Quantum Instruments Cascade Laser Starter Kit manual Threshold on, → The red LED 1 should turn off

Starter Kit Instruction Manual

Maintenance

52

Miscellaneous functions testing Temperature

limit testing

[37] Decrease the temperature limit threshold

from 0.7 V to 0.3 V.

Note: For more details, see Temperature limit

threshold on page 50.

[38] Increase the temperature reference to 35

◦C.

,→ When the threshold is overpassed, the red

LED (1) in front panel should lit.

Al

[39] Wait the real temperature drops 10

◦

C

a

e

r

m

m

Re

Re

pe

S

TCU151r

s

al

at

et

et

￿

R

u

ti

C

r

below the threshold.

Ex

n

e

e

g

￿

al

C

t

I

ern

C

ont

al

r

oll

S

e

r

et

ti

n

g

[40] Reset the instrument with the RESET

Int

+I

S

er

n

et

al

ti

button (2).

n

g

−I

,→ The red LED (1) should turn off.

1

+

[41] Reset the temperature limit threshold to

2

−

0.7 V.

3

Note: For more details, see Temperature limit

4

threshold on page 50.

Monitoring

Fig.49: TCU151 front panel

[42]Check the output voltage on the rear in- strument BNC connector (5).

Note: For 35 ◦C, the voltage should be 350 mV.

External reference

[43]Plug an external power supply to the Ex- ternal Reference BNC connector (6).

[44]Set the voltage to 3.5 V.

[45]Set the switch External/Internal (3) to External.

[46]Set the selector (4) to mode Setting ◦C.

,→ The temperature displayed (2) should be 035 ◦C.

[47] Set the selector (4) to mode Real ◦C.

,→ The temperature displayed (2) should fol- low the reference temperature.

M

O

NI

1

T

0

O

m

RI

V/￿

N

G

C

M

U

T

a

P

x:

U

T

15

V/6

A

:

2

0

0 o

h

E

m

xt

1

er

n

0

al

R

0

m

USE

V/

ef.

FUSEONLY

V04

2−022

￿

DUNI

S /EWIT

C

ES

QUE

MP H

25

11

F

ME

LOY 0V

0−12USI0

BLENT AVER

V

S DE EC

250v

1

Mo

h

0

m

1

rl

oc

ki

n

g

5

6

Fig.50:TCU151 rear panel