SPECIFICATION Product Name: Laser Particle Counting Sensor Item No.: PM3003SN. Version: V0.2 Date: 6th Sept, 2023

Laser Particle Counting Sensor PM3003SN Applications Clean Room Pharmaceuticals Industry Electronics industry Microbiological Industry Description The PM3003SN laser dust particle counting sensor is based on the principle of light scattering, which can accurately detect and calculate the number of suspended particles of different particle sizes per unit volume of air. It can output the particle counts of six channels of 0.3μm, 0.5μm, 1.0μm, 2.5μm, 5.0μm, and 10μm at the same time. Constant power line laser, precise identification Concave condensing design, high counting efficiency Wide working...

Dimensions and Connector1. Dimensions (Unit: mm) No. 3. Connector DescriptionThe interface connector of Sensor is A2501WV-8P. The pitch is 2.5mm.The connection cable with female connector at both ends can also be customized. www.gassensor.com.cn

Typical Application Circuits Application 1: UART TTL 3.3V output Attention for circuit design: • UART and I2C communication compatible for 3.3V and 5V voltage level (receiver) • PIN8 is a floating port, which is used for internal programming only.

UART Communication ProtocolI.General Statement 1) The data in this protocol is all hexadecimal data. For example, “46” for decimal [70]. 2) [xx] is for single-byte data (unsigned, 0-255); for double data, high byte is in front of low byte. 3) Baud rate: 9600; Data Bits: 8; Stop Bits: 1; Parity: No 4) It is default by continuously mode after powering on. Sending format of software: Function Description Read particle measurement result Open/close particle measurement Set up and read particle calibration coefficient Set and read output unit Read serial number 4.1 Read Particle Measurement Result...

CUBIC Data >0.3gm, particles quantity >0.5pm, particles quantity >1.0pm, particles quantity ; >2.5pm, particles quantity >5.0pm, particles quantity >10pm, particles quantity = >0.3um, particles quantity : >0.5pm, particles quantity >1.0pm, particles quantity >2.5pm, particles quantity >5.0pm, particles quantity >10pm, particles quantity =

CUBIC DF49: Alarm of sensor module working condition: 4.2 Open/Close Particle Measurement Send: 11 03 0C DF1 1E CS Response: 16 02 0C DF1 CS Function: Open/ close particle measurement 1. When sending command, DF1=02 means opening measurement, DF1=01 means closing measurement; 2. When receiving response, DF1=02 means measuring opened, DF1=01 means measuring closed; 3. When the sensor receives the command of opening measurement, it will be in default continuous measuring mode. //open particle measurement //module is under particle measurement open status //close particle measurement // module is...

4.5 Set working mode Send: Continuous counting mode: DF1=0 Single cumulative counting mode: DF1=1 1. In the continuous counting mode, the sensor is in a continuously turned-on state, and the measured value is the particle value of the current environment. The measurement stops after receiving the close measurement command. 2. In the single cumulative counting mode, the sensor is in the off state, and the measurement starts after receiving the instruction to start the measurement. The measurement value is the continuous accumulated value, and after the measurement time arrives (the output PCS...

a. This is an I2C protocol for PM3003SN. The sensor module is lower computer, which is not able to initiate communication automatically. Communication is initiated via main controlled board, which reads data and sends control commands. b. Communication clock frequency <=100Khz START: start signal, send by main controlled board; STOP: stop signal, send by main controlled board; ACK: acknowledge signal, send by the sensor module if in bold; otherwise, send by main controlled board; NACK: non-acknowledge signal, send by the sensor module if in bold; otherwise, send by main controlled board; Px:...

3.1.3 Set Output Unit Send: Function: Set output unit pcs/ m3 3.2 Read Data Command Send by main controlled board:

To measure air flow rate, Gasboard-7500H-OPC Ultrasonic Flow Meter

Package Information Sensor per Tray

Product Installation When the sensor is installed and used in user’s system, it should ensure that the airflow at the sensor’s air inlet and outlet is unobstructed. To ensure sensor’s measurement accuracy, the surface of sensor sensitive elements as shown in figure 1 shall be protected from dust depositing. It is recommended to install the sensor in user’s system following the installation recommendation shown in figure 2. Figure 1 Sensor Internal Profile The blue surface represents the front of the filter The blue surface represents photosensitive detector Figure 2 Installation recommendation...

User Attentions ※ The recommended length of the air inlet duct should be within 20cm, and the recommended material is fluorine rubber. ※ It is recommended to use compressed air to clean the sensor regularly during the use of the product to prevent the contamination of flocs, hair, etc. from affecting the sensor detection. ※ The product is an integral part, users should not disassemble it to avoid irreversible damage. ※ The product is defined as a 3R laser product according to GB7247.1-2012 Laser Products Safety with laser radiation. Please avoid direct exposure to the eyed. After-Sales Services...