Range: 0r/min ~ 3000 r / min
Ratio: 1:2 (other specifications, the proportion of time in order to determine agreement between the parties by the supply and demand)
Accuracy class: 1.5
Normal working conditions:
Temperature: -10 ℃ ~ 50 ℃
Relative humidity: not more than 85%
Atmospheric pressure: 86kPa ~ 100kPa
Work
Temperature effects: When the temperature increases from 20 ℃ ± 5 ℃ change to -10 ℃ ± 50 ℃, its indication of changes in conversion as per change in temperature should not exceed 10 ℃ basic error limit of absolute value.
Mainly by the permanent magnet sensors and induction coil composed of permanent magnets and power devices connected through the flexible shaft. When the permanent magnet is driven in rotation after the induction coil current, by wire transfer to the indicator, after step-down driven through the ammeter to indicate the measured speed wide-angle quick.
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