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UV TRON(R) DRIVING CIRCUIT
C10423
Compact, Lightweight, Low Current Consumption Operates as High-sensitivity UV Sensor Just by Connecting to a UV TRON R9454 Ideal for Fire and Arson Surveillance
FEATURES
The C10423 is a compact power supply and signal processing circuit developed to drive the high-sensitivity UV sensor "UV TRON R9454". By using a double-sided printed circuit board we cut the area size to half that of conventional drive circuits (C3704 series). Since the high-voltage supply and signal processor are mounted on the same circuit board, the C10423 can operate as a high-sensitivity UV sensor just by connecting a UV TRON and supplying a low DC voltage. The signal processing circuit cancels out background discharges which may occur in the UV TRON 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 "UV TRON 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.
* UV TRON is sold separately
DIMENSIONAL OUTLINE (Unit: mm)
ANODE GND 4 8 CATHODE GND
APPLICATIONS
GFlame detectors for gas and oil lighters GFire alarms GArson watch monitor GCombustion monitors for burners GElectric spark detector
4- 3.5 C10423
7A 1
26 1.6
LOT MARKING 2.5
SPECIFICATIONS
Description / Value Open Collector Output (High Impedance, Output Signal Low Impedance) (50 V, 100 mA Max.) 10 ms with pulse output 1 UV TRON Supply Voltage 400 2 Quenting Time Approx. 25 Suitable UV TRON R9454 (sold separately) Operating Ambient Temperature 3 -10 to +50 Input Voltage (DC) 12 to 24 Current Consumption Max. 4 Weight Approx. 12 Parameter Unit --
CX
21+-
2.54 7.62 40 50
V ms -- C V mA g
NOTE: 1The output pulse width can be extended up to about 10 s by adding a capacitor to the circuit board. 2Since 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 G. 3No condensation
2.5 MAX.
12 MAX.
TOP VIEW
SIDE VIEW
TPT A0043EA
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. (c)2007 Hamamatsu Photonics K.K.
36
UV TRON(R) DRIVING CIRCUIT C10423
Figure 1: Schematic Diagram
UV TRON R9454 (SOLD SEPARATELY) ANODE CATHODE OUTPUT SIGNAL WAVEFORM 5V Q GND
A +5 V + POWER SUPPLY - GND CONSTANT VOLTAGE CIRCUIT +400 V HIGH VOLTAGE DC-DC CONVERTER
K
SIGNAL PROCESSING CIRCUIT 1359
J1 J2 J3 J4
OPEN COLLECTOR OUTPUT (1) HIGH IMPEDANCE OPEN COLLECTOR OUTPUT (2) LOW IMPEDANCE
Q
5V GND
10 ms 5 CHIP JUMPER FOR Tr: 50 V * 80 mA SETTING BACKGROUND CANCEL LEVEL
TPT C0019EA
Figure 2: Method of Connection
CONNECTING POINT OF UV TRON A: Connecting Anode of UV TRON K: Connecting Cathode of UV TRON
G A K G
CHIP JUMPERS FOR SETTING BACKGROUND CANCEL LEVEL
J4 J3 J2 J1
POWER SUPPLY INPUT AND SIGNAL OUTPUT POINT -: GND +: POWER SUPPLY (DC) 12 V to 24 V 1: OPEN COLLECTOR OUTPUT 4 HIGH IMPEDANCE 2: OPEN COLLECTOR OUTPUT LOW IMPEDANCE
CX
21+-
The background cancel circuit of the C10423 is designed to output a signal only when 1 to 9 or more signal pulses from the UV TRON are detected consecutively within 2 seconds. The background cancel level is set to chip jumper position 3(J2) before shipment. If the C10423 is used in locations where a high amount of natural excitation (background) light is present, then change the cancel level by reconnecting the jumper position to 5(J3) and 9(J4). CX: POINT FOR ADDING A CAPACITOR TO EXTEND OUTPUT PULSE WIDTH 5
C10423
NOTE: 4The maximum rating of the open-collector transistor is 50 V / 100 mA. When connecting a relay or buzzer, use caution not to exceed this rating. 5The 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 F, Pulse width = approx. 1 s CX = 10 F, Pulse width = approx. 10 s
PRECAUTIONS FOR USE
G Since the operation impedance is extremely high, the UV TRON should be connected as close as possible to the circuit board within 5 cm. G 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. G 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 UV TRON. This voltage drop might cause lower sensitivity or malfunctions. If using the unit in a high humid environment apply a siliconbased moisture-proof coating to the UV TRON connection terminals.
WEB SITE 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: usa@hamamatsu.com Germany: Hamamatsu Photonics Deutschland GmbH: Arzbergerstr. 10, D-82211 Herrsching am Ammersee, Germany, Telephone: (49)8152-375-0, Fax: (49)8152-2658 E-mail: info@hamamatsu.de 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: infos@hamamatsu.fr 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: info@hamamatsu.co.uk North Europe: Hamamatsu Photonics Norden AB: Smidesvagen 12, SE-171-41 SOLNA, Sweden, Telephone: (46)8-509-031-00, Fax: (46)8-509-031-01 E-mail: info@hamamatsu.se TPT 1023E01 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: info@hamamatsu.it
7A 1
TPT C0020EA
JUN. 2007. IP

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