ZWJ

ZWJ  axial displacement monitor
Brand: Baoji Xirui
Delivery time: one week
WS


1、 Overview:
ZWJ axial displacement monitoring instrument is a unit structure axial displacement monitoring instrument for main shaft. The monitor takes the single chip microcomputer as the core processor, and is equipped with non-contact eddy current displacement sensor and preamplifier to monitor the axial displacement of the main shaft during the operation of the water turbine generator unit.


2、 Performance parameters:
■ Input signal: one circuit of eddy current sensor signal;
■ Measuring range: 0~20.00mm (or determined by the user);
■ Measurement accuracy: ± 0.01mm;
■ Sensitivity: 5V/mm (or 2.5V/mm);
■ Frequency response: 0.5Hz~250Hz;
■ Display mode: 8-digit digital tube display;
■ Provide sensor working power supply: DC ± 12V;
■ Output analog signal: DC4~20mA (load resistance ≤ 525V);
■ Output alarm signal: contact form: normally open contact capacity: AC220V 5A/DC24V 5A
■ Alarm setting value: two-level alarm output (set arbitrarily within the range);
■ Instrument working power supply; AC220V±10％ 50Hz；
■ Power consumption: 10W;
■ Operating environment: temperature 0 ～ ＋ 45 ℃; Relative humidity ≤ 90%


3、 Working principle:
ZWJ axial displacement monitor consists of eddy current sensor, monitoring instrument, connecting cable and other components. The eddy current sensor monitors the axial displacement of the spindle and sends it to the monitoring instrument after low-pass filtering, anti-interference processing and output drive. The monitoring instrument displays the received shaft displacement signal, outputs two-level alarm contacts, and outputs analog signals corresponding to the displayed value. Two level alarm can be set.