MM3-6A-4000


True RMS

Simple menu

High accuracy measurement

Possibility to lock the keyboard

Possibility to perform digital calibration in order fo eliminate CT error (for each phase separately)

Installation

Aland A? terminals: These terminals are 220 V inputs for the power supply of the system. CT RST: is for connecting the cument transformer (CT) of the R.5.T phase. R.S.T: is for R.S.T phase connection. MP: is for null phase connection.

Principles of Operation

Tih system is used for measuring voltage (phase and line). current. and frequency in three-phase networks. The crucial feature of this system is a True RMS measuring. The real effective value is measured by this feature. even in networks which have an inductive or capacitive load with abundant harmonics.

Attention: Input currents must be applied by external CT: otherwise the system would be damaged.

Attention: The used CT output should be 5 A. for example 300.5

Technical Specifications

Supply voltage: 180 to 240 Volts AC

Voltage measurement range: 10 to 500 Volts AC & Voltage input resistance: 1.2Ma

Adjustable CT value: 5 to & 4000 105

Current range (CT output): 40 mA to 5 amps AC Measurement accuracy: 0.5% FS

Storage temperature: -20° C to 83°C Operating temperature: -10° C to 60°C

Allowable humidity: 30% to 90%