15-pin D-SUB jack "TE OUTPUT" (R5)
The accuracy of the displayed temperature depends on the
tolerance of the used transducer.
LM135/LM335 Temperature sensor
The LMx35 Temperature Transducer Sensors operate as a zener
diode (inverse current direction) with a breakdown voltage linearly
proportional to absolute temperature at +10 mV/K. They operate
over a current range of 400 µ A to 5 mA.
A LM135/LM335 is connected to pin 10 (+), pin 11 (also +) and pin
8 (AGND) of the 15-pin D-SUB jack "TE OUTPUT" (R5) at the rear
of the unit.
The accuracy of the displayed temperature depends on the
tolerance of the used transducer.
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