Wall-mounted Intelligent Key Phase Rotational 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-criticality levels 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 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 other large rotating machinery.

## 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 65000 RPM

Maximum rotational speed value memory function

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

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

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

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

Adjustable parameters including sensor type, alarm threshold, danger threshold, alarm delay and measuring range 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