· 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-NB series electrical energy parameter acquisition module includes single-phase AC current, single-phase AC voltage, and single-phase power acquisition. Equipped with an RS485 communication interface, it integrates three delta-sigma ADCs and a high-precision energy metering core with up to 16-bit resolution and a measurement frequency better than 0.1%. The power supply, input, and communication outputs are isolated, making it suitable for a variety of industrial applications and automation systems. It facilitates communication with host computers and enables rapid networking and monitoring system construction.

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, one load current

Input Range Input Range Parameters

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 <0.1%F.S (+25℃)

Current Accuracy <0.1%F.S (+25℃)

Active Power Accuracy <0.1%F.S (+25℃)

Apparent Power Accuracy <0.1%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