Electrostatic Dust Meter
Features
☆ Adopt mixed signal processing method, strong anti-interference ability
☆ Easy to use The dust contamination of the probe do not affect the measurement sensitivity,
☆ By intelligent successive approximation algorithm, it can adapt to more working conditions
Principle
Charge transfer occurs when two objects rub or touch.The device adopts accurate and reliable AC electrostatic measurement technology.When the dust particles pass through the sensor, the weak charges carried by the dust particles are collected by the sensor and sent to the processor. The processor converts the signal processing result into an output value that is linearly related to the dust content.
|
Model |
PW-ESDM series |
|
|
Operate temperature range |
-20~60℃ |
|
|
Operate humidity range |
No condensation of 90% |
|
|
Operate vibration environment |
Maximum continuous oscillation, any direction, any frequency: ROOT mean square value 2g (20m/s²) |
|
|
Operate electromagnetic field |
Maximum: 60A/m at 50 Hz (equivalent to a 50AT magnetic field in a 1m x 1m square solenoids) |
|
|
Operate environment protection |
IP66/NEMA4 aluminum alloy housing, suitable for installation in non-corrosive environment, stainless steel probe |
|
|
Pipeline gas pressure |
-0.1~1MPa |
|
|
Pipeline gas flow rate |
1m/s～30m/s |
|
|
Pipeline gas temperature |
-50~450℃ |
|
|
Pipe outer diameter |
0.1~4m |
|
|
Probe structure |
Standard probe is M6, 160 mm long, 316 stainless steel rod. |
|
|
Dust particle range |
Nominal 0.1μM ~ 200μM ( Particles exceed nominal range can be received but the signal characteristics are different ) |
|
|
Time zero drift |
Less than 1% per year. |
|
|
Temperature zero drift |
Less than 1% over the specified temperature range |
|
|
Time full scale drift |
Less than 1% per year. |
|
|
Temperature full scale drift |
Less than 1% over the specified temperature range |
|
|
Line stability |
All parts of the system are made of high-stability electronic assemblies |
|
|
Noise resistance |
All 50/60 Hz audio & harmonics are filtered out before signal is received |
|
|
Measure range |
0-9/12/25/50/100/200/400/800/1000 mg/M³ |
|
|
Transmitter output mode |
Two-wire 4 – 20mA (built-in isolator, explosion-proof & anti-interference) |
|
|
Transmitter power |
15V – 32VDC |
|