Did you know that Nielsen-Kellerman offers NIST certificates of calibration for all of our Kestrel Weather & Environmental Meters? NIST stands for the National Institute of Standards and Technology, an organization that requires each unit to be tested and approved within strict guidelines to ensure accuracy and quality of conformity. NK offers testing for barometric pressure, temperature, humidity and wind speed. NIST calibration is available for both new and previously purchased units. Call NK for more information at 800-784-4221.
Note: Please factor in a lead time of one week when placing an order for service.
My SpeedCoach GPS with Heart Rate is Not Displaying Heart Rate, What Can I Do?
Written by: Joe Racosky, NK’s Technical Support Engineer
If you’re like most NK customers, you just purchased a new SpeedCoach GPS with Heart Rate and can’t wait to take it out on the water. Make sure you follow the appropriate steps outlined here to ensure you successfully pair your GPS unit with the heart rate monitor for the most accurate readings.
To pair the heart rate belt, follow these simple steps:
- Go to the main menu and select the HRM Pair (Heart Rate Monitor) option.
- At the bottom of the screen, you should observe the “—“ lines.
- Change to your HR Belt ID.
- If after several attempts, the unit still reads “—“, it may be that the Bluetooth module needs to be activated. This should automatically happen when the belt is connected but every so often you may need to activate the belt buckle.
- Remove the belt buckle from the belt and rub your thumbs on the silver connectors.
Please see the figures shown below:
If this does not work, you may need a new battery in the unit.
- Using your thumbs, twist the battery cover off the back of the unit and replace this battery with a new one. If you cannot open the battery door with your thumbs, you can carefully use a coin (a nickel works best).
After your unit is paired with the GPS with HR unit since it no longer reads “—“, it may be possible that the unit is still not showing your heart rate (i.e., it is still showing 0). In this case, you most likely need to help start the electrical connection. Heart rate belts are designed to use sweat as an electrical conduit. When you first put on the belt, your skin may be too dry for a proper connection. Please slightly moisten the two rubber sensors and reattach to your body. Water should work just fine starting this connection. Alternatively you can find heart rate monitor gel online to purchase to facilitate this connection. Please see the figure below for where to lubricate the heart rate sensors on the belt:
Please be aware that NK only can guarantee connectivity with the heart rate belt brand that is provided. But any Bluetooth Low Energy (a.k.a Bluetooth SMART, Bluetooth 4.0, BLE) heart rate belt should be able to be paired and used with the SpeedCoach GPS with HR. The heart rate belt used by the SpeedCoach XL is NOT compatible with this unit however.
If you are still experiencing problems, please contact firstname.lastname@example.org.
In order to optimize battery life, NK recommends balancing your battery pack twice a year. Follow these quick tips to get the most out of your battery. (Applicable for the Cox Box, Blue Ocean Rugged Megaphone and stand-alone batteries).
- Run battery in unit until it turns off.
- Allow battery to sit idle for two days.
- Recharge battery until fill.
We ship every Kestrel 4000 Series Meter exclusively with Made in the USA Energizer® Brand Ultimate Lithium AAA batteries for improved reliability, capacity, cold-weather performance and weight. We strongly recommend that you use only Energizer Ultimate Lithium batteries in your Kestrel Meter. If you choose to install alkaline batteries, we recommend that you do NOT store your Kestrel with these batteries installed, and that you check your batteries for leakage and corrosion a minimum of every 30 days. Damage due to leaking alkaline batteries is not covered under warranty.
Why the switch? There are some definite benefits to using lithium batteries:
- They are lighter.
- They offer much longer life with Bluetooth applications.
- Lithium batteries offer better cold-weather performance.
- Most importantly, lithium batteries WILL NOT LEAK in storage applications, even with the low level power drain of data logging. They protect an expensive Kestrel Meter from internal damage due to inexpensive and leak-prone alkaline batteries.
Keep your Cox Box in the best condition during the off season. For winter storage, NK recommends keeping the battery capacity between 40 and 60% 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.
Now is also a great time to send your Cox Box or other NK products in for tune-ups! With rowing season right around the corner, it’s a great opportunity to get your gear checked out to ensure you have a winning season.
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.
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!