Starter Kit Instruction Manual Use 32
6.4 L aser utilisation6.4.1 Overview
In order to insure a correct use and and an appropri-
ate lifetime to the laser, it is recommended to pro-
ceed according a specific order as below:
•Start water flow to cool the LLH100.
•Turn on the temperature controller and set
the desired temperature.
•Start the pulse generator.
•Switch on the power supply.
6.4.2 Proceedings
To use the Quantum Cascade Laser, proceed as fol-
lows:
[1] Make sure that the laser has been installed
properly (see page 38.
[2] If available,turn on the water on the LLH100
module.
CAUTION ! If water is not available, check
the LLH100 module temperatureuntil desired
operating temperature is reached. The unit
has a reduced laser temperature range under
reducedheat sinking conditions. The unit may
become very hot, overheat and be destroyed.
A radiator and possibly a fan might be neces-
sary to increase the laser operating tempera-
ture range.
[3] Turn on the TCU151 instrument (6).
Note: Set the desired temperatureby first push-
ing the switch (3) to Setting ◦Cto display the
objective temperatureand turn the 5 turn knob
(1) to change it. Turning the switch (3) to
Real ◦C, the display shows the present tem-
perature.
Note: To remote controlt heLLH100 t empera-
ture, set the switch (5) to external and provide
a voltage on the External reference (7) from
-6.5V (-65 ◦C) to + 6.5V (+65 ◦C).
[4] Plug the banana cables into the powersup-
ply unit and set output voltage to zero and
the compliance current to 100mA if pulsing a
QCL.
TCU151
T
emperatureController
AlarmResetExternal
Internal
RealI
RealC
SettingC
Setting+I
Setting−
I
+−
1
2
3
5
4
Fig.21: Starting the TCU151
0
1
USEONL
YWITH250V
FUSES/EMPLOYER
UNIQUEMENTAVEC
DESFUSIBLESDE250v
110−
120V
220−
240V
UTPUT
Max:15V/6A
MONITORING
10mV/C
Zout:200ohm
ExternalRef.
100mV/C
Zin:1Mohm
Interlocking
6
7
Fig.22: TCU151 remote control