SEM222C ceiling type light transmitter is a high-precision photosensitive transmitter, which adopts the ceiling mounting mode, and the measurement unit of data output is lux.
The light sensor is a sensor used to detect the light intensity, referred to as illuminance. The working principle is to convert the light intensity value into a voltage value.
SEM222C ceiling type light transmitter is a high-precision photosensitive transmitter, which adopts the ceiling mounting mode, and the measurement unit of data output is lux.
| Light intensity range | 0-65535Lux；0-200000Lux | |
| Temperature and humidity range | -40℃~+60℃，0%RH~80%RH | |
| Power supply | 10-30VDC | |
| Power consumption | 0.4W | |
| Output signal | RS485(Modbus),4-20mA,0-5V, 0-10V | |
| Accuracy | Temperature | ±3%RH(60%RH,25℃) |
| Humidity | ±0.5℃（25℃） | |
| Light intensity | ±7%(25℃) | |
| Long term stability | Temperature | ≤0.1℃/y |
| Humidity | ≤1%/y | |
| Light intensity | ≤5%/y | |
| Response time | Temperature | ≤18s(1m/s wind speed) |
| Humidity | ≤6s(1m/s wind speed) | |
| Light intensity | 0.1s | |
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