DSM501A灰尘传感器.pdf-资料库

SPECIFICATION Dust Sensor Module Model No. DSM501A This specification consists of 9 pages including cover. 5436-1, Sangdaewon-dong Jungwon-gu, Sungnam-city Kyoungki-do, Korea URL : www.syhitech.com

DSM501A Dust sensor module 59mm DSM501A Dust sensor module ■ Features PWM output Compact size and Lightweight 45mm Easy installation Single power supply ■ Application Air cleaner or Air purifier Air conditioner Air quality monitor Ventilator etc ■ Absolute maximum ratings Parameter Supply voltage Operating temperature Storage temperature Symbol Rating Vcc Topr Tstg -0.3 to +7 -10 to +65 -20 to +80 ■ Operating supply voltage Parameter Operating supply voltage Symbol Vcc Rating 5 ± 0.5 ■ Electro-optical characteristics Unit V ℃ ℃ Unit V Parameter Symbol Condition Min. Typ. Max. Sensitivity > 1um *1 - 15,000/283ml - Unit pcs *1 : At condition that the particle diameter is over than one micro meter. Vcc=5V, Ta=25℃ Dec 2004 Ver1.1 1 Preliminary

1.0. DEVICE OVERVIEW DSM501A Dust sensor module This specification applies to the characteristics of model No. DSM501A. The dust sensor module DSM501A is low cost, compact size for a particle density sensor. * Quantitative particle density measurement with the principle of particle counter. * Fine particles of which diameters are bigger than one micron could be detected with high sensitivity. * Inside heater realizes the self-air taking. * One control contact and two output contacts A block diagram is illustrated in figure 1.1. The DSM501A consists of : * Light Emitting Diode (LED) Lamp * Detector * Signal amplifier circuit * Output drive circuit 1 * Output drive circuit 2 * Heater FIGURE 1.1. BLOCK DIAGRAM Dust or Smoke particle LED ° ° ° ° °° Heater Detector AMP circuit #3 Vcc #5 GND #1 Control 1 #4 Vout 1 #2 Vout 2 Output circuit 1 Output circuit 2 Dec 2004 Ver1.1 2 Preliminary

DSM501A Dust sensor module TABLE 1.1. PINOUT I/O DESCRIPTION Pin number Pin name Description #1 #2 #3 #4 #5 Control 1 Vout 1 control Vout 2 Vcc Vout 1 GND Vout 2 output Positive power supply Vout 1 output Ground FIGURE 1.2. PIN ARRAY (component view) Male connector #1 #5 The male and female connector’s maker is LG cable in korea. TABLE 1.2. CONNECTOR PART NUMBER Male Part No. Description GIL-S-5P-S2L2-EF 2mm pitch, angle Female GIL-S-5S-S2C2 2mm pitch Dec 2004 Ver1.1 3 Preliminary

2.0. CIRCUIT DESCRIPTION DSM501A Dust sensor module This section gives a circuit description of the external connections and components of the DSM501A. The following connections and external components provide starting points for designs. 2.1. Vout 2 The Vout 2 is normal output port. The sensitivity of Vout 2 pin is preset up. This port is detect particle which is over 1 micrometer. 2.2. Vout 1 Use this pin when sensitivity of Vout 2 is sensitive. The sensitivity of Vout 1 is dull than Vout 2 about 2.5times. (Vout 1’s sensitivity x 2.5times = Vout 2’s sensitivity) It means size of particle is 2.5 micrometers. Vout 1 is adjustable output. You can adjust to detecting level of particle size. 2.3. Control 1 This pin is adjustable sensitivity of Vout 1. Use this pin when output of Vout 1 is not proper. > How to control Add a resistor between Control 1 pin and ground. And you can tune resistor’s value. TABLE 2.1. RESISTOR VALUE Resistor value Description open 100K 27K Preset sensitivity (over 2.5 micrometer) Half sensitivity Equal sensitivity of Vout 2 (over 1 micrometer) Dec 2004 Ver1.1 4 Preliminary

3.0. APPLICATION DSM501A Dust sensor module This section provides general information on application for the DSM501A. 3.1. Heater This module has a heater (resistor) to generate heat. Heat creates updraft (upward current of air) which draw air outside of the module into the module. 3.2. Detect particle This module is designed to detect the particle whose size is over one micrometer, which means it can detect cigarette smoke, house dust, tick, spore, pollen and mildew. 3.3. Install The dust sensor module DSM501A should be installed vertically and kept away from any artificial current of air by fans. In case it is used for air purifier of which fan located in front or rear part, we request it to be installed at ether side of the housing, not too much deep inside of the housing. Also need to have slit around the module so that air can come inside. In addition, please pay attention to structure and placing location of the application to avoid any adhesive particle like oil, etc. to get into the module. If it sticks to optical part, malfunction may occur. When inside of the module is moisturized, it does not keep its proper function. Please design the application so that moisturization of the module does not happen. 3.4. Lens Lens needs to be cleaned depending on the condition. (once a six months) Cigarette tar on the lens should affect the sensitivity of the sensor. Wet one side of swab with water and rub the lens with it and then dry lens with the other end of swab. Dec 2004 Ver1.1 5 Preliminary

4.0. ELECTRICAL CHARACTERISTIC DSM501A Dust sensor module Vcc=5V, Ta=25℃ Parameter Symbol Condition Min. Typ. Max. Unit Vout 1, 2 at high *1 Vout 1, 2 at low *2 Supply current Time for stabilization *3 Voh No particle 4.0 Vol Icc Particle - 1 4.3 0.7 - - 1.0 90 - V V mA minute *1 : Vout 1 and Vout 2 are high state when not detect particle. (=clean room) *2 : Vout 1 and 2 are go to low state when detect particle. *3 : after the power turned on. FIGURE 4.1. VOLTAGE VS CURRENT ] A m [ t n e r r u C 120 100 80 60 40 20 0 4 4.5 5 5.5 6 Voltage[V] FIGURE 4.2. VOLTAGE LOW RATIO VS PARTICLE ] % [ o i t a r w o L 30 25 20 15 10 5 0 2500 5000 7500 10000 12500 Particle[pcs] X-axis shows number of particles and y-axis shows output characteristics. Upper curve shows upper limit output characteristics and lower one shows lower limit. Dec 2004 Ver1.1 6 Preliminary

DSM501A Dust sensor module 5.0. PACKAGING INFORMATION 5.1. Package marking information 5.2. Package details Package dimensions : W59 x H45 x D20 mm Weight : Approx. 24g 6.0. PRODUCT IDENTIFICATION SYSTEM To order or obtain information, e.q., on pricing or delivery, refer to the listed sales office. DSM501A Device name Sales & Support Dec 2004 Ver1.1 7 Preliminary

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DSM501A灰尘传感器.pdf

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