1. Manuals
  2. Brands
  3. Convergence Instruments Manuals
  4. Data Loggers
  5. NSRTW mk3
  6. User manual

Convergence Instruments NSRTW mk3 User Manual

Hide thumbs
Table of Contents

Advertisement

Quick Links

Download this manual
NSRTW_mk3
User's Manual
January 29 2019
Bruno Paillard

Advertisement

Table of Contents
loading
Need help?

Need help?

Do you have a question about the NSRTW mk3 and is the answer not in the manual?

Questions and answers

Subscribe to Our Youtube Channel

Related Manuals for Convergence Instruments NSRTW mk3

Summary of Contents for Convergence Instruments NSRTW mk3

  • Page 1 NSRTW_mk3 User’s Manual January 29 2019 Bruno Paillard...

  • Page 2: Table Of Contents

    INTRODUCTION _____________________________________________ 3 APPLICATIONS ______________________________________________ 3 WARNINGS _________________________________________________ 4 GETTING STARTED __________________________________________ 4 Software Installation ____________________________________________________________ 4 Hardware Installation ___________________________________________________________ 4 Initial Test and Configuration ____________________________________________________ 5 INSTRUMENT FUNCTIONS AND DESCRIPTION ___________________ 5 PRINCIPLE OF OPERATION ____________________________________ 6 Power Consumption ____________________________________________________________ 6 Battery Charging _______________________________________________________________ 6 Modes of Operation _____________________________________________________________ 7 LED Indicators ________________________________________________________________ 7...
  • Page 3 7.3.7 Signals Field ______________________________________________________________ 21 Records Tab __________________________________________________________________ 21 7.4.1 Instrument Download _______________________________________________________ 21 7.4.2 File Save _________________________________________________________________ 22 7.4.3 File Open _________________________________________________________________ 22 7.4.4 Exporting Data _____________________________________________________________ 22 7.4.5 Global Level Calculations ____________________________________________________ 22 7.4.6 Graph Controls ____________________________________________________________ 23 7.4.7 Cursor Control _____________________________________________________________ 23 Spectrum Tab _________________________________________________________________ 24...

  • Page 4: Introduction

    Introduction NSRTW_mk3 is the third generation of Convergence Instrument’s WiFi™ enabled smart integrating sound-level meter/datalogger. It includes a type 1 digital MEMS microphone, an accurate date/time clock, a non-volatile 128 Mb recording memory and wireless connectivity with fast USB and WiFi™ download (“W”...

  • Page 5: Warnings

    • Specially designed for long-term outdoors applications. Warnings Never blow air at the microphone. Avoid over-discharging the battery • Recharge the instrument immediately if the LED indicates a low-battery condition. • Even if the instrument is Idle all or most of the time, recharge it fully at least once every 6 months.

  • Page 6: Initial Test And Configuration

    2. Verify that the PC properly detects the instrument and loads the driver. In case of doubt see section Troubleshooting. Initial Test and Configuration 1. Upon connection to the PC, the charge LED should light-up yellow (charging) or green (charged). The operating LED should blink once per second. 2.

  • Page 7: Principle Of Operation

    Figure 1 NSRTW_mk3 1. Charge LED 2. Operation LED 3. USB Connector 4. Reset Button Principle of Operation Power Consumption The NSRTW_mk3 is always on. However, when not in operation it only measures time, which only takes a tiny operating current. In that Idle state it can stay on for up to 6 months. When the NSRTW_mk3 is actively measuring, its power consumption allows it to record for 1 week.

  • Page 8: Modes Of Operation

    While charging, the charge LED is orange. When fully charged, the LED changes to green and the charging stops. The charge time from a completely discharged state varies with the amount of power the PC allows the instrument to draw. Charge time is normally around 2H30. If the PC only allows 300 mA, the charge time can increase up to 5 to 6 hours.

  • Page 9: Operation Led

    LED State Meaning Instrument is disconnected, or is connected to a PC that is in standby. Green Instrument is connected to a PC or USB charger, and the battery is full. Orange Instrument is connected to a PC or USB charger, and the battery is charging. Table 2 6.4.2 Operation LED The operation LED is always blinking.

  • Page 10: Manual Recording

    Note: The time constant only affects the calculation of Lmin and Lmax. The Leq is integrated linearly over the specified log interval. Manual Recording Every time a recording is started, a new record is created in memory and filled until the recording is stopped.

  • Page 11: Automatic Recording With Wifi™ Connection ("W" Model Only)

    WiFi™ “W” Automatic Recording with Connection ( model only) The NSRTW_mk3 supports a mode of operation where it periodically connects to a server (a Windows PC running the Instrument_Listener application) through WiFi™, or Convergence Instrument’s cloud solution. This feature is designed to let the instrument record autonomously, periodically report the levels recorded since the last connection, and optionally send emails with noise-level or low-battery alerts.
  • Page 12 In order to be able to send an alarm email, the instrument must have the following setup: • A WiFi™ Router or Access Point must be in the instrument’s vicinity, and the instrument must have been configured with that router’s connection parameters. That is part of the WiFi Setup of the instrument.

  • Page 13: Instrument_Manager Application

    Instrument_Manager Application Figure 2 Setup Tab 1. Real-Time Acoustic signal 2. Auto-Range button 3. Memory fill indicator 4. Timer button 5. Record button 6. Instrument Time indicator 7. Tab selector 8. Instrument Temperature indicator 9. Erase button 10. Instrument User ID 11.
  • Page 14 Figure 3 Record Tab 1. Cursor field 2. Recorded levels 3. dB/Lin button 4. Pan and zoom buttons 5. Record number selector 6. Cursor 7. Data source 8. File Save button 9. File Open button 10. Instrument Download button 11. Export button 12.
  • Page 15 Figure 4 Spectrum Tab 1. Cursor, Zoom and Pan controls 2. Cursor values display 3. dB/Lin button 4. Auto-scale button 5. Cursor 6. Spectrum 7. Spectral controls 8. Spectrum reset button NSRTW_mk3 User’s Manual...

  • Page 16: Starting The Application

    Figure 5 WiFi Tab 1. Connection Test Button 2. Disable All WiFi Button 3. Cloud Setup Button 4. Email Setup Button 5. WiFi Setup Button 6. Name (SSID) of WiFi Access Point or Router 7. IP address of the instrument 8.

  • Page 17: Main Functions

    1. Connect the instrument to an available USB connector on the PC. 2. Make sure that the charge LED lights-up yellow or green, and that the operation LED starts blinking. If not, review the installation procedure, or see section Troubleshooting. 3.

  • Page 18: Recording Field

    To set, modify or delete the User-ID, simply place the cursor in the User-ID box and write a new identifier or clear the text. The new identifier is written to the instrument’s memory as soon as return or enter is pressed, or if the mouse is left-clicked outside of the box. The User-ID is written to non-volatile memory, so it is retained even in the event of a reset or battery failure.

  • Page 19: Settings Field

    Figure 6 Timer Settings Panel 1. Cancel button – Closes the window without arming the timer 2. OK button – Closes the window and arms the timer 3. Calendar button – Brings the calendar view to enter date and time 4.
  • Page 20 Figure 8 Instrument Settings Panel 1. OK button – Closes the window 2. Recall Button – Recalls a configuration from a configuration file 3. Save Button Saves a configuration to a configuration file 4. Time constant for sound level measurement (only affects Lmin and Lmax) 5.
  • Page 21 7.3.5.1.4 Recorded Data Selectors The recorded data selector specifies the type of statistic to record. To select a type of data, simply check the corresponding checkbox. By default, all statistics (L-min, L-max and Leq) are selected. The amount of memory consumed while recording is proportional to the number of data types selected. The Memory-Depth indicator in the Setup panel automatically calculates the total recording time as a function of the selection.

  • Page 22: Battery Field

    7.3.6 Battery Field This battery condition field indicates the remaining battery capacity. The indicator is surrounded by a yellow indicator that lights-up when the battery is charging. The battery condition indicator is scaled to indicate the approximate number of days of recording time remaining in the battery.

  • Page 23: File Save

    7.4.2 File Save Pressing the Save File button saves all the records downloaded from the instrument to a file on the PC. In addition to the whole contents of the recording memory the file also contains ancillary information, such as calibration, instrument information…etc. The file is saved in a proprietary format with the extension .cil.

  • Page 24: Graph Controls

    7.4.6 Graph Controls The graph can be adjusted and analyzed using the following techniques: 7.4.7 Cursor Control A cursor can be used to precisely measure the level at a particular point in time. To the bottom-left of the graph is a three-button control. The left-most looks like a cross. In order to use the cursor proceed as follows: •...

  • Page 25: Spectrum Tab

    Spectrum Tab The Spectrum tab is shown on Figure 4. When that tab is selected the time-domain signals captured by the instrument are presented in the form of averaged power spectra. The processing is as follows: Figure 9 (-> shows the defaults) 7.5.1 Window The type of window chosen has an impact on the spectral resolution.

  • Page 26: Cursor, Zoom And Pan

    7.5.4 Cursor, Zoom and Pan Cursor, Zooming and Panning is done the same way as in the Records graphs. See section Graph Controls The auto-scale button can be pressed or released to obtain an automatic or fixed vertical scale. When the graph is in fixed scale, writing directly in the values of the end-scale markers sets the scale to fit those values.

  • Page 27: Cloud Setup

    • Indicator 13 or 14 blinking: The instrument is trying to connect to report new data (13), or to send an email alert (14). • Indicators 9 and 10 Active: The instrument is connected to a Router or Access Point. In this case the SSID of the Router or Access Point is written in indicator 6, and the IP address of the instrument is written in indicator 7.
  • Page 28 2. At this point the instrument connected to the PC may already be associated to that account. Otherwise the subscription must allow for one additional instrument. If that is the case, the instrument is automatically associated to the account, and there is no error message. The panel below is presented to the user.
  • Page 29 d. Email-Configuration: Optionally enable email alarms for battery and/or level. If level alarms are enabled, adjust the threshold. 4. Press the Submit button at the bottom of the web page and go back to the Cloud-Setup window. 5. Press the Activate-Instrument button (2). At that time the instrument is completely configured, and the window disappears.

  • Page 30: Wifi Settings (Without Cloud Service)

    7.6.3 WiFi Settings (Without Cloud Service) The WiFi settings panel appears when the Set WiFi button is pressed. The WiFi settings are used to configure the Router(s) or Access Point(s) to connect to, the Server’s IP address or domain name, and the periodic connection schedule.

  • Page 31: Manual Connection

    • Password (P) is used to conceal the password being entered • Hex (H) is normally used in conjunction with WEP security • Normal (N) is normally used in conjunction with WPA and WPA2 security 7.6.3.3 Server The server can be defined by its IP address, or its domain name. This server can reside on the local network, or on the internet.

  • Page 32: Email Setup (Without Cloud Service)

    7.6.6 Email Setup (Without Cloud Service) Email alarms can be setup by pressing the Set email button. Figure 11 Email Setup Email alarms require the following conditions: • The WiFi setup must have already been done so the instrument can connect to a router or access point.
  • Page 33 In addition to these settings, the email alarms settings let you set: • One Recipient The recipient line (to line in Figure 11). • The sender’s address The application by default shows the settings for a fictitious secure gmail account (see Figure 11).

  • Page 34: Wifi™ Battery Drain

    Select Hourly, Daily or Weekly cycle (or No Secondary Cycle to disable it). Then select the threshold to apply during the secondary cycle. Finally select when the secondary cycle begins and when it ends. The Start and End of the secondary cycle are defined by: •...

  • Page 35: File Storage

    Note: When several instruments try to connect at the same time, the Instrument_Listener application will open multiple NSRT_Server windows. Figure 13 Instrument_Listener Application Figure 14 NSRTW_Server Window The NSRTW_Server window performs the following operations: • If data is in the instrument, it creates a .wlg file to hold that data, or appends the data to the file if one has already been created.

  • Page 36: Maintenance

    These .wlg files can be opened for viewing by the Instrument_Manager application. When they are opened the application will ask to convert them to a .cil file. The .cil format is easier to open, and can be opened by other applications in the suite. Maintenance Battery Care The following factors affect battery life:...

  • Page 37: Troubleshooting

    10 Troubleshooting 10.1 USB Power Limitation In some instances a PC will not allow the instrument to connect to one of its USB ports because it cannot provide the battery charge current requested by the instrument. If you suspect that this may be a factor, try connecting the instrument to the output of an externally-powered USB hub that is capable of providing a full USB load (500 mA).

Table of Contents