DEUTERIUM LAMPS L2D2 LAMPS L2D2 Lamps (Deuterium Lamps) Long Life Deuterium Lamps The L2D2 lamps are deuterium lamps specifically developed for analytical instruments. These L2D2 lamps offer excellent features essential for light sources in analytical instruments such as long service life, high stability and high output. APPLICATIONS ●HPLC (High Performance Liquid Chromatography) ●UV-VIS Spectrophotometer ●CE (Capillary Electrophoresis) ●Atomic Absorption Spectrophotometer ●Thin Layer Chromatography ●Film Thickness Gauge ●Photoionization Light Source ●Semiconductor Testing Equipment ●Water Quality, Air Pollution and Other Environmental Analyzer ●UV Resistance Evaluation of Materials ●Static Electricity Removal by Vacuum UV Light LONG LIFE : 4000 HOURS ■ Life Characteristics The L2-4000 series lamps assure an operating life of 4000 hours. This is the longest operating life of any deuterium lamp. LIGHT OUTPUT (%) 100 50 L2D2 LA MP L2-2000 SERIES L2D2 LA M L2-4000 P SERIES 0 0 1000 2000 TIME (h ) 1 TLSOF0138 3000 4000 TLSOB0050EB HIGH STABILITY : ■ Light Output Stability Fluctuation 0.005 % (p-p) Typ. (Equivalent to 2 × 10-5 A.U.) Drift ±0.3 %/h By using a ceramic structure, a uniform and optimum temperature distribution, which are the most important factor for stable operation, can be obtained. TLSOB0095EA 20 ABS (10-5 A.U.) 15 10 5 0 -5 TLSOB0096EA -10 20 -15 0 100 200 300 400 500 600 TIME (s) 0h 2000 h 15 700 10 ABS (10-5 A.U.) -20 800 5 0 -5 -10 -15 -20 0 100 200 300 400 500 600 700 800 TIME (s) EXCELLENT TEMPERATURE CHARACTERISTICS Use of a ceramic structure with excellent thermal stability ensures stable lamp operation even in the presence of ambient temperature variations. SMALL INTENSITY VARIATIONS ■ Intensity Variation 4 Ceramic electrodes ensure a fixed distance between each electrode. This precise spacing minimizes variation in output light intensity from one lamp to another. TLSOB0053ED RELATIVE IRRADIANCE 3.5 3 Construction 2.5 CERAMIC ELECTRODE (REAR PIECE) 2 ANODE APERTURE 1.5 CERAMIC ELECTRODE (CENTER PIECE) 1 CATHODE CONSTANT 0.5 0 190 BULB 210 230 250 270 290 310 330 350 WAVELENGTH (nm) LESS MOVEMENT OF ARC EMISSION POINT 370 390 LIGHT OUTPUT TLSOC0030EB Since the ceramic structure has a small thermal expansion coefficient, there is virtually no movement of the arc emission point during operation. 2 L2D2 Lamps (Deuterium Lamps) SPECIFICATIONS SELECTION GUIDE Power Consumption Type Cathode Rating Series 2.5 V/1.0 V 3.0 V/0 V to 1 V 2.5 V/1.0 V 2.5 V/1.7 V 3.0 V/0 V to 1 V 10 V/2.5 V to 6.0 V 10 V/7.0 V 12 V to 15 V/0 V L2-4000 Standard L2-2000 30W See-through L2-2000 2.5 V/1.0 V SPECIFICATIONS STANDARD TYPE A Series L2-4000 L2-2000 DimenType No. sional Outline L6565 L6566 L6301 L6301-50 L6303 L6305 L6307 L6309 L7296 L7296-50 L6311 L6311-50 L7292 L7293 L7293-50 q w q o q w e e t u r i y y !0 B Window Material Output Stability at 230 nm Spectral Aperture Drift Distribution Diameter Max. (nm) (mm) (%/ h) UV glass 185 to 400 UV glass 185 to 400 C Required D FluctuDischarge ation Guaranteed Starting Voltage (p-p) Life Anode Current Tube Voltage Typ. (%) at 230 nm (h) Max. (V dc) (mA dc) Typ. (V dc) 300±30 80 300±30 80 Anode Current Tube Voltage (mA dc) Typ. (V dc) 300±30 80 1.0 ±0.3 0.005 4000 350 0.5 ±0.3 0.005 2000 400 Synthetic silica 160 to 400 UV glass 185 to 400 MgF2 115 to 400 1.0 — — E 2000 350 SEE-THROUGH TYPE A Series L2-2000 DimenType No. sional Outline L6999 L6999-50 L9030 L9030-50 q o t u B Window Material UV glass Output Stability at 230 nm FluctuSpectral Aperture Drift ation Distribution Diameter (p-p) Max. Typ. (nm) (%) (mm) (%/ h) D Required Guaranteed Discharge Starting Voltage Life Max. at 230 nm (h) (V dc) C 185 to 400 0.5 ±0.3 0.005 2000 400 Synthetic silica 160 to 400 NOTE: ASee pages 5 and 6. BLamps with a 0.5 mm aperture provide 1.4 times higher radiant intensity than lamps with a 1.0 mm aperture. (See page 8.) CLamp life end is defined as the point when light output at 230 nm falls to 50 % of its initial value or when output fluctuation exceeds 0.05 % (p-p). DA pulse voltage higher than this value must be supplied to start reliable lamp discharge. (See Figure 5 on page 9.) EOperating life may differ depending on environmental operating conditions (vacuum atmosphere). It is recommended that these lamps be used in an oil-free environment. 3 An Example for optics of See-through type SEE-THROUGH TYPE The see-through type electrode structure enables straight-line arrangement of the halogen lamp, deuterium lamp, optical system and optical passage. This simplifies optical design of UV-VIS spectrophotometer etc., and eliminates loss of light amount caused by the half mirror. TOP VIEW 40˚ LENS SEE-THROUGH L2D2 LAMP F Operating (V dc, ac) 2.5±0.25 3.0±0.3 Current Typ. (A dc, ac) 4 5 2.5±0.25 4 3.0±0.3 5 0.8 10±1 TLSOC0011EF Applicable Power Supply I Filament Ratings Warm-up Voltage Time Min. (s) 20 AC Input Type DC Input Type Lamp House (V dc) 1.0±0.1 0 to 1 Current Typ. (A dc) 1.8 0 to 1.8 C9598-2510 C9598-3000 M9596-2510 M9596-3000 — 1.0±0.1 1.8 C9598-2510 M9596-2510 — E9522 3.3 0 to 1.8 0.3 to 0.6 C9598-2517 C9598-3000 C9598-1035 M9596-2517 M9596-3000 M9596-1035 1 C9598-1070 M9596-1070 Voltage 1.7±0.2 0 to 1 2.5 to 6.0 G 1.2 20 7.0±0.5 — E9558 12 to 15 0.5 to 0.55 10±1 0.8 2.5±0.25 4 0 H 2.5 to 6.0 G H C9598-1555 M9596-1555 0.3 to 0.6 C9598-1035 M9596-1035 1.8 C9598-2510 M9596-2510 0 1.0±0.1 (V dc, ac) 2.5±0.25 F Current Typ. (A dc, ac) 4 — Type No. L6565 L6566 L6301 L6301-50 L6303 L6305 L6307 L6309 L7296 L7296-50 L6311 L6311-50 L7292 L7293 L7293-50 Applicable Power Supply I Filament Ratings Warm-up Voltage HALOGEN LAMP Operating Time Min. (s) 20 Voltage (V dc) 1.0±0.1 Current Typ. (A dc) 1.8 AC Input Type C9598-2510 DC Input Type M9596-2510 Lamp House Type No. — L6999 L6999-50 L9030 L9030-50 NOTE: FThe heater current during pre-heating is extremely high, so if the cable between the lamp and power supply is too long, the voltage supplied to the lamp will be too low due to a voltage drop in the cable. The power supply for the heater should be designed to supply the specified voltage at the lamp input terminal. GRecommended operating voltage is 3.5 V ± 0.5 V. HDuring lamp operation a discharge current flows into the filament so no external power supply is needed to maintain the filament temperature. IWe recommend using Hamamatsu dedicated power supplies in order to obtain full performance from our deuterium lamps. (See pages 7 and 9.) 4 L2D2 Lamps (Deuterium Lamps) DIMENSIONAL OUTLINES 42±2 80±2 30±1 42±2 42±2 7 MAX. 30±1 68±2 28±1 e L6307, L6309 68±2 7 MAX. w L6305, L6566 7 MAX. See-through Type q L6301, L6565, L6303, L6999 (Unit : mm) ARC POINT ARC POINT 160±10 160±10 160±10 ARC POINT CONNECTION 6 L6301, L6565, L6999 20 TLSOA0018EF TLSOA0041EE : BLUE : BLUE : RED See-through Type 7 MAX. 30±1 7 MAX. 14±1 6 L9030 FILAMENT FILAMENT ANODE 20 7 20 L7292 FILAMENT : BLUE FILAMENT.GND : BLACK ANODE : RED 7 20 7 FILAMENT : BLUE FILAMENT.GND : BLACK ANODE : RED TLSOA0039EF 68±2 CONNECTION L7296 6 160±10 160±10 160±10 CONNECTION CONNECTION FILAMENT : BLUE FILAMENT . GND : BLACK ANODE : RED 42±2 68±2 ARC POINT ARC POINT ARC POINT 30±1 50±1 42±2 42±2 60±2 30±1 7 MAX. y L7292, L7293 t L7296, L9030 15.0±0.5 r L6311 5 20 6 6 TLSOA0040ED 15.0±0.5 FILAMENT FILAMENT ANODE CONNECTION FILAMENT : BLUE FILAMENT.GND : BLACK ANODE : RED 7 7 20 CONNECTION FILAMENT : BLUE FILAMENT : BLUE ANODE : RED 7 L6303 FILAMENT : BLUE FILAMENT · GND : BLACK ANODE : RED 6 L7293 : BLUE : BLUE : RED TLSOA0017EG FILAMENT FILAMENT ANODE : BLUE : BLUE : RED TLSOA0011EE See-through Type u L7296-50, L9030-50 See-through Type o L6301-50, L6999-50 i L6311-50 - 0.05 - 0.05 3+0.020 23±0.1 23±0.1 160±5 68±2 2- 3.3 B +0.038 37.0±0.1 52.0±0.5 160±10 ARC POINT +0 22.0 - 0.1 +0.15 3 +0.05 50±1 22.0±0.1 22.0±0.1 37 60±2 22 15 15±0.5 5 15 B B A 42 ARC POINT 14±1 68±2 +0 22.0 - 0.1 2- 3.3 +0.038 3+0.020 ARC POINT 2- 3.3 LIGHT OUTPUT ARC POINT 160±10 30±1 15 5 ARC POINT 5.0±0.5 ARC POINT 7 MAX. 28±1 22.0±0.1 22.0±0.1 7 MAX. 30±1 23.0±0.05 7 MAX. 50±1 A 35.0 - 0.1 A 35.0 - 0.1 LIGHT OUTPUT +0.15 3 +0.05 LIGHT OUTPUT 7 20 Tolerance of emitting point (center) With respect to axial line A: ±0.1 With respect to plane B: ±0.1 7 L9030-50 FILAMENT : BLUE FILAMENT : BLUE ANODE : RED 20 6 FILAMENT : BLUE FILAMENT : BLUE ANODE : RED 6 Tolerance of emitting point (center) With respect to axial line A: ±0.1 With respect to plane B: ±0.1 TLSOA0075EE ANODE CERAMIC ELECTRODE (REAR PIECE) 50±1 7 MAX. A - 0.05 30±1 22.0±0.1 22.0±0.1 ARC POINT Precaution for use L7293-50 CATHODE APERTURE 0.5 +0 22.0 - 0.1 FLANGE TLSOA0052EC B 50±1 68±2 42 LAMP HOUSING LIGHT OUTPUT +0.15 3 +0.05 160±10 GOOD SEPARATED TYPE VACUUM SYSTEM 5 15 TLSOA0051ED CERAMIC ELECTRODE (CENTER PIECE) 2- 3.3 BAD UNIFIED TYPE Mounting example on the vacuum system (L7292, L7293, L7293-50) 15±0.5 LIGHT OUTPUT FLANGE 20 7 ARC POINT 6 SCREW PORTION Tolerance of emitting point (center) With respect to axial line A: ±0.1 With respect to plane B: ±0.1 TLSOA0088EC LAMP HOUSING 1 2 3 4 5 a b CONNECTION FILAMENT : BLUE FILAMENT : BLUE ANODE : RED Tolerance of emitting point (center) With respect to axial line A: ±0.1 With respect to plane B: ±0.1 40 ° 35.0 - 0.1 ARC POINT 6 TLSOA0050EC Cross section of see-through type !0 L7293-50 20 CONNECTION CONNECTION : BLUE FILAMENT FILAMENT.GND : BLACK ANODE : RED L7296-50 FILAMENT : BLUE FILAMENT·GND : BLACK ANODE : RED 7 CONNECTION 1VACUUM SIDE FLANGE 2TIGHTENING SCREW 3STOPPER 4O-RING (JIS B2401) CALL No. V15 15 mm I.D. 4 mm WIDTH 5SPACER aMgF2 WINDOW bGRADED SEAL TLSOC0010EB When the flange of L7293-50 is used as purpose of lamp cooling, vacuum system part should be separated from the lamp housing part. If vacuum system part is unified to lamp housing part and the lamp flange is fixed to the lamp housing, it may induce broken of lamp snout part. TLSOC0045EA 6 L2D2 Lamps (Deuterium Lamps) 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. Left: C9598, Right: M9596 SPECIFICATIONS (Characteristics are measured at 25 °C ± 1 °C after 30 min of warming up.) Parameter Input Input Voltage C9598 M9596 Unit 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 With Load (Typ.) Output Voltage (DC) Without Load (Min.) Output Current (DC) Output Current Fluctuation (p-p) (Typ.) Current Drift at +25 °C (Typ.) Warm-up Time Trigger Voltage Cooling Method Operation Ambient Temperature Storage Temperature Operating and Storage Humidity Weight EN (CE Marking) Conformance Standards UL (File No. E249677) 2 80 200 300 ± 30 0.005 ±0.02 Approx. 20 Approx. 600 0.3 m3/min of Forced Air Cooling — 0 to +40 -10 to +60 Below 80 (No condensation) Approx. 1.8 Approx. 0.18 Yes Yes No Yes A V V mA % %/h s V peak — °C °C % kg — — FILAMENT RATINGS Type No. Warm-up Voltage (V dc) Current (A dc) (Typ.) Operation Voltage (V dc) Current (A dc) (Typ.) C9598/M9596-2510 2.5 ± 0.2 4 1 ± 0.1 1.8 C9598/M9596-2517 C9598/M9596-3000 C9598/M9596-1035 C9598/M9596-1070 C9598/M9596-1555 2.5 ± 0.2 3 ± 0.2 10 ± 0.5 10 ± 0.5 13.5 ± 0.7 4 5 0.8 1.2 0.5 1.7 ± 0.2 0 3.5 ± 0.2 7 ± 0.4 5.25 ± 0.25 3.3 0 0.3 1 0.3 Applicable Lamps L6565, L7293, L6999, L6999-50, L7293-50 L6301, L6301-50, L9030, L9030-50 L6303 L6566, L6305 L6307, L7292 L7296, L6309, L7296-50 L6311, L6311-50 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 * Custom lamp housings for see-through type lamps (L6999-50, L9030-50) are also available. 7 Left: E9522, Right: E9558 TECHNICAL INFORMATION ■Spectral Distribution ■External View Deuterium lamps emit high intensity light in the UV range at wavelengths shorter than 400 nm. Light intensity on the short wavelength side is determined by the window material used. 1Non-projecting type (UV glass) 2Projecting type (Synthetic silica) 3Long-nose projecting type (MgF2) Figure 1: Spectral Distribution IRRADIANCE (µW·cm-2·nm-1 at 50 cm) 1.0 TLSOB0024EF SYNTHETIC SILICA (PROJECTING TYPE, 1 mm THICK) 0.1 TLSOF0139 1Non-projecting type uses the side of the cylindrical glass bulb as the light-emission window. This type allows effective use of emitted light since it requires less space and has wider directivity since there is no projection. 2Projecting type uses a flat glass attached to the tip of the projection on the bulb. 3Long-nose projecting type uses an MgF2 window and is ideal for vacuum ultraviolet applications. This type is used with the tip of the long-nose window inserted into vacuum equipment. UV GLASS 0.01 0.001 160 200 240 280 320 360 400 WAVELENGTH (nm) ■Directivity (Light Distribution) ■Window Material The following three types of window material are available for deuterium lamps. 1 UV glass 2 Synthetic silica 3 MgF2 Figure 2 shows the transmittance of various window materials. UV light at wavelengths shorter than 190 nm attenuates greatly due to its absorption by oxygen. To obtain the fullest performance in window transmittance, it is recommended that the inside of the equipment be filled with nitrogen or vacuum-evacuated to eliminate this absorption effect. Figure 2: Typical Transmittance of Various Window Materials TLSOB0038EC 100 TRANSMITTANCE (%) 80 1Non-projecting type (UV glass) 30° 3Long-nose projecting type (MgF2) 30° 20° 30° 20° 20° 10° 10° 0 0 0 -10° -10° -10° -20° 10° -20° -30° -30° 30° 30° 20° -20° -30° 30° 20° 20° 10° 10° 0 0 0 -10° -10° -10° -20° 60 2Projecting type (Synthetic silica) 10° -20° -20° -30° -30° MgF2 TLSOB0021EB -30° TLSOB0020EB TLSOB0077EB SYNTHETIC SILICA 40 ■Light Intensity Distribution UV GLASS 20 100 150 200 250 300 350 WAVELENGTH (nm) 1UV glass UV glass has a higher ultraviolet transmittance than normal optical glass (borosilicate glass). It has the longest cut off wavelength of 185 nm among the three types. However the generation of ozone is lower than other window material types, it is not necessary to have special anti-ozone treatments. 2Synthetic silica Light intensity of deuterium lamps is determined by the aperture (light exit) size. Figure 3 shows typical light intensity distributions for lamps with different aperture sizes. 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. The half width of spectral distribution also becomes narrower with a smaller aperture size. Using 0.5 mm aperture lamps is recommended in applications where higher intensity is required or where light must be irradiated onto a very small area. Figure 3: Arc Distribution APERTURE: 0.5 mm APERTURE: 1.0 mm Synthetic silica is obtained by fusing a silica crystal that is artificially grown. Although its cut off wavelength is 160 nm, it contains less impurities than fused silica, and transmittance at 200 nm has been improved by approx. 50 %. 3MgF2 MgF2 is a crystallized form of alkali metal halide that has an excellent ultraviolet transmittance, a low deliquescence and is used as window material for vacuum ultraviolet applications. Its cut off wavelength is 115 nm. 8 L2D2 Lamps ( Deuterium Lamps) TECHNICAL INFORMATION ■Construction 3Light output stability Figure 4 shows an external view and internal structure of a deuterium lamp. The anode is covered with ceramic to prevent abnormal discharge. The cathode uses a highly durable electrode that ensures minimum wear over a long operating life. Since deuterium lamps utilize the positive column of arc discharge, the cathode is shifted sideways from the optical axis and an aperture is located in front of the anode to obtain high intensity. The aperture plate placed between the anode and cathode may be used as an auxiliary electrode for reliable lamp ignition. Figure 4: External View and Electrode Construction External view Construction CERAMIC ELECTRODE (REAR PIECE) ELECTRODE ANODE APERTURE CERAMIC ELECTRODE (CENTER PIECE) CATHODE BULB LEAD WIRE BULB ●Drift Drift refers to variations in light output over a long period of time that are caused by changes in thermal electron emission characteristics of the cathode, changes in gas pressure inside the bulb, and contaminants on the window. Drift is usually expressed in variation per hour. In the case of Hamamatsu L2D2 lamps, it takes at least 10 minutes to 15 minutes until the inside of the lamp reaches thermal equilibrium after discharge starts, so pre-heating for 20 minutes to 30 minutes is required. ●Fluctuation Fluctuation refers to the peak-to-peak variation in light output over a short period of time. Hamamatsu L2D2 lamps deliver high stability with fluctuation down to 0.005 % (p-p). Fluctuation greatly depends on changes in cathode electron emission capability that might be due to cathode deterioration and other factors. Hamamatsu L2D2 lamps maintain initial small fluctuations even near the end of the guaranteed lamp life. 4Life ●Fluctuation in light output Life end is defined as the point at which the fluctuation in light output exceeds 0.05 % (p-p). ●Drop in light output Life end is defined as the point at which the total emitted energy drops to 50 % of the initial value. LIGHT OUTPUT TLSOC0030EB ■Terminology ■Power supply 1Solarization A deuterium lamp power supply usually includes the following three sections. ●Constant current power supply ●Trigger power supply ●Heater power supply The aperture plate located between the anode and cathode can be used as an auxiliary electrode to make sure that discharge starts without fail. Transmittance of light through UV glass and fused silica gradually decreases as it is used over a long period of time. This is caused by a drop in transparency of the glass resulting from contaminants adhering to the inner wall of the glass bulb and the effect of ultraviolet rays. In worst cases, the glass becomes cloudy and the lamp service life is shortened. The loss of transmittance due to ultraviolet rays is called "solarization" and occurs more markedly at shorter wavelengths. Synthetic silica, however, is highly resistant to this solarization. Lamps with an MgF2 window emit strong UV light. If they are used in air, a thin film will be deposited on the window by CVD (chemical vapor deposition) that might reduce the transparency of the window. To avoid this problem, the lamps should be used in a vacuum or nitrogen atmosphere. Figure 5: Example Circuit Diagram TRIGGER SWITCH DEUTERIUM LAMP 2Discharge starting voltage When the cathode is sufficiently heated and ready for arc discharge, applying a pulse trigger across the anode and cathode will start discharge. This discharge starting voltage is typically 350 V (400 V at most) for 30 W lamps. However since the discharge starting voltage rises with the lamp operation time, applying a voltage of 500 V dc to 600 V dc is recommended for reliable trigger discharge each time. The discharge starting voltage varies according to the trigger method and trigger constant. TRIGGER POWER SUPPLY (DC 500 V to DC 600 V) Rt (1 kΩ to 5 kΩ) Ct (0.1 µF to 0.5 µF) COMPENSATED RESISTOR 100 Ω to 150 Ω 2.2 nF 300 mA CONSTANT-CURRENT POWER SUPPLY (DC 150 V Min.) ANODE APERTURE CATHODE HEATER POWER SUPPLY (Approx.10 W) TLSOC0020EF When using the above circuit to operate a deuterium lamp with a 0.5 mm aperture, setting the trigger resistance to 1 kΩ and the trigger capacitance to 0.5 µF as the CR constant is recommended in order to ensure reliable lamp ignition. 9 OPERATING TEMPERATURE HANDLING PRECAUTION To obtain high stability and long operating life, adequate care must be paid to operating conditions including the lamp operating temperature. As the ambient temperature (Ta) rises, the lamp bulb temperature (Tb) also rises. When the ambient temperature is +25 °C, the bulb temperature rises to about +245 °C to +290 °C. The bulb temperature (Tb) varies according to the lamp type, heater voltage and lamp housing. Hamamatsu L2D2 lamps are designed to operate at an optimal lamp temperature when used at room temperatures. However, to maintain high stability over a long period of time, comply with the operating temperature range shown in Table 1. 1. Deuterium lamps emit ultraviolet rays which can be harmful to eyes and skin. Do not look directly at the emitted light or allow direct exposure to skin. Always wear protective glasses or goggles and clothing when operating the lamps. (Refer to JIS T 8141 or equivalent safety standards). 2. Since the bulb wall temperature reaches a high temperature (over 200 °C) during lamp operation, do not touch it with bare hands or bring inflammable objects near it. 3. Do not apply vibrations or mechanical shocks to the lamp. These might cause light output stability to deteriorate. 4. Graded sealing of synthetic silica and MgF2 window On bulbs using synthetic silica or MgF2 window, the window is formed by so-called "graded sealing" which connects different glasses with slightly different expansion rates. Since the mechanical strength of the seams of this graded sealing is low, use caution when securing the lamp so that no force is exerted on those seams during use. 5. Before turning on the lamp, wipe the bulb and window gently using alcohol or acetone. Do not handle the lamp with bare hands. Dirt or smears on the window will cause a significant drop in ultraviolet transmittance. 6. High voltage is used to operate these lamps. Use extreme caution to prevent electrical shock. Table1: Allowable Operating Temperature Range for Deuterium Lamps Ambient temperature: Ta +10 °C to +50 °C (+20 °C to +30 °C)* Bulb wall temperature: Tb +245 °C to +290 °C Maximum allowable bulb wall temperature: Tb Max. +300 °C Max. *Temperature enclosed by ( ) indicates the optimum ambient temperature. Tb Ta WARRANTY 2.5 cm (1inch) Ta: Temperature measured at a position 2.5 cm (1 inch) away from the bulb wall Tb: Temperature on the bulb wall (cathode side) As the ambient temperature (Ta) rises, the cathode temperature increases, resulting in evaporation of the cathode. If the ambient temperature (Ta) drops, the gas pressure inside the lamp bulb lowers and the gas and ion kinetic energy increases. This causes spattering of the cathode electron emitting materials. In both cases, the gas inside the bulb is rapidly consumed so that the lamp stability and radiant intensity drop, drastically shortening the operating life. To ensure stable operation of L2D2 lamps, care must be used when installing the lamps so that the bulb wall temperature (Tb) will not exceed +300 °C. Lamps are warranted for a period of one year from the date of shipment. If a lamp is found to be defective within this warranty period, Hamamatsu will replace the defective lamp without charge. (This warranty is limited to replacement of the defective lamp.) Even if within the warranty period (one year), the warranty shall not apply to cases where the lamp operation time has exceeded the guaranteed life, or the trouble was caused by incorrect operation or natural or man-made disasters. DISPOSAL OF LAMPS When disposing of the used lamp, take appropriate measures in compliance with applicable regulations regarding waste disposal and correctly dispose of it yourself, or entrust disposal to a licensed industrial waste disposal company. In any case, be sure to comply with the regulations in your country, state, region or province to ensure the used lamp is disposed of legally and correctly. 10 L2D2 Lamps ( Deuterium Lamps) RELATED PRODUCTS X2D2 Lamp S2D2 Module The X2D2 lamps emit UV light with high luminance - twice that of the L2D2 lamps. The X2D2 lamps help enhance the sensitivity and throughput of various instruments utilizing UV light. The S2D2 compact deuterium lamp is a UV point light source with a drastically reduced size compared to ordinary deuterium lamps. This compact size of the S2D2 module makes it easy to install in all types of equipment. The dedicated lamp housing and power supply are designed to extract maximum performance from the S2D2 lamp. Power Supply for S2D2 Lamp L10671P S2D2 Lamp L10671D Lamp Housing for S2D2 Lamp L10671H Lamp housing is supplied with attached cover. High Power UV-VIS Fiber Light Source L10290 High Brightness VUV Light Source Unit L10366 Series Using an X2D2 lamp, the L10290 outputs light of 200 nm to 1100 nm from a light guide (sold separately). Besides a compact size and light weight for convenient to carry, the L10290 is specially designed for easy use. These features make the L10290 useful for various types of portable devices. Using an X2D2 lamp, the L10366 series produces a spectrum from 115 nm to 400 nm with high intensity especially in the vacuum UV range. Its air-cooled housing and vacuum flange mount minimize restriction on the usage location and the installation angle, allowing greater ease of use. Light guide is sold separately. TLSXF0181 Left: Power supply, Right: Light source Compact UV-VIS S2D2 Fiber Light Source L10671 S2D2 VUV Light Source Unit L10706 The L10671 uses a compact deuterium lamp (S2D2 lamp). Despite its compact size, this light source offers high output and high stability. The L10706 uses a compact deuterium lamp (S2D2 lamp) with an MgF2 window. This unit makes it easy to irradiate an object in close proximity and allows the installation and operation under depressurized conditions. Light guide is sold separately. TLSXF0192 Left: Light source, Right: Power supply TLSZF0004 TLSZF0037 Water-Cooled Type 150 W Deuterium Lamps L1314, L1835 Calibrated Deuterium Lamp Light Source L7820, L7820-02 (made-to-order products) These lamps provide a radiant output 3 to 4 times higher than the L2D2 lamps. Two types of window materials, synthetic quartz (L1314) and MgF2 (L1835) are available. These are highly stable light sources with calibrated radiant intensity. Since we are certified as an ASNITE-calibration laboratory, we calibrate spectral irradiance in a range from 200 nm to 400 nm (L7820-02). Left: L1835, Right: L1314 TLSOF0140 Left: Lamp housing, Right: Power supply TLSXF0159 For details, please refer to the catalogs which are available from our sales office. * PATENT: USA; 5552669, 5646487 and other (10), EUROPE; 0685874B, 0700072B and other (7), JAPAN; 2740738, 2769436 and other (7) PATENT PENDING: EUROPE 3, JAPAN 6 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. ©2011 Hamamatsu Photonics K.K. HAMAMATSU PHOTONICS K.K. www.hamamatsu.com HAMAMATSU PHOTONICS K.K., Electron Tube Division 314-5, Shimokanzo, Iwata City, Shizuoka Pref., 438-0193, Japan, Telephone: (81)539/62-5248, Fax: (81)539/62-2205 U.S.A.: Hamamatsu Corporation: 360 Foothill Road, P. O. Box 6910, Bridgewater. N.J. 08807-0910, U.S.A., Telephone: (1)908-231-0960, Fax: (1)908-231-1218 E-mail: [email protected] Germany: Hamamatsu Photonics Deutschland GmbH: Arzbergerstr. 10, D-82211 Herrsching am Ammersee, Germany, Telephone: (49)8152-375-0, Fax: (49)8152-2658 E-mail: [email protected] France: Hamamatsu Photonics France S.A.R.L.: 19, Rue du Saule Trapu, Parc du Moulin de Massy, 91882 Massy Cedex, France, Telephone: (33)1 69 53 71 00, Fax: (33)1 69 53 71 10 E-mail: [email protected] United Kingdom: Hamamatsu Photonics UK Limited: 2 Howard Court, 10 Tewin Road Welwyn Garden City Hertfordshire AL7 1BW, United Kingdom, Telephone: 44-(0)1707-294888, Fax: 44(0)1707-325777 E-mail: [email protected] North Europe: Hamamatsu Photonics Norden AB: Smidesvägen 12, SE-171-41 SOLNA, Sweden, Telephone: (46)8-509-031-00, Fax: (46)8-509-031-01 E-mail: [email protected] TLS 1006E01 Italy: Hamamatsu Photonics Italia: S.R.L.: Strada della Moia, 1/E, 20020 Arese, (Milano), Italy, Telephone: (39)02-935 81 733, Fax: (39)02-935 81 741 E-mail: [email protected] JUL. 2011 IP (1000)