1. Widely used in cement, building materials, metallurgy, mining, electricity, chemical industry etc of ball grinder measuring grind sound.
2. The product is light and installation is convenient.
3. High ability in resisting electrical current and voltage surge.
4. With wide frequency range and good response.
5. Active filter, with frequency selection characteristic.
6. Grind sound signals is steady and smooth.
7. With good directivity and small interference.
8. The calibration signal, interior can calibrate.
9. Grind sound sensor is full-sealing. It well suits to the bad conditions with high humidity and high dust.
10. Connect with computer to forming a grind control system to increase production, prevent full grinding and empty grinding, reduce labor intensity and improve labor productivity.
11. Full digital calibration and function setting. There is no need to adjust by potentiometer.
12. Power-off protection function: when debugging, the parameters that write to the memory will still be saved.
The Grind Sound Measuring Instrument (Electric Ear) is a specialized acoustic device designed for cement mill monitoring and ball grinder operations in industries such as cement, metallurgy, and mining. As a critical component of modern cement plant monitoring systems, it features a fully sealed sensor that resists high humidity and dust, delivering stable and accurate grind sound signals with excellent directivity. By connecting to a computer control system for advanced cement process monitoring, it helps prevent full or empty grinding, optimizing production efficiency and reducing labor intensity through precise acoustic cement plant equipment monitoring.
Measurement range | 0%～100% |
Probe impedance | 600Ω±15% |
Frequency response | 50HZ～18000HZ |
Sensibility | 73dB±2dB |
Input sound intensity signal | 4MA～20MA |
Measurement error | ±0.1% |
Constant current accuracy | when load changes, the output current changes better than 0.5% |
Working temperature | －5℃～＋70℃ |
Environment humidity | ＜85% |
Supply voltage | input:50Hz,220V±10％ |
Box size | 73*150*160mm (H*W*D) |
Loading capacity | <2K |
Q1: How does this instrument benefit cement plant operations monitoring and the building sector?
A: This Grind Sound Measuring Instrument is extensively applied in cement plant equipment monitoring to monitor ball grinder performance. By accurately measuring grind sound, it helps form a grind control system that prevents issues like full grinding and empty grinding, thereby increasing production and reducing labor intensity.
Q2: How does the instrument handle harsh environmental conditions like dust and humidity?
A: The grind sound sensor features a full-sealing design that is specifically engineered to withstand bad conditions with high humidity and high dust. With a frequency response range of 50Hz to 18000Hz and good directivity, it maintains small interference and delivers steady, smooth signals even in challenging industrial environments.
Q3: Is calibration difficult, and what happens if there is a power outage?
A: The instrument features full digital calibration and function setting, eliminating the need for manual potentiometer adjustments. The calibration signal can be performed internally. Additionally, it has a power-off protection function that ensures all parameters written to memory during debugging are saved, preventing data loss during unexpected power interruptions.
Q4: How does the Electric Ear integrate with broader cement plant monitoring strategies?
A: While visual and thermal systems handle kiln monitoring, the Electric Ear provides essential acoustic data specifically for cement mill monitoring. It outputs a standard 4-20mA signal that seamlessly integrates with your central DCS or PLC, enabling comprehensive 24/7 cement plant monitoring and automated feed control to maximize grinding efficiency.
User manuals, video tutorials, and on-site training (upon request)
Whatsapp: +86-15312392280
E-mail: hedy@lmgd-cctv.com
ADD: Building #1, Liandong U Valley, No.900 Chenfeng Road, Jintan Economic and Development Zone, Changzhou City, Jiangsu Province
