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M478 LED M478.


365 RUB
97 UAH
72 pieces

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LED M478 (M 478, M-478)
LED M478 is designed to work in DC for level monitoring and recording voltage transistor tape recorders.
Vibration, tryaskoprochny.
Technical characteristics of the instrument lights M478:
Current full deflection - 40mkA-300mkA.
The device LED M478 used at an ambient temperature of -10 º C to +45 ° C and relative humidity up to 95% (25 ° C).
Current full deflection device M478 indicator depends on the modification of fees and is shown below:
Modification of the device
M478 / 1
M478 / 2
M478 / 3
M478 / 4
M478 / 5
Current full deflection
Basic error - ± 5%;
The internal resistance of the device LED M478 - 400 ohms.
Integration time indicators - 150ms-300ms.
Scale Length - 28mm.
LED device M478 is designed to work in any position of the scale.
Changing the readings does not exceed ± 5% of full scale at a deviation of ambient temperature of 20 º C ± 5 ° C (class H) for every 10 degrees and under the influence of an external magnetic field of 400 A / m, formed by direct current, under the most unfavorable the field direction.
Changing the zero position indicator device M478 influenced placed back to back with him of the same indicator to this is at a distance of at least 1 m, not more than 0.5 mm.
Dimensions - 21h18h28mm.
Weight of the device LED M478 - 0,025 kg.
Case against dust and splash-proof design.
Instrument scale indicator M478 are two sectors
- From 0 º to 60 ° - sector level monitoring records;
- From 60 º to 80 ° - sector control voltage (8V to 13V) power supply.
60 ° end of the first sector refers to the maximum recording tape.
Measuring equipment unit indicator M478 magnetoelectric system.
The minimum probability of failure of the device for 20,000 hours of work not less than 0.75 at a confidence level of 0.8.
Average life - 6 years.
The manufacturer guarantees that the quality of the instrument display M478 technical requirements specifications provided the customer terms and conditions of storage, transportation, installation, operation, and its specified operational documentation.

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