© 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 Bval 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 T
SET
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 "T
SET
" (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 (A
GND
) 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.
