Quantum Instruments Cascade Laser Starter Kit User Manual Page 44
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Starter Kit Instruction Manual Maintenance 43
8.4 Calibaration procedures
8.4.1 TPG128 calibration
Generalities
The present section describes procedure to be c ar-
ried out for particular calibration of the TPG128.
Before beginning
[1] Switch the instrument OFF.
[2] Remove the cover (1).
[3] Switch the instrument ON.
! WARNING ! Keep in mind that dur-
ing the calibration, the instrument is alive
(powered on)
Needed material
• 1 set of screwdriver.
• 1 oscilloscope.
• 1 voltmeter.
Procedure calibration
The generator should be calibrated as followed:
[1] Verify the +5 V supply.
[2] During the firs t test, set all potentiometers
and adjustable capacitors to their medium val-
ues.
[3] Adjust to the potentiometer 50 ns adj
(3) in order to obtain a 500 ns long pulse on
TP2 (2).
[4] Connect an oscilloscope allowing the mea-
surement of the signal’s period on the output
Trig out.
T
P
G
1
2
8
−
T
T
L
P
u
l
se
G
e
n
e
r
a
t
o
r
O
F
F
O
N
P
o
w
e
r
0
.
2
t
o
2
.
2
m
s
0
.
5
t
o
1
0
.
5
m
s
5
t
o
1
0
5
m
s
0
t
o
2
0
0
n
s
−
−
−
−
−
−
−
−
−
P
e
r
i
o
d
−
−
−
−
−
−
−
−
−
−
D
u
r
a
t
i
o
n
−
G
a
t
e
I
N
T
r
i
g
O
U
T
O
u
t
1
O
u
t
2
5
0
o
h
m
s
5
0
o
h
m
s
1
5
0
o
h
m
s
ma
x
6
0
m
A
+
1
2
V
0
V
Fig.33: Removing the top cover
2
3
Fig.34: TPG128 main board
- Quantum Cascade Laser 1
- Starter Kit 1
- Contents 2
- Identification 5
- Chapter 2 6
- 2.4 Glossary 7
- 2.5 Typographic c onventions 8
- Safety Instructions 11
- 3.4 Environmental conditions 12
- 3.5 Compliance and informa 12
- Description 13
- Fig.3: ST submount 14
- Fig.4: NS submount 14
- 4.3.3 Specifications 15
- 4.3.4 Electrical model 16
- 4.4.1 Description 17
- 4.4.2 Specifications 18
- 4.4.4 Measurement connection 20
- 4.5.1 Description 21
- 4.5.2 Specifications 21
- 4.6.1 Generalities 22
- 4.6.2 Measured voltages 22
- 4.6.3 Timing data 22
- 4.6.4 Laser peak current 23
- 4.6.5 Laser peak voltage 24
- 4.6.6 Average dissipation 24
- 4.6.7 Accuracy considerations 24
- 4.7.1 Description 25
- 4.7.2 Specifications 25
- 4.8.1 Description 26
- 4.8.2 Specifications 26
- Installation 27
- Fig.14:TCU151 rear panel 28
- 5.5.1 Before beginning 29
- 5.5.2 Procedure 29
- Power supply 12V 30
- Chapter 6 31
- Fig.21: Starting the TCU151 33
- Fig.23: Starting the TPG128 34
- 6.5 Interlock utilisation 35
- Troubleshooting 36
- Maintenance 38
- Fig.26: Removing the laser 39
- Fig.27: Replacing the laser 40
- Fig.29: Exchanging the laser 41
- 8.3 TCU151 temperature c on 43
- Fig.34: TPG128 main board 44
- Fig.35: TPG128 main board 45
- Fig.36: TPG128 main board 46
- Fig.38: TCU151 main board 47
- Fig.39: TCU 151 main board 48
- Fig.40: TCU151 front panel 48
- Fig.41: TCU 151 main board 49
- Fig.42: TCU 151 main board 50
- Fig.43: TCU 151 main board 50
- Fig.44: TC51 front panel 50
- Fig.45: TCU 151 main board 51
- Fig.46: TCU 151 main board 51
- Fig.47: TCU 151 main board 52
- Fig.48: TCU 151 front panel 52
- Fig.49: TCU 151 front panel 53
- Fig.50:TCU151 rear panel 53
- Application notes 54
- 9.1.3 Photoacoustic detection 55
- Appendix 56
- 10.1.3 Specifications 57
- 10.1.4 Utilisation 57
- 10.2 Unpacking NS laser from 60
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