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Jiangxi dust concentration of chemical dust detector alarm power rock dust, coal dust dust concentration meter
Information Name: | Jiangxi dust concentration of chemical dust detector alarm power rock dust, coal dust dust concentration meter |
Published: | 2014-10-29 |
Validity: | 30 |
Specifications: | Standard |
Quantity: | 10000.00 |
Price Description: | |
Detailed Product Description: | Characteristic features: integrated structure of two special sensors a dust concentration meter from the sensor unit, the transmitter units for non-electronic circuits, Passive type. High sensitivity, without shocks, no dust contamination, high reliability and long life. The electrical current signal to the sensor unit 3 of the transmitter output isolation, to achieve the output current signal is interference-free transmission. 4-wire (4-20mA) current output signal generation, anti-interference ability, ease of long-distance transmission, the transmission wires, no special requirements. Output current with a linear relationship between the concentration of dust, easy to follow the PLC data processing. 5 modular design, the sensor unit can be replaced individually, the transmitter unit. 6 long-life design, full metal jacket, connectors. Technical parameters: 1: Measuring range: 0-50 / 100/200 / 1000mg / m3 (according to the site environment configuration) 2: Pipe diameter: 0.1 m - 4 m 3: Accuracy: full scale of ± 5% 4: dust particle size: 0.1uM ~ 200 uM 5: Working temperature: -50 ℃ ~ 260 ℃ (450 ℃) 6: Ambient temperature: -40 ℃ ~ 85 ℃ (electronic components) 7: Relative Humidity: 90% do not Jielu 8: gas flow rate: 3m / s ~ 30 m / s 9: Pipeline pressure: -0.1Mpa ~ 2 Mpa 10: Environmental Vibration: the amount of the highest continuous shocks in any direction, at any frequency: RMS 2g (20m / s2) 11: Zero drift: less than 1%; full-scale drift: less than 1 percent 12: probe structure: Standard probe, length 400, 600 (can be customized according to the situation) 13: Output: Two-wire 4 ~ 20mA isolated output 14: Power supply: 15V ~ 32V Working principle: using the most reliable electrostatic measurement techniques. Powdery substances in the pneumatic conveying process, will have a collision and friction, and therefore the powder particles will lose electrons to form positively charged particles and the particles change, and change with the concentration of the powder flow rate, the amount of charge changes according to certain rules. The charge of dust particles to form an electrostatic field. Electrostatic induction principle can be measured by the size and changes in the electrostatic field, when the air flow inside the tubes containing dust particles through a fixed sensor, the weak current in the movement of dust particles generated is collected and sent to the transmitter sensor. After transmitter filtering, amplification, and processed into a dust content into a standard output value linear relationship. Alarm settings: 1, EL series alarm in the PLC or other recording system. The output signal is converted into the visible, 4 -20mA readings (e.g. mg / m3). Conversion follows, to-scale 0-100 mg / m3 as an example, 4mA corresponds 0mg, 20mA correspond 100 mg, then 1mA correspond 100 /20-4=6.25 mg. 2, the system set up two horizontal lines, a horizontal line is working properly , generally located at position 20% of full scale, because of the different requirements and the sophistication of the equipment of each plant can also be adjusted accordingly based on the actual situation. Another one is the alarm line, located in the 40% position of full scale, and for a time delay processing to avoid false alarms (eg baghouse dust content in the bag due to the use of cleaning due to momentary increase). |
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Copyright © GuangDong ICP No. 10089450, Weihai MSC Fire Equipment Co. All rights reserved.
Technical support: ShenZhen AllWays Technology Development Co., Ltd.
AllSources Network's Disclaimer: The legitimacy of the enterprise information does not undertake any guarantee responsibility
You are the 5917 visitor
Copyright © GuangDong ICP No. 10089450, Weihai MSC Fire Equipment Co. All rights reserved.
Technical support: ShenZhen AllWays Technology Development Co., Ltd.
AllSources Network's Disclaimer: The legitimacy of the enterprise information does not undertake any guarantee responsibility