Continuous improvement of your power grid!

With that thought in mind we designed one flexible and highly configurable power grid monitoring platform that allows multiple hardware and software configurations. It measures and makes additional calculations of the electrical characteristics (current, voltage, phase angle, energy, frequency, etc.) of the power grid. The data can then be sent through analog outputs or communication interfaces for further control, notification or visualization tasks.

The platform is originally equipped with the ZekaStream™ technology allowing high speed data logging within the microseconds range. This makes the device a highly valuable tool for catching transients and analyzing high-speed processes. Only one device with such a technology in your design is enough to change the way you commission the whole power plant.

Having numerous communication interfaces including Ethernet, RS485 and CANBus and utilizing Modbus, makes the integration with your industrial network an easy task. Profibus interface is also available using the GreenBee Industrial Gateway communication bridge.

Several digital and analog inputs and outputs are available for additional programming allowing extra flexibility during the system design or even when the project is in its final phase. The integrated Modbus master allows different Modbus slaves to be attached to extend IO and functionality.

The major application area is monitoring of heavily loaded power grids and their components. This brings knowledge allowing easily allocating problems and reducing energy costs.

The MoniBee Power Grid Monitor devices are power monitoring tools that give sufficient information to commissioning engineers and operators to diagnose the system health thus making adaptation and improvement a continuous process.

They have already been integrated in some very complex Megawatt power plants and proved to be an extremely valuable tool during the commissioning process. This includes the already operating latest Transocean drillships of type Ultradeep Water including the ones with the first hybrid drill-floor in the world.


Technical specification



6x Analog Inputs

±300 Vp

9x Analog Inputs

±1.5 Ap or ±20 mA

1x Analog Inputs

0-20 mA

4x Analog outputs

±10 V

3x PWM outputs

Parameter controlled (20 mA max, 24V max)

16x Digital Inputs

+24V - +110V (> 15V on)

12x Digital outputs

External Power Supply: Up to 125 V, 200mA

4x relay outputs

250 Vac / 5A, 30 Vdc / 3 A

Power supply

24 V ± 10 % / 1 A

Dimensions (W x L x H)

330 x 190 x 47 mm


0.8 kg

Operating temperature

5 °C - 55 °C

Protection class

IP 20


96 %, not condensing


Communication interfaces



1x Modbus RTU slave


1x Modbus RTU master


1x Modbus TCP slave


1x CAN






IEC 61000-4-4:2004

Electrical fast transient (Burst) ( 2 kV power , 1 kV signal )

IEC 61000-4-5:2006

Surge voltage ( 0.5 kV L-L , 1 kV L-GND )

BDS EN 61000-4-6:2009

Conducted radio frequency interference ( 3 Vrms / 150 kHz – 80 MHz )

IEC 61000-4-2:2009

Electrostatic discharge ( 6 kV contact , 6 kV air )

IEC 61000-4-3:2006

Electromagnetic field ( 10 V/m, 80 MHz – 2 GHz )

BDS EN 60068-2-6:2008

Environmental testing, Vibration - Test Fc ( 5 – 11 Hz / 1mm, 11 – 100 Hz/ 0.7g)

BDS EN 55016-2-1:2009

Conducted disturbance measurement

(DNV-OS-D202-2-4, Table 4-3 Class A)

BDS EN 55016-2-3:2010

Radiated disturbance measurement

(DNV-OS-D202-2-4, Table 4-3 Class A)

BDS EN 60068-2-1:2007

Environmental testing – Test A: Cold ( 5 °C)

BDS EN 60068-2-2:2008

Environmental testing – Test B: Dry heat ( 55 °C)

BDS EN 60068-2-78:2013

Environmental testing – Test Cab: Damp heat ( 40 °C)


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