NE3961/NE3961EAxial displacement transmitter

The vibration signal sampled by the sensor is linearized and normalized by the transmitter, and then directly output as a 4-20mA signal. The integrated bearing vibration transmitter eliminates the need for a transmitter or instrument, reduces wiring and installation steps, and lowers the failure rate. It modularizes the filtering, signal normalization processing, signal output, and other functions of the traditional external preamplifier and instrument parts, enhancing system integration, reducing size, and improving reliability. This product adopts low-power devices and circuits, built-in acceleration chip, two-wire output, to improve stability and service life. The matching safety sensor is suitable for explosion-proof places. The surface mount technology used makes the product structure compact, greatly reducing weight and volume, and lowering power consumption. At the same time, due to the integration of sensors and processing circuits, long-distance signal transmission is avoided, thereby improving resistance.

Technical indicators:

External power supply: 24V DC+5%
inputSignal: taken from the signal of the built-in vibration speed sensor
Sensitivity: 20mV/mm/s ± 5%
Frequency response: 5-300Hz
Range: 0-500um (peak to peak) or 0-50.0mm/s (true RMS)
Measurement error: ± 1% of full scale
Current output: 4-20mA (passive) output load ≤ 500 Ω
Temperature range: -25 ℃ to+65 ℃ during operation, -40 ℃ to+85 ℃ during storage
Relative humidity: up to 95%, non condensing

Equipped with a φ 8mm eddy current probe and extension cable, with a built-in eddy current preamplifier, it converts the peak to peak value of shaft vibration displacement into 4-20mA current output.
Frequency response: 5-3000Hz, ± 5%;
Zui Large Range: 0-600um pk pk;
Measurement accuracy: ± 3um pk pk