Kestrel Weather & Environmental Meters are manufactured in the Greater Philadelphia region and the temperature at NK is getting colder by the day. Luckily for us, we have a tool to let us know when the temperature drops significantly.
It’s important to note the operational range of the Kestrel thermistor, especially this time of year. The Kestrel 4000 series are data loggers and will record data even when turned off. A Kestrel will remain operational at the following temperatures:
14.0.0 to 131.0 °F
-10.0 to 55. °C
This does not mean that the Kestrel will not record in colder climates. The Kestrel may record lower temperatures even when shut off.
With the exception of the Kestrel 1000, all Kestrel Weather & Environmental Meters measure air, water and snow temperature in real time. Just be sure to remove the impeller before dipping your Kestrel Meter in water or snow. The next time you want to find out how cold it is, just refer to your Kestrel Weather & Environmental Meter.
Thanksgiving, it’s one of America’s favorite holidays. The NK team enjoys getting together with their family and friends and enjoying some good old fashioned holiday turkey, stuffing and the works. One of the long-time traditions that goes along with Turkey Day is the Macy’s Day Parade. Fifty million viewers are expected to tune in to watch the parade tomorrow morning! As you can imagine, there is a lot of behind the scenes work that comes in to play to prepare for the annual event. Today, we caught our very own Blue Ocean Rugged Megaphone (now $100 off, on the news being used to direct event setup.
It just so happens Black Friday is right around the corner and NK is currently offering $100 off the Blue Ocean Rugged Megaphone. Apply the promo code MEGAPHONE100 at checkout for the discount. The offer will expire on Friday, November 29th at 11:59PM.
To see the NK Megaphone in action on CBS news, click here.
Keep your Cox Box in the best condition during off season. For winter storage, NK recommends keeping the battery capacity between 40 and 60% and in the unit. In order to optimize the battery life, NK recommends storing the units as close to room temperature as possible. The cold conditions of the unheated boathouse could negatively affect the battery life over time.
We have recently seen an issue where the LED stops functioning in the Cox Box Mini. Typically the customer will say their Cox Box Mini has stopped working, or that the Cox Box Mini will not take a charge. While both of these conditions may be true, more than likely the unit is still working properly but the LED is just no longer being lit.
If a customer is having issues with their Cox Box Mini, the first thing they should do is charge the unit and check for sound output. Please be aware that even though it may look as if it is not charging, it may just be the LED malfunctioning. If sound is still being produced, then the unit is still functioning and can be restored back to its original condition.
To restore the LED on the Cox Box Mini:
1) Run the Cox Box Mini until the battery dies. Without the LED indication, this requires the customer to periodically check for sound until sound is no longer produced.
2) After the battery has died in the unit, set the Cox Box Mini aside for 2 days to allow for any remaining charge in the battery to dissipate.
3) After 2 days, recharge the battery until full.
4) After this has been done, the LED should function again normally.
Future plans: NK is currently working on a software solution to remove this issue in the field.
Applies to: All models (Direction: Kestrel 4500 only)
To take a wind measurement, you should be in an open area, with 10 times the height of the nearest building away from you. (Eg. if you are near a 2 story home- about 25 feet tall – you should stand 250 feet away) While this is not always possible, it helps to get better measurements. It is also important to take into effect the terrain around you when taking a wind measurement.
Making the measurement with a Kestrel Weather Meter:
For 1000, 2000, 2500, 3000, 3500: You may need to scroll through the list of measurements by using the left and right arrow keys.
For 4000+: You may need to scroll through list of measurements by using the up and down arrow keys.
Instantaneous Wind Speed: This is what is displayed on the Wind Speed screen.
Wind Gust/Max Wind: This is the maximum 3-second sustained value. Use the left/right arrow keys to get to this value. (Note for 4000+: You need to turn this “on” to record max and avg wind by pressing the enter (horizontal bar) key on the max/avg screen. Do this before you begin reporting!)
Sustained wind speed: Scroll to the left or right to find this value. (For 4000+: this value is on the same screen as the max wind speed). For 1000-3500, this value is the average wind speed since turning on the unit. For 4000+, this is in the average since you have selected to record the value. Note, for NWS standards, averages winds are determined over a 2 minute period.
A note about the impeller on your Kestrel: The impeller on every Kestrel is replaceable. It is suggested to replace at least every battery change (batteries are have a life 300-400 hours of active use, depending on the model). The range of the impeller is 0.8 to 89 MPH for 3% accuracy (NWS requirement is 5%), and it will work up to 135 MPH (with less accuracy).
If you are noticing issues with your wind speed reading, or if the impeller is rotating and nothing is appearing on the display except “0” or “—“, here are a few ways to check to see if you need a new impeller.
- If the impeller is rotating but no wind speed is being registered, turn on the unit and place it near the rear of an electro-magnetic source (such as a computer or TV). If you get numbers than “0” or “—“, the unit is fine and you need a new impeller. If you still only get “0” or “—“, please send your unit in for repair.
- If your display is reading numbers other than “0” even though the impeller is NOT rotating, the unit is probably picking up electro-magnetic fields from elsewhere. Remove the source and you should be fine!
- Does it look like your impeller isn’t balanced (i.e. one blade remains down no matter what)? Your impeller is balanced to a very high degree, but there is a tiny magnet incased within the impeller, which gives it that “imbalanced” appearance. The force acting on y our impeller blade is magnetic and not gravitational.
- Does your Kestrel application involve hours of intense high-speed wind? You may want to consider purchasing a replacement impeller once a year to ensure that your Kestrel maintains factory specified accuracy.
If you DO need a new impeller, they are very easy to replace.
- Press firmly on the sides of the impeller with your thumbs to remove the entire housing.
- There is a small arrow icon on the new impeller’s housing. When you insert the new impeller, make sure the arrow is facing the front (display side) of the Kestrel. If your Kestrel has an arrow on the unit (either at the 12:00 or 5:00 position), align the arrow on the impeller with the arrow on the meter. If there isn’t an arrow on your meter, make sure the arrow on the impeller is pointing to the top of the Kestrel (12:00 position).
- Always make sure to press on the sides of the impeller housing rather than the center!
For more than 15 years, Kestrel has used a wind tunnel to make sure our products are fully calibrated to the highest standards before they leave our facility. However, we have recently switched from an open loop tunnel to a closed loop tunnel. Closed loop wind tunnels have a strong advantage over open loop designs mostly due to the precision and consistency that the closed loop offers, especially at lower wind speeds. The closed loop design also allows for less power loss and less turbulence while in use. Temperature in a closed loop tunnel can also be controlled more easily due to lesser influence from outside airflow entering into the chamber.
NK has seen a rise in failures at the connector end of the microphone due to excessive bending of the microphone while plugged into the Cox Box. See picture below for location of wire fatigue.
While we strive to make all of our equipment “kid-proof”, there are limitations to what we can do to prevent excessive bending on this connector. It is still electronic equipment and prone to these types of failures as is any other cable on the market. NK is trying to educate the customers to handle the cables with care and prevent stress from bending to help prevent microphone failures. For example, the customer should NEVER store the microphone cord around the Cox Box as shown here:
If your program has had multiple issues with microphones breaking and can visually see strain on the connector, NK is recommending using a cable tie to help secure this condition. Using a cable tie will transfer the strain from the connector housing where breaks are occurring, to further down the cable where there is less chance of a wire breaking. An example of this connector using the cable tie to secure it is shown here:
It is best to ensure the tie is secured 90 degrees counter-clockwise from the connector key. In other words, you will want to tie the cable on the side opposite from the P5 harness connector so that it doesn’t interfere. An example is shown below:
Note how the strain on the wire has been shifted from the connector shield to further down the wire. This will help prevent future issues with this microphone.
As we approach Halloween, a few of you might be thinking about a ghost hunting trip. Beyond what we see in scary movies, how can you detect if you actually had a paranormal experience?
Some ghost hunters believe that paranormal activity created from a ghost or a spirit can actually change the atmospheric pressure. A change in barometric pressure can be an early warning sign that something is about to happen above the normal. Low pressure is associated with thunderstorm and cyclone activity, which some investigators believe is an opportunity for ghosts to manifest themselves due to the availability of energy. This form of energy would be able to be detected with a barometer such as a Kestrel 2500, 3500, or 4000 (if you pick the NV units, the backlight won’t ruin your night vision). These units would also come in handy in detecting rapidly dropping temperature and humidity, which are also warning signs.
How should you use pressure if you decide to chase Casper? First, take base readings so you can compare the readings you take out in the field. Generally, if there is an increase or decrease of about 20 millibars, then it could be considered paranormal activity. Temperature data logging can also come in handy, which would be a great case for getting a Kestrel 4000 (which logs and stores up to 4000 data points). In theory, when a spirit starts to manifest, it will draw in heat energy around the area, causing a cold or hot spot. On your Kestrel 4000 you would want to set your unit to a fairly quick logging rate, every 2-10 seconds. When your investigation is complete you can look at your log and check for spikes or quick drops in temperature.
Another ghost hunting tool you can find on a Kestrel? A wind meter. When a spirit starts to manifest, it may cause a gust of wind. If you are asking EVP (electronic voice phenomena) questions and you ask the spirit to give you a sign, it may cause a slight breeze. In certain haunted locations, you may feel a sudden gust of wind from a spirit/ghost running by, which could also be picked up by the anemometer on a Kestrel.
For the first time in history, Nielsen-Kellerman has launched a product that measures both wireless speed as well as heart rate. Using a heart rate monitor can not only help you to train smarter but ultimately can make you faster. It is beneficial to monitor your heart to ensure you are training at an intensity and pace that will maximize your training.
Rowing in general is a heart-friendly sport. It is one of the few sports that uses all the major muscle groups without weights. As discussed on rowingforall.com, the consistent and all encompassing activity associated with rowing, combined with being outdoors on the water, has an unparalleled impact on reducing stress.
So what are you waiting for! Drop by NKhome.com and pick up the newest SpeedCoach complete with GPS and heart rate monitoring!