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.
|
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 |
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