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Julia Austin

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Everything posted by Julia Austin

  1. Which column corresponds to which sensor depends on how the logger is configured, so check the Site Information Editor window in SDR to see what sensor is on each channel.
  2. Hello, Aislan - unfortunately once the satellite iPack has already sent the data file from a specific date, it will not send it again. Did you not receive the original RWD file from that date?
  3. Technical Support Bulletin 11 ? SymphoniePLUS3 SD Card Formatting 13 August 2012 Scope This bulletin applies to SymphoniePLUS3 data loggers with serial numbers below 494102284 and firmware version 34 or lower. These loggers shipped from NRG Systems before 1 August 2012. Any SymphoniePLUS3 logger shipped after that date has newer firmware installed that eliminates this SD card issue. Description of Issue NRG Systems has discovered a vulnerability in the SD card data storage of SymphoniePLUS3 data loggers. The problem is an addressing issue that causes the SD card to stop storing logged data. We have seen this condition develop after approximately 250 daily raw files are written to the SD card. In some cases, the Symphonie iPack?s programming can also become corrupted. This issue does NOT affect earlier Symphonie and SymphoniePLUS loggers which use an MMC memory card. Resolution NRG Systems has developed a proprietary format for SD memory cards used with SymphoniePLUS3 loggers that resolves this issue. SD cards that have been formatted using this structure will work with all Symphonie loggers and will prevent the issue with SymphoniePLUS3 loggers described above. NRG Systems factory formatted cards can be identified by the marking ?NRG FAT-A? on the card label. This will also show as the ?volume label? if inserted in a PC and viewed in Windows Explorer. A Windows application - SymphoniePLUS3CardFormatter.exe - has been released and is available as a free download by following this link: http://nrgapps.com/SDformatter.php All SD cards used in SymphoniePLUS3 loggers that are not marked ?NRG FAT-A? must be formatted using this program. Alternatively, NRG can provide newly formatted SD cards upon request free of charge. What you should do: 1) Identify which of your sites have SymphoniePLUS3 data loggers. 2) Check RWD file numbers from each site to estimate the number of days remaining before reaching 250. SymphoniePLUS3 creates daily files, and each RWD contains a file number counter in the 3 digits to the left of the .RWD file extension: SSSSYYYYMMDDXXX.RWD SSSS = site number; YYYY = year; MM = month; DD = day; XXX = file number 3) Schedule a field visit to install a properly formatted SD card before it reaches file number 250. If it has already stopped logging, be prepared to reprogram the attached iPack (if present) with its IPK file. Feel free to contact us if you need assistance with this. We are sorry for any inconvenience this may cause you, and please contact NRG Technical Support if you have any questions: support@nrgsystems.com.
  4. Hello - hopefully by now you have already received the iPackACCESS manual which includes all the address registers. If not, you may download it from here: http://www.nrgsystems.com/TechSupport/Documentation.aspx
  5. Because all GS sensors are "smart" sensors and have their own microprocessor and memory storage, it is possible to install them on site as stand-alone measurement devices without installing a GS-Logger at the base of the tower. There are a couple different ways to deploy GS sensors as stand-alone measurement devices. The first is to install the sensors and booms on the tower, connect the sensors to the GS-Pod(s) without using a GS-Logger at all. At the end of the measurement period, the GS-POD or GS sensor can be removed from the tower and connected to the GS-PAD to download the data. Any non-GS sensors connected using a GS-ASIM will rely on the GS-ASIM for data storage, so in this case it is the GS-ASIM that is connected to the GS-PAD to download the data. The major drawbacks to using the GS sensors without a GS-Logger are: 1) loss of real-time boom adjustment utilizing orientation and verticality features (detected by the logger communicating with the sensor and GS-Pod); 2) a lag of up to 24 hours of data that can be pulled from the GS-Pod or GS sensor. Without the logger at the base of the tower to force the sensors and PODs to "sync", the data set extracted using the GS-PAD may end a few hours earlier than when the GS sensors and GS-PODs were actually removed from the tower. A different approach that overcomes these drawbacks is to bring the GS-Logger to the site at the beginning and end of the measurement period. During installation, perform the tower sync function. Then when you are ready to extract the data, bring the logger back out to the site, do another tower sync, and then the data can be removed from the logger [rather than having to tip the tower down and remove the GS sensor(s) and GS-POD(s) to get the data].
  6. It sounds like an extra byte or two may be getting added to your incoming messages. Has this problem existed from the beginning of your monitoring at the site, or did it just start after several months of normal operation? Can you send us some *.RWD files to review?
  7. Technical Support Bulletin 11 ? SymphoniePLUS3 SD Card Formatting 13 August 2012 Scope This bulletin applies to SymphoniePLUS3 data loggers with serial numbers below 494102284 and firmware version 34 or lower. These loggers shipped from NRG Systems before 1 August 2012. Any SymphoniePLUS3 logger shipped after that date has newer firmware installed that eliminates this SD card issue. Description of Issue NRG Systems has discovered a vulnerability in the SD card data storage of SymphoniePLUS3 data loggers. The problem is an addressing issue that causes the SD card to stop storing logged data. We have seen this condition develop after approximately 250 daily raw files are written to the SD card. In some cases, the Symphonie iPack?s programming can also become corrupted. This issue does NOT affect earlier Symphonie and SymphoniePLUS loggers which use an MMC memory card. Resolution NRG Systems has developed a proprietary format for SD memory cards used with SymphoniePLUS3 loggers that resolves this issue. SD cards that have been formatted using this structure will work with all Symphonie loggers and will prevent the issue with SymphoniePLUS3 loggers described above. NRG Systems factory formatted cards can be identified by the marking ?NRG FAT-A? on the card label. This will also show as the ?volume label? if inserted in a PC and viewed in Windows Explorer. A Windows application - SymphoniePLUS3CardFormatter.exe - has been released and is available as a free download by following this link: http://nrgapps.com/SDformatter.php All SD cards used in SymphoniePLUS3 loggers that are not marked ?NRG FAT-A? must be formatted using this program. Alternatively, NRG can provide newly formatted SD cards upon request free of charge. What you should do: 1) Identify which of your sites have SymphoniePLUS3 data loggers. 2) Check RWD file numbers from each site to estimate the number of days remaining before reaching 250. SymphoniePLUS3 creates daily files, and each RWD contains a file number counter in the 3 digits to the left of the .RWD file extension: SSSSYYYYMMDDXXX.RWD SSSS = site number; YYYY = year; MM = month; DD = day; XXX = file number 3) Schedule a field visit to install a properly formatted SD card before it reaches file number 250. If it has already stopped logging, be prepared to reprogram the attached iPack (if present) with its IPK file. Feel free to contact us if you need assistance with this. We are sorry for any inconvenience this may cause you, and please contact NRG Technical Support if you have any questions: support@nrgsystems.com
  8. Yes - it looks like we transposed some numbers. Here is the correct info for the 60 m XHD with and without ginpole: 60m XHD w/gin pole 60m XHD w/o gin pole WY to TX $3163.62 $2732.15 IA to IL $1494.10 $1085.93 SD to NM $3529.05 $2347.51 OK to NC $2839.35 $2426.38
  9. Hi, Nick - good to know. Anything that can reduce the miles and cost of shipping towers is a big help, esp. if a customer is trying to do an installation on a budget. We'll keep this in mind if we hear of anything. Thanks!
  10. The current version of the 80 m XHD TallTower manual (rev 6.0) contains the new installation recommendations referred to below. The latest manual can be downloaded from here: http://www.nrgsystems.com/TechSupport/Documentation.aspx Technical Support Bulletin 009 - 80 m XHD TallTower Technical Support Bulletin 2 March 2012 Based on information from recent field installations and as part of our continuous improvement process, we are developing new recommendations to enhance and improve safety during the 80 m XHD installation procedure. These revisions will contain some important changes related to recommended guy wire tensioning during the lifting or lowering process. Proper guy wire tension is critical for a safe and successful tower installation. Please do not raise or lower your 80 m XHD until you receive these revised safety guidelines. Some of these revisions will take approximately one month to perfect and verify. At that time, we will release a new version of the installation manual and send a follow up note, highlighting changes to the installation method, and link to the new version of the 80 m XHD installation manual. We understand that this delay may inconvenience you, and we will do everything we can to complete our work as quickly as possible. We greatly appreciate the feedback we have received from you, as well as allowing us to be directly involved with some of your installations. As always, please contact NRG Systems Technical Support with any questions.
  11. Technical Support Bulletin 010 ? SymphoniePLUS3 Channel 7 Applies to serial numbers below 494101200 13 March 2012 NRG Systems has found a problem in the way the SymphoniePLUS3 (with rev. 33 and lower firmware) calculates direction data on channel 7. The problem affects both the direction average and standard deviation. While the logger is performing certain housekeeping tasks, channel 7?s ?channel type? is incorrectly changed from ?vane? to ?analog?, thereby applying the inappropriate averaging algorithm to the data. The degree to which this problem exhibits itself depends upon the number of readings which cross the vane potentiometer?s dead band (some vane readings taken from northwest and some taken from northeast within a 10 minute interval). For 10 minute intervals where this distribution of readings occurs, errors result in both the average and standard deviation for channel 7. Affected readings will noticeably differ from other vanes reporting from the Channel 7 deadband direction. For 10 minute intervals in which the wind is primarily from the southwest and southeast of the dead band, no errors result. There are several options for dealing with this problem. You may move the vane currently on channel 7 to channel 8 (if it is available) or to channel 4, 5, 6, 9, 10, 11, or 12 by using a Vane SCM card. Vane SCM cards will be available upon request, and provided and shipped at no charge. You may choose to do nothing now, and at your convenience send the logger(s) to NRG Systems for an upgrade when either your measurement project is complete or after your next site visit. Any SymphoniePLUS3 loggers received before May 2014 will receive updates at no charge, and NRG will cover return shipping. You may return your logger(s) to NRG Systems immediately for an upgrade at no charge. Contact us for an RMA number, and we?ll provide shipping instructions. Updates will be done within a couple days and shipped back to you at no charge, and the logger will have an additional 2 years of warranty coverage. Unfortunately, we do not know of a way to correct for this error in post processing. This firmware issue is confined to the SymphoniePLUS3?s channel 7 and does not affect channel 8 or any other channels on the logger. Please contact NRG Systems Technical Support with any questions.
  12. Hello, Aislan - the first thing to confirm is that the WindLinx account is activated through the service provider, Wireless Innovation (www.windlinx.com). Assuming the account is set up and active, please check that the information unique to the 2 new iPacks you're trying to install (Mailbox Name, Mailbox Password, Sender's Email Address, Email Subject Line) isn't identical to the information copied from an old IPK file. If you send me your iPackGPS serial numbers and the IPK files you've programmed into each one, we can look into the problem further.
  13. In addition to safety considerations, it is important to factor in the cost of the used towers. While many of these are available for a relatively low price, the cost and logistics involved with shipping these towers to the new site can quickly add up and be quite costly. As a comparison, NRG Systems offers free ground transportation for all new towers, direct to the site. This benefit alone may make it advantageous to install new towers. As a comparison on costs: SYSTEM DESCRIPTION WEIGHT LOGISTICS COST Iowa to Illinois ~154 miles COST Wyoming to Texas ~672 miles COST South Dakota to New Mexico ~891 miles COST Oklahoma to North Carolina ~1211 miles 60m XHD w/gin pole 4274 lbs. Intermodal freight (surface) $1,494.10 $3,163.62 $3,529.05 $2,839.35 60m XHD 3215 lbs. $1,085.93 $2,732.15 $2,347.51 $2,426.38 50m XHD w/gin pole 3843 lbs. $1,085.93 $3,751.36 $2,384.51 $2,839.35 50m XHD 2777 lbs. $991.10 $2,098.56 $2,340.98 $1,426.36
  14. Every tower installation should include new guy wires. It is very important from a safety perspective to not reuse any guy wires. The reason guy wires should not be reused is because they are the primary, most wearable parts of a tower. Guy wires are made up of multiple strands of high strength, steel wire. When the wire is turned sharply (e.g. to secure wire rope clips, or swedged to guy rings), or stretched severely due to severe wind events, the wire is made more brittle because of the physical stress resulting from bending breaks in the molecular bonds. Fissures also form and introduce corrosion deep into the wire, which also causes brittleness over time. Re-using guy wires is not considered a best-practice for all of these reasons, and most notably causes safety concerns.SENSORS It is strongly recommended you consider replacing the anemometers to ensure accuracy in the data. We also suggest that all sensors be replaced, particularly those that were installed on the used tower for a long period of time. Some sites are more harsh to sensors than others, which would lower the life of the sensor. SENSOR BOOMS The current NRG Systems? sensor boom is 95?, and is IEC 61400-12 compliant. If you have earlier, legacy booms that are shorter, you need to consider replacing those booms in order to be compliant with more recent regulations. SENSOR WIRES The exterior sensor wire sheath does age over time due to exposure to the sun?s UV rays and climate. Replacement of sensor wires should also be considered. NRG Systems has several tower upgrade kits available, including one for new guy wires. Kit part #s are listed below: Sensor and sensor wire replacement kit, #40C #7273 Sensor and sensor wire replacement kit, Class 1 Measnet #7274 Sensor and sensor wire replacement kit, Class 1 Otech #7275 Sensor and sensor wire replacement kit, #40C & Class 1 Measnet #7333 Sensor and sensor wire replacement kit, #40C & Class 1 Otech #7334 Sensor and sensor wire replacement kit, #40C & WindSensor #7335 Guy wire replacement kit #7276
  15. Some tower locations require the top section to be painted per FAA guidelines. In order to meet this requirement, the use of FAA-regulated paint is also a consideration. If the used tower does not have a painted top section or if it is not clear whether the paint is FAA regulated or not, we suggest purchasing a painted top section from NRG Systems. NRG Systems offers a choice of two solutions that address a requirement for painted towers: 1. The ?Hi-Vis? solution consists of the top third of the tower being painted tubes: #4609 Tube assembly, flared, lanced, 203mm (8?) x 2.2m (87?), orange #4610 Tube assembly, flared, lanced, 203mm (8?) x 2.2m (87?), white 2. The ?Painted? option is a fully painted tower from top to bottom. Please speak with your NRG Sales Representative for part numbers and pricing for this option.
  16. This question does not have an easy answer, as it all depends on where the towers were previously installed. If the conditions were harsh (corrosion or icing for example), the life of the towers will be compromised. Here are a few things to look for when deciding whether or not the towers are still in good condition: TUBE & GUY WIRE CORROSION: Rust on the tower tube surface indicates the tower may have either experienced a corrosive environment or be a sign of age (or both). All NRG Systems tubular tower components are hot dipped, galvanized steel and in normal environments may not rust for many years. While surface rust is not going to compromise the strength and integrity of the structure, rust is an indication of age and may also be indicative of the guy wires needing replacement. If rust is exhibited through any of the tubes, that particular tube should be discarded. Tower tubes corrode fastest in coastal environments; reports indicate that tower tubes in this environment can corrode and become unusable in 1 year or less. Tower tubes are reported to last longer in dry climates such as deserts, where corrosion is minimal. In these environments, tower tubes are reported to last up to 10 years. Towers exposed to agricultural fertilizers can also result in advanced tube and guy wire corrosion. NRG Systems utilizes a high quality, advanced 2-part epoxy painting process for the painted towers. This painting process significantly improves tower tube corrosion resistance. DENTED TUBES: While a minor dent and ding on a tower tube has little effect on its structural strength, severely dented tubes could have an effect on the structure, especially if the tube is located in a section of tower that experiences high compressive forces during the tower lift (mid-level sections). If these tubes must be used, locating the tubes on the lower sections of the tower is recommended. If there is any doubt, throw it out and contact NRG Systems to arrange for replacement tubes.
  17. We have been asked by several customers if we offer a manual hoist for assistance in lifting an 80 m XHD TallTower. NRG Systems does not offer such a hoist ourselves; however, we have conducted testing and can recommend a Tractel (Tirfor) manufactured hoist, model TU-28. In Europe, this same model is a TU-16. Both have a capacity rating of 4,000 lbs (1,360 Kg). In addition to this particular hoist, we also recommend using the Tractel-supplied cable, which is 7/16? (11mm) diameter) with a 4x26 construction. Approximately 750 feet (228.6m) of cable is recommended. Website for Tractel provides more detailed information: http://www.tractel.com
  18. Hello - another possibility is a dead or weak iPack battery. If the rechargeable battery is more than 2 years old, it may be time to change it. The iPack may have been able to call when the PV panels were charging the battery well, but over time, the rechargeable batteries do lose their capacity to hold a charge well.
  19. A "mismatched CRCs error" is typically caused by failure to enter an encryption code in the SDR software's Site Information Editor window that matches the encryption code programmed into the logger. If you edit the site information in SDR to include the correct encryption code, data files will look normal. Once in a while, a bad CRC error may show up when the logger has been damaged, but this is uncommon. Let us know if we can assist you further.
  20. The 80 m XHD TallTower installation procedure requires pull-testing anchors to 66.7 kN (15,000 lbf). The attached document provides some options for pull-testing anchors to the required load when heavy machinery is unavailable. 80m_Anchor_Pull_Test_Equipment.pdf
  21. The winch is securely anchored to the ground during the tower installation process, and the winch cable is spooled in horizontally. The warning in the winch manual you are describing above refers to a situation where a load would be hanging from the winch (lifting an engine out of a car, for example). At no time during the tower installation process is any part of the tower directly hoisted into the air by the winch. The TallTower installation manuals have some detailed photos showing the safe and correct usage of the winch to lower the ginpole (which raises the tower); you can find the manuals under "Documentation" in the Tech Support section of the website. The point at which crew members adjust the back guy wires is when the tower is almost at 90 degrees. There is minimal tension on the guy wires and winch cable at this stage of the installation. The greatest loads on the winch are when the tower is barely off the ground. Please note that we offer a tower training program that can teach you how to install our towers safely and efficiently. Available dates can be found in the Tech Support section of our website.
  22. Please contact Tyler in our Tech Support Department - he can assist you with this. You can call him at 802-482-2255 x194 or email him at tms@nrgsystems.com
  23. The part of the rock anchor that expands and holds is the same for all of our rock anchors, but different length rods are available. If you are installing into solid rock that is covered by 1 meter of soil, you will need to order a longer rod version of the rock anchor. However, if the rock into which you're anchoring is exposed and not buried by soil, you can order the shortest rod version of the rock anchor.
  24. You can remove the MMC and then remove the D-cell batteries and disconnect the iPack, and the Symphonie will stop logging.
  25. Terrain slope restrictions for the 80m tower are +/- 3 degrees, compared to +/- 5 degrees on the 60m tower. The terrain slope limit on the 80m tower is geometric, not structural, and has to do with the length of the 80m gin pole and jumper struts. For more information, see the 80m Installation Manual.
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