Electrical measuring instruments >> analog panel meters >> phase meters >> single-phase meters


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Phase meter D31 (D 31, D-31)
D31 phase meter is designed to measure the power factor (cosγ) in AC networks 50Hz, 500Hz, 1000Hz, 8000Hz and 2400Gts.
Dimensions - 120h120h120mm.
Accuracy class - 2.5.
Resistant to shaking.
Technical characteristics of the devices phasemeter D31:
Instruments used to work at ambient temperatures from -30 º C to +40 ° C and relative humidity up to 90% (at 30 ° C).
Measurement range of the instrument in the D31 phase meter values ​​cosγ - 0,5-1-0,5.
Accuracy class - 2.5.
Consumed by the device phase meter D31 power in accordance with an operating frequency of the network - 3C ∙ A ∙ A 65V
Settling time - ≤ 4 sec.
Working position of the instrument phase meter D31 - vertical.
The nature of the scale - uneven.
Changing the phase meter readings D31, due to the deviation of the ambient temperature of 20 º C ± 5 ° C (class H) does not exceed ± 2% for every 10 degrees;
- Under the influence of external magnetic field strength of 400 A / m at a frequency of 1000 Hz, 160 A / m at a frequency of up to 50A and 2400Gts / m at a frequency of 8000Hz to - does not exceed ± 5%;
- Due to voltage fluctuation of ± 10% - less than ± 2,5%;
- When the instrument is in the ferromagnetic phase meter D31 shield 3mm thick - should not exceed ± 1%.
Unit weight - 1kg.
Electrodynamic instrument measuring mechanism phase meter D31 - for cores placed in a plastic case is included in the network through the measuring current and voltage transformers.
The minimum probability of failure-free operation of the instrument D31 phase meter up to 500 hours of testing not less than 0.85 at a confidence level of 0.8.

Photos D31

D31 front view (scale).
D31 front view (scale).
D31 side view (casing depth).
D31 side view (casing depth).
D31 rear view (connection).
D31 rear view (connection).

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