· Product Introduction

The SPE electrical energy signal data acquisition module is meticulously designed based on a new generation of embedded systems. Equipped with an isolated communication interface, it can communicate independently with a PC or PLC, or be networked with multiple communication modules. It also features a transient suppression circuit that effectively suppresses various surge pulses, ensuring reliable operation in harsh environments.

The SPE8-NE series electrical energy parameter acquisition module supports single-phase AC current acquisition, single-phase AC voltage acquisition, and single-phase power acquisition. It is equipped with an RS485 communication interface and integrates three Delta-Sigma ADCs along with a high-precision energy metering core, achieving a resolution of up to 19 bits and a measurement frequency accuracy better than 0.05%. The power supply, input, and communication outputs are isolated from each other, making it suitable for various industrial applications and automation systems. It facilitates communication with host computers, enabling rapid networking and the construction of monitoring systems.

This product requires an independent power supply and is mounted on a standard 35mm DIN rail, offering simple on-site installation and flexible use, adapting to a variety of field applications.

· Basic Parameters

Power Supply DC12～36V(DC24V recommended)

Power Consumption ＜1.0W

Temperature Drift ≤200ppm/℃

Sampling Frequency ≤3Hz

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 Configuration software, PLCs, touch screens, computers, and other devices supporting the MODBUS-RTU protocol

· Input Terminal

Acquisition Channels 2 Channels

Input Signals One AC voltage<500V, one load current<500V

Input Range The input range is referred to in the product name

Input Frequency 45Hz to 65Hz

· Output Terminal

Output Signal RS-485 communication signal

Communication Protocol Standard MODBUS-RTU protocol

Communication Distance 1200m (typical)

Voltage Accuracy <0.05%F.S (+25℃)

Current Accuracy <0.05%F.S (+25℃)

Active Power Accuracy <0.05%F.S (+25℃)

Apparent Power Accuracy <0.05%F.S (+25℃)

Frequency Accuracy ±0.1Hz

· Environmental Conditions

Operating Temperature -40℃～+80℃

Storage Temperature -40℃～+85℃

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

Atmospheric Pressure 80kPa～106kPa