Wattmeter D5104 (D 5104, D-5104)
Designed for accurate power measurement in single-phase AC and DC circuits, and also for testing less precise instruments.
Accuracy class 0.1.
Rated current: 100mA, 200mA.
Rated voltage: 30V, 75V, 150V, 300V, 450V, 600V.
Wattmeter D5104 designed for accurate power measurement in single-phase AC and DC circuits, and also for testing less precise instruments.
D5104 is designed for use in moderate climate in enclosed dry heated rooms at the ambient temperature of 10 to 35 ° C and a relative humidity of 80% at a temperature of 25 ° C.
Wattmeter D5104-04.1 is designed for use in both dry and humid tropical climate in closed rooms with air conditioned or partially air-conditioned at the ambient temperature from 1 to 45 ° C and a relative humidity of 80% at a temperature of 25 ° C.
Wattmeters D5104 accuracy class 0.1 in accordance with GOST 8476-78. Major instrumental parameters are listed in the table. Rated power factor is equal to 1 watt meter.
Current branch circuit power meter (5 ± 0,1) mA. The normal frequency range power meter from 45 to 65 Hz, work area - more than 65 to 500 Hz.
Standard conditions for use appliance wattmeter D5104:
Ambient temperature 20 ° C (when the front part of the device is not explicitly stated otherwise.) permissible deviation of ± 2 ° C;
ambient relative humidity of 30-80% atmospheric pressure 84-106 kPa (630-795 mm Hg);
the orientation of the device relative to the magnetic field of the earth - any;
external magnetic field (besides the earth's field) is almost absent;
ferromagnetic base is absent;
waveform distortion factor of voltage and current is not more than 5%:
Frequency - within the normal region;
voltage for the power meter - rated with a tolerance of ± 2%;
power factor - nominal;
the potential difference between parallel and serial connections wattmeter virtually absent;
position of the device - the horizontal;
measurements are carried out after the establishment of the operating mode.
Maximum permissible error of the instrument wattmeter D5104 in the normal range of frequencies and direct current is ± 0,1% of the final value of the measuring range. The limit of additional instrument error caused by the frequency deviation from the upper limit of normal values to any frequency in the working frequency range is ± 0,1% of the final value of the measuring range.
The limit of additional error WATTMETER D5104, caused by a deflection voltage of ± 20% of nominal value, at a constant value of the measured power is ± 0,1% of the final value of the measuring range. Response time instrument does not exceed 3 seconds. The limit of additional error wattmeter D5104 instrument caused by changes in ambient-temperature from normal to any temperature within the operating range is ± 0,1% of the final value of the measuring range for each 10 ° C change in temperature.
The limit of additional error D5104 instrument caused by the influence of external homogeneous constant or variable (frequency within the normal range of frequencies) of the magnetic field with an induction of 0.1 mT, is equal to ± 0,1% of the final value of the measuring range.
Dining lighting circuit device is supplied from the AC voltage (220 ± 22) V, 50-60 Hz through a step-down transformer, can be combined with the unit, or from a DC or AC voltage (4 ± 0,4) B. For devices supplied on specific orders, the voltage and frequency of the supply chain illumination light index correspond to those indicated in the order. Dimensions: unit - (205 ± 1,45) x (230 ± 1,6) x (135 ± 2,0) mm, transformer housing - no more 65h85x45mm. Weight does not exceed: the device - 4.3 kg; transformer - 0.5 kg.