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SEM

SEM

SEM meter has LCD for display of active energy in one tariff. Meters register active energy irrespectively of energy direction, i.e. the registration takes place on the same register at +A. The LED pulse output is active in both energy directions, too.

Features:

Measuring

Meter operates in singe-phase electricity networks and independently from current flow direction measure:
  • Active energy with accuracy class 1.0 or 2.0 (IEC 62053-21)

Outputs

  • LED test output for active energy (LED 1)
  • Two status indicators (LEDS):
    • LED 2 - Meter malfunction;
    • LED 3 - Reverse current flow

Data storage

SEM meter has non-volatile memory, which allows to store metering data without influence of power outages. 

Display

The meter is equipped with LCD (Liquid crystal display). LCD contains 8 digits (7 for whole numbers and 1 digit for decimal numbers). LCD displays:
  • Measuring energy value and dimension;
  • Load indication.
Technical Specification:

Ratings

 
System Single-Phase 2-wire
Accuracy class Class 1.0 or Class 2.0
Reference voltage, Un 100V; 120V; 127V; 220V; 230V;
special on request
Reference (maximum) current, Ib (Imax) 5(60) A; 5(40) A; 5(30) A; 10(60) A
Current threshold 0,4% Ib
Reference Frequency, Hz 50 or 60
Meter constant, imp/kWh 2000
Power consumption:
In voltage circuit
In current circuit

< 0,5W; < 1 VA
< 0,05 VA
Temperature ranges:
Meter operating
Meter storage

-40°C to +60°C
-40°C to +70°C

Case & Dimensions

 
Case Bakelite
Insulation Protective class II
Dimensions, mm 215x134x110

Downloads:

More information about the meter available to download can be found here