MOTORSCOPE Description

The new range of Motorscope units measure RMS voltage and current.  [RMS measurement?!?]

All Motorscope units can be powered from a generator.

NOTE:  This description is applicable to all Motorscope protection units.

Motorscope units protect against:

MOTORSCOPE CONCEPT

The power used by a working system varies with the application but must stay within safe limits. Power consumption outside of this range indicates a faulty motor or system.  The load or power consumption is measured at the input to the motor. When the calibration button is pressed, with the jumper in place, the Motorscope defines the safe range for the system. The motor must, at that time, run under normal working conditions. The power supply has to be correct and stable, this is checked continuously. The Motorscope keeps the motor running as long as the safe limits are not exceeded.

Phase rotation is checked at startup. Phase failure is checked continuously under normal running conditions. 

Graphical display of the power consumption curve of an electrical AC motor with default limits and delays.

Explanation of terms used in graph:

The Motorscope has a RS232 output for serial communication with our Optimizer or a PC (through our Downloader). The Optimizer is used to improve settings, as an installation aid and for more detailed fault indication. The Optimizer can carry the data of the last 43 motor stops to be transferred to a PC (through our Downloader). You can find more information on the Optimizer and Downloader by going to Motorscope Utilities.

RMS MEASUREMENT CONCEPT

In short, the RMS (Root Mean Square) method of measuring voltage and current has the following advantages: