Tianyi Sensor IOT Technology Co., Ltd
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Light Transmittance Meter
Model：FT-YGT1
Brand：tianyi
Light Transmittance Meter can determine the dust concentration in dry and moist flue gases by monitoring light transmittance.
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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
| How it works | Crossing the flue, single-light transmission |
| light source | High brightness LED |
| Response time | 98% of the final value is reached in 3 seconds |
| Measurement range | Light transmittance 0-99.99% |
| Resolution | 0.01% |
| Detectable gases | Smoke, smoke or related dust gases |
| Light path length | 0.3-2 meters standard type (other lengths can be customized) |
| Average time | 1-59 seconds |
| Calibration and calibration | Manual calibration and calibration (with calibrator) |
| show | LCD LCD display |
| Analog output | 4-20mA current ring |
| Digital output | RS485/232 |
| Relay output | Two-way switching output (alarm value setting) |
| Operating temperature | -20-50°C |
| Working humidity | 0-99% (no condensation) |
| Power supply voltage | 220VAC; 12, 24VDC optional |
| Power consumption | The maximum transceiver system is 18W |
| vibration | 2Hz-60Hz, maximum amplitude 2mm |
| Housing material | Die-cast aluminum |
| Protection level | IP67 |
Address:https://www.tianyisensor.com/Light-Transmittance-Meter/Light-Transmittance-Meter.html
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