Intelligent Zero 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 medium-critical to low-critical importance across multiple industrial sectors, and is applicable to petrochemical, oil and 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, etc.

## Technical Specifications

3.5-inch touch screen for 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%, and a maximum measuring range of 65000 RPM

Function to record the maximum measured rotational speed value

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

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

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

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

Parameters including sensor type, alarm threshold, danger threshold, alarm delay and measuring range can be modified for each channel

### 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