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All Weather Noise Monitor - XScala Sound & Vibration
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1. All weather Case Type 3535 A houses a noise measurement system based on Hand held Analyzer Types 2250 2250 L 2270 The case is light and robust with its contents protected by high density machined foam inlays Designed for unattended noise monitoring the enclosure protects the measurement system from the weather and unauthorised access while providing power and remote data retrieval Battery power for extended measurement durations Is provided by two Li lon batteries These lightweight batteries make Type 3535 A compact and completely portable A charger is included in the case for each battery The chargers can also be used to power the system if mains power Is available Alternatively external DC power can be used A wide variety of optional accessories and measurement modules are available to tailor the system capability to the monitoring task Uses and Features Uses e Measurements made Outdoors Unattended In workplaces and on construction sites In remote locations e Measurements for Area planning Noise control Complaint investigation Venue licensing Features e Weather protection to IP 43 e Easy to carry and transport e Tamper protection a Type 2250 2270 software only b Type 2250 2270 Enhanced Logging software only PRODUCT DATA All weather Case Type 3535 A eg wits ae e Hot swap of batteries e Flexible power options e Type approved to Class 1 With Type 225
2. 0 amp 2 00 16 40 00 With Sound Recording software you can initiate a sound recording manually automatically using level triggers both broadband and frequency based level triggers or at set time intervals Pre recording lets you record sound occurring before sound recording is triggered and memory space is saved by setting a suitable recording quality and maximum duration Fig 5 Type 3535 systems viewed remotely with a Web browser device Remote Communication via Modem or Router The interior foam profile and power supply compartments of the All weather case are designed to accommodate a broadband modem or router High speed wireless connectivity using 3G GPRS WLAN or GSM protocols can then be used to monitor prevailing noise levels in real time manage the measurement setup and retrieve measurement data See Type 2250 Remote Control Video Demonstration Shared public access to the live display of the analyzer inside the All weather Case can be configured simply by activating the Web browser facility of the 2250 2250 L and 2270 Remote Site PDA With internet access Mobile phone with internet access Type 3535 A PC with Browser 090109 1 Using any mobile phone PDA or PC with Internet access you can monitor the live screen of the analyzer by linking up through the analyzer s unique IP address on Dyn DNS label keeping you in touch with your measurements at all times Data acquired by means of unattended noi
3. 21 05 02 2 Neufassung 21 21 05 02 1 Neufassung 121 21 06 02 0 Erstbescheinigung Die 2 Neufassung ersetzt die 1 Neufassung der Anlage vom 07 05 2007 Geschaftszeichen PTB 1 72 4027414 zum oben genannten Zulassungsschein sowie die f r diese Fassung erteilten Nachtrage Nr 1 vom 26 06 2007 Geschaftszeichen PTB 1 72 4030327 Nr 2vem 01 10 2007 Gesch ftszeichen PTB 1 72 4032119 Nr 3 vom 29 09 2008 Geschaftszeichen PTB 1 72 4036491 Fur die Messgerate der zugelassenen Bauart gelten Rechtsvorschriften Allgemeine Vorschriften der Eichordnung EO AV vom 12 August 1988 BGBI S 1657 zuletzt ge ndert am 02 02 2007 BGBI S 58 Anlage 21 zur Eichordnung vom 12 August 1988 zuletzt ge ndert durch die 3 Verordnung zur Anderung der Eichordnung vom 18 August 2000 BGBI S 1307 Hinweise Neufassungen ohne Unterschrift und Siegel haben keine GoRigkelt Diese Neutassung Ist Bestandie der veg eens y und darf rur unverandert weiterverbreitet werden Auszl rfan der Genehmigung der Pryskalisch Tachnischen Bunde Note Revisions and sea are nat valid This Revision is part of the type anprow ing nr hmm ata reproduced other than in want neste may Oe taken aniy with the pannission af the Physikalisch Technische Bundasanst Rechtsbehelfebelehrung fesen Bescheid kann innerhalb eines Monats nach Bekannigabe schriftlich oder zur Niedersctwift Widerspruch bei der Geg Physikalisch Technischen Bund
4. Type 3535 A is easy to carry and transport Type 3535 A comes with two powerful batteries and two chargers Power for the system may be provided by any or all or the following e One of the included batteries QB 0073 Both of the included batteries QB 0073 e One of the included chargers ZG 0857 provided mains power is available e Both of the included chargers ZG 0857 provided mains power is available e External DC power 12 24 V In addition the hand held analyzer has an internal Li Ion battery that provides a further 8 hours of power for the analyzer The case s batteries use lithium ion Li Ion technology well known from mobile phones portable PCs and hand tools Li Ion batteries are renowned for their excellent charge retention lack of memory and very high energy efficiency 5 times better power to weight ratio than traditional lead acid batteries For reliable long life operation the bateries have internal circuitry to protect against shorts and overdischarge The chargers are used to charge the batteries prior to measurements but may also be used to power the system during measurement if mains power is available All power sources are connected to the case s power panel which always directs power from the source with the highest voltage to supply the measurement system and optional modems This way you may connect or disconnect power sources at any time during measurement as long as j
5. indicates compliance with the EMC requirements of Australia and New Zealand Safet EN IEC 61010 1 and ANSI UL 61010 1 Safety requirements for electrical equipment for measurement control y and laboratory use EN IEC 61000 6 3 Generic emission standard for residential commercial and light industrial environments EMC Emission EN IEC 61000 6 4 Generic emission standard for industrial environments CISPR 22 Radio disturbance characteristics of information technology equipment Class B Limits FCC Rules Part 15 Complies with the limits for a Class B digital device EN IEC 61000 6 1 Generic standards Immunity for residential commercial and light industrial environments EMC Immunity EN IEC 61000 6 2 Generic standards Immunity for industrial environments EN IEC 61326 1 Electrical equipment for measurement control and laboratory use EMC requirements Note The above is only guaranteed using accessories listed in this user manual IEC 60068 2 1 amp IEC 60068 2 2 Environmental Testing Cold and Dry Heat Operating Temperature 10 to 50 C 14 to 122 F Battery powered Temperature Operating Temperature 10 to 40 C 14 to 104 F Charger powered Charge Temperature 0 to 40 C 32 to 104 F with case lid open Storage Temperature 10 to 60 C 14 to 140 F Humidity IEC 60068 2 78 Damp Heat 90 RH non condensing at 40 C 104 F Non operating IEC 60068 2 6 Vib
6. 0 2250 L 2270 logging software e Level trigger e Sound recording of events e Auto CIC calibration check e Remote 3G broadband operation e Automatic status SMS text messages e Automatic status e mail messages External trigger e Supply voltage check e Timer controlled measurement e Periodic reports oo e Up to 32 GB data storage Briel amp Kj r Inside the Case Fig 1 The contents of Type 3535 A Foam support for batteries amp analyzer Rain shield Modem not incl with velcro strap Warning label able channel Power panel Foam support 2 x eyes for chain Cable strain relief posts Cable entry exit for external microphone connection access 2 x batteries Hand held Analyzer Type 2250 2250 L 2270 not incl m and or lock Opou moe DC Out on off switch 2 x chargers with velcro strap ee ANAAL Microphone not incl in space provided 2 x eyes for padlock h 090091 Protection of the Contents During transportation the analyzer and batteries are held safely in place by the lid inlay and the chargers and router modem are secured using velcro straps During measurements any cables exiting the case such as the microphone extension cable and a mains power cable if used are strain relieved inside the case and protected by a rain shield mounted on the case lid Power Fig 2 Compact and lightweight
7. and Components Available Separately TYPE 3535 A QB 0073 Battery ZG 0857 Charger including mains cable ANALYZER ZG 0444 Charger for QB 0061 Battery Pack FIELD CALIBRATION Type 4231 Sound Calibrator MEASURING UA 0587 Tripod UA 0801 Small Tripod UA 0588 Microphone Holder UA 1317 Microphone Holder Type 4952 Outdoor Microphone for 1 thread pole mounting Type 4952 A Outdoor Microphone including Tripod Adaptor UA 1707 UA 1707 Tripod Adaptor for Type 4952 Accredited Calibration 2250 2270 CAl Accredited Initial Calibration of Types 2250 2270 2250 2270 CAF Accredited Calibration of Types 2250 2270 2250 2270 CTF Traceable Calibration of Types 2250 2270 Type 3655 C Portable Noise Monitoring Terminal Including AO 0645 D 100 UL 1016 AO 0441 D 030 AO 0441 D 100 Hand held Analyzer Type 2250 A with Sound Level Meter Software Noise Monitoring Software BZ 7232 All weather Case Type 3535 A Outdoor Microphone Type 4952 A Microphone Extension Cable AO 0645 D 030 3 m 9 8 ft Tripod UA 0801 Mains Power Supply for Type 2250 ZG 0426 Ethernet Compact Flash Card UL 1016 Secure Digital Memory Card UL 1017 Microphone Extension Cable for Type 4952 7 pin LEMO to 10 pin LEMO 10m 33 Ethernet Compact Flash Card Microphone Extension Cable 10 pin LEMO 3m 10 Microphone Extension Cable 10 pin LEMO 10m 33 ZH 0680 Handswitch UL 1009 SD Memory Card for Hand held Analyzers UL 1013 CF Memory Card fo
8. ble Noise Monitoring Terminal Type 3655 C This is a professional portable noise monitoring terminal for integration in environmental noise monitoring and management systems Based on Hand held Analyzer Type 2250 with Noise Monitoring Software BZ 7232 it functions exactly as Noise Monitoring Terminal Type 3639 B in a portable case rather than a mounted cabinet The noise monitoring functionality includes CIC calibration checks optional event detection and sound recording for extended periods of monitoring The unit includes space for a modem or router for remote viewing of real time results and to remotely control the unit from a PC using Environmental Noise Management Software Type 7843 S Server and Client or Environmental Noise Management Software Light Type 7843 L Server and Client Data can be automatically downloaded real time or on connection with the ENM Server Licenses for Sound Level Meter Software BZ 7222 and Noise Monitoring Software BZ 7232 are included Event Analysis Option for 3639 NMT BZ 7844 can be added as an option for enhanced functionality if required Functionality is described in Noise Monitoring Terminal Type 3639 A B Product Data sheet BP 2241 For more information see Product Data for the Type 3639 A B and Environmental Noise Management Software Type 7843 BP 2100 Compliance with Standards para format Compliance CE mark indicates compliance with EMC Directive and Low Voltage Directive C C Tick mark
9. esanstalt unter emer der nachstehenden Adressen aingriegt werden mae nafificahon aae eS EP in writing or orally recorded to the Physikatiech ea Ba rca tpt af the foWowing addresse Physikalisch Technische Bundesanstalt Bundeesliee 100 Abbestrate 2 12 36116 Braunschweig 10587 Berin DEUTSCHLAND DEUTSCHLAND 090112 In addition nothing less than Class 1 accuracy is required for outdoor measurement systems incorporating rain shields wind shields or any other form of environmental protection used in microphone systems Placing a small device such as a rain guard in close proximity to the microphone diaphragm may produce significant acoustic disturbance and thus measurement errors at mid and high frequencies Type 2250 Hand held Analyzer with Type 4952 Outdoor Microphone system are a Type approved system combination independently approved to Class 1 accuracy by PTB in Germany see Type approval certificate Fig 7 This ensures that the measurement system complies with the minimum requirements of accuracy for unattended noise measurement a consideration often overlooked in portable noise monitoring systems Type approval of the system to IEC 61672 1 2002 also permits the weather protected measurement system to be laboratory calibrated in accordance with part III of this Sound Level Meter standard Fig 8 Example of post processing using BZ 5503 Post processing For data management and post processing the following PC s
10. gging Software BZ 7133 are also included Frequency Analysis Module BZ 7132 can be added as an option if required The full functionality is described in Type 2250 Light Product Data sheet BP 2151 Enhanced Portable Noise Monitoring Unit Type 3655 B This stand alone unit based on Hand held Analyzer Type 2250 with Enhanced Logging Software BZ 7225 provides enhanced noise monitoring functionality including automatic event detection sound recording and CIC calibration checks for extended periods of monitoring The unit includes space for a modem or router for remote viewing of real time results and to remotely control the unit from a PC Data can be manually synchronised with a PC using Utility Software for Hand held Analyzers BZ 5503 which is included and then be transferred to post processing software such as Evaluator Type 7820 or exported to Microsoft Excel Licenses for Frequency Analysis Software BZ 7223 Enhanced Logging Software BZ 7225 and Sound Recording Option BZ 7226 are also included FFT Analysis Software BZ 7230 and Tone Assessment Option BZ 7231 can be added as options for increased functionality if required Functionality is described in Type 2250 Product Data sheet BP 2025 Noise Monitoring Terminals 3639 All weather Case Type 3535 A GPRS ENM Software 7843 S network Server Client HTTP connection Firewall a optional Windows Vista 090107 Porta
11. he instrument remotely from a PC via the Internet BZ 5503 Utility program is supplied as standard with all Type 2250 L 2250 and 2270 models Evaluator Type 7820 has built in calculation algorithms that allow calculation of compound sound level figures from several contributions Some may have impulse or tone penalties depending on which assessment standard chosen for example ISO 1996 DIN 45645 NES S 31 010 or BS 4142 see Evaluator Type 7820 Product Data BP 1752 Noise Monitoring Systems Fig 9 Network configuration with ENM Software 7843 S For noise monitoring tasks three standard noise monitoring system configurations that include Type 3535 A are available Each system also includes Outdoor Microphone Type 4952 a microphone extension cable and a tripod for mounting the microphone at the correct position and height Portable Noise Monitoring Unit Type 3655 A This stand alone unit based on Hand held Analyzer Type 2250 Light monitors broadband sound levels for short and medium term monitoring durations The unit includes space and power for a modem or router for remote viewing of real time results and to remotely control the unit from a PC Data can be manually synchronised with a PC using Utility Software for Hand held Analyzers BZ 5503 which is included and then be transferred to post processing software such as Evaluator Type 7820 or exported to Microsoft Excel Licenses for Sound Level Meter Software BZ 7130 and Lo
12. le jack Cable length 2 m 6 6 AQ 1782 DC Power Cable for Digi Connect WAN router 0 6 m 1 97 DC Power Cable for Wavecom Fastrack modem Dependent on country Mains Power Cable Length 2m 6 6 TEMPERATURE Operating Temperature e Battery powered 10 to 50 C 14 to 122 F e Charger powered 10 to 40 C 14 to 104 F Charge Temperature 0 to 40 C 32 to 104 F with case lid open Storage Temperature 10 to 60 C 14 to 140 F BATTERY QB 0073 Weight 560 g 1 23 b Nominal Voltage 14 8 V Rated Capacity 6 3 Ah minimum 6 6 Ah typical Rated Energy 98 Wh Type 2250 Operating Time Backlight Off 45 hours typical Expected Life Cycles gt 300 cycles at gt 70 of initial capacity Charge Retention in Storage e 1 year at 20 to 20 C 4 to 68 F gt 80 e 1 month at 20 to 60 C 4 to 140 F gt 80 Standards UL 1642 EU Battery Directive Manufacturer s Declaration of Conformity to IEC IEC 17050 1 Ordering Information Type 3535 A Including e Power Panel ZH 0685 e Mains Cable for Power Panel e 2 x Battery QB 0073 e 2 x Charger ZG 0857 001 e Cable for DC In AQ 1785 e Power Cable for Digi Connect WAN Router AQ 1782 e Power Cable for Wavecom Fastrack Modem AQ 1783 All weather Case Connection 5 5 mm 2 1 mm 0 22 female jack to 5 5mm 2 1 mm 0 18 0 08 female jack Cable length Connection 5 5 mm 2 1 mm 0 18 0 8 female jack t
13. o 4 pin female socket fused Cable length 0 6 m 1 97 CHARGERS ZG 0857 ZG 0857 001 Input Voltage 90 264 VAC Output Current Max 0 9A Output Voltage Max 16 8 V Charge Start lt 16 4V e Step 1 Constant current 0 9 A Lamp orange e Step 2 Constant voltage 16 8 V Lamp orange e Step 3 Charge Termination lt 100 mA Lamp green Charging Time for QB 0073 9 hours typical MECHANICAL Environmental Protection IP 43 WEIGHT AND DIMENSIONS Weight 6 8 kg 14 99 Ib including hand held analyzer Dimensions 390 x 530 x 190 mm 15 35 x 20 87 x 7 48 Max Dimensions of Modem Router 133 x 85 x 25mm 5 24 x 3 35 x 98 Packages and Software Modules Please refer to the Product Data for Type 2250 2250 L 2270 Noise Monitoring Systems Type 3655 A Including e Hand Held Analyzer Type 2250 L 400 with Logging Software e All weather Case Type 3535 A e Outdoor Microphone Type 4952 A e Microphone Extension Cable AOQ 0645 D 030 3 m 9 8 e Tripod UA 0801 e Mains Power Supply for Type 2250 ZG 0426 Portable Noise Monitoring Unit Type 3655 B Including e Hand held Analyzer Type 2250 E with Sound Level Meter Frequency Analysis Enhanced Logging and Sound Recording Software All weather Case Type 3535 A Outdoor Microphone Type 4952 A Microphone Extension Cable AO 0645 D 030 3 m 9 8 Tripod UA 0801 e Mains Power Supply for Type 2250 ZG 0426 Enhanced Portable Noise Monitoring Unit Accessories
14. oftware packages can be used for measuring and reporting e BZ 5503 Utility Software for Types 2250 and 2270 e Evaluator Type 7820 Environmental Noise software LA co bt gt m Exclude Level Sound CH X 19 32 00 19 33 00 LAeq 57 3 dB L xX 19 32 10 19 32 11 LAFmax 47 3 dB LAFmin 41 2 dB LAeq 45 0 dB ti ha Lid E R Dha 18 30 00 18 40 00 18 50 00 19 00 00 19 10 00 19 20 00 19 30 00 19 40 00 19 50 00 20 00 00 20 10 00 20 20 00 2 11 2006 18 26 05 51 7 of 02 11 2006 19 32 10 00 7 d 02 11 2006 19 32 0 C 02 11 2006 19 32 00 02 11 2006 19 33 00 Total Cursor values x 32 0 33 0 db LAPmax 92 8 dB Level 18 2 LASmex 86 2 dB Cumulative 50 5 LAFmin 25 0 dB The BZ 5503 Utility program is an all purpose program that forms the information link to and from your Type 2250 and 2270 see Fig 8 Its primary functions are to manage and archive user data manage the data transfer from a remote noise monitoring location and handle application software updates upgrades and licensing It enables you to perform the following e Use the extensive preview functions to listen to recordings and annotations and view results and photographs including spectra and profiles e Export data from archives into Type 7815 7820 or 7825 for post processing and reporting software applications e Export data to Microsoft Excel or export in XML or delimited text format e Control t
15. r Hand held Analyzers POSTPROCESSING Type 7815 Noise Explorer data viewing software Type 7820 Evaluator data viewing and calculation software Type 7815 Protector software for calculation of personal noise exposure Type 7843 Environmental Noise Management Software for use with Noise Monitoring Software BZ 7232 3639 TCF Type 2250 and Type 4952 Coformance Test 3639 CTF Type 2250 and 4952 Traceable Calibration 3639 CTO Type 2250 and 4952 Onsite Traceable Calibration TRADEMARKS Microsoft and Windows are registered trademarks of Microsoft Corporation in the United States and or other countries Pentium is a registered trademark of Intel Corporation or its subsidiaries in the United States and or other countries Bruel amp Kj r reserves the right to change specifications and accessories without notice HEADQUARTERS Briel amp Kj r Sound amp Vibration Measurement A S DK 2850 N rum Denmark Telephone 45 4580 0500 Fax 45 4580 1405 www bksv com info bksv com Local representatives and service organisations worldwide Bruel amp Kj r Rosendahls 2009 07 BP 2251 11
16. ration 0 3mm 20 m s 10 500 Hz IEC 60068 2 27 Shock 1000 m s2 6 directions IEC 60068 2 29 Bump 1000 bumps at 250 m s IEC 60529 Protection provided by enclosures IP 43 10 Specifications All weather Case Type 3535 A POWER PANEL ZH 0685 Please refer to the Power Panel schematic diagram in Chapter 3 Mains Input 100 240 VAC 0 6 A 50 60 Hz Mains Outputs AC Out 1 AC Out 2 max 0 3A For Chargers ZG 0857 001 Mains Only Operation Without batteries the charger s will supply the DC Outputs Mains Only DC Outputs 16 8 V max 0 9A DC In External supply 12 24 VDC 1A Cable AQ 0175 supplied Charger 1 Charger 2 For Chargers ZG 0857 001 Connections Part Number ZG 0857 001 Chargers Bat 1 Bat 2 For Batteries QB 0073 DC Outputs e DC Out 1 For Type 2250 2250 L 2270 Ext Power e DC Out 2 For Type 2250 2270 Trigger Input e DC Out 3 DC Out4 DC Out 5 Power for auxiliary devices Cables AQ 1782 and AQ 1783 supplied DC Output Voltage Whichever is higher of the DC In Bat 1 Charger 1 and Bat 2 Charger 2 DC Output Switch Switches all DC Outputs on or off Cable and Connection Description Connection 5 5 mm 2 5 mm 0 22 0 10 male jack Cable length 0 25 m 0 82 QB 0073 Batteries Connection 5 5 mm 2 5 mm 0 22 0 10 female jack Cable length 0 15 m 0 49 AQ 1785 DC In Power Cable Connection 4mm 0 16 banana plugs to 6 mm 1 3 mm 0 24 5 ma
17. se monitoring can be rendered unreliable by a number of outside factors which may not become apparent until visual inspection of the system or accessing the measurement system remotely The 3535 A system keeps the remote operator informed of measurement status by sending an automatic SMS text or e mail status update when pre defined conditions or events occur Examples are e System battery level falls below 10 capacity e System memory falls below 10 of full capacity e Automatic calibration check has failed e Measurement has started e Noise level has exceeded a pre defined trigger level Sending the text string info to a Type 3535 A system will initiate an instant status message reply to the originators mobile phone or e mail address a e g damage to the microphone or interruption of the power supply Fig 6 Outdoor Microphone Type 4952 Fig 7 Type approval independently approved to Class 1 accuracy by PTB in Germany Outdoor Microphone Type 4952 diaphragm 050164 1 can be set to 0 The compact and lightweight Outdoor Microphone Type 4952 is suitable for long periods of unattended outdoor operation and the ideal choice for use with the Type 3535 A system The microphone is protected against the effects of wind rain and perching birds and with the hand held analyzer fulfils IEC 61672 Class 1 requirements The reference direction angle of incidence or 90 dependent on the noise monitoring applica
18. sing software BZ 5503 Utility Software 7815 Noise Explorer 7820 Evaluator 7825 Protector 7843 ENM 2250 2250 L 2270 Hand held Analyzer UA 0801 Tripod with Application Software Logging Enhanced Logging 2250 2270 only Sound Recording 2250 2270 only Tone Assessment Noise Monitoring BZ 7232 090072 Application Software Logging software will log data down to second resolution and log Lap and Lag at 0 1 second resolution Broadband data statistics and frequency spectra may be logged and markers may be set manually or by level triggers Graphical displays include an overview profile of the entire measurement and a detailed profile for a selected period Enhanced Logging adds Lan Ladens Levening and Laight calculations as well as two concurrent Leq periods With long duration measurements it provides periodic reports continuous measurement automatic reboot and resumption of operations in case of power failure Briel amp Kjaer s patented Charge Injection Calibration CIC is available in the Logging and Enhanced Logging applications For 10 seconds CIC injects an electrical signal into the microphone diaphragm checks the entire measurement chain and delivers a pass result to show that all is in order CIC may be activated manually or automatically at preset time intervals ii 1 at i 1 a i r l LF cal igh vt Aesth vir i I 55 i 4 My 40 Wi Jae i 1 I
19. tion Inside the microphone is a highly stable pre polarized free field 1 2 microphone cartridge with a stainless steel You can mount the microphone on a tripod using Tripod Adaptor UA 1707 or on a 1 thread pole Outdoor Microphone Type 4952 A comes with the Tripod Adaptor included Type 4952 is recommended for extended use in all kinds of weather while for less demanding environments the analyzer s standard microphone is adequate A lightweight and a heavy duty tripod is available for all the microphones and up to 100m of microphone extension cable can be used while maintaining measurement accuracy Reliable Unattended Measurements Measurement integrity is of primary importance in noise measurement situations whether for inside or outside or for attended or unattended measurements Class 1 as described in the current sound level meter standard IEC 61672 1 2002 is the grade of accuracy often required for hand held measurements Physikalisch Technische Bundesanstalt PIB Braunschweig und Berlin Type epproval certificate under Germen lew dated 02 11 2005 Innerstaatliche Bauartzulassung vom 02 11 2005 21 21 l 05 02 2 Neufassung der Anlage Revision 2 of the Annex Seite 1 von 11 Seiten Page 1 of 11 pages Zulassungsinhaber Issued to Br el amp Kjaer GmbH Linzer Str 3 28359 Bremen Bauart Integrierender Schallpegelmesser in respect of Br el amp Kj r 2250 Zertifikatsgeschichte 502 2 Ne 21
20. ust one power source remains in operation including during hot swapping of batteries The power panel output voltage can be measured and logged by Types 2250 and 2270 If you are connected to the measuring system via an internet LAN or GSM network you can check the voltage remotely or automatically receive an SMS text or e mail warning message if it drops below a preset limit Timers The 2250 2250L 2270 timer function provides intelligent power consumption management This powerful facility controls precisely when the system is actively measuring and when it is in the more energy efficient stand by mode awaiting the next programmed measurement period Type 3535 A System Solution All weather Case Type 3535 A is the centre of a flexible system for noise measurement recording and analysis Any Type 2250 2250 L 2270 application software module may be used with the hand held analyzer although for most scenarios the Logging Enhanced Logging and Frequency Analysis software are well suited For details see the Briel amp Kj r Webpage Type 2250 2250 L 2270 Fig 3 All weather Case Type 3535 A system diagram Fig 4 Enhanced Logging with Type 2250 2270 Noise Measurement System with All weather Case Type 3535 A 4952 Outdoor Microphone 3535 All weather Case with Modem Router and Hand held Analyzer fe Z AO 0441 AQO 0645 Modem LAN Eem Microphone Cable Internet connection PC with post proces
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