AMS B2x-Fx for active, reactive and apparent energy, multirate, with RTC and data profiles

Single-phase static electricity meters AMS B2x-Fx are determined for measurement of active, reactive and apparent energy, instantaneous active, reactive and apparent maximum demand, voltage, current and P.F. in 2-wire networks in direct connection. They enable measurement of energy in rates controlled by internal clock (up to 4 rates) or externally controlled in two rates. The measured values stored in registers according to the OBIS codes are displayed on LCD in cyclic or stepping mode. The electricity meters can be parametrized and readout by using optical probe AMOS type and software supplied by the manufacturer. The testing pulses are signalling by a red LEDs separately for active and reactive energy. The meters can be produced in version with measurement in summary mode (measurement „using an unidirectional mechanical register“) or with measurement in separation mode (measurement of “consumption – supply”).

Properties

  • Measurement  of energy, power, voltage, current, power factor ... (+A, -A, +Ri, -Ri, +Rc, -Rc, +R, -R, +S, -S, +P, -P, Pmax, U, I, cos j...);
  • Historical records of the selected registers, created in the end of month - maximum 15 month historical records;
  • Event records (about influence of magnetic field, missing voltage, covers removal,...) – number of events with date of their occurrence;
  • Data record in three independent profiles with selectable channels (20 channels);
  • Passive impulse SO outputs (particularly for active and reactive energy);
  • Communication interface: optical, RS485 or Mesh (with internal or external antenna);
  • Possible versions with disconnection function with SCS (Supply control switch), relay 1 and relay 2. The disconnection method is defined by modes 0 to 6;
  • Welded case on a customer request;
  • Removable and adjustable upper hinge is included in the package;
  • Compliance with IEC/EN 62052-11, IEC/EN 62053-21; EN 50470-1, EN 50470-3 and with requirements of European Parliament and EC Directive 2014/32/EU (MID);
  • Electricity meter is delivered with conformity assessment (initial verification) for active energy billing purposes.

Technical data

Accuracy class

A, B (MID); 2, 1 (EN 62053-21);
2 and 3 for reactive energy (IEC 62053-23)
Reference voltage [V] 220, 230, 240 (-30,+15%)
Reference frequency [Hz] 50 (± 2 %)
Reference current Iref [A]
5 and 10
Transient current ltr [A]
0,5 and 1 
Starting current Ist [A]  ≤ 0,02  
Minimal current Imin [A]
0,25 and 0,5 
Maximal current Imax [A]
60 (DIN terminal block)
100 (BS terminal block) 
Power consumption - voltage circuit  [VA/W] ≤ 3,0 / 1,7 (including RS 485)
Power consumption - current circuit [VA] ≤ 0,02
Operating temperature  - 40 °C up to + 70 °C
Mean temperature coefficient [%/K] ≤ 0,04
Impulse constatnt for test output kTO [imp/kWh] Parametrizable: 1 up to 30000, default value: 5000
Mechanical and electromagnetic environment
M1, E2
Terminals current ; voltage ; auxiliary [mm] BS (DIN)
ø 8 ; ø 3 ; ø 3 (ø 7 ; ø 3 ; ø 3)
Weight [kg]
≤ 0,6
Meter dimensions - w x h/h´ x d [mm] BS (DIN)
130 x 129/190 x 60
(130 x 122/171 x 60)
Fixing holes distance - w x h [mm] BS (DIN) 104 - 112 x 115 - 155
(92 - 112 x 115 - 155)
Degree of protection  IP53 
ISM – Mesh communication [MHz] 
868 - 870
Output power
Default: 25,119 mW (14 dBm); optional 1 mW (0 dBm), 10 mW (10 dBm), 25,119 mW (14 dBm); 316,228 mW (25 dBm); 501,187 mW (27 dBm)
Range for ISM Mesh for direct connection [m] 150 for internal antenna; 300 for external antenna
Range for ISM Mesh in buildings with obstacles [m]  25 for internal antenna; 50 for external antenna
Number of nodes ISM – Mesh 256
RS485 half-duplex – transmission speed [Bd] 
9600, 19200