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L2D2 Lamp

Features
●Long life: 4000 h (L6565)
●High stability: 0.005 %(p-p) typ.
●Small intensity variations
●Low cost
●Error-free lighting

 

SPECIFICATIONS

Type No.

Type

Window material

Spectral distribution
(nm)

Aperture diameter
(mm)

Output stability at 230 nm

Guaranteed life at 230 nm
(h)

Required discharge starting voltage Max.
(V dc)

Anode current
(mA dc)

Tube voltage
Typ.
(V dc)

Drift
Max.
(%/ h)

Fluctuation
(p-p)
Typ. (%)

L6565

Standard

UV glass

185 to 400

1

±0.3

0.005

4000

350

300 ± 30

80

L6301

0.5

2000

400

L6301-50

L6303

L12313

L12313-50

L6307

L6309

L7296

Synthetic
silica

160 to 400

L7296-50

L12307

UV glass

185 to 400

L7293

MgF2

115 to 400

1

2000

350

L7293-50

L6999

See-through

UV glass

185 to 400

0.5

±0.3

0.005

2000

400

L6999-50

L9030

Synthetic
silica

160 to 400

L9030-50

 

Type No.

Filament ratings

Filament
warm-up time
Min.
(s)

Applicable power supply

Bulb wall
temperature

Warm-up

Operating

AC
input type

DC
input time

Voltage
(V dc, ac)

Current
Typ.
(A dc, ac)

Voltage
(V dc)

Current
Typ.
(A dc)

L6565

2.5 ± 0.25

4

1.0 ± 0.1

1.8

20

C9598-2510

M9596-2510

245 to 290

L6301

L6301-50

L6303

1.7 ± 0.2

3.3

C9598-2517

M9596-2517

L12313

3

5

0 to 1

0 to 1.8

C9598-3000

M9596-3000

L12313-50

L6307

10 ± 1

0.8

2.5 to 6.0

0.3 to 0.6

C9598-1035

M9596-1035

L6309

1.2

7.0 ± 0.5

1

C9598-1070

M9596-1070

L7296

L7296-50

L12307

12 to 15

0.5 to 0.55

0

0

C9598-1555

M9596-1555

L7293

2.5 ± 0.25

4

1.0 ± 0.1

1.8

C9598-2510

M9596-2510

L7293-50

L6999

L6999-50

L9030

L9030-50

 

Characteristics
◎ Spectral distribution
Deuterium lamps emit high intensity light in the UV range at wavelengths shorter than 400 nm. Light intensity on the short wavelength side is deter- mined by the window material used
◎ Arc distribution
Arc distribution of deuterium lamps is determined by the aperture (light exit) size. At the same input current and voltage, lamps with a 0.5 mm aperture provide 1.4 times higher intensity than lamps with a 1.0 mm diameter aperture.
 

 

POWER SUPPLY
Applications using L2D2 lamps require a very stable light output, so using a Hamamatsu dedicated power supply is recommended to operate these lamps.
Our dedicated power supplies use a constant-current circuit and constant-voltage circuit that deliver stable and reliable lamp ignition. Two types of power supplies are available: AC input (100 V to 240 V) type C9598 and 24 V dc input type M9596. Please select the power supply that matches your application.

 

SPECIFICATIONS (Characteristics are measured at 25 °C ± 1 °C after 30 min of warming up.)

Parameter

C9598

M9596

Unit

Input

Input Voltage

AC100 V to AC240 V
(100 V/200 V Auto Switching)
Single Phase 50 Hz/60 Hz

DC24 V ± DC2.4 V

Input Current (Max.)

0.9

2

A

Output

Output Voltage (DC)

With Load (Typ.)

80

V

Without Load (Min.)

200

V

Output Current (DC)

300 ± 30

mA

Current Fluctuation (p-p) (Typ.)

0.005

%

Current Drift at +25 °C (Typ.)

±0.02

%/h

Warm-up Time

Approx. 20

s

Trigger Voltage

Approx. 600

V peak

Cooling Method

0.3 m3/min of Forced Air Cooling

Operation Ambient Temperature

0 to +40

°C

Storage Temperature

-10 to +60

°C

Operating and Storage Humidity

Below 80 (No condensation)

%

Weight

Approx. 1.8

Approx. 0.18

kg

Conformance Standards

EN (CE Marking)

Yes

Yes

UL (File No. E249677)

No

Yes

 

FILAMENT RATINGS

Type No.

Warm-up

Operation

Applicable Lamps

Voltage (V dc)

Current (A dc) (Typ.)

Voltage (V dc)

Current (A dc) (Typ.)

C9598/M9596-2510

2.5 ± 0.2

4

1 ± 0.1

1.8

L6565, L7293, L6999, L6999-50, L7293-50
L6301, L6301-50, L9030, L9030-50

C9598/M9596-2517

2.5 ± 0.2

4

1.7 ± 0.2

3.3

L6303

C9598/M9596-3000

3 ± 0.2

5

0

0

L12313

C9598/M9596-1035

10 ± 0.5

0.8

3.5 ± 0.2

0.3

L6307

C9598/M9596-1070

10 ± 0.5

1.2

7 ± 0.4

1

L7296, L6309, L7296-50

C9598/M9596-1555

13.5 ± 0.7

0.5

5.25 ± 0.25

0.3

L12307

 

LAMP HOUSING
These lamp housings are designed for Hamamatsu L2D2 lamps with a mounting flange. Despite being low cost and compact, these lamp housings also function as efficient heat radiator housings to allow stable L2D2 lamp operation.
The window and mounting surface of these lamp housings are finish-machined and have tapped holes, making it easier to install them in equipment.
These lamp housings are ideal for designing photometric equipment that uses L2D2 lamps.
E9522: For L6301-50
E9558: For L7296-50
 
 
 
 
 
 
 
 

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