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Limit

USER´S MANUAL

Version 2.19 january 2019

www.mrcaudio.com

Summary of Contents for EQ Limit

Page 1: ...Limit USER S MANUAL Version 2 19 january 2019 www mrcaudio com...

Page 2: ...re that the base where you connect it has a good grounding Always connect the equipment to an adequately protected voltage socket with safety elements and easy access Unplug this apparatus during ligh...

Page 3: ...ser s manual 16 Backup 16 7 Programming 17 18 7 1 Installation File 19 7 2 Limiter adjust 20 21 22 7 3 Levels and Timetable 23 24 25 7 3 1 AUX Levels and Timetable 25 7 4 Limiter 26 7 4 1 Calibration...

Page 4: ...al measured by the microphone In both cases it is possible to adapt the limiting spectral curve to the house s isolation spectral curve by means of a spectral meter with 12 1 3 octave filters The limi...

Page 5: ...unit is only possible through proprietary software installed in a PC It is necessary to register this software prior its first use and introduce a user s license that is provided for each authorized u...

Page 6: ...MRC AUDIO EQLimit FILTER FILTER MIC 1 MIC 2 LEFT LINE INPUT RIGHT LINE INPUT BANDS FILTERS uC SUM DISPLAY COMMS C A BASS VCA VCA SUM R E L A Y S FIG 1 LEFT LINE OUT RIGHT LINE OUT FILTER C A...

Page 7: ...nput connector with Earth connection and input fuse The protecting fuse must always be substituted by one of the same type T 3 15A 250V Universal power supply 90 to 250VAC 7 DISPLAY Connector for the...

Page 8: ...N 5 15 10 20 NOISE 1 2 3 4 5 Fig 2 OUT R L R L IN MIC 1 MIC 2 FUSE RS 232 AUX LEVEL 5V 15V DISPLAY 6 7 8 11 12 13 14 15 9 LAN 10 DC OUT AUX OUTPUT L R E172301 SERIAL NO FOR SAFETY OPERATION PLEASE REF...

Page 9: ...O FOR SAFETY OPERATION PLEASE REFER TO USER S MANUAL PUSH PUSH PUSH PUSH PUSH Sound Level Controller EQLimit FIG 3 This unit has been carefully packed at the factory inside a specially designed case N...

Page 10: ...is no crossover Either balanced or unbalanced lines are used be sure to follow the same pin out at both channels to avoid phase cancellations Connect the microphone s to the MIC1 and MIC2 optional 15...

Page 11: ...for the SCL software every time you attempt to change any configuration parameter in the limiter the limiter will request a password to permit changes For this purpose an emerging window will appear...

Page 12: ...e limiter MRC Audio can provide a master password valid for only that limiter as a function of its serial number and valid only once Introducing a master password is registered in the limiter s non vo...

Page 13: ...s and Compatibility tab of icon Clicking on this icon created on the desktop at software installation time the initial window appears where you can choose the user s language through its corresponding...

Page 14: ...case sensitive Please fill in all fields including the logo of your company as this data will appear at the headings of the reports Click on the Save Data button and then on the Activate button and t...

Page 15: ...by means of their left hand numbered buttons Each time a button is clicked it changes to blue colour Once all installations wanted to erase have their left hand numbered button coloured blue click on...

Page 16: ...llations again the asterisk button alternatively selects deselects all installations and click again on the now Click here to export and colour green to export the installations This will open an OS w...

Page 17: ...time you can press the Edit Limiter button and continue normally with the current version If you choose to update it gives you the opportunity to confirm that update or postpone it to another time If...

Page 18: ...s under the Disconnect button This button is initially dimmed while the limiter s configuration data is downloaded to the PC Also the log window notifies that the configuration is being downloaded Onc...

Page 19: ...een deactivated the device will stop working Five days before expiring the illuminated logo of MRC Audio flashes with intensity to warn of the end of the reservation period When the date arrives it wi...

Page 20: ...s are registered in the events memory together with their date and time as all events Leq Adjusts the integration time for the Leq parameter Registry Adjusts the minimum level to record in the events...

Page 21: ...alarm or with respect to the Line Out level in the Efi alarm which must be surpassed in the SPL alarm or under passed in the Efi alarm to start counting the persistence time Record if checked the alar...

Page 22: ...g minutes and hours in the Special Timetable From and To columns Also configure the permitted maximum level during that special period in the SPLmax column The EQLimit limiter accepts time intervals s...

Page 23: ...anged by means of the up and down arrows at the left of the box each click on these arrows will make a change of 0 1 dB If the Without weekly timetable box is not checked up to 3 different time period...

Page 24: ...at day s button at the linear strip or navigate from day to day with the Previous day and Next day buttons The examples figure above shows a time table for Monday as follows From 9 00 in the morning t...

Page 25: ...the programmed ending time the limiter abruptly attenuates the music whatever the point of the slope is reached In case you want to adjust only two bands or a single band for a specific day just writ...

Page 26: ...se generator Calibrate automatically to equal the Mic 1 and Line Out levels clicking on the CAL button This process is guided by 4 LEDs and emerging advice windows Select the control signal for limita...

Page 27: ...and own arrows to also obtain 0 1dB increments The same adjustment can be done with microphone 2 if present Once the limiter s sensing microphone measures the same as the sound level meter you can pr...

Page 28: ...this calibration adjusts the limiter s global gain only 8 dB over the working limit adjusting the total power of the installation to the real working level This means that the limiter can work at low...

Page 29: ...lay it shows the attenuation level by means of a bar of LEDs and signalises alarms and or excessive input level by means of dedicate LEDs By three big leds show the activity of sound signal inside the...

Page 30: ...Line Out signals for limiting and the spectral limiting becomes active when switching the Band Limiting ON OFF button to ON The global MIC1 and Line Out real time levels are also show at the right of...

Page 31: ...limit change from green to red as seen in the previous figure In the numeric box underneath the bars the real time level per band is shown with 0 1dB precision Below the band bars there is a matrix of...

Page 32: ...bordinate to the global limiting therefore after doing all adjustments and after 3 minutes without typing any data into the matrix the limiting levels per band will be automatically adjusted to match...

Page 33: ...n check this spectrum at any time by pressing the button Footprint of Bands and generating pink noise see and register the differences that could exist between the original static spectrum in the left...

Page 34: ...r All configuration changes are registered in non volatile memory inside the limiter and this record can be recovered from this utility This window also shows total counters for the alarms and session...

Page 35: ...vents are listed and the creation of graphics is then possible It is also possible to create reports in PDF Excel Word or XML formats to be printed or email In the case of XML the report is AES encryp...

Page 36: ...apacity to measure and register the next sound parameters Instantaneous SPL of microphone 1 Leq 5 seconds Leq with adjustable integration time for microphone 1 Percentile L90 for microphone 1 Percenti...

Page 37: ...g on it Once the period of time is selected click on the Download button to start downloading In the Events in Flash box the total amount of events recorded in the limiter s flash memory appears In th...

Page 38: ...tional microphone 2 and are the same as for microphone 1 The slide bar at the right permits to navigate this window up and down to see all the events downloaded Automatically when the events are downl...

Page 39: ...at the top tick the boxes of the types of events you want to see Clicking on the All tick all types are selected deselected alternatively Once selected types and period of time click on the List butt...

Page 40: ...on the events pdf report generation button the next small window opens allowing us to select which columns we want to highlight in gray in the final document for better comparison 7 9 GRAPHS Clicking...

Page 41: ...xis by clicking directly on the point of the graph you want the cursor to go or alternatively with the left and right arrows of your keyboard step by step Underneath the graph there is a cursor sectio...

Page 42: ...s Registers can be represented by dots bars or lines Each plot can be shown in the selected colour Smart Spectrum Limiting activates the SSL functionality once in the on position a numeric box appears...

Page 43: ...mitting a password change Once the correct password is given the EQlimit limiter will not ask for it again unless a 5 minute elapse time occurs between two successive parameter changes Master Password...

Page 44: ...L box is automatically filled in with the web address of the selected provider We can also write an IP address directly if necessary If you operate through a GPRS modem optional you must enter the APN...

Page 45: ...osstalk 90 dB 1 Khz and 80 dB 10 KHz Global gain From 0 to 50 dB Peak level indicator 15 dBV Measurement range 30 dBA to 120 dBA Accurate 1 5 dB From 50 to 115 dBA Limiting Adjustable From 30 to 120 d...

Page 46: ...y to the original purchaser of the product For warranty service please call your local MRC AUDIO dealer Then ship the defective product with transportation and insurance charges pre paid to below addr...

Page 47: ...s window At switch on the remote display reproduces a verifying sequence showing a count down from 9 to 0 at the four digits and lighting up all the LEDs At the end of the countdown it starts displayi...

Page 48: ...D cret 2017 1244 of the French law follow the next instructions 1 Connect the DD 3 to the DISPLAY output of the EQLimit 2 Connect the microphone cable to the female XLR socket of the Y cable 3 Connec...

Page 49: ...ction Fig 4 It has 3 displays with four great luminosity digits of 20mm of height each one for its comfortable reading The first display is exactly the same as model DD 1 and shows the level of the ro...

Page 50: ...a special period the remote display shows the message SPEC and the sound level alternatively If there is a situation of alarm the remote display shows the message ALAr and the sound level alternative...

Page 51: ...MRC AUDIO EQLimit 51 CERTIFICATION 12...

Page 52: ...MRC AUDIO EQLimit 52...

Page 53: ...11 Representante Representative MRC AUDIO LIMITADORES S L CIF B85637403 Direcci n Manufacturer s address c Cavanilles 50 5 A C P 28007 MADRID ESPA A Tipo de equipo Type of equipment CONTROLADOR ESPECT...

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