Description
8 Channel Frequency AC Current Measurement Circuit Data Acquisition MODBUS-RTU RS485 Isolation AC Current Transformer
Product Description
We have 40A threaded transformer, 80A threaded transformer, 40A opening and closing transformer and 120A opening and closing transformer 4 type, please leave us a note which one do you want.
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Power supply voltage
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DC8 ～ 28V
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Rated power consumption
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<3W
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AC current measurement error
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typical value ± 2% 850Hz, ± 5% 8 non-50Hz
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Frequency measurement error
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typical value ± 2.5Hz / frequency division factor
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AC current resolution
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about 0.1% of range before scaling
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Data refresh frequency
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> 5Hz / divider
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Communication interface
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RS485 is willing to take off TVS protection
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Working temperature
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-20 ℃ ~ 50 ℃
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Storage temperature
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-40 ℃ ~ 85 ℃
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Operating humidity
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5% ~ 90% non-condensing
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Working frequency
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[10Hz * 5 / division factor] ~ 400Hz
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Overload capacity
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1.2 times range continuous, 4 times range 2 seconds without damage
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Communication baud rate
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default 9600.N, 8.1, can be modified by yourself
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Number of nodes on the same network
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32
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MODBUS-RTU communication protocol
Function code: 0x03, read multiple registers Example: 01 03 00 00 00 20 44 12 Read 32 words of data from device 01 address 00 Function code: 0x06, write order register Example: 01 06 00 03 00 02 F8 0B Write data 0002H to device 01 address 03 Function code: 0x10, write multiple registers Example: 01 10 00 03 00 01 02 00 02 27 A2 Write data 0002H to device 01 address 03
Note
1. Only operators with certain electrical knowledge can perform other operations such as wiring the product 2. Avoid using in high temperature, humid, dusty places, and avoid direct sunlight. 3. When using this product, please confirm whether it meets the requirements yourself. For the failure of this product that may cause machine failure or loss, please set up backup and safety functions yourself.
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