SenTec

SEM250 Long pipe temperature and humidity transmitter

SEM250 Long pipe temperature and humidity transmitter professionally applied to pipeline temperature and humidity measurement. The imported temperature and humidity measuring unit has small drift and high precision. It can be used in wet and high dust occasions and durable.

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 consumption0.048W
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≤15s (1m/s wind speed)
Transmitter circuit operating temperature and humidity-40°C~+60°C, 0%RH~80%RH
Communication protocolModbus-RTU communication protocol
Signal outputRS485 output
Temperature display resolution0.1 ° C
Humidity display resolution0.1% RH
Temperature and humidity refresh time1S
Parameter settingsSet by software

Documents

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