The 7 Smart Sensor Module consists of a
data collection and processing PCB assembly, a SemeaTech 7-Series
electrochemical (EC) sensor, and a metal enclosure. The PCB assembly in
the module collects the data from the gas sensor output and then
processes it with amplification, sampling, filtration, and compensation
through a built-in MCU to deliver stable and accurate digital output
reflecting the actual target gas concentration. All of SemeaTech
7-series EC sensors and 4-electrode EC sensors can be used to form a 7
Smart Sensor Module to detect the target gas with the digital output.
This module provides the convenience and friendly user experience for
users to quickly integrate gas sensors into their existing systems for a
variety of gas detection applications.
· Unified electrical interface, mechanical dimensions and communication protocol;
· Working with all SemeaTech 7-series EC sensors and 4-electrode EC sensors;
· Built-in temperature and humidity sensors for better environmental independence;
· Multiple output interfaces, including USART, and I²C;
· Equipped with metal case (optional), it can protect the internal circuit from dust and water;
· Programmable I²C address for user friendly interfaces.
The 4ECM-Smart Sensor Module is designed
for 4-Series three-electrode electrochemical sensors, serving as a
modular detection platform for real-time concentration detection of
various types of toxic and hazardous gases in the environment. The
module uses SemeaTech electrochemical sensor as the sensitive component
(specific technical parameters of the sensor refer to the datasheet) and
performs gas concentration detection through signal sampling,
amplification, filtering, and conversion. It features built-in
temperature compensation, linear correction, and other functions,
ensuring excellent stability. The module supports UART signal output
modes, allowing direct output of digital and analog voltage signals that
represent gas concentration data. The user-friendly design simplifies
operation and reduces the users' development cycle. It also includes an
automatic shorting PIN function for zero-bias power failure, enabling
stable operation within minutes of power-on for unbiased sensors. For
biased sensors, it is recommended to power on for over 24 hours before
use.
The RS485 transmitter is specifically
designed to pair with SemeaTech 4SMART sensor modules. The
transformation of TTL-485 signals from the modules can seamlessly occur
by directly connecting them to the transmitter, requiring no
configuration or adjustments.
