AC power acquisition module with DO alarm temperature acquisition

Analog Input

Input Channels

3 current channels, 3 voltage channels

Input Type

Voltage input, current input

Voltage Range (RMS)

Default 450V (customizable up to 1000V)

Current Range (RMS)

Default 50A (customizable 1A, 5A, 10A, 20A, 30A)

Neutral Current Range (RMS)

Default 50A

Can be used for neutral current measurement or leakage current measurement. Customization requires specification.

For neutral current acquisition, the neutral range is consistent with the current range, and an external current transformer is required.

For leakage current acquisition, an external current transformer is required.

Output Parameters

Three-phase phase voltage, three-phase phase current, line voltage, neutral current, active power, reactive power, apparent power, power factor, active energy, reactive energy, apparent energy, input frequency, combined active power, combined reactive power, combined apparent power, combined power factor, combined active energy, combined reactive energy, combined apparent energy, neutral current acquisition, external DS18B20 temperature sensor, external temperature and humidity sensor

Note: Modules with the T suffix have onboard temperature and humidity sensors for measuring ambient temperature and humidity. See section 1.5 for comparison of different suffixes.

Acquisition Signal

Acquisition signal is standard AC grid signal with frequency not exceeding 65Hz.

Sampling Rate

Voltage and current: 1 acquisition every 400ms; Power and energy: 1 acquisition every 300ms

Resolution

16-bit

Acquisition Accuracy

2‰

Built-in Temperature and Humidity Measurement

Onboard temperature and humidity sensor, temperature range: -40~120℃, humidity range: 0~100% (only T module supports)

External Temperature and Humidity Measurement

External temperature and humidity sensor, temperature range: -40~80℃, humidity range: 0~100%

External Temperature Measurement

One 1-wire interface, supports up to 4 DS18B20 sensors.

Temperature measurement range: -55~+125℃

External I2C Interface

Requires customer customization.

Current Transformer

Onboard current transformer, see section 1.6 for transformer details.

Energy

With energy storage function

Secondary Transformation

With secondary transformation function

Communication Isolation Voltage

1500V

Digital Output

Output Channels

3 digital output channels

Output Method

Optocoupler open circuit

Output Signal

Maximum load: 35V, 50mA

Indicator Light

Light on: optocoupler conducting

Light off: optocoupler off

Output Channel Isolation Voltage

3.75KV

Operating Mode

DO output

Other

Communication Interface

RS485

Baud Rate

1200~115200bps

Data Transmission Rate

<10Hz

Watchdog

Hardware watchdog

Power Supply Voltage

DC +10V ~ 30VDC

Power Protection

Reverse power protection for DC supply

Power Consumption

Rated 0.75W @ 24VDC

Operating Temperature

-10℃ ~ +70℃

Storage Temperature

-40℃ ~ +80℃