Reference equipment SONEL ERS-2, MS-3-U, MMS-1, etc.

ERS-2 calibrators are used as reference equipment for checking meters of electrical safety parameters of the MRP, MIE, MPI series according to the parameter: RCD shutdown time. With the use of additional switching, it is possible to use a calibrator for checking third-party RCD parameter meters.

The electrical resistance calibrators of the KS series provide reproduction of electrical resistance in the range from 50 kOhm to 10 volts. The required resistance is set by the user using the instrument keypad. Each modification in the series has its own key features.

Inductors are used as reference equipment for checking meters of electrical safety parameters of the MZC, MPI and other series according to the parameters: reactive and total resistance of the "phase-zero", "phase-phase", "phase-protective conductor" circuits. The characteristics of inductors allow their use for verification of short circuit loop meters of all manufacturers.

Electrical resistance stores of the MS series are used as reference equipment for checking electrical safety parameters meters of the MRU, MRP, MPI, MZC series according to the parameters: resistance of the grounding device, contact voltage, resistance of protective conductors. The characteristics of the stores also allow their use for checking other types of electrical resistance meters.

Electrical resistance stores of the MS-3-U series are designed to reproduce electrical resistance to direct and alternating current. The stores have 3 decades involved, which provides step-by-step resistance regulation and are presented in 6 modifications in the general range from 1 ohm to 111 mOhm.

MMC-1 is designed to simulate and set the measure of the active resistance of a short-circuit loop of an electrical network with a voltage of 220 / 380V, 50 Hz AC. The required resistance is set by the user using the store's decade switches.

The measure RN-1-P provides the setting of the active resistance from the series: 0.05 ohms; 0.45 ohms; 0.5 ohms; 0.8 ohms; 1.25 ohms; 1.3 ohms; 1.6 ohms; 2.05 ohms; 2.1 ohms. It is used to simulate and set small values of active resistance in electrical systems with a voltage of 220/380 V and a frequency of 50 Hz AC.

Electrical resistance measures The unambiguous MESO series are designed to reproduce the electrical resistance to direct current.