UVTRON® DRIVING CIRCUIT C10423 SERIES Compact, Lightweight, Low Current Consumption Operates as High-sensitivity UV Sensor Just by Connecting to a UVTRON R9454 Ideal for Fire and Arson Surveillance FEATURES Figure 1: DIMENSIONAL OUTLINE (Unit: mm) APPLICATIONS CATHODE GND 36 C10423 2.5 CX 2 1 + – Parameter NOTE: AThe output pulse width can be extended up to about 10 s by adding a capacitor to the circuit board. BSince the output impedance of this power supply is extremely high, an ordinary voltmeter cannot be used. Use a voltmeter that has an input impedance of more than 10 GΩ. CNo condensation 2.54 7.62 40 TOP VIEW 1.6 12 MAX. 50 2.5 MAX. Description / Value Unit Open Collector Output Output Signal (50 V, 80 mA Max.) — 10 ms with pulse output A UVTRON Supply Voltage 400 B V Quenching Time ms Approx. 25 Suitable UVTRON R9454 (sold separately) — Operating Ambient Temperature C -10 to +50 °C 12 to 24 C10423 Input Voltage (DC) V 5 ± 0.25 C10423-01 Current Consumption C10423 4 mA (Max.) 0.3 C10423-01 Weight Approx. 12 g 8 4- 3.5 LOT MARKING SPECIFICATIONS 4 7 A 1 ●Flame detectors for gas and oil lighters ●Fire alarms ●Arson watch monitor ●Combustion monitors for burners ●Electric spark detector ANODE GND 26 The C10423 series is compact power supply and signal processing circuit developed to drive the high-sensitivity UV sensor "UVTRON R9454". By using a double-sided printed circuit board we cut the area size to half that of conventional drive circuits. Since the high-voltage supply and signal processor are mounted on the same circuit board, the C10423 can be operated as a high-sensitivity UV sensor just by connecting a UVTRON and supplying a low DC voltage. The signal processing circuit cancels out background discharges which may occur in the UVTRON due to natural excitation light (cosmic rays, solar UV rays, etc.). This minimizes erroneous detection so the C10423 output signal can be used without additional filtering. Combining the C10423 with a high-sensitivity "UVTRON R9454" (sold separately) for use as a flame detector yields sensitivity capable of detecting the flame from a cigarette lighter (flame length 25 mm) even at distances up to 5 meters away. SIDE VIEW TPT A0043EB 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. ©2013 Hamamatsu Photonics K.K. UVTRON® DRIVING CIRCUIT C10423 SERIES Figure 1: Schematic Diagram UVTRON R9454 (SOLD SEPARATELY) ANODE CATHODE +400 V +5 V + POWER SUPPLY INPUT OUTPUT SIGNAL WAVEFORM 5V K A SIGNAL PROCESSING CIRCUIT 1 3 5 9 HIGH VOLTAGE DC-DC CONVERTER CONSTANT VOLTAGE CIRCUIT GND Low 5V J1 J2 J3 J4 GND – GND OPEN COLLECTOR OUTPUT (1) High OPEN COLLECTOR OUTPUT (2)* High 10 ms E CHIP JUMPER FOR Tr: 50 V • 80 mA SETTING BACKGROUND CANCEL LEVEL Chip Jumper J1 J2 J3 J4 Low Number of Pulses 1 (Without Background Cancel) 3 (Normal Setting) 5 9 Figure 2: Method of Connection TPT C0019EA CONNECTING POINT OF UVTRON A: Connecting Anode of UVTRON K: Connecting Cathode of UVTRON G A K G CHIP JUMPERS FOR SETTING BACKGROUND CANCEL LEVEL C10423 7 A 1 POWER SUPPLY INPUT AND SIGNAL OUTPUT POINT –: GND +: POWER SUPPLY (DC) 1: OPEN COLLECTOR OUTPUT (1) D 2: OPEN COLLECTOR OUTPUT (2) D* J4 J3 J2 J1 CX 2 1 + – The background cancel circuit of the C10423 is designed to output a signal only when 1 to 9 or more signal pulses from the UVTRON are detected consecutively within 2 seconds. The background cancel level is set to chip jumper position 3 pulses (J2) before shipping. If the C10423 is used in locations where a high amount of natural excitation (background) light is present, the cancel level should be changed by reconnecting the jumper position to 5 pulses (J3) or 9 pulses (J4). When this is necessary, please contact us. We will change the jumper setting. CX: POINT FOR ADDING A CAPACITOR TO EXTEND OUTPUT PULSE WIDTH E NOTE: DThe recommended rating of the open-collector transistor is 50 V / 80 mA. The maximum rating of the open-collector transistor is 50 V / 100 mA. When the circuit is connected to a relay or buzzer, use caution not to exceed this rating. EThe C10423 output pulse width is set to 10 ms before shipment. To expand the pulse width, connect a capacitor to this terminal. (Make sure the polarity is correct when using an electrolytic capacitor.) Example: CX = 1 µF, Pulse width = Approx. 1 s CX = 10 µF, Pulse width = Approx. 10 s * C10423-01 does not read out "OPEN COLLECTOR OUTPUT (2)". TPT C0020EB PRECAUTIONS FOR USE ● Since the operation impedance is extremely high, the UVTRON should be connected as close as possible to the circuit board within 5 cm. ● Take care to avoid external noise since a C-MOS IC is used in the circuit. It is recommended that the whole PC board be put in the shield box when it is used. ● The DC-DC converter type high-voltage supply for this unit has a very high impedance. If the ambient humidity is high, then electrical leakage on the printed circuit board surface might lead to a drop in the supply voltage to the UVTRON. This voltage drop might cause lower sensitivity or malfunctions. If using the unit in a high humid environment apply a silicon-based moisture-proof coating to the UVTRON connection terminals. 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: Thorshamnsgatan 35 SE-164 40 Kista, Sweden, Telephone: (46)8-509-031-00, Fax: (46)8-509-031-01 E-mail: [email protected] TPT 1023E03 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] China: Hamamatsu Photonics (China) Co., Ltd.: 1201 Tower B, Jiaming Center, 27 Dongsanhuan Road North, Chaoyang District, Beijing 100020, China, Telephone: (86)10-6586-6006, Fax: (86)10-6586-2866 E-mail: [email protected] FEB. 2013. IP