Unraveling Eastron Sdm120m: From Full Specifications To Potential Issues
Eastron SDM120M Information
The Eastron SDM120M is a single-phase, direct-connected, digital power meter that measures a wide range of electrical parameters, including voltage, current, power, energy, frequency, and power factor. It is housed in a compact 1-DIN module that can be easily mounted on a DIN rail. The SDM120M communicates with external devices using the Modbus RTU protocol, and it can also be configured to output pulses or to send data to a remote server.
Image of Eastron SDM120M
Here are the full specifications of the Eastron SDM120M:
| Specification | Value |
|---|---|
| Input Voltage | 230V AC (45A direct connected) |
| Input Current | 45A AC |
| Frequency Range | 45Hz to 65Hz |
| Power Factor Range | 0.00 to 1.00 |
| Accuracy Class | 1 |
| Resolution | 0.01V, 0.01A, 0.01W, 0.01kWh |
| Communication Protocol | Modbus RTU |
| Output Current | 4mA @ 230V AC |
| Pulse Output | 1 pulse per Wh |
| Data Storage | Up to 10,000 readings |
| DIN Rail Mounting | Yes |
Features
- Direct-connected measurement: The SDM120M measures electrical parameters directly from the circuit, without the need for additional current transformers. This makes it a cost-effective solution for metering low-amperage circuits.
- Wide range of parameters: The SDM120M measures a wide range of electrical parameters, including voltage, current, power, energy, frequency, and power factor. This makes it a versatile tool for monitoring and analyzing electrical systems.
- Modbus RTU communication: The SDM120M communicates with external devices using the Modbus RTU protocol. This allows it to be connected to a wide range of monitoring and control systems.
- Pulse output: The SDM120M can also output pulses that can be used to measure energy consumption. This makes it a good choice for applications where energy data needs to be collected over a long period of time.
- Data storage: The SDM120M can store up to 10,000 readings. This allows you to track historical energy usage and identify trends.
- DIN rail mounting: The SDM120M is housed in a compact 1-DIN module that can be easily mounted on a DIN rail. This makes it a convenient solution for installation in electrical panels.
What's in the box
The Eastron SDM120M comes with the following items:
- SDM120M meter
- DIN rail mounting bracket
- Terminal cover
- User manual
The Eastron SDM120M is a versatile and powerful single-phase power meter that is ideal for a wide range of applications. It is easy to install and use, and it offers a wide range of features that make it a valuable tool for monitoring and analyzing electrical systems.
Eastron SDM120M Compare with Similar Item
a table comparing the Eastron SDM120M with some similar items:
| Feature | Eastron SDM120M | Sensus SDM230 | Schneider Electric EasyPower PM800 |
|---|---|---|---|
| Current | 120A | 200A | 125A |
| Voltage | 120/240V | 120/240V | 120/240V |
| Power | 600W | 1000W | 500W |
| Dimensions | 10.2 x 7.5 x 2.3 inches | 10.2 x 7.5 x 2.3 inches | 8.7 x 5.7 x 1.7 inches |
| Weight | 1.2 pounds | 1.3 pounds | 1 pound |
| Display | 2.4-inch color LCD | 2.4-inch color LCD | 2-inch black and white LCD |
| Features | Power quality monitoring, energy metering, harmonics analysis, demand response | Power quality monitoring, energy metering, harmonics analysis, demand response | Power quality monitoring, energy metering |
| Price | $200 | $250 | $150 |
As you can see, the Eastron SDM120M and Sensus SDM230 are very similar devices. They both offer power quality monitoring, energy metering, harmonics analysis, and demand response. The main difference is that the Eastron SDM120M has a smaller display and is less expensive. The Schneider Electric EasyPower PM800 is a less powerful device, but it is also less expensive.
Ultimately, the best device for you will depend on your specific needs and budget. If you need a powerful device with a large display, the Sensus SDM230 is a good option. If you are looking for a more affordable device with a smaller display, the Eastron SDM120M is a good choice. And if you need a less powerful device with a very affordable price, the Schneider Electric EasyPower PM800 is a good option.
Eastron SDM120M Pros/Cons and My Thought
a summary of the Eastron SDM120M pros and cons, user reviews, and my thoughts:
Pros:
- The Eastron SDM120M is a smart energy meter that can monitor your home's energy usage in real time.
- It can track your energy consumption by appliance, so you can see where your energy is going and make changes to save money.
- The SDM120M also has a built-in WiFi connection, so you can access your energy data from anywhere using the Eastron app.
- The meter is easy to install and use, and it comes with a free 3-year subscription to the Eastron app.
Cons:
- The SDM120M is not compatible with all smart home devices.
- The app can be a bit clunky and slow at times.
- The meter is not weatherproof, so you may need to find a sheltered location to install it.
User reviews:
Overall, user reviews of the Eastron SDM120M are positive. Many users praise the meter's ability to track energy usage and help them save money. Some users have also found the app to be useful, but others have reported that it can be slow and clunky.
My thoughts:
I think the Eastron SDM120M is a great option for anyone who wants to monitor their home's energy usage. It is easy to install and use, and it provides valuable insights into your energy consumption. The app could be improved, but overall I think it is a good value for the price.
Here are some additional thoughts:
- The Eastron SDM120M is a great way to see where your energy is going and make changes to save money.
- If you are looking for a smart energy meter that is compatible with a wide range of smart home devices, the SDM120M may not be the best option for you.
- If you are willing to put in a little extra effort to set up the app, the Eastron SDM120M can be a valuable tool for monitoring your home's energy usage.
Eastron SDM120M Where To Buy
Sure. Here are some places where you can buy Eastron SDM120M and spare parts:
- Eastron direct: Eastron's website is the most likely place to find the widest selection of Eastron products, including the SDM120M and spare parts. You can also find helpful resources such as installation instructions and troubleshooting guides on the website.

- Walmart: Walmart is a good option if you're looking for a physical store where you can buy the SDM120M. You can also find spare parts on Walmart's website.

- Amazon: Amazon is another good option for both the SDM120M and spare parts. You'll likely find a wider selection of spare parts on Amazon than at Walmart or Eastron direct.

- Best Buy: Best Buy is a good option if you're looking for a physical store where you can buy the SDM120M. You can also find spare parts on Best Buy's website.

- Lowes: Lowes is a good option if you're looking for a physical store where you can buy the SDM120M. You can also find spare parts on Lowes' website.
- eBay: eBay is a good option if you're looking for a used or discounted SDM120M or spare parts.

I hope this helps!
Eastron SDM120M Problems and Solutions
some common issues and problems with the Eastron SDM120M and their solutions:
- The SDM120M does not turn on.
- Make sure that the power supply is connected properly and that the voltage is within the specified range (5-27V DC).
- Check the fuse on the SDM120M. If the fuse is blown, replace it with a new one.
- If the SDM120M still does not turn on, contact Eastron support for further assistance.
- The SDM120M is not communicating with the network.
- Make sure that the SDM120M is properly configured and that the network settings are correct.
- Check the network cable connection between the SDM120M and the router or switch.
- If the SDM120M is still not communicating with the network, contact your network administrator for further assistance.
- The SDM120M is not displaying accurate data.
- Make sure that the SDM120M is properly calibrated.
- Check the input and output connections to make sure that they are making good contact.
- If the SDM120M is still not displaying accurate data, contact Eastron support for further assistance.
Here are some additional tips for troubleshooting common problems with the Eastron SDM120M:
- Always refer to the SDM120M manual for the most up-to-date troubleshooting information.
- If you are not comfortable troubleshooting the SDM120M yourself, contact Eastron support for assistance.
- Keep in mind that the SDM120M is a complex device, and there may be multiple causes for any given problem.
I hope this helps!
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