Electricity measuring modules

Description

The electricity measuring module is available with one channel or three channels and is used for measuring the
consumption or electricity production on one or several switching circuits or phases.
Typical applications for these modules:

• measuring the total electricity consumption of the dwelling that is connected to a single-phase supply network.

• measuring the total consumption of the home connected to a three-phase network 3P+N (400 Vac) or 3P (3 x 230 Vac)

• measuring the amount of energy generated by photovoltaic solar panels.
• measuring the consumption of specific circuits such as the upper floor of a house.
• assessing which devices are heavy electricity users.

Overview

Operation

The measuring module measures the electrical current in one or several conductors via the current clamps supplied. The module measures the voltage of the phase to be measured via the connection terminals. By measuring both electrical current and voltage, the installation can accurately assess how much electricity is consumed or produced in the home.
All values measured are sent to the Niko Home Control installation and are saved on your connected controller, providing you with insight into your total electricity consumption and the electricity production. The eco-display shows the total electricity consumption and the electricity production, if applicable. A detailed overview of these data can be requested via the touchscreen, a smartphone or the Niko Home Control energy software.

• The measuring module should not be used for billing purposes. Only the data recorded by the meter of the energy supplier are valid for billing purposes. The data recorded by the measuring module should be used for information purposes only.
• Do not use the measuring module to measure direct current components.
• Do not extend or shorten the connection wire of the current clamps to ensure that measurements are accurate.

Selecting the correct measuring module

Select an electricity measuring module with one channel or an electricity measuring module with three channels, based
on the number and type of channels you wish to measure. Alternatively, the electricity consumption can be measured by a
pulse counter provided that the electricity meter is fitted with a pulse output. See Pulse counter.

A maximum of 20 channels can be measured per installation.

The electricity measuring module with three channels can be used for:

• measuring a three-phase connection (3N 400 Vac).
• measuring three individual switching circuits (1 x 230 Vac).

Use the programming software to select the operating mode of the electricity measuring module with three channels.
Make a selection based on the table below:

* The measuring data is then stored in the memory of the connected controller. 

Installation

Wiring diagrams for measuring modules with one channel

This product must be secured with a miniature circuit breaker (MCB) of max. 16 A in the electrical cabinet. The MCB rating is limited by national installation rules.

Purpose*	Wiring diagram
Measuring the total consumption of the installation
Measuring the amount of solar energy supplied by your solar panels, battery or hybrid inverter
Measuring one or several switching circuits

*Measuring data for information purposes only, not valid for invoicing.

Wiring diagrams for measuring modules with three channels

This product must be secured with a miniature circuit breaker (MCB) of max. 16 A in the electrical cabinet. The MCB rating is limited by national installation rules.

Purpose*	Wiring diagram
Measuring the total consumption on a connection of 3N 400 Vac
Measuring the total consumption on a connection of 3P (3 x 230 Vac)
Measuring three individual circuits

*Measuring data for information purposes only, not valid for invoicing.

Installing measuring modules

Follow the steps below to install the electricity measuring module:

• Ensure that the installation is disconnected from the mains.
• Always measure voltage and current on the same phase.
• The cable of the current clamp supplied with the module is calibrated. Do not shorten or extend this cable.

1. Press the measuring module onto the DIN rail until it clicks into place.

2. Clip the current clamp around the conductor(s) of the switching circuit(s) of which the electricity consumption or production is to be measured.

   

   • The L side of the current clamp must point away from the main meter. The K side of the clamp must point towards the main meter.
   • The arrow located on the current clamp must point away from the main meter. However, if you want to measure the amount of solar energy delivered by your solar panels, battery or hybrid inverter, the arrow must point away from the inverter.

   Several switching circuits on the same phase can be measured by one single current clamp. One current clamp can be fitted around several different conductors.

   

   Remember to take into account the direction of the current.
3. Connect the wires of the current clamp to the +/- screw terminals of the measuring module. Make sure to respect the polarity: connect the red wire to the + screw terminal and the black wire to the - screw terminal.
4. Connect the switching circuit(s) to the L/N screw terminals of the measuring module. If you wish to measure the electricity consumption or production of several switching circuits on the same phase, you simply need to connect one of the switching circuits to the module.
5. Connect the measuring module to the module before it. Slide the sliding contact of this module to the right until it clicks into the measuring module. This will ensure that the bus and the power supply voltage are connected.
   
   

Swapping of:

• the L/N screw terminals of the measuring module or
• the +/- screw terminals of the current clamp or
• the L side and K side of the current clamp

will not damage the measuring module nor the installation. However, doing so will reverse the sign of the value measured, which means that the graphs displayed may contain errors.
Provided that everything is installed correctly, the electricity consumption will always be displayed as apositive number whilst the amount of electricity generated (e.g. by solar panels) will always be displayed as a negative number. You can verify this via the eco-display or the touchscreen

Programming measuring modules

Use the programming software to select the currency of your choice: EUR, GBP or SEK. The following settings can be
selected per channel:

• channel name.
• single-phase or three-phase use.
• type of channel: global (meter from the energy supplier), sub-measurement consumption, sub-measurement amount of electricity generated

• If the voltage at the power supply of the Niko Home Control installation is disrupted, no data will be logged, even if electricity is still being consumed or produced by the switching circuits measured.
• You will lose all data of a channel if you use the programming software to:
  • remove the channel.
  • change the energy type (electricity/gas/water).
  • change the measurement type.
  • change the load type.

Error codes

When the module is functioning properly, the STATUS LED will light up in TEST mode only. If one or several errors occur, the LED will blink to indicate the error code of the error with the highest priority. The table below provides an overview of all error codes.

Technical data

Electricity measuring module with one channel

• measuring range with current clamp supplied: 5 - 11 490 W, 22 mA - 63 A
• measuring range with current clamp 550-00809: 90 - 27 600 W, 400 mA – 120 A
• input voltage: 230 Vac
• 1 current clamp (included)
• accuracy: IEC62053-21 class 1 (R), class 2 (L)
• single-phase connection: 230 Vac, 50 Hz
• maximum cable thickness for the included current clamp: 1 x 10 mm² or 6 x 2.5 mm² or 9 x 1.5 mm²
• maximum cable thickness for the current clamp 550-00809: 4 x 10 mm² or 12 x 2.5 mm² or 20 x 1.5 mm²
• length of the connector cable at the current clamp: 100 cm
• not suited to measuring direct current components
• measuring data only for information purposes, not valid for invoicing
• 4 screw terminals to measure the voltage of the connected switching circuit
• 2 screw terminals to connect the current clamp supplied
• sliding contact to connect the module to the following module on the DIN rail
• dimensions: DIN 2E
• CE marked
• ambient temperature: 0 - 45 °C
  
  

Electricity measuring module with three channels

• measuring range with current clamps supplied: 5 - 14 490 W, 22 mA - 63 A
• measuring range with current clamp 550-00809: 90 - 27 600 W, 400 mA – 120 A
• maximum measuring range of the entire measuring module: 32768 W
• input voltage: 230 Vac
• 3 current clamps (included)
• accuracy: IEC 62053-21 class 1 (R), class 2 (L)
  Applies to 3P+N (400 Vac), 50 Hz and a single-phase supply network (230 Vac), 50 Hz. 
  Three-phase network: 3P (3 x 230 Vac), 50 Hz, measuring accuracy may decrease compared to when 2 measuring clamps are used 
• connection:
  - three-phase: 3P+N (400 Vac), 50 Hz 
  -three-phase: 3P (3 x 230 Vac), 50 Hz 
  - single-phase: three switching circuits of 230 Vac, 50 Hz
• maximum cable thickness for the included current clamps: 1 x 10 mm² or 6 x 2.5 mm² or 9 x 1.5 mm²
• maximum cable thickness for the current clamp 550-00809: 4 x 10 mm² or 12 x 12.5 mm² or 20 x 1.5 mm²
• length of the connector cable at each current clamp: 100 cm
• not suited to measuring direct current components
• measuring data only for information purposes, not valid for invoicing
• 3 x 2 screw terminals to measure the voltage of the connected switching circuits
• 3 x 2 screw terminals to connect the current clamps supplied
• sliding contact to connect the module to the following module on the DIN rail
• dimensions: DIN 4E
• CE marked
• ambient temperature: 0 - 45 °C

Current clamp 120 A

• expands the measuring range of the measuring modules up to 90 - 27600 W, 400 mA – 120 A per channel
• specify the type of current clamp during programming
• can be locked/unlocked up to ± 100 times
• length of the connector cable at the current clamp: 100 cm (may not be shortened or lengthened)
• maximum cable thickness for the current clamp: 4 x 10 mm² or 12 x 12.5 mm² or 20 x 1.5 mm²
• accuracy: IEC 62053-21 class 1 (R), class 2 (L)
• minimum insulation resistance: 100 MΩ (between core and output terminals)
• weight: 75 g
• ambient temperature: -20 - 50 °C
• dimensions: 55 x 29.5 x 31 mm (HxWxD)
• CE marked