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 flame detectors for gas and oil lighters fire alarms arson watch monitor combustion monitors for burners electric spark detector uv tron driving circuit C10423 tpt a0043ea top view side view C10423 cx 21+ 7a 1 2.5 12 max. 2.5 max. 2.54 7.62 40 50 26 1.6 36 8 4 lot marking 4- 3.5 gnd anode gnd cathode 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. ?007 hamamatsu photoni cs k.k. subject to local technical requirements and regulations, availability of products included in this promotional material may var y. please consult with our sales office. specifications dimensional outline (unit: mm) features applications 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 (cos- mic 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 de- tecting the flame from a cigarette lighter (flame length 25 mm) even at distances up to 5 meters away. * uv tron is sold separately unit parameter output signal uv tron supply voltage quenting time suitable uv tron operating ambient temperature 3 input voltage (dc) current consumption weight max. open collector output (high impedance, low impedance) (50 v, 100 ma max.) 10 ms with pulse output 1 400 2 approx. 25 r9454 (sold separately) -10 to +50 12 to 24 4 approx. 12 v ms c v ma g description / value 1 the output pulse width can be extended up to about 10 s by add- ing a capacitor to the circuit board. 2 since 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 ? . 3 no condensation note:
tpt 1023e01 jun. 2007. ip uv tron driving circuit C10423 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, fa x: (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, f ax: (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: (3 3)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, teleph one: 44-(0)1707-294888, fax: 44(0)1707-325777 e-mail: info@hamamatsu.co.uk north europe: hamamatsu photonics norden ab: smidesv ? gen 12, se-171-41 solna, sweden, telephone: (46)8-509-031-00, fax: (46)8-509-031-01 e-mail: info@hamamatsu.se 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 web site www.hamamatsu.com tpt c0019ea tpt c0020ea figure 1: schematic diagram figure 2: method of connection precautions for use since the operation impedance is extremely high, the uv tron 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 uv tron. 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 uv tron connection terminals. uv tron r9454 (sold separately) k a cathode anode power supply + gnd constant voltage circuit high voltage dc-dc converter signal processing circuit 10 ms 5 gnd gnd 5 v 5 v q q output signal waveform open collector output (2) low impedance 5 1 9 3 +400 v tr: 50 v 80 ma +5 v open collector output (1) high impedance chip jumper for setting background cancel level j3 j1 j4 j2 C10423 cx j1 j2 j3 j4 21 gg ak + 7a 1 the background cancel circuit of the C10423 is de- signed to output a signal only when 1 to 9 or more sig- nal pulses from the uv tron are detected consecu- tively 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 reconnect- ing the jumper position to 5(j3) and 9(j4). 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 connecting point of uv tron a: connecting anode of uv tron k: connecting cathode of uv tron chip jumpers for setting background cancel level cx: point for adding a capacitor to extend output pulse width 5 4 the 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. 5 the 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 note:
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