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%