Electricity meters, type DTS-353 1L, DTS-353 1M and DTS-353 2M are simple and precise three-phase meters for active energy measurement. They are designed for secondary measurements of various appliances, offices and premises.
Properties
- Easy assembly;
- Simple connection and operation;
- High accuracy.
Technical data
| Precision class | 1 |
|---|---|
| Reference voltage [V] |
3 x 230/400 |
| Current range [A] |
10 (100) |
| Reference frequency [Hz] |
50 |
| Connection | direct |
| Data display | mechanical register - versions 1M and 2M; LCD – version 1L |
| Number of displayed digits | 6+1 – version 1L 6+1 – version 1M 5+1 – version 2M |
| Switching rates at execut. 2M (switching from the rate T0 to the rate T1) |
connecting an external voltage to the terminals: 10 (230 V AC), 11 (N) |
| Starting current [A] | ≤ 0,004 Ib |
| Power consumption |
≤ 0,6W; ≤ 0,3 VA verions 1L and 1M ≤ 2W; ≤ 8 VA version 2M |
| Meter constant [imp/kWh] |
800 |
| Impulse constant output [imp/kWh] |
800 |
| Standard |
EN61010-1(LVD directive), EN61326-1(EMC directive) |
| EMC environment* | protected (level 2) |
| Weight [g] | 390 – versions 1L and 1M 500 – version 2M |
*
According to EN61000-4-4
- partial suppression of EFT/B (Electrical fast transient / Burst) in the power supply (1 kV) and control circuit (0,5 kV), which are switched only by relays (no contactors)
- physical separation of unshielded power supply and communication cables.
According to EN61000-4-5
- cables are well separated, even at short runs. Surge voltages may not exceed 1 kV.