C2A3 is a highly integrated, powerful weighing transmitter. Powered by 24V DC, it innovatively provides both RS485 digital communication and standard analog outputs while integrating two sets of programmable relays. This transmitter delivers a flexible, comprehensive, and reliable weighing control solution for complex industrial applications, meeting real-time control demands while enabling data networking and interaction.

Core Feature Highlights
1. Dual Outputs for Flexible Adaptability

RS485 Digital Interface: Supports Modbus-RTU protocol for seamless integration with PLCs, touchscreens, or host systems, enabling multi-node networking and remote data monitoring.

Analog Output: Available in 0-10V, 0-5V, or 4-20mA versions. Directly connects to controllers or instruments with analog input only, ensuring exceptional compatibility.

2. Intelligent Relay Control

Two Programmable Relays: Built-in dual relays allow independent configuration of trigger conditions (e.g., upper/lower limits, deviation alarms).

Direct Device Control: Relays directly operate external equipment like alarm lights, solenoid valves, or buzzers to enable automated sorting, overlimit shutdowns, or material level control.

3. Multi-Unit Display and Alarm Settings

Flexible Display Units: Supports one-touch switching between multiple weight units including kg (kilograms), t (tons), g (grams), lb (pounds), N (Newtons), etc., accommodating diverse industry measurement practices.

Configurable Alarm Thresholds: Freely set two independent alarm points linked to the two relay groups, enabling precise process control and safety alerts.

4. Industrial-Grade Design and Installation

24VDC Wide-Voltage Power Supply: Compatible with the most common 24V power standard in industrial environments.

DIN Rail Mounting: Utilizes standard 35mm DIN rail installation for easy setup and reduced control cabinet space requirements.

Technical Specifications
Parameter    Specification
Model    C2A3
Power Supply    24VDC (±10%)
Signal Output    RS485 (Modbus-RTU) + Analog (optional 0-10V/4-20mA, etc.)
Relay Output    2 sets, contact capacity 250VAC/5A
Display Units    kg, t, g, lb, N, etc.
Alarm Settings    2 independent programmable alarm points
Overall Accuracy    ±0.05% FS
Mounting Method    Standard 35mm DIN rail mounting
Sensor Excitation    5VDC / 10VDC (can drive multiple sensors)
Application Scenarios
C2A3 excels in complex environments due to its versatility:

Automated Batching Systems: Analog outputs enable real-time PID control, RS485 facilitates recipe uploads and data logging, while relays handle alarms and sequential control.

Distributed Weighing Monitoring: RS485 networking aggregates weight data from multiple stations, with local analog outputs supporting on-site display or control.

Safety Force Monitoring: Real-time monitoring of tension/pressure with relay-based emergency stop protection upon limit exceedance. Historical data uploaded to central control room via RS485.

Smart Tank Weighing: Relay control for loading/unloading valves. Analog outputs connected to local HMI. RS485 integration with factory MES system.