HZ-821 Digital eddy current displacement sensorDetailed product description：

HZ-821 digital eddy current displacement sensor
Introduction: This transmitter is used in conjunction with eddy current sensors, mainly for measuring axial displacement, differential expansion or shaft vibration of rotating machinery, as well as coating thickness. It is small in size, easy to install, and can be connected to computers, PLCs, DCS and other equipment.

The HZ-821 digital eddy current displacement sensor is widely used for measuring and protecting axial displacement of large rotating machinery (such as steam turbines, compressors, motors, fans, pumps, etc.) in the power, metallurgy, petrochemical, and paper industries. Equipped with LCD display for easy on-site installation, with 4-20mA output and two relay outputs, and can set the range and alarm value on site.

DC power supply:+24VDC ± 10%
Output signal: 4~20mA (load ≤ 500 Ω)
Measurement range: ± 0.5mm - ± 2mm
Alarm set point: 2 points (alert, danger)
Relay status: Constant power loss
Alarm relay output: 2 sets of normally open relays (caution, danger)
Contact capacity: 250VAC/3A or 30VDC/3A
Alarm delay: selectable within 1-9 seconds
Accuracy: 1%
Working temperature: -20~70 ℃
Relative humidity: 20-95% without condensation
Dimensions: Height x Length x Depth=120mm x 90mm x 75mm
3. Selection Guide
HZ821—A□—B□
Sensor selection A □: 1- Φ 8mm; 2-Ф11mm； 3-Ф18mm； 4-25mm
Range B □: 1-1.0~1.0mm; 2-1.5~1.5mm; 3- -2.0～2.0mm；10mm.