Intelligent Forward and Reverse Rotation 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 continuously monitoring and protecting mechanical equipment ranging from moderately critical to low-critical levels across multiple industrial sectors, applicable to petrochemical, oil & gas, power generation, water treatment, pulp and paper, machinery processing, mining, cement and other industries. It covers large rotating machinery including main 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, etc.

## Technical Specifications

3.5-inch touch screen with human-machine interface

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

Maximum rotational speed value memory function

Monitors zero speed of rotating machinery and outputs zero-speed alarm signals

Rotational speed sensor input (supporting 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 as default, 2-10V output optional)

4 channels of relay switch output (alarm, danger, zero speed, sensor fault); dynamic status indication for relays (250V AC 5A / 30V DC 5A)

Editable parameters for each channel including sensor type, alarm threshold, danger threshold, alarm delay, measuring range and others

### Temperature Characteristics

Storage temperature range: -50～+100℃

LCD screen operating temperature range: -20～+70℃

Circuit operating temperature range: -40～+85℃

### Electromagnetic Compatibility

EN 61000-6-4/A1:2011

EN 61000-6-2:2005