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Environmental FAQ

> 1700: Must I connect to both 2260 AC inputs for calibration?

> 2238 and 2260: Will they measure inside an MRI scanner?

> 2238 and HyperTerminal: Why is data not in columns?

> 2238 Mediator: How do I export AUX1 and AUX2 data to a spreadsheet?

> 2238 Mediator: How do I remove or install modules?

> 2238 Mediator: Should the windscreen correction be On for UA 1404?

> 2238 Mediator: What is the fastest reaction time of the peak-detector?

> 2238 with filter option: How do I make a spatial average easily?

> 2238: How do I use AUX inputs for DC Measurements?

> 2238: How long an extension cable can I use between preamplifier and Type 2238?

> 2238: What causes erratic levels when using extension cables?

> 2238: What is the minimum Preset Measurement Time for Type 2238?

> 2250: Can I move an SD/CF card to another 2250?

> 2250: Can I use a modem for remote download of data?

> 2250: Do you have a block diagram?

> 2250: How are projects and job files structured?

> 2250: How is its low-frequency response?

> 2250: What are templates, setups, preferences and users?

> 2250: What are the hidden features of the hinged cover?

> 2250: What headphone gain settings should I use?

> 2250: What output gain setting should I use?

> 2250: Where did the range switch go?

> 2260 and 2238: How do I measure high sound levels?

> 2260, 7820: Why is Broadband unlike Sum of Spectrum?

> 2260: Can applications be shared between 2260s?

> 2260: Can I use a timer to control sound recording?

> 2260: How do I display vibration levels in dB re 1 µm/s2?

> 2260: How do I get Taktmaximal logging?

> 2260: How do I input GPS data?

> 2260: How do I measure Infrasound down to 2Hz?

> 2260: How do I use rechargeable batteries?

> 2260: How do I use the 20dB attenuator ZF-0023?

> 2260: How do I use UL-1008 with sound recording?

> 2260: How long extension cables can I use between preamplifier and 2260?

> 2260: What are the exponential averaging times for spectra at low frequencies?

> 2260: Where can I find documentation on Data Format and Serial Interface Commands?

> 2260: Why don’t timers start at the specified time?

> 2260:How does sound recording use WAV files?

> 2260B Investigator: Can I change the range by remote control via modem?

> 2260B Investigator: How do I restart a measurement after download to 7820 Evaluator?

> 2260D, BZ7204: Can I get decays into a spreadsheet?

> 2260D: How do I measure very high sound reduction indices?

> 2260D: Should I use a diffuse-field microphone?

> 2260E: How can I measure low intensity levels?

> 2260E: How can I measure very low sound levels?

> 3639: What has been done to protect the equipment inside the Noise Monitoring Terminal Type 3639 from the environment?

> 3639: What precautions should I take to ensure safe operation of the Noise Monitoring Terminal Type 3639?

> 3639: What precautions should I take to prevent tampering and theft of the Noise Monitoring Terminal Type 3639?

> 3642: Is it possible to connect from the Noise Management Server Type 3642 to legacy NMTs?

> 3642: What kind of database is used?

> 3642: Why do I have to download the MP3 file from the NMT when I want to hear an event?

> 3923: How do I connect a Microphone Boom to my 2260D?

> 4152, 4153: How do I use them with 2250?

> 4295: How do I get polar plots of the directional response?

> 4296: How about some polar plots of the directional response?

> 4296: Will it work up to 10 kHz?

> 4942: Can I replace Microphone Type 4189 on my 2260?

> 7810: Although I am able to get the model to run with point receivers, the “grid” option is grayed out, so I am not able to compute contours.

> 7810: Can I copy Predictor information to Word or Excel?

> 7810: Can I import landscapes from MOSS?

> 7810: Can I modify the project description?

> 7810: Can I transfer a model to another user?

> 7810: Can Predictor be installed on a network?

> 7810: Do I need to install the new Borland database engine?

> 7810: Error while printing “integer overflow”.

> 7810: Error while printing “point division by 0”.

> 7810: How can I calculate my model with another calculation method?

> 7810: How can I copy items to another project?

> 7810: How can I make a backup of my project(s)?

> 7810: How can I make a copy of a Predictor project?

> 7810: How can I model the wall of a building as a sound source in Predictor?

> 7810: How can I print to a file?

> 7810: How can I speed up my calculation?

> 7810: How can I zip my project?

> 7810: How do I maintain my data?

> 7810: How do I model rail traffic in the ISO method?

> 7810: How do I model the effect of indoor noise sources outside the building?

> 7810: How do I model the real height above track height using absorbing barriers in a RLM2 model? What does this mean?

> 7810: How does ‘source alignment’ works for roads in a CRTN model.

> 7810: How does Predictor know that items are copies of each other?

> 7810: How is a railway station modeled in practice using the RLM2 method? For example, if I have regional trains that arrive at the station every 10 minutes in both directions and stop for 1 minute at the platform.

> 7810: I cannot enter a specific item type - it is grayed out in the menu option.

> 7810: I cannot enter group reductions - this option is grayed out.

> 7810: I get strange (very low) results on receivers in front of buildings and close to the road in a CRTN model.

> 7810: I get strange results on receivers very close to the road in a CRTN model.

> 7810: I have bought a License for using Predictor Plus 7810A on an additional core on same PC (BZ-5703). I am very happy that I can use the full power of my Dual Core PC for calculations. However, sometimes I want to only use the one core, so that I can use my PC to work on other tasks while it calculates in the background. How can I do that?

> 7810: I have calculated a grid in an ISO industry model and a grid in a CRTN LAeq model. However, I am not able to show the cumulated contours by using the other model as background model. What can be wrong?

> 7810: I have calculated the model but do not see results.

> 7810: I have imported a DXF-file as a vector map but do not see the vector map on the model.

> 7810: I want to join two or more vector maps into one vector map.

> 7810: Message “multiple net files in use”.

> 7810: Predictor does not permit me to calculate.

> 7810: Predictor has shown an error message and I cannot open my model.

> 7810: Sometimes when I copy an item from one model to another model, there is a strange effect. The item itself is added to the model, but another item disappears. Why is that?

> 7810: What are the recommended system requirements for Predictor?

> 7810: What are the restrictions for a DXF-file to be used in Predictor?

> 7810: What does the ‘Discard attenuation’ option at the Link tab-page of the source attribute form mean?

> 7810: What does the ‘Discard reflection in building’ option at the Link tab-page of the source attribute form mean?

> 7810: What effect does a height line have on the calculation?

> 7810: What is the maximum size of a Predictor project?

> 7810: Which access rights are necessary for using Predictor?

> 7810: Which printers can be used with Predictor?

> 7810: Will existing projects be overwritten by the Predictor setup program?

> 7812: Can I import data from MapInfo?

> 7812: Can I make models in ArcGIS and make calculations using Lima in the background?

> 7812: Can I see on screen what the colours used in the noise contours actually represent?

> 7812: Can I show maps of, for example, buildings with more than 200 people inside and exposed to a noise level over 75 dB?

> 7812: How can I calculate the incident sound level at a facade in accordance with the END 2002/49/EC. I still want the reflections from all buildings except from the one to which the receiver point is attached.

> 7812: How can I import data from AutoCAD?

> 7812: How can I print to a file?

> 7812: How can I see if the calculation capacity is enough for the model under investigation?

> 7812: How can I see, after installation, which configuration is active?

> 7812: How can I speed up my calculation?

> 7812: I cannot find instructions or help on a particular feature. How do I get help?

> 7812: I get different colours in PLOT and DXF files from those in the BNX result file. How do I get the same colours?

> 7812: I have read on the Brüel & Kjær website that noise levels from Brüel & Kjær’s Environmental Noise Management Server Type 3642 can be imported into Lima. However, this is not documented in the latest Product Data sheet. Is this feature available with Lima Type 7812 Version 5.0?

> 7812: The Settings|Audio-presentation of results menu item cannot be activated.

> 7812: What coordinate systems must topographical data be in?

> 7812: What is the maximum size of a Lima project?

> 7812: What resolution of GIS map is good enough for use in noise mapping?

> 7812: Which coordinate system should I use on GPS units used with measurement instruments?

> 7812: Why can’t I access Lima functionality?

> 7816: How can I convert spectra?

> 7820: Can 1/3-octave spectra have negative levels?

> 7820: Can I calculate Perceived Noise Level (PNL)?

> 7820: Can I split long recordings into smaller parts?

> 7820: How does daylight saving affect logging?

> 7820: Why is sound recording delayed 3 seconds?

> 7825 Protector: Can I attach a worker's audiometer results to his exposure?

> 7830, version 4.5: How can I reuse data?

> BZ-7204 v.2: How do I avoid overload in RT measurements with a pistol?

> BZ-7205: Can I trust the A-weighted results?

> BZ-7205: Why is the element R<sub>icw</sub> higher than the total?

> DIRAC: Which microphones can I use for LF measurements?

> ODEON: Can I change the colours and scale in grid displays?

> ODEON: HAAS - Who was he?

> ODEON: How do I scale a .dxf import from CAD?

> ODEON: How do I simulate background noise for STI?

> Sound Level Meter Standards: Can I still use my old SLM?

> UA-1404 Windscreen: Does it simulate wind noise in the human ear?

> Why are attack and release times different in modern instruments?