Maiņstrāvas jaudas analizators

The AC power analyser is a multifunction measuring device designed to monitor your electrical installation. It allows real-time visualization of voltage, current, frequency, power factor (Cos Phi), and apparent power from your AC sources (shore power, generator, or inverter).

Depending on the selected mode, the device measures and displays AC voltage, AC current, frequency, apparent power (VA), power factor (Cos Phi), MasterBus network voltage, and the device's temperature.

When configured on the MasterBus network, you can choose between three operating modes: shore power (Shore), generator power (Generator), or inverter power (Inverter).

Current is measured indirectly using a current transformer (split-core current sensor) with a 100:5 ratio. This component is supplied with the analyzer and ensures optimal isolation and accuracy.

Yes, this module is designed to withstand harsh marine environments. It has an IP65 protection rating, making it fully protected against dust and water jets.

The analyzer is a very compact module. It measures 80 x 181 x 28 mm (height x width x depth) and weighs only 0.53 kg, making it easy to integrate into tight spaces.

The device is shipped complete for standard installation. The box contains:

AC power analyzerMasterBus cableMasterBus terminator100:5 current transformerUser manual

This analyser stands out for its ability to serve as a specific MasterBus interface for Mass Sine range converters from Mastervolt, thanks to its dedicated RJ12 port.

The device includes a programmable dry contact (potential-free) capable of switching a relay with a maximum capacity of 5A at 250V. This allows automation of certain functions in your electrical system, such as the automatic start of a generator.

Control and configuration of the analyzer are entirely based on the MasterBus network. You will need a compatible display, such as the MasterView Easy panel or the MasterView System software, to view measurements and configure the device.

The AC power analyzer is compatible with standard electrical grids. During initial setup, you can select a nominal voltage of 120V AC or 230V AC.

The device has several indicators:

Yellow LED (Mode): indicates the relay status.Green LED (AC ok): signals the presence of AC power without errors.Red LED (AC fail): alerts to voltage or frequency out of limits.Green LED (MasterBus): indicates the network communication status.

Never connect a non-MasterBus device directly to the MasterBus network. To integrate third-party equipment with the Mastervolt network, use a dedicated interface such as the Modbus interface.

Connection is made very simply by using standard UTP patch cables. The analyzer has two MasterBus ports to be daisy-chained with other network devices. Do not forget to place a terminator at both ends of the network.

No, the MasterBus network must be installed as a linear daisy chain. Creating ring networks (loops) or T-connections is strictly discouraged, as it may disrupt data communication.

No, the current transformer with a 100:5 ratio is included with the AC power analyzer. You do not need to purchase it separately to take current measurements.

If voltage, current or frequency values exceed the configured limits, the red "AC fail" LED lights up continuously and an alarm can be triggered on your MasterBus display to alert you to the issue.

Yes, via the MasterBus network's event system, you can configure the analyzer to initiate an action on another connected device. For example, it can command a generator to start if shore power becomes insufficient.

To connect the AC power analyzer to a Mass Sine converter, use the dedicated communication port on the analyzer and connect it with a cable equipped with an RJ12 connector.