· Product Introduction

The SPA analog data acquisition module is meticulously designed based on a new generation embedded system. The module is equipped with an isolated communication interface, which can communicate separately with a PC or PLC, or be networked with multiple communication modules. Simultaneously, the module is equipped with a transient suppression circuit, which can effectively suppress various surge pulses and protect the module for reliable operation in harsh environments.

The SPA1080-MA series DC voltage acquisition module acquires 8 channels of voltage signals and utilizes an advanced Δ-Σ high-precision analog-to-digital converter with a resolution of up to 12 bits and a measurement accuracy better than 0.1%. Power supply, input, and communication output are isolated from each other. It is suitable for acquiring various analog signals in industrial sites and can meet the requirements of industrial sites with high measurement demands, medical electronics, security monitoring, smart buildings, smart homes, power monitoring, process control, and other occasions.

This product requires independent power supply and uses a DIN35mm standard rail mounting method. Field installation is simple, usage is flexible, and it can handle various field applications.

· Basic Parameters

Power Supply DC12～36V(DC24V recommended)

Power Consumption ＜1.5W

Measurement Accuracy ±0.1%F.S（+25℃）

Temperature Drift ≤200ppm/℃

Sampling Frequency ≤200Hz

ESD Protection ±15KV

Isolation Voltage 3000VDC

Power Protection Reverse connection voltage< -40V

Dielectric Strength 1500 VAC / 1 minute(Power, Input, Output)

Insulation Resistance ≥100MΩ (Power, Input, Output)

EMC Compatibility Complies with GB/T18268.1 (IEC61326-1)

Applicable Field Devices Devices supporting MODBUS-RTU protocol: Configuration software, PLC, HMI, PC, etc.

· Input Terminal

Number of Channels 8 channels

Input Range 0-5V/0-10V/0-100V

Input Impedance ≥10MΩ

Sampling Resolution 12-bit ADC

Input Overload Capacity 1.2 times the nominal value of the measured voltage

· Output Terminal

Output Signal RS-485/ Ethernet

Communication Protocol Standard MODBUS-RTU protocol

Communication Distance 1200m (RS485 typical)

· Environmental Conditions

Operating Temperature -40℃～+80℃

Storage Temperature -40℃～+85℃

Relative Humidity 10%～90%RH (non-condensing)

Atmospheric Pressure 80kPa～106kPa