Point To Point Connection 4 20 MA Controller Industrial Iot Data Logger
- Introduction of 4 20 mA Controller
ZHC4661 is an industrial-grade 4G RTU that provides 4 channels of AI, 2 channels of AO and 1 channel of RS485 interfaces, supports Modbus RTU/TCP adaptive, automatic acquisition and active reporting, 4-20mA analog control acquisition, automatic calibration threshold reporting, support one-to-one, many-to-one connection, which can be widely used in power systems.
Parameters of 4 20 mA Controller
| Analog Quantity | AI | AO |
| Number of Interface | 4 | 2 |
| Satandard | 4*AI 2*GND | 2*AO 2*GND |
| Detection / Output Range | 4~20mA | 4~20mA |
| Serial Port |
| Standard | RS485 (A / B) |
| Baud Rate | 600~921600 bps |
| Data Bit | 8, 9 |
| Stop Bit | 0.5, 1, 1.5, 2 |
| Parity Bit | NONE EVEN ODD |
| Mechanical Structure |
| SIZE | 93*69*25mm(L*W*H) |
| SHELL | Galvanized Steel Sheet |
| Work TEMP. | -40℃~85℃ |
| Storage TEMP. | -40℃~125℃ |
| Work Humidity | 5~95% |
| Storage Humidity | 1~95% |
Function of 4 20 mA Controller ZHC4661
The signal current of general instruments is 4-20mA, which means that the minimum current is 4mA and the maximum current is 20mA. When transmitting a signal, consider that there is also resistance on the wire. If voltage transmission is used, a certain voltage drop will be generated on the wire, and a certain error will occur in the signal at the receiving end. Therefore, the current signal is generally used as the standard transmission of the transmitter.
ZHC4661 is a remote control product that supports analog follow and control acquisition.
Support 4 analog inputs, default current detection.
Support 2 analog output, default current output.
Support analog follow and control acquisition.
AO Output Calibration
ZHC4661 provides an AO reference voltage adjustment interface. The reference voltage has a positive relationship with the output signal. When the actual output signal is lower than the ideal output signal, increase the reference voltage; when the actual output signal is higher than the ideal output signal, reduce the reference voltage. Unit: mV
FAQ
Q1. How can we know the product quality?
A1: We have professional QA and QC teams, 100% quality inspection is performed before the goods out of the factory.
Q2:Can I have a small order? what's ur MOQ?
A2: Welcome to order sample to test and check quality. MOQ is 1 for normal item.
Q3: If I am not familiar with the operation, do you have a manual to help?
A3: Our Software, User Manual and Programme case can be downloaded freely on our official website, or you could consult the sales for those documents.Meantime, we have engineers team who could do help on your technician problem and give you useful solution.
Q4: Does your factory have the design and development capabilities, can you factory accept customized products?
A4: Our R&D department are well experienced in the IoT industry, We can make customized products especially for you.
| | ZHC4661 |
| RS485 Modbus | √ |
| RS485 Automatic Acquisition | √ |
| Virtual Serial Port | √ |
| Connfiguration Software | √ |
| Threshold Report | √ |
| Configuration Software Docking | √ |
| Modbus RTU/TCP | √ |
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4AI 2AO 4 20 MA Controller Point To Point Modem Industrial Iot Data Logger Images
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