Description
The TSA202 analogue input module is a dual-channel device that uses the 1-Wire digital protocol to provide an accurate solution for measuring various analogue signals. Designed for industrial and automation environments, it ensures signal integrity and robust protection against electrical interference through galvanic isolation between its analogue inputs and the communication interface. The TSA202 offers flexible input capabilities, supporting two selectable modes: a 0–20mA current loop and a 0–10V voltage input. The extended 0–20mA range, allows for the detection of critical conditions like sensor faults or diagnostic outputs that might fall below the typical 4mA threshold.
Both channels of the TSA202 operate in the same input mode simultaneously. This module is highly versatile, capable of measuring both electrical and non-electrical parameters when paired with appropriate external sensors. The raw analogue values, whether current or voltage, can be easily converted into meaningful measurement units by applying an offset and multiplier defined in the master controller. This feature ensures seamless integration with a wide array of sensor outputs, making the TSA202 an essential component for high accuracy analogue data acquisition over a digital interface. Its outstanding flexibility, ease of use, and broad compatibility with different sensor types and applications make it a powerful tool for diverse monitoring needs.
Features
- Functional isolation between the analogue inputs and the 1-Wire interface for improved safety and signal integrity
- LED indicator for communication status
- Selectable input mode (0-10V or 0-20mA) configurable via the connector
- Firmware updates via the 1-Wire interface
Applications
- Liquid level monitoring – Accurately track fluid levels in tanks, containers, or open reservoirs with suitable depth sensors
- Air flow measurement – Monitor changes in air flow for HVAC systems, weather stations, or pneumatic control systems with AVT transmitter
Specifications
Parameter | Value |
Supply Voltage Range (1-Wire Bus): | 4.5 to 5.5V |
Maximum Supply Current (1-Wire Bus): | 25mA |
Input Current Range: | 0 to 20mA |
Input Voltage Range: | 0 to 10V |
Accuracy: | ±1% |
Resolution: | 0.001mA/0.001V |
Isolation Voltage: | 1000vDC |
Ingress Protection: | IP20 |
Operating Range: | -20 to +60°C (10-90%RH Non-Condensing) |
Dimensions: | 120 x 36 x 60mm |
Connectors: | 2 x Screwless Terminals |
Connection Diagram
Connector 1 | Description | Connector | Description |
Pin +5V | Power +ve | Pin AIN1 | Analogue Input 1 |
Pin GND | Ground | Pin GNDS | Ground of Analogue Input 1 |
Pin 1-Wire | 1-Wire Data | Pin AIN2 | Analogue Input 2 |
Pin GND | Ground | Pin GNDS | Ground of Analogue Input 2 |
Pin Mode | Unconnected for 0-20mA Inputs, Wired to adjacent GND for 0-10V Inputs |