Model SML 133 - Multi-Functional 3 Phase Digital Panel Meter
From Panel Meters
SML 133 is a basic 3-phase multimeter with large bright segment LCD display. Instrument is designed for load or generation monitoring in single-phase and three-phase low, medium and high voltage networks. It monitors actual value of frequency, line and phase voltages, currents, unbalances, active and reactive powers, power factors and up to 50 voltage and current harmonics as well as the total harmonic distortions. Measurement of actual temperature within a control panel is also supported with an in-built temperature sensor.
Optional relay or impulse outputs can be programme...
Optional relay or impulse outputs can be programmed to control other equipment based on measured values (fan control, overvoltage/overcurrent etc). Impulse outputs can also work as an S0 pulse output for the embedded electricity meter. Optional communication interface allows it to be simply configured and managed via ENVIS application on PC from a remote PC. In combination with ENVIS.Online service its actual values can be also periodically downloaded and stored to the SQL database for further processing.
Specifications
Typical applications: replacement of analog or digital panel meters, in remote energy management and smart metering, for industrial automatization, submetering, replacement of SML 33 and similar PMDs.
Characteristic features
- measuring multimeter of actual network data
- 4 or 6 quadrant, three-phase energy meter (kWh, kvarh)
- alternatively registers apparent energy also in kVAh (bivector electricity meter funtion)
- pulse outputs and programmable alarm relays (option RR, RI, II)
- single-phase, three-phase or Aron connection
- direct & indirect voltage and current connection (can specify VT and CT ratio)
- precise continuous measurement, 128 samples/period, independent 6.4 kHz sampling
- voltage and current: class 0.5 / 0.2 according to 61557-12
- energy: active 0.5, reactive class 1 according to 61557-12, 62053-22 resp. -23
- built-in temperature sensor, binary input (state or pulse)
- optional remote RS 485 or 10/100Mbit RJ45 Ethernet communication
- optional inputs for special split core and throughole CTs (option P and S)
Data Acquisition and Processing
SML 133 instruments can optionally be equipped with a remote communication port (RS485, RS232 or Ethernet). As such it can be connected to any SCADA software with Modbus TCP or Modbus RTU protocol support. ENVIS software is supported and can be used to configure the instrument, to read out actual data from connected instruments. It stores them in archive or database and creates reports and analysis.
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