I. Overview:
    SMA36JWYDC type angular displacement sensor is a kind of sensor used to measure the rotational position of the object with a linear relationship between the voltage output and the shaft rotation angle. Its characteristics are high precision, long life, good output smoothness; fully sealed and waterproof. Can be used as position feedback, angle detection.

2. the main technical parameters:

Working voltage (VDC) 14~36
Load resistance 250 to 1400 Ω (varies with supply voltage)
Output signal (mA) 4 to 20
Range specification (°) 0~90
Output smoothness (%) ≤ 0.05
Linearity (%) 0.1
Operating temperature range (°C) -55 to +125
Insulation resistance (MΩ) 1000 (500VDC)
Rotating load life (times) 50×106
Wiring sign Two-wire output, regardless of positive and negative wiring.

3.application examples:
     1. The SMA36JWYDC angular displacement sensor can be installed near the axis of the rotary shaft on the left side of the pumping unit beam (towards the "head of the donkey", looking straight back from the wellhead). When the pumping unit is working, the sensor detects the change of the beam angle of the pumping unit. The angle is the smallest when the polished rod reaches the bottom dead center, the angle is the largest when the donkey head reaches the top dead center, and then the pumping stroke and the stroke of the pumping unit are measured. data.
     2. crane crane arm angle measurement.
    3. Gate opening measurement.