Currently, there are dozens of RTU remote measurement and control terminals (automated monitoring terminals) on the market. Wireless transmission equipment DTU and RTU are also easily confused. Everyone is very confused during the selection process. Here, this article will give a simple explanation for convenience. Please refer to the following for RTU selection:
1. The traditional DTU module is mainly used for communication and is generally used with a collector.
3. Universal controller RTU is mainly used in similar projects such as pump stations and water plant monitoring. It has a relatively large number of AI/DI/DO interfaces and rich communication interfaces. It is generally used in conjunction with sensors.
2. Water resource controller RTU is mainly used in water resource metering, remote monitoring of water source wells, and collecting the status of a single pump. It is generally used in conjunction with sensors.
5. RTU with telemetry function is equivalent to RTU and is an upgraded version. It is mainly used for monitoring agricultural wells, controlling water pumps, collecting flow, pressure, water level, IC card swiping, etc.
4. RTU with low power consumption and telemetry function is mainly used in the hydrology industry to monitor rainfall, water level, camera photography, etc. It supports hydrology protocol and Beidou communication.
6. Battery-powered RTU with telemetry function is mainly used in meter reading and pressure collection of water companies and groundwater monitoring projects of water bureaus.
People often ask, can’t DTU be used for groundwater monitoring? There is no technical problem, but the cost will increase compared to RTU.
Some customers will ask if the number of DTU interfaces is sufficient and can they not be used in pumping stations and water plant monitoring? There is no problem from a technical point of view, but DTU series products are generally controlled by a single unit and cannot communicate point-to-point, so their applicable scenarios are extremely limited.
In addition to price and cost, when choosing a product, applicability is also very important. Choosing the right product, fast delivery, stable procedures, and less on-site maintenance will greatly reduce maintenance costs.
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