Light Transmittance Meter

1.Light Transmittance Meter measurement principle

Light Transmittance Meter can determine the dust concentration in dry and moist flue gases by monitoring light transmittance.The detection light crosses the flue, and is a single optical path measurement system, consisting of two parts: a transmitter and a receiver.A high-brightness LED light source is installed in the transmitter.It emits the light beam through the diffuser and passes through the flue, projected onto the focus lens in the receiver and is focused on the measurement detector; the other part is directly focused on the reference detector.By calculating the ratio of signal intensity obtained on the two detectors, the light transmittance or light opacity value can be obtained, thereby obtaining the light transmittance (or light opacity) and the dust concentration value.

2.Main features of Light Transmittance Meter

Direct continuous measurement

Small size, light weight and compact structure

Directly display light transmittance or opacity

Pollution monitoring and compensation device with lens

Automatic calibration and manual calibration, convenient and flexible

Measurement path 0.5-5 meters

With air purge path

Long life LED signal light source

No moving parts – small maintenance

Easy to install and debug

3.Light Transmittance Meter Technical Parameters