Intelligent Zero-Speed Monitoring Protector

This product delivers cost-effective continuous monitoring and protection functions for large rotating machinery. It is a specially designed and developed solution for continuous monitoring and protection of mechanical equipment ranging from moderately critical to low-critical units across multiple industrial sectors, applicable to petrochemical, oil & gas, power generation, water treatment, pulp and paper, machining, mining, cement and other industries. It covers large rotating machinery including large feed water pumps, chemical process pumps, large cooling tower fans, tunnel ventilators, blowers, induced draft fans, coal mills, centrifuges, mixers, large agitators, turbo compressors, reciprocating compressors, drive motors, generators, water turbines and more.

# Technical Specifications

3.5-inch touch screen with human-machine interface

Dual-channel rotational speed value display with resolution accuracy of ±1 RPM; proportional progress bar display with resolution accuracy of 1%, maximum measuring range up to 65,000 RPM

Max rotational speed value memory function

Zero-speed monitoring for rotating machinery with zero-speed alarm signal output

Rotational speed sensor input (supports eddy current, Hall effect and magnetoresistive speed sensors); real-time monitoring and display of sensor gap voltage

2 channels of analog output (4~20mA output by default, 2-10V output optional)

4 switch relay outputs (Alarm, Danger, Zero Speed, Sensor Fault) with dynamic relay status indication (250V AC 5A / 30V DC 5A)

Parameters including sensor type, alarm value, danger value, alarm delay and measuring range for each channel are editable

## Temperature Characteristics

Storage temperature range: -50～+100℃

LCD operating temperature range: -20～+70℃

Circuit operating temperature range: -40～+85℃

## Electromagnetic Compatibility

EN 61000-6-4/A1:2011

EN 61000-6-2:2005