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 Figure 1: DIMENSIONAL OUTLINE (Unit: mm) 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 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 GFlame detectors for gas and oil lighters GFire alarms GArson watch monitor GCombustion monitors for burners GElectric spark detector 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. 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 +5 V + POWER SUPPLY INPUT OUTPUT SIGNAL WAVEFORM 5V HIGH VOLTAGE DC-DC CONVERTER CONSTANT VOLTAGE CIRCUIT 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 Number of Pulses 1 (Without Background Cancel) 3 (Normal Setting) 5 9 Figure 2: Method of Connection CONNECTING POINT OF UVTRON A: Connecting Anode of UVTRON K: Connecting Cathode of UVTRON G CHIP JUMPERS FOR SETTING BACKGROUND CANCEL...