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D335, D335/1

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Wattmeter D335, D335/1 varmetr (D 335, D-335)
 
Wattmeter D335, D335/1 varmetr is designed to measure active and reactive power in three-phase AC circuits, 50 Hz.
Dimensions - 120h120h95mm.
Accuracy class - 1.5.
Vibration resistant, vibration.
 
Technical characteristics of the devices wattmeters D335, D335/1 varmetry:
 
Devices for flush mounting, self-indicating.
Devices wattmeter D335, D335 varmetr / 1 used to work at an ambient temperature of -40 º C to +50 ° C and relative humidity up to 95% (at 35 ° C).
Rated power factor wattmeter cosγ = 1, for varmetrov sinγ = 1.
Wattmeter D335, D335 varmetr / 1 are the nominal current, voltage, and the final values ​​of the scale, a similar device type D309.
Accuracy class of devices - 1.5.
Settling time - ≤ 4 sec.
Operating position of instruments wattmeter D335, D335/1 varmetr - vertical.
The nature of the scale - even.
The change of reading wattmeter D335, D335/1 varmetr due to the deviation of the ambient temperature of 20 º C to ± 5 ° C (class H) does not exceed ± 0,8% for every 10 degrees;
- Under the influence of external magnetic field strength of 400 A / m - not more than ± 2,5%;
- When installing the product on a ferromagnetic shield 3mm thick - does not exceed ± 1,0%;
- Changing the order of the phases in comparison with the indicated on the instrument wattmeter D335, D335/1 varmetr - does not exceed ± 1,5%.
Overall dimensions - 120X120X96mm.
Unit weight wattmeter D335, D335/1 varmetr - 1.0 kg.
On design features include a pointer devices, with a uniform one-sided and two-sided scale, with a measurement range covering the entire length of the scale, the mechanical counteracting moment, with a movable part on extensions.
Devices wattmeter D335, D335/1 varmetr are ferrodinamicheskuyu measurement system.
The minimum probability of failure-free operation for 500 hours of testing not less than 0.92 at a confidence level 0.85.

Photos D335, D335/1

D335 front view (scale).
D335 front view (scale).
D335 side view (casing depth).
D335 side view (casing depth).
D335 rear view (connection).
D335 rear view (connection).


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