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Nano Sensorics PowerSense

The LoRaWAN submeter for energy measurement

The Nano Sensorics PowerSense is a DIN-rail submeter for measuring energy consumption, power factor, tariffs and other electrical parameters for energy monitoring, energy management and submetering. The device is designed for indoor use and is installed with splitable, non-invasive current transformers (split-core CTs) that can be clamped around the existing cable without interrupting the circuit.

The PowerSense operates three-phase and reliably records bidirectional power, current, voltage, power factor and harmonic distortion. The data is transmitted to energy or building management systems or SCADA systems. The degree of protection is up to IP30, so that the PowerSense can be easily integrated into industrial environments.

Data transmission is performed via a Class A LoRaWAN® radio network; alternatively, communication is also possible via Modbus. According to the manufacturer, the PowerSense is suitable for commercial, public, warehouse and logistics buildings as well as industrial facilities and helps to save electrical energy and predict the maintenance requirements of systems.

Electrical parameters in detail

The PowerSense records a wide range of electrical measured variables for professional energy monitoring.

Currents up to 800 A

Measurement via split-core current transformers, designed for different current levels depending on the selected option.

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Bidirectional power

Recording of power flow in both directions, for example for systems with feed-in and consumption.

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Voltage, current & power factor

Complete recording of the most important electrical parameters including power factor.

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Harmonic distortion

Measurement of harmonic distortion to assess grid quality.

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Tariffs

Recording of tariff information for differentiated billing and evaluation.

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3-phase

Suitable for use in three-phase electrical systems.

How the PowerSense is designed

The PowerSense is designed as a DIN-rail device for mounting in the control cabinet and works with external, non-invasive current transformers. The connection diagram is also printed directly on the device.

1

DIN-rail housing

The base unit is mounted on a DIN rail in the control cabinet and is designed for indoor operation with a degree of protection of up to IP30.

2

Voltage inputs (V1, V2, V3, VN)

The three phase voltages and the neutral conductor are connected via fused voltage inputs to L1, L2, L3 and N.

3

Split-core current transformer inputs (I11/I12, I21/I22, I31/I32)

The actual current measurement is performed via external, splitable current transformers that can be clamped around the cable to be measured without interrupting the circuit. One current transformer is connected per phase; the transformers are designed for different cable diameters and current levels depending on the model.

4

Digital inputs

Digital inputs enable additional control and measurement functions, for example the integration of external signals or switching operations.

5

Power supply

The PowerSense is operated via a 95–250 V AC/DC mains supply; in addition, a battery is installed that supports efficient data processing. The mains supply is mandatory for the actual measurements.

6

LoRaWAN radio module & antenna connection

Data transmission is performed via an integrated LoRaWAN radio module with external antenna connection; alternatively, optional Modbus communication is available.

Operation via the front panel

The device has a small LC display and two front buttons with which measured values can be displayed and basic parameters set:

“Display / Select” button

In display mode, this button is used to scroll through the available measured values (e.g. kWh import, voltages, currents, powers, operating hours). In configuration mode, it jumps to the next setting parameter or increases the selected digit or scrolls through the selection list.

“Enter / Change mode” button

Holding for two seconds switches between primary display and setup configuration mode. In configuration mode, the button selects a parameter for editing; the value then flashes during input. For numerical values, the cursor jumps step by step to the left until the new value is saved at the end.

The primary display shows the value “kWh Import” by default. If no buttons have been pressed for 25 seconds, the display automatically returns to the primary display.

Basic setup parameters

The following basic parameters are set on the device for correct commissioning:

  • PW – Password: Access protection for the configuration
  • PT1 / PT2 – Voltage transformer ratio: Primary and secondary voltage of the voltage path
  • CT1 / CT2 – Current transformer ratio: Primary and secondary current of the selected current transformer
  • ID – Device address: Address for Modbus communication

Integration into the LoRaWAN network

The DevEUI required for integration is affixed on a sticker below the front panel of the device. After onboarding into the respective LoRaWAN platform using the supplied keys, the PowerSense automatically transmits its measured data every 15 minutes.

Four current transformer variants depending on current level

The matching split-core current transformer is selected depending on the maximum expected current level and the existing cable diameter. All variants offer accuracy class 0.5 and a 2-metre connection cable.

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Please note: The desired current transformer option must be selected above the shopping cart button. Select the current transformer to match the maximum operating current and the diameter of the cable to be measured.

Option 1 – 100 A

Split-core current transformer, accuracy 0.5, 2 m cable length, opening 16 mm.

Option 2 – 200 A

Split-core current transformer, accuracy 0.5, 2 m cable length, opening 24 mm.

Option 3 – 400 A

Split-core current transformer, accuracy 0.5, 2 m cable length, opening 35 mm.

Option 4 – 800 A

Split-core current transformer, accuracy 0.5, 2 m cable length, opening 80 x 50 mm.

Reliable radio connection over long distances

The PowerSense uses LoRaWAN® for energy-efficient and long-range data transmission to energy, building management or SCADA systems.

  • Communication technology LoRaWAN®, optionally also via Modbus
  • Data transmission up to 10 km range
  • Class A LoRaWAN® radio network
  • Robust encryption protects the transmission against unauthorised access

Why LoRaWAN-based energy measurement

According to the manufacturer, the combination of PowerSense and LoRaWAN® brings several concrete advantages for energy monitoring – both in commercial and private environments.

Long range

LoRaWAN transmits consumption data over several kilometres, completely without repeaters – suitable for urban as well as rural locations.

Low energy consumption

The low power consumption of LoRaWAN technology ensures a long runtime and reduced maintenance costs – a sustainable and cost-efficient approach for long-term energy monitoring.

High accuracy & reliability

Precise measured values help to identify energy waste, optimise consumption and reduce electricity costs.

Easy installation & scalability

Quick commissioning as well as a scalable architecture that can be flexibly integrated into existing systems or expanded with additional circuits and devices.

Real-time data & analyses

Remote access to current consumption data and trends enables proactive energy management based on sound, up-to-date information.

Increased security

Robust encryption protocols of LoRaWAN protect the data transmission between submeter and central system against unauthorised access.

Cost-efficient

Less complex cabling and infrastructure reduce both installation and operating costs.

Integration into smart grid systems

Seamless integration into smart grid systems supports demand-response strategies, grid stability and overall higher energy efficiency.

Positive environmental impact

Detailed insights into energy consumption help to reduce the CO2 footprint and promote sustainable energy practices.

What energy monitoring brings in operation

The manufacturer lists several concrete benefits that continuous monitoring of the electrical system provides for building and energy management systems.

  • Timely consumption data: enable noticeable electricity savings and reduce CO2 emissions
  • Precise measurement: accurate recording of electrical parameters and energy consumption
  • Anomaly detection: early indications of irregularities in electricity consumption and generation
  • Load analysis: key figures on the effectiveness of electrical loads as a basis for energy savings
  • Automated adaptation: BMS systems can quickly adapt energy consumption in buildings, offices, warehouses or industrial facilities
  • Lower CO2 footprint: support for more environmentally friendly building operation

Areas of application

According to the manufacturer, the PowerSense is suitable for a wide range of commercial, industrial and private energy monitoring tasks.

  • Commercial buildings and office complexes
  • Public buildings
  • Warehouse and logistics buildings
  • Industrial facilities
  • Submetering of individual circuits or rental units
  • Integration into smart grid and SCADA systems

The Nano Sensorics PowerSense combines precise, non-invasive current measurement for three-phase systems with energy-efficient LoRaWAN connectivity – a practical solution for energy monitoring, submetering and building management in commercial and industrial environments.

Frequently asked questions

What is the Nano Sensorics PowerSense and what is it used for?

The PowerSense is a DIN-rail submeter that measures electrical parameters such as energy consumption, power factor and tariffs via LoRaWAN. It is used for energy monitoring, energy management and submetering in commercial, warehouse and industrial buildings.

Which current transformer options are available?

Four split-core current transformers are available: 100 A (16 mm opening), 200 A (24 mm), 400 A (35 mm) and 800 A (80 x 50 mm). All variants offer accuracy class 0.5 and a 2 m cable.

Does the circuit need to be interrupted for installation?

No. The split-core current transformers are non-invasive and can be clamped around the existing cable without interrupting the circuit.

How is the PowerSense powered?

The device is operated via a 95–250 V AC/DC mains supply; in addition, a battery is installed that supports data processing. The mains supply is mandatory for the actual measurements.

How is the PowerSense integrated into the LoRaWAN network?

The DevEUI is located on a sticker below the front panel. After onboarding using the supplied keys, the device automatically sends its measured data to the connected platform every 15 minutes.

How are measured values displayed on the device and basic parameters set?

Using the “▼” button, you can scroll through the measured values in display mode; in configuration mode it is used for value input. Holding the “↩” button for two seconds switches between display and configuration mode and selects a parameter for editing there. Basic parameters such as password, voltage and current transformer ratio (PT1/PT2, CT1/CT2) and the device address (ID) are set this way.

Is a connection other than LoRaWAN possible?

Yes. In addition to LoRaWAN® communication, the PowerSense optionally also offers a Modbus connection.

Questions about the PowerSense?

Our support team in Germany will advise you free of charge on selection, installation and configuration.

Datasheets
Datasheet 1

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Datasheet 1 (547.74 KB)
Datasheet 2

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Datasheet 2 (1.96 MB)

Nano Sensorics PowerSense

General Data

  • 3-phase LoRaWAN® energy meter for DIN rail mounting
  • Comprehensive measurement of electrical energy consumption and other electrical parameters
  • Suitable for energy monitoring, energy management and submetering
  • Measurement of energy consumption, power factor, frequency, voltage and current
  • Advanced measurement functions for power quality and harmonics
  • Support for tariffs, load profiles and maximum demand values

Key Measured Quantities

  • Energy consumption:
    • kWh
    • kvarh
    • kVAh total
    • Total / Net
  • Power factor (PF), total and per phase
  • Frequency
  • ULN and ULL per phase as well as average value
  • Current per phase and average value
  • Calculated neutral current
  • Device operating time in hours

Advanced Measured Quantities

  • Voltage and current THD
  • TOHD and TEHD
  • Individual harmonics up to the 31st harmonic
  • Current TDD
  • TDD Odd and TDD Even
  • K-Factor
  • Crest Factor
  • Voltage and current unbalance
  • Phase angle
  • Fundamental power kW and power factor
  • kvarh Q1 ~ Q4
  • Current, predicted and maximum demand values for kW, kvar and kVA
  • Total current and current per phase with timestamp:
    • Current month
    • Last month
    • Since last reset
    • Before last reset

Voltage Inputs

  • Rated voltage: 277 V L-N / 480 V L-L
  • Measuring range: 20 ~ 277 V L-N / 35 ~ 480 V L-L
  • Frequency range: 45 ~ 65 Hz
  • Burden: <2 W per phase
  • Input impedance: 5 MΩ
  • Overload capacity: 750 VAC L-L

Current Inputs

  • Rated current: 40 mA
  • Measuring range: 0.15 ~ 100 % In
  • Starting current: 0.15 % In
  • Burden: <0.25 VA per phase
  • Measuring range of external current transformers: 5 mA ~ 6 A
  • Supported external current transformers: 100 A, 200 A, 400 A, 800 A and 1600 A / 40 mA

Measurement Accuracy

  • CT voltage: ±0.5 %, resolution 0.01 V
  • Current: ±0.5 %, resolution 0.001 A
  • kW, kvar, kVA: ±1.0 %, resolution 0.001 kX
  • kWh, kVAh: IEC 62053-21:2003, Class 1, resolution 0.01 kWh
  • kvarh: IEC 62053-23:2003, Class 2, resolution 0.01 kvarh
  • Power factor: ±1.0 %, resolution 0.001
  • Frequency: ±0.02 Hz, resolution 0.01 Hz
  • THD: IEC 61000-4-7, Class II, resolution 0.001 %
  • Neutral current In (calibrated): ±1.0 %, resolution 0.001 A

Mounting & Enclosure

  • Mounting: DIN rail
  • Protection class: IP30
  • Dimensions: 95 × 72 mm

Power Supply

  • Standard: 95 ~ 250 VAC/DC ±10 %
  • Frequency range: 47 ~ 440 Hz
  • Power consumption: <2 W
  • Overvoltage category: CAT III up to 300 V L-N

Optional Digital Inputs

  • Inputs: DI1, DI2, DI3, DI4, DIC
  • Type: potential-free contact
  • Input voltage: 24 VDC
  • Sampling rate: 1000 Hz
  • Hysteresis: at least 1 ms

Optional Digital Outputs

  • Outputs: DO11, DO12, DO21, DO22
  • Type: Form A mechanical relay
  • Switching capacity: 5 A at 250 VAC or 30 VDC

Communication

  • LoRaWAN®: LoRaWAN® Specification 1.0.2
  • Standard radio region: EU863-870
  • Optionally supported regions: EU863-870, AU915-928, EU433, AS923
  • Modbus RTU via RS-485
  • RS-485 baud rate: 1,200 ~ 38,400 bit/s

Optional Energy Pulse Output

  • Solid-state energy pulse output: E1+, E1-, E2+, E2-
  • Selectable pulse measurement for kWh or kvarh
  • Pulse constant: 10 / 100 / 1000 / 3200 imp/kWh
  • Optical isolation
  • Maximum load voltage: 80 V
  • Maximum forward current: 50 mA
  • Pulse width: 80 ±20 ms

Environmental Conditions

  • Operating temperature: -25 °C ~ +70 °C
  • Storage temperature: -40 °C ~ +85 °C

EMC Compatibility

  • Electrostatic discharge: EN 61000-4-2:2009
  • Surge voltages: EN 61000-4-5:2014+A1:2017
  • Magnetic fields: EN 61000-4-8:2010

Optional Split-Core Current Transformers

  • Option 1: 100 A split-core current transformer, accuracy 0.5, 2 m cable, opening 16 mm
  • Option 2: 200 A split-core current transformer, accuracy 0.5, 2 m cable, opening 24 mm
  • Option 3: 400 A split-core current transformer, accuracy 0.5, 2 m cable, opening 35 mm
  • Option 4: 800 A split-core current transformer, accuracy 0.5, 2 m cable, opening 80 × 50 mm

Application Areas

  • Industrial facilities
  • Commercial facilities
  • Measurement in utility and substation environments
  • Submetering and cost center allocation in smart buildings and facilities
  • Building automation
  • Factory and process automation
  • Energy management
  • Power quality monitoring

Manufacturer information:

UAB “Nano sensorics” 

Elektrenu str. 7 

51193 Kaunas
Litauen 

Telefon: +370 61461649 

Email: info@nanosensorics.com

Responsible person:

Didactum® Security GmbH

Im Mühlenfeld 4

48163 Münster
Deutschland

Fon: (+49) 250 19 71 63 54 / (+49) 171 33 11 577

Email: info@didactum-security.de

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