Fixed dust detector dust sensor

NegotiableUpdate on 04/19

Model

Nature of the Manufacturer: Producers

Product Category

Place of Origin

Online Consult

Overview

The YF-8801-PM series dust concentration detector measures the electrostatic induction of dust particles passing through a fixed probe. Dust particles and probes induce static charges, which are amplified by the probe and transmitted to the monitoring and control system. The size of static charge is proportional to the flow rate of dust particles. The high-tech electronic circuit of this system converts this part of the charge into a control signal output, activates the dust over limit emission alarm, and is used to continuously record the total amount or concentration of dust particles. The YF-8801-PM series device provides the latest AC coupling technology in the world. This is the most accurate and stable monitoring technology in modern times, particularly suitable for continuous emission recording and data accumulation. The working principle of this monitoring system is to use the charge induction generated by the flow of dust particles around the probe to confirm the online emission amount (mg/sec) or emission concentration (mg/m3) of dust particles. Under relatively stable combustion conditions (i.e. at the same emission point, there is no significant change in flow rate, temperature, pressure, humidity, and particulate properties of smoke particles, with a variation of less than ± 90%), this system can also be used for online monitoring of emission concentration (unit=mg/M3) after direct calibration.

Product Details

The YF-8801-PM series dust concentration detector is widely used in various industrial applications, including steelmaking, power generation, petroleum, chemical, pharmaceutical, building materials processing, coal mining and mining, cement manufacturing and packaging industries. Typical applications include detecting damaged filter bags in bag filters, recovering powdered materials, monitoring the total amount of product transportation, or monitoring the concentration of smoke and dust emissions from boilers of various sizes and fuels.

ØProduct Introduction

The YF-8801-PM series dust concentration detector has four major features:

1. Adopting the most advanced practical technology - patented improved AC coupling technology, it has high sensitivity and good linearity for dust detection. Dust contamination of the probe does not affect the measurement sensitivity and is maintenance free and cleaning free.

2. Standard two-line system4-20mACurrent output, strong anti-interference ability, easy long-distance signal transmission, no special requirements for signal transmission wires, linear relationship between output current and dust concentration, convenient for subsequent usePLCData processing.

3. The installation and use are completely consistent with the two-wire pressure transmitter, and on-site engineering and technical personnel can use it correctly without any special training. The installation is convenient and the operation is reliable.

4. The junction box is equipped with an integrated transmitter output4-20mAElectrical isolation is achieved between the current and dust sensing probes to ensure safe signal transmission.

Øtechnical specifications

operating ambient temperature	-20℃～60℃ (electronic components)
Operating environment humidity	No condensation90%
Operating environment vibration	Maximum continuous oscillation, any direction, any frequency: root mean square value2g (20m/s2)
Operating environment electromagnetic field	exist50 Maximum value at Hertz=60A/m (Equivalent to one1 Mi x1 Inside the square electromagnetic coil, there is50ATThe magnetic field)
Protection of operating environment	Protection level:IP66/NEMA4Aluminum alloy shell, suitable for installation in non corrosive environments, stainless steel probe
Pipeline gas pressure	-0.1 –1MPa
Pipeline gas flow rate	1m/s～30m/s
Pipeline gas temperature	0℃～250℃（260℃-800C can be customized)
Pipe OD	0.1Mi~4 rice
Probe structure	The standard probe is φ16mm, Length100mm-1000mmProbe material: Rare earth amorphous alloy,
Dust particle size range	nominal0.1μM～200 μMIt can still receive signals outside the nominal range, but the signal characteristics are slightly different.
powder material	Including: dust, coal powder, flour, dust, smoke, graphite, manganese dioxide, quicklime and other various particulate matter
zero drift	(time)Below range every year1%.
zero drift	(temperature)Within the specified temperature range, below the measuring range1%.
Full-scale drift	(time)Below range every year1%
Full-scale drift	(temperature)Within the specified temperature range, below the measuring range1%.
Line stability	All components of the system are made of high stability electronic assemblies.
Noise resistance	all50 perhaps60 Hertz audio and harmonics are all filtered out before the signal is received
measuring range	0-10mg/50mg/100mg/200mg/1000mg/30g/100g/m³
Transmitter output mode	two-wire system4 –20mA(Built in isolator, explosion-proof and anti-interference)
Transmitter power supply	24V(15V～32VAvailable within the scope)
measurement accuracy	±5%
Probe length selection	Please select the probe length according to the formula, that isD/3≤ L ≤2D/3 (Among them:D- Inner diameter of the pipeline,L- Probe length)