HAMAMATSU L7820 Datasheet

NEW

Calibrated Deuterium Light Source
L7820

is a logo mark for an accreditation
system based on Japanese Meas­urement Law. Our Planning & Engi­neering Division is accredited in
accordance with ISO/IEC Guide 25:
1990 in the field of photometry cali­bration.
(Our accreditation number is 0081.)
[JCSS: Japan Calibration Service
System (The Japanese Goverment
accreditation scheme for calibration
laboratories and a signatory of
APLAC Mutual Recognition Arrange­ment)]

▲LEFT: LAMP HOUSING, RIGHT: POWER SUPPLY

FEATURES

■High Stability

Stability is one of the important characteristics of calibrated
light sources. Hamamatsu’s excellent electrode technology
and optimized lamp housing realize high stability and good
repeatability.

●Light Intensity Drift (Typ.)

TLSOB0065EA TLSOB0073EA

110
100

90
80
70
60
50
40
30

RELATIVE INTENSITY (%)

20
10

0

10 20

30 40 50 60 70 80 90 100 110

OPERATING TIME (h)

■High UV Power

Deuterium lamps have high output in the UV region, making
them ideal for UV wavelength calibration and other applica­tions requiring UV light sources.

●

Spectral Irradiance (Reference data)

: 50 cm away from the light source

0.1

)

-1

·nm

-2

0.01

SPECTRAL IRRADIANCE (µW·cm

0.001
200 250 300 350 400

WAVELENGTH (nm)

SPECIFICATIONS

Lamp
Input Wattage
Spectral Distribution
Calibrated Range

A

Type of Calibration
Calibration Unit
Stability

Fluctuation (p-p)

Drift
Window Material
(Lamp Housing)
Warm-up Time
Recommended Calibration

B

Period
Guaranteed Life

C

Deuterium Lamp
30 W
185 nm to 400 nm
250 nm to 400 nm
Spectral Irradiance

-2

-1

µW.cm

.

nm

0.05 % Max.
±0.3 %/h Max.
Synthetic Silica

10 min
100 hours or 1 year whichever
comes first
500 hours

Input Voltage
(switched manually)
Power Consumption

Cooling

Lamp Housing

Power Supply
Ambient Temperature
Humidity
Dimensions
(W × H × D)

Lamp Housing
Power Supply

D

Case
Lamp Housing

Weight

Power Supply

D

Case

100 V ac/115 V ac/200 V ac/230 V ac
(±10 %), 50 Hz/60 Hz
90 VA
Forced Air Cooling (cooling fan is included)
Not required
0 °C to 40 °C
30 % to 85 % (without condensation)
100 mm × 280 mm × 100 mm
200 mm × 107 mm × 240 mm
595 mm × 425 mm × 345 mm
Approx. 3.5 kg
Approx. 6.7 kg
Approx. 7.8 kg

NOTE: AThe calibrated value is the light power at 50 cm away from front surface of lamp housing.

BThis is the recommended calibration period when high reliability is required. Please contact to our sales office for re-calibration fee.
CThis is the guaranteed time the unit satisfies requirements as calibrated light source.
DThis is an accessory coming with the unit.

DIMENSIONAL OUTLINES (Unit: mm)

LAMP HOUSING POWER SUPPLY

COOLING FAN

M37 P=1

OUTPUT
WINDOW
( 25)

[FRONT VIEW]

280

140

SIDE COVER
MOUNTING
SCREW
4-M3
HEX SOCKET
HEAD BOLT

68

[SIDE VIEW]

SIDE COVER
(REMOVE
THIS COVER
WHEN
REPLACING
LAMP)

107 ± 2

CONNECTOR *

200 ± 2 240 ± 2

DEUTERIUM LAMP POWER SUPPLY

OUTPUT

MODEL L7820

POWER

ON

OFF

[FRONT VIEW] [SIDE VIEW] [REAR VIEW]

POWER

POWER

2A (100V, 118V)

AC INPUT
CONNECTOR

FILAMENT

2A

FILAMENT

5A

AC 100V

FILAMENTANODE

0.5A

10V

5

CONNECTOR *

78

100

[BOTTOM VIEW]

39

78

50

M4

4-M4
PLASTIC FEET ARE ATTACHED TO
THE BOTTOM OF THE UNIT BUT
CAN BE REMOVED TO USE THEIR
HOLES FOR INSTALLATION OF THE
LAMP HOUSING.

39

5 100

REFERENCE SURFACE
OF CALIBRATION

* The attached cable length to connect lamp housing with power supply is 2000 mm

TLSOA0072EA TLSOA0073EA

Subject to local technical requirements and regulations, availability of products included in this promotional material may vary. Please consult with our sales office.
Information furnished by HAMAMATSU is believed to be reliable. However, no responsibility is assumed for possible inaccuracies or omissions. Specifications are

subject to change without notice. No patent rights are granted to any of the circuits described herein. ©2001 Hamamatsu Photonics K.K

HOMEPAGE URL http://www.hamamatsu.com

HAMAMATSU PHOTONICS K.K., Electron Tube Center
314-5, Shimokanzo, Toyooka-village, Iwata-gun, Shizuoka-ken, 438-0193, Japan, Telephone: [phone], Fax: [phone]

U.S.A.:

Hamamatsu Corporation: 360 Foothill Road, P. O. Box 6910, Bridgewater. N.J. 08807-0910, U.S.A., Telephone: [phone], Fax: [phone] E-mail: [e-mail]

Germany:

Hamamatsu Photonics Deutschland GmbH: Arzbergerstr. 10, D-82211 Herrsching am Ammersee, Germany, Telephone: [phone], Fax: [phone] E-mail: [e-mail]

France:

Hamamatsu Photonics France S.A.R.L.: 8, Rue du Saule Trapu, Parc du Moulin de Massy, 91882 Massy Cedex, France, Telephone: [phone], Fax: [phone] E-mail: [e-mail]

United Kingdom:

North Europe:
Italy:

Hamamatsu Photonics UK Limited: 2 Howard Court, 10 Tewin Road Welwyn Garden City Hertfordshire AL7 1BW, United Kingdom, Telephone: [phone], Fax: [phone] E-mail: [e-mail]

Hamamatsu Photonics Norden AB: Smidesvägen 12, SE-171-41 SOLNA, Sweden, Telephone: [phone], Fax: [phone] E-mail: [e-mail]

Hamamatsu Photonics Italia: S.R.L.: Strada della Moia, 1/E, 20020 Arese, (Milano), Italy, Telephone: [phone], Fax: [phone] E-mail: [e-mail]

TLSO1044E01
FEB. 2001 IP
Printed in Japan(1000)