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tMEM - Energy monitor with Modbus interface
2-way energy, power, voltage and current monitor with Modbus interface.
110.00
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tMEM is a single-phase, bidirectional energy monitor with Modbus RTU interface.
By connecting this device to LK4, we gain an innovative solution for online electricity monitoring and setting events to optimize energy consumption in commercial, industrial and residential spaces. Thanks to its bidirectional operation, the meter can be used in measurements with photovoltaic installations.
The device is sold with a 100A/50mA CT (current transformer) with which it is calibrated to work.
Basic features
- Indirect measurement using an easy-to-install (split-core) current transformer.
- Bidirectional measurement - exported power is presented with a "-" sign. Energy is presented as import energy and export energy.
- Real-time Modbus reading: voltage, current, power, frequency, imported energy, exported energy, uptime.
- Device measurement accuracy: class B index.
- The monitor and the current transformer are calibrated with a reference device.
Technical specifications
| Power supply | 5-12 V DC (connector) 5 V (USB) |
|---|---|
| Rated AC input voltage | 230 V |
| AC current measurement range | 0 - 100 A |
| Power measurement deadband | 3 - 4 W |
| Interfaces | Modbus RTU (RS485), Serial (over USB; 115200 baud) |
| Dimensions | 74 x 40 x 30 mm (without DIN handle) |
| Weight | 50 g |
Legal Information
tMEM is an energy monitor intended for data collection and automation in electrical installations. It does not have MIB certificates, which are characteristic of energy meters. Therefore, it cannot be used for energy billing.
Additional information
More information about the device, usage, and custom Modbus module configuration for LK4/LK3.5+ is available at https://tinycontrol.pl/en/tmem/.
Safety Information
Important Safety Information for Using tMeM
Familiarization with the User Manual
Before using the device, thoroughly read this safety instruction manual and strictly adhere to all recommendations contained herein.
The manufacturer is not liable for any consequences resulting from failure to follow these instructions or from improper use of the device.
Protection Against Unauthorized Access
The device should be used in a location inaccessible to unauthorized persons, especially children.
It is recommended to install it in a closed electrical distribution board or a protective enclosure.
Installation and Connection Safety
• The device should be installed only in an electrical distribution board or in protective enclosure.
• Always disconnect the power supply before beginning installation.
• Connections should be made only by individuals with appropriate electrical qualifications and authorizations.
Technical Condition Inspection
Before each use, inspect the technical condition of the tMeM device.
Do not use the device if it is mechanically, electrically, or thermally damaged, as this may lead to electric shock, fire, or other hazardous situations.
Current Limitations of the Transformer
Before attaching the current transformer clamp:
• Check the maximum load current or total power consumption (in watts) of the devices whose wires will be encompassed.
• Ensure that the total current does not exceed the rated value of the current transformer, as indicated on its casing, packaging, or in the technical documentation (www.tinycontrol.pl).
• Do not replace the current transformer with a model of different parameters than the one provided by the manufacturer.
Usage Restrictions
Prohibition of Structural Modifications
It is prohibited to:
• Disassemble the device.
• Perform unauthorized repairs, modifications, alterations, or interfere with the electronic system or casing.
Repairs and Servicing
All repairs should be carried out only by qualified service personnel using original spare parts.
Removing the casing and attempting self-repairs may result in electric shock or fire.
Servicing should be entrusted only to qualified personnel.
Additional Information – Structural Safety
The device has been designed in accordance with applicable safety standards and does not contain hazardous substances or batteries.
