HAMAMATSU L2D2 Service Manual

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PATENTS

L2D2

LAMPS

DEUTERIUM LAMPS

The best light source is supported by the best electrode technology.

APPLICATIONS

UV-VIS Spectrophotometers

CE(Capillary Electrophoresis)

SOx/NOx Analyzers

Film Thickness Measurement

HPLC

Atomic Absorption Spectrophotometers

Thin Layer Chromatography

TLSOF0138

having a conventional all

LESS MOVEMENT

OF ARC

EMISSION POINT

RELATIVE INTENSITY(A.U.)

0.5

0

Since the ceramic structure has a small thermal

expansion coefficient, there is virtually no move-

ment of the arc emission point during operation.

190

210 230 250 270 290 310 330 350 370 390

WAVELENGTH (nm)

1.5

1

metal structure.

2.5

2

CONVENTIONAL

LAMPS

The spacing between elec-

trodes is kept fixed by a

molded ceramic spacer.

This reduces the lamp to

lamp variations in the light

output to one half of that

obtained with our lamps

■ Intensity Variation

3.5

3

4

TLSOB0053EA

L2D2 LAMPS

series lamps even offer

light output 1.1 times higher

than conventional lamps.

SMALL INTENSITY VARIATIONS : 1/2

Compared to our conventional lamps

LIGHT INTENSITY (A.U.)

0

190

210

230

WAVELENGTH(nm)

250

270

290

310

330

1

TYPE

CONVENTIONAL

2

3

1.3 TIMES HIGHER

4

L2D2LAMP L2-2000 SERIES

350

370

390

TLSOB0052EA

(mA dc)

Current

Anode

300±30

300±30

(mA dc)

Current

Anode

10 V/7.0 V

12 V to 15 V/0 V

2.5 V/1.0 V

2.5 V/1.7 V

10 V/2.5 V to 6.0 V

Voltage

(V dc)

Drop

Typ.

NOTE

(%/ h)

*
We recommend using Hamamatsu deuterium lamp power supplies in order to obtain the full performance from our lamps (Refer to page 7 and 9).

F

G

H

power to keep the filament heated.

Recommended operating voltage is 3.5 V ± 0.5 V.

I

Average operating life : Operating life depends on environmental conditions (vacuum atmosphere). It is recommended that these lamps be used in an oil-free environment.

n these lamps, discharge current is allowed to flow into the filament during operation so that cathode temperature is maintained at an optimum level. So there is no need for input of external

±0.3

Max.

Drift

Fluctuation

Max.

0.05

2.5±0.25

(p-p)

(%)

(V dc, ac)

Voltage

Tube

Output Stability

10±1

—

—

80

2.5±0.25

85

12 to 15

±0.3

0.05

80

80

±0.3

(V dc)

(%/ h)

Typ.

Max.

Drop

Drift

Tube

Output Stability

eliminates loss of light amount caused by the half mirror.

Voltage

Fluctuation

Max.

(%)

(V dc, ac)

2.5±0.25

(p-p)

Voltage

0.05

3.0±0.3

10±1

2.5±0.25

3.0±0.3

1.7±0.2

3.3

L1886

—

L7174

L7306

4

20

1.0±0.1

1.8

2000

L1887

—

L6999-50

L7307

(A dc, ac)

(s)

(V dc)

(A dc)

(h)

—

L6999

Warm-up

Current

Max.

Time

Min.

Filament Ratings

0.8
4

2.5 to 6.0

Voltage

1.0±0.1

Operating

F

Current

Max.

0.3 to 0.6

1.8

Guaranteed

Life

DE

Conventional

Lamps

Type.

No.

2000

H

L879-01

L879

L7293

L7292

L4510-50

L6312-50

0.5 to 0.55

1.210±1

20

7.0±0.5

00

G

1

G

2000

L4505-50

L4510

L6311-50

L6312

L2526

L4505

L6310

L6311

L1626

L2541

L7295

L6309

L2196

—

L7296-50

L7296

0.8

2.5 to 6.0

F

0.3 to 0.6

L3382-01

L591

—

L6306

L6307

L6308

5

0 to 1

0 to1.8

L3381-01

L1729

L6304

L6305

4

1.7±0.2

3.3

L613,L613-04

L1636

—

L6302

L7298

L6303

1.0±0.1

1.8

—

L6301

5

0 to 1

0 to1.8

L3382-01

L6566

C

(A dc, ac)

Current

Typ.

4

Time

Min.

(s)

20

Voltage

1.0±0.1
(V dc)

Current

(A dc)

Typ.

1.8

4000

(h)

L613,L613-04

L6565

No.

Warm-up

Filament Ratings

Operating

Guaranteed

Life

D

Conventional

Lamps

E

Type.

SEE-THROUGH

L2D2 LAMP

LENS

LAMP

TLSOC0011EF

HALOGEN