SZMJ-302

Rotating Speed Recorder

This instrument is used for measuring rotating speed in a far distance and recording and transcribing the speed to achieve the aim of two-point rotating speed alarm, with the effect similar to SZMT-102.

The instrument can measure low rotating speed when matched with SZMB-3 sensor, and measure high rotating speed when matched with SZMB-0or SZMB-1 sensor.

Main Technical Parameters

Operating conditions:the instrument can operate normally at the ambient temperature of 5℃~+40℃and the relative humidity of less than 85%.

Basic error:the basic indication error of the instrument should not exceed ±1% of measurement upper limit at the ambient temperature of 20℃±2℃and the relative humidity of less than 85%.

Temperature influence:the indicating value change of the instrument should not exceed the absolute value of basic error limit every time the temperature is changed by 10℃when the temperature is changed from 20℃±2℃to 5℃~+40℃.

Recording error:the recording error of the instrument is ±0.5% of indication error.

Additional Electric Connection

Spot capacity: 220V, 1A AC, or 30V, 0.5A DC; the setting range is 10%~90% of full scale.

Instrument power supply: 220V, 50Hz AC; the instrument can operate normally when the voltage change is ⁺¹⁰_-15% of rated value, and the frequency change is ±5% of rated value.

Consumption power: ≤12VA

Weight: about 3.7kg