SenTec

SEM286 Industrial wall-mounted temperature and humidity sensor

SEM286 Adopt high-precision temperature and humidity measurement unit, good long-term stability and small drift. 10~30V wide voltage range power supply. Easy to install, can be wall mounted or rail mounted. High dust protection level (IP65). Adopt standard industrial interface 4~20mA/0~10V/0~5V analog signal output, RS485 standard ModBus-RTU communication protocol

A temperature and humidity sensor is a sensor device equipped with humidity sensitive and thermal elements that can be used to measure temperature and humidity, some with on-site display, and some without on-site display. Temperature and humidity sensors are widely used in various fields of production and life due to their small size and stable performance.

The temperature and humidity sensor mostly uses the temperature and humidity integrated probe as the temperature measuring element, collects the temperature and humidity signals, and processes them through the circuits such as voltage stabilization filtering, operational amplification, nonlinear correction, V/I conversion, constant current and reverse protection. After that, it is converted into a current signal or a voltage signal output that has a linear relationship with temperature and humidity, and can also be output directly through the main control chip such as 485 or 232 interface.

Parameters

Items

Parameter

DC power supply (default)10~30V DC
Maximum power consumption0.4W (RS485 type), 1.2W (analog type)
Precision Ahumidity±2% RH (5% RH~95% RH, 25°C)
temperature±0.4°C (25°C)
Precision B (default)humidity±3% RH (5% RH~95% RH, 25°C)
temperature±0.5°C (25°C)
Long-term stabilityhumidity≤1%RH/y
temperature≤0.1°C/y
Response timehumidity≤4s (1m/s wind speed)
temperature≤25s (1m/s wind speed)
Probe operating temperature-40℃~+120℃, default -40℃~+80℃
Probe operating humidity0%RH-100%RH
Signal output4~20mA, 0~5V, 0~10V, RS485 output
Communication protocolModbus-RTU communication protocol (Default)
Temperature display resolution0.1 ° C
Humidity display resolution0.1% RH
Temperature and humidity refresh time1S
Transmitter circuit operating temperature and humidity-40°C~+60°C, 0%RH~80%RH
Hole Size70mm
Load capacityVoltage: load capacity output resistance ≤250Ω, current: ≤600Ω

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