© 2015 Thorlabs
3 Operating Instruction
11
3.1.2 Connecting the TEC element
Connect the thermoelectric cooler between pin 5, 6, 7 (TEC anode) and pin 13, 14, 15 (TEC
cathode) of the
.
Attention
A mispoled TEC element may lead to thermal runaway and destruction of the connected
components.
Check the TEC polarity
·
Turn on the Temperature Controller TED200C
·
Connect the temperature sensor to the jack "TE OUTPUT" (R5)
(refer to "
Connecting a temperature sensor
").
·
Select the appropriate sensor type with the key (F25).
·
Select a suitable current limit "I
LIM
" for the TEC element
(refer to “
").
·
Switch the display to "T
SET
" and set the desired set temperature using the tuning knob.
·
By pressing the key "ON" switch on the TED200C output current. The LED "ON" (F8)
lights up.
·
Switch the LED display to "T
ACT
".
If the TEC module is connected with correct polarity, the difference between the set
temperature "T
SET
" and the actual temperature "T
ACT
"
will decrease. If the control loop
parameters are set well (see section
Adjusting Temperature Control Loop
), the actual
temperature approximates the set temperature within a short time.
If the TEC module is connected with wrong polarity, the difference between set temperature
and actual temperature will increase continuously. Switch off the TEC current by pressing key
"ON" (F9) and change the TEC module wiring at the D-SUB plug connected to the jack “TE
OUTPUT” (R5).
3.1.3 Control LED for TEC ON mode
If a LED is connected between pin 1 and pin 8 as shown to the
left, this LED lights up when the TEC current output is switched
on.
10
12
15
16
