Installation for testing voltmeters V1-8 (V 1-8, V-1-8, b1-8, b-1-8, b 1-8)
Is designed to determine the error of indication of analog voltmeter AC and DC subband of 10mkV to 300V in the laboratory.
Installation for testing voltmeters V1-8 are designed to determine the error of indication of analog voltmeter AC and DC subband of 10mkV to 300V in the laboratory. Furthermore, the installation can be used as a source of calibrated voltage for calibrating the various instruments.
Normal operating conditions:
ambient temperature (20 ± 5) ° C ((293 ± 5) K);
relative humidity 30-80%;
atmospheric pressure (84-104) kPa ((630-795) mm Hg);
the power supply voltage (220 ± 4,4 V, (50 ± 0,2) Hz.
ambient temperature from 10 ° C (283 K) and 35 ° C (308 K);
relative humidity 90% at 30 ° C (303 K);
atmospheric pressure (84-104) kPa / (630-795) mmHg /;
voltage n Ethan (220-22), frequency (50 ± 0,2) Hz (220 ± 11) V, (400 +28 / -12) Hz.
Installation for testing voltmeters V1-8 provides AC and DC voltage up to 300V 10mkV. In this setting gives rms, maximum and srednevypryamlennoe AC voltage and DC voltage of either polarity with nominal values corresponding to the number of 0.4, 0.5, 0.6, 0.7, 0.8, 0.9, 1.0 , 1.5, 2.0, 2.5, 3.0, and stresses that differ from the nominal values ranging from minus 5 to plus 5% from minus 10 to plus 10%.
The basic error of nominal output voltage does not exceed t ± (0,15 +0,0003 / U nom)% - DC, ± (0,3 + 0,0003 / U nom)% for AC, where U nom - the nominal output voltage, V output voltage accuracy at a deviation from the nominal value of ± 5% at constant current does not exceed ± (0, 25 + 0,0003 / U nom)% for AC - ± (0,4 + 0,0003 / U nom)%, and with a deviation of ± 10% at constant current does not exceed ± (0,25 + 0 0003 / U nom)%, on an alternating current - ± (0,5 +0,0003 U nom)%.
Installation for testing voltmeters V1-8 produces an alternating voltage frequency of 45, 400 and 1000 Hz. The error fixed frequency does not exceed ± 5%. The variable component of the DC output voltage of either polarity is less than ± 0,01% of the nominal output voltage.
Harmonic Distortion Output voltage alternating current does not exceed 0.2%. Additional error nominal output voltages caused by the deviation of the ambient temperature from normal to any temperature within the operating temperature range does not exceed half of the maximum permissible basic error of the DC and the maximum permissible basic error on alternating current for every 10 ° C change in temperature. Additional error of nominal output voltage values due to changes in humidity and temperature of the environment in the working conditions, does not exceed twice the value, the maximum permissible basic error on direct current. Additional error of the output voltage caused by the deviation of the voltage at 50 Hz from the nominal value by ± 10% and a frequency of 400 Hz ± 5%, no more than half of the maximum permissible basic error.
Installation for testing voltmeters V1-8 enables calibration of voltmeters with an input impedance of at least 100 kW. Additional error of the output voltage setting caused by external load 100 ohms, does not exceed 0.15%.
DC output voltage at the socket for connecting an external device to the impedance at least 1 Mohm is (100 ± 2) mV error index scale mounted on end of the scale.
The time setting of the output voltage does not exceed 10. The unit provides its specifications after samoprogreva time of 30 minutes under normal conditions and 1 h - in the field.
Installation for testing voltmeters V1-8 retains its specifications from eating it from the AC voltage (220-22), frequency (50 ± 0,2) Hz, harmonic content up to 5% and the voltage (220 ± 11) , frequency (400 +28 / -12) Hz and harmonic content to 5%.
The power consumed by the installation of the network, at the rated voltage not exceeding 130 V • A. Installation allows continuous operation under the operating conditions for 8 hours while maintaining their performance. Note. Time continuous operation includes time samoprogreva installation.
Overall dimensions 490x255x475.mm. Dimensions of packing box 740x373x616 mm. Dimensions of packing box for spare property 415x76x245 mm. Overall dimensions of the transport container 1064x562x768 mm. Unit weight not exceeding 30 kg. Weight of the box to the housing with the replacement property is not more than 58 kg. Mass of spares to the housing compartment is not more than 4 kg. Weight of the transport container with no more than 110 kg. MTBF 8250 hours lifetime 10 years. Lifespan of 15,000 hrs