PLACID PNSRTW-Mk3
Wireless Measurement Microphone Logger
The PNSRTW-Mk3 is a MEMS based wireless smart integrating sound level meter / datalogger complying with Class 1 accuracy with cloud access.
Technology
Basics
PLACID’s smart integrating sound level meter / data logger, 3rd generation, MEMS microphone, Class 1 with build in 128 MB recording, accessible with fast USB download as well as wireless data transmission. Reporting, alarms for noise monitoring, audio recording.
Running on an internal battery it can record sound levels for 1 weeks, if connected to an external USB charger or small A4 sized solar panel it can record for months.
As all PLACID microphones, the PNSRT-Mk3 comes with an individually calibration certificate.
Connectivity
The PNSRTW-Mk3 is a complete integrated set, in- or outdoor wireless sound level meter and/or data logger. Wireless connection build in.
Uses
Online Sound level and acoustic dose measurements and recording, monitoring of safe working conditions, activity detection and logging, noise impact studies (long term measurements), weatherproof ready to be used outdoors (no cabinet needed).
Daily usage
PLACID recommends regular calibration however MEMS microphones are extremely stable.
Individual calibration
All PLACID measurement microphones set are being calibrated in a controlled laboratory environment using traceable calibration equipment complying with ISO17025 standards.
PLACID Traceable Calibration is performed by our qualified staff and under controlled conditions according to the procedures and standards such as ISO17025.
Quality
All PLACID microphones are made of high-quality materials that will ensure long stability and durability.
PLACID offers 2 years warranty against defective materials and workmanship.
SPECIFICATION
PNSRTW Mk.3 is the third generation of PLACID Instrument’s WiFi™ enabled smart integrating sound-level meters/dataloggers. It includes a digital MEMS microphone, an accurate date/time clock, a non-volatile 128 Mb recording memory and wireless connectivity. Running on battery, it can record sound pressure levels and report them through WiFi™ for a week. Connected to an external USB charger it can record and report for months. Its very small size allows it to be attached to or embedded within the monitored equipment.
Features
- Type I precision
- A, C and Z weighting
- Integrating Sound-Level Meter, records L-max, L- min and Leq
- Log interval adjustable from 125 ms (8 points per second) up to
- Individual Manufacturer’s Certificate of Calibration from Convergence Instrument provided with every instrument
- WiFi™ connectivity to report measured levels remotely and automatically at preset
- Email alerts for sound detected over specified threshold, as well as low-battery.
- Digital very sensitive MEMS microphone (30 dBA typical noise floor)
- Completely sealed weatherproof enclosure designed for outdoors Now includes an ePTFE membrane that seals the microphone against dust and water.
- All-digital
- Ultra-stable sensitivity (field recalibration is easily done, but seldom required)
- Very low sensitivity variation due to temperature changes
- Very low sensitivity to vibrations
- Software function calculates global Leq and/or dose, according to ISO and OSHA method
- Adjustable response
- Preprogrammed recording start date/time.
- Integrated oscilloscope function that can show the acoustic signal in real time
- Integrated spectral analyzer function that can show the spectrum (or 3rd-octave bands) in real time
- Can be used as a high-quality USB digital microphone
- Allows the observation of recorded levels while the recording is
- Works standalone, or USB
- Long life internal rechargeable battery that recharges from USB and most USB
- Can be field-calibrated.
- Observes and records 100% of the acoustic signal (no missed samples).
- Editable individual custom ID for easier instrument management.
- All settings are stored in non-volatile memor So the instrument will regain full functionality and WiFi connection from hard-reset or battery loss.
- Compatible with Convergence Instrument’s Cloud
Applications
- Sound level and acoustic dose measurement and recordin
- Monitoring of safe working condition
- 24/7 noise monitoring on construction sit
- Email Alerts when the noise is too
- Activity detection and loggin
- Long-term measurement and recording of acoustic levels for environmental impact stud
- Specially designed for long-term outdoors application
| Bandwidth | 20 Hz to 20kHz |
| Microphone Sensor | Digital MEMS |
| Precision Class | Type I |
|
Saturation Level (typical @ 1 kHz) |
· 120dB-A
· 120dB-C · 120dB-Z |
| Temperature Error | Better than 0.6 dB (-20 degC < T < 60 degC) |
| Sensitivity to Vibrations | 60 dBSPL/g (20 dB lower than typical measurement microphone) |
|
Weighting Curve |
· dB-A
· dB-C · dB-Z |
|
Noise-Floor (Typical) |
· 30 dB-A
· 46 dB-C · 52 dB-Z |
| Recording Resolution | 0.1 dB |
| Duty Rate of Signal Capture | 100% – No MissedSamples |
| Min Log Interval | 125 ms (8 points of Lmin, Lmax and LEQ per second) |
| Real-Time Spectral Display | 2048-point Power Spectrum – dB or LinScale. |
| Calibration | Field-calibrated using a 94 dB 1/2”calibrator |
| Connectivity | • USB
• WIFI |
| Radio Standard | IEEE 802.11 b/g/n |
|
Radio Certification |
• FCC
• IC • Japan • Korea • CE |
| Temperature Range | -20 degC to 60 degC (-4 degF to 140 degF) |
| Recording Memory | Non-Volatile Flash Memory |
| Recording Memory Capacity (RT128 Model) |
|
| Recording/Erasure Cycles | Greater than 100 000 |
| Data Retention | Greater than 20 Years |
| Dimensions | 19 mm x 42 mm x 160 mm (0.75” x 1.65” x 6.25”) |
| Weight | 100 g |
| Construction | Weather-Proof Enclosure |
| Microphone Dust Protection | Expanded polytetrafluoroethylene (ePTFE) dust and water barrier |
| Battery Type | Integral Li-Poly – USB-Rechargeable |
| Recharge Time | 2 H 30 (Typical) |
| Battery Autonomy (Full- Charge) | 7 days while recording |
| Battery Life | > 300 Charge/Discharge Cycles |
| WiFi Security | • Open • WEP • WPA / WPA2 |
| Server Connection | • IP address/Domain Name |
| Protocol | TCP/IP – Open protocol |
FREQUENCY RESPONSE
Picture below shows the typical spectral error in dB-A, dB-C and dB-Z, at 32 kHz and 48 kHz sampling rate, together with the type I limitlines.
DIRECTIVITY
Picture below shows the directivity of the instrument as a function of frequency
INSTRUMENT MANAGER APPLICATION SPECIFICATIONS
| CATEGORY | SPECIFICATION |
| Compatibility | Windows 7, Windows 8, Windows10 |
| Supported Instruments | All in Sentry series |
| Configuration | • Full Instrument Configuration
• Save and Recall Configuration Files |
| Display | • Real-Time Acoustic Signal
• Real-Time Sound Level |
|
Record Management |
• Real-Time Spectrum
• Recorded Sound Levels • Global Leq/Dose Calculation (ISO and OSHA methods) • Battery Level and Charge • All graphs can be viewed in dB or Lin scale • Record Manual Start/Stop • Record Programmed Start/Stop • Recording Memory Download (Even while recording) • Recording Memory Clear • Auto-Calculation of Memory Depth |
| Cloud Compatibility | Supported by PLACID Instrument’s Cloud Solution |
| Data Export (all graphs) | Export to Tab-Delimited Format for Use with Spreadsheet Applications |
OTHER APPLICATION
| APPLICATION | DESCRIPTION |
| Noise Sentry RT Community Noise Metrics | Application to calculate various noise metrics, suchas CNEL, LDEN, and many others. |
| NSRT_Recorder | Allows the PNSRTW Mk.3 to be used as a digital high-quality recorder. |
| Cloud | Web-based cloud solution so that instrument data can be reported and viewed/downloaded from anywhere in the world through Convergence Instruments Cloud service (requires a subscription) |
| Instrument Listener | Required for WiFi operation when the cloud service is not used. The application must be running on PC to allow instruments to connect and download their data via WiFi. |
Please Click and Download this product datasheet for further information
