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DAM-3523

DAM-3523 is a 3-way AC current acquisition module, and it has RS485 communication interface and standard ModbusRTU protocol. It is equipped with a good human-computer interface, so it is easy to use and its performance is stable.
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Category
Data acquisition module
RS485 acquisition module
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Product description

Analog Input

Input Channel

3 current channels

Input Type

AC input

Current Range (RMS)

Default 50A (customizable 1A, 2A, 5A, 10A, 20A, 80A, 100A, 120A,

150A, 200A, 250A, 300A, 400A, 500A)

Before shipment, customers need to specify the range.

Output parameters

Current RMS

Acquired Signal

The Acquired signal is the grid standard AC signal, and the frequency

does not exceed 65Hz

Sample Rate

10sps/each channel

Resolution

16 bit

Acquisition accuracy

2‰

Note: When the monitored current is lower than 100mA,

the measurement error will increase due to the larger transformer

ratio error.

Current Transformer

External current transformer, see 1.6 External transformer description

Isolation Voltage

3000V

Other

Communication Interface

RS485

Baud Rate

1200~115200bps

Data Transfer Rate Note 2

Maximum 180Hz (total channel of single module, at 115200bps)

Maximum 24Hz (single module total channel, at 9600bps)

Maximum 3Hz (single module total channel, at 1200bps)

Watchdog

Built-in watchdog

Supply Voltage

+10V～30VDC

Power Protection

Power reverse protection

Power Consumption

Rated 0.75W @ 24VDC

Operating Temperature

-10℃～＋70℃

Storage Temperature

-20℃～＋85℃

 

Note：

  1. Sampling rate: This parameter refers to the acquisition speed of the ADC chip. Due to the speed limitation of the RS485 interface, it is impossible to actually output all the sampled data.
  2. Data communication rate: This parameter refers to the communication speed between the MCU controller and the host computer, which is a theoretical parameter. The actual parameter may not be able to reach this parameter according to the on-site environment.
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