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wattmeter & nbsp; D50561 & nbsp; is & nbsp; for accurate power measurement in circuits AC and DC
& nbsp.; Specifications
& nbsp; & nbsp; & nbsp; & nbsp; D50561 & nbsp wattmeters; accuracy class 0.1 GOST 8476-78 immediately after setting the operating mode and during any time of continuous operation .
& nbsp; & nbsp; & nbsp; & nbsp; The main instrument settings & nbsp; D50561 & nbsp; are listed in the table. Rated power factor wattmeter 1.0. Rated current 5mA wattmeter parallel circuit. Normal frequency region wattmeters 45 to 65 Hz, the working area of 65 to 500 Hz
& nbsp;. & Nbsp; & nbsp; & nbsp; Maximum permissible additional error devices & nbsp; D50561 caused frequency deviation from an upper normal region to the boundary any value in a working frequency region equal to & plusmn; 0.1% of the final value of the measurement range,
& nbsp; & nbsp; & nbsp; & nbsp; Maximum permissible additional error wattmeter & nbsp; D50561, caused by the change of voltage on & plusmn; 20% of its nominal value at a constant value of the measured power is equal to & plusmn; 0,1% of the final value of the measurement range & nbsp;. Response time unit no more than 4
& nbsp;. & nbsp; & nbsp; & nbsp; Maximum permissible additional error devices & nbsp; D50561, caused by changes in ambient temperature air from (20 & plusmn; 2) & deg; C to any temperature within the operating range for every 10 & deg; C does not exceed & plusmn; 0.1% of the final value of the measuring range
& nbsp;. & nbsp; & nbsp; & nbsp ; Maximum permissible additional error devices & nbsp; D50561, caused by the influence of the external homogeneous DC or AC (frequency within the normal field frequency) magnetic field with induction 0.5 mT, is & plusmn; 0,5% of the final value range and measuring
& nbsp;. & nbsp; & nbsp; & nbsp; Power circuit luminous pointer lighting devices & nbsp; D50561 & nbsp; produced by the AC voltage (220 & plusmn; 22) & nbsp; & nbsp; frequency of 50-60Hz transformer, can be combined with the device, either directly from the source of direct or alternating voltage 4B
& nbsp; & nbsp; & nbsp; & nbsp; Dimensions device & nbsp; wattmeter D50561:. 205h290h135 mm. Weight of the device is not more than 4.5 kg. Overall size of the transformer housing: 65x85x45 mm. transformer Weight not more than 0.5 kg
& nbsp;.
wattmeter D50561
Rated current, A
The final value of the measurement range, W, for nominal voltages
