Noise monitoring system EE-ENMS-01

environmentalpollutioncompact

Product Overview
Noise Monitoring System EE-ENMS-01 is a Class 1 noise monitoring system developed by Engineering & Environmental Solutions, utilizing MEMS technology to deliver high-quality, real-time noise data. It is designed for smart city and infrastructure applications, offering remote updates and seamless data transfer for effective noise pollution control.

• Ultrasonic transit time principle
• Supports wide range of connectivity
• Over-the-Air Update

Features
Tamperproof: Equipped with a security system to prevent tampering, malfunction, or sabotage.
Over-the-Air Update: Allows automatic updates from a central server without the need for onsite visits.
Internal Storage: Offers up to 8 GB of internal storage, capable of storing 90 days of data.
Real-Time Data: Continuous monitoring and real-time data transfer at configurable intervals.
Solar Powered with Battery Backup: Compatible with solar power to charge the internal battery.
Quick Sensing: Enables threshold-based sensing.
Retrofit Design: Plug-and-play design for easy implementation.
Compact: Lightweight and compact, suitable for installation at 4-5 feet height.
Network Agnostic: Supports a wide range of connectivity options including GSM, WiFi, Ethernet, and Modbus.
Weather Resistant: IP66 grade certified enclosure for harsh weather conditions.
On-Site Device Calibration: Capable of onsite calibration using dedicated software.

Technical Specifications
Display
128X128 dot matrix liquid crystal display (LCD), resolution 0.1dB, displays parameters such as Lp, Leq, LAE, L5, L10, L150, L90, L95, Lmax, Lmin, LCpeak, etc. Low battery voltage and other signs. Overload, under-limit, low battery voltage and other signs are available.
Internal Storage
8 GB
Network Agnostic
Supports a wide range of connectivity options like GSM/WiFi/Ethernet Modbus
Ingress Protection
IP66
Installation Height
Pole/Wall (Preferably 270° open surrounding) 4-5 feet
Operating temperature
-10°C to 50°C
Performance level
GB/T3785 & IEC61672 class 1
International standard
IEC 61672:2013 'Sound Level Meter' for Class 1 sound level meter

Sensor Specifications
Type | Details
Measured evaluation quantity | LP (time weighted sound level) or Lmax (maximum time weighted sound level), Lmin (minimum time weighted sound level), LCpeak (C weighted peak sound level).
Microphone | Prepolarized Condenser Class 1 Engineering Measurement Microphone, nominal diameter 12.7 mm, free field frequency response. Nominal sound pressure sensitivity is 50 mV/Pa (nominal sound pressure sensitivity level is -26 dB, reference value 1 V).
1/1 octave bands | 8Hz, 16Hz, 31.5Hz, 63Hz, 125Hz, 250Hz, 500Hz, 1kHz, 2kHz, 4kHz, 8kHz, 16kHz, A C Z F S are supported
1/3 octave bands | 6.3Hz, 8Hz, 10Hz, 12.5Hz, 16Hz, 20Hz, 25Hz, 31.5Hz, 40Hz, 50Hz, 63Hz, 80Hz, 100Hz, 125Hz, 160Hz, 200Hz, 250Hz, 315Hz, 400Hz, 500Hz, 630Hz, 800Hz, 1kHz, 1.25kHz, 1.6kHz, 2kHz, 2.5kHz, 3.15kHz, 4kHz, 5kHz, 6.3kHz, 8kHz, 10kHz, 12.5kHz, 16kHz, 20kHz, A C Z F S are supported
Measurement range | 30dB-130dB(A), 40dB-130dB(C), 45dB-130dB(Z)
Threshold setting range | 30 dB to 130 dB, if the sound level exceeds the threshold, a threshold exceeding flag is given and a high level is output.
Preset time | Manually set, measurement duration is 1s - 99h 59min 59s
Automatic calibration range | ± 4.5 dB (reference value is 50mV/Pa)
Output | RS485

Power Source
Analog output | The output jack is a 3.5mm dual channel headphone jack with a minimum load impedance of 10K Ω.
AC voltage Output | The output voltage has a linear relationship with the measured sound pressure, corresponding to the upper limit of the measurement range, and the root mean square value of the output voltage is 2.0V
Power Supply | 220V to 12V

Applications

• Suitable for all conductive application.
• From clean liquid to slurries and pastes with high solids content.
• Energy measurement in commercial building
• Abrasion, chemical & vacuum resistance
• Suitable for high temperatures.

Key Benefits
E&E Products deliver eco-friendly solutions that reduce emissions, improve energy efficiency, and minimize waste. Designed for sustainability, these products help create cleaner air, safer water, and a healthier planet.

Frequently Asked Questions

• The noise monitor provides precise, Class 1 noise measurements essential for regulatory compliance. Real-time data and remote monitoring allow facilities and government agencies to identify noise sources quickly and take immediate corrective actions, ensuring adherence to noise pollution standards.
• For extensive sites or urban infrastructures, the noise monitor delivers robust performance through real-time monitoring, remote software updates, and secure data transfer. This allows decision-makers to maintain consistent noise tracking across multiple locations, crucial for environmental impact assessments and urban noise management.
• The noise monitor can be integrated into existing environmental monitoring systems.

Characteristics / Technical Specifications

• Model: EE-ENMS-01
• Class 1 noise monitoring system
• MEMS technology
• Real-time data transfer
• Remote updates (OTA)
• Internal storage: 8 GB
• IP66 enclosure
• Operating temperature: -10°C to 50°C
• Display: 128x128 LCD
• Connectivity: GSM, WiFi, Ethernet, Modbus
• Power supply: 220V to 12V, solar compatible
• Microphone: Prepolarized condenser, 12.7 mm
• Measurement range: 30-130 dB(A), 40-130 dB(C), 45-130 dB(Z)
• Output: RS485, 3.5mm analog, AC voltage
• Compliance: IEC 61672:2013, GB/T3785