FAQ

Land Instrument

Can I use a Land Instrument without a LINDE WERDELIN watch?

The unique design of the watch case allows it to act as a carrier for the instruments. However the instrument functions completely independently to the watch. Straps are available to wear the instrument without the watch. Click here for details.

Why do I need to calibrate my instrument?

How is the Freezing Level calculated?

The Freezing Level is the theoretical level at which the temperature is 0°C (32°F). It’s calculated with the altimeter function of the Land Instrument in conjunction with the temperature sensor.

For each 1000 metres increase in altitude, the temperature decreases 6.5° using the formula: Altutude(0°C) = Altutude(current) + (( Temp(current) - Temp(0°C) ) / ISOTERM_TEMP_CHANGE_PR_KM )*1000).

This is where you will find the best snow to ski.

How do the external sensors connect to the instrument?

The temperature and heart rate sensors connect to the instrument via an ultra-fast 2,4 MHz radio frequency. This is the same frequency used in Bluetooth but uses less power.

The temperature sensor transmits readings every ten (10) seconds and the heart rate sensor transmits readings every five (5) seconds.

The sensors have a wireless range of 3 metres to the instrument.

What is the battery life of the instrument?

In addition to general usage the battery life of the instrument is dependent on factors such as ambient temperature and the number of external sensors being used. We recommend turning on the Power Save function to one (1) minute.

If completely charged, using all sensors and in Power Save Mode you will get a full days use. This is based on a normal operating temperature of 20°C (68°F).

Where is the best place to wear the temperature sensor?

To get the most accurate reading of the ambient temperature the temperature sensor should be placed in a position where it is not affected by direct sunlight or body heat, such as on the outside of your jacket or on the shoulder strap of a backpack.

Whilst skiing we recommend to clip the temperature sensor to your ski boot so that the reading taken is that of the snow and thus the most accurate.

What do I do if the temperature or heart rate sensors don?t connect?

When in the function screen of the temperature or heart rate you will be instructed to ‘press enter to connect’. Pressing the middle button will connect the sensor.

If you are having problems connecting make sure the active log is cleared. To do this go to the Log function, select Active Log and Clear Active.

To ensure you are picking up the correct sensor make sure you are 10 metres away from any other LINDE WERDELIN users.

What do I do if I lose a sensor?

Temperature and heart rate sensors can be purchased separately.

How do I change the battery in the sensors?

The temperature sensor uses a CR3032 battery. To replace use a screwdriver to open the back of the sensor.

The heart rate sensor uses a CR2032 battery. To replace use a coin to open the cover on the back of the sensor.

What is the battery life of the sensors?

The temperature and heart rate sensor are designed to be continuously switched on. However this has no affect on the sensor’s battery life when the sensor are not in use.

Each sensor operates with a standard coin-sized battery and has a lifespan of two (2) years depending on use.

What does HPA stand for?

HPA or hectopascals is the unit of measure for air pressure. The barometer measures the atmospheric pressure by. High air pressure generally indicates fair weather whilst low pressure indicates poor weather. The barometric reading is also influenced by the altitude as air pressure decreases above sea level.

1 hectopascal (hPa) ≡ 100 Pa ≡ 1 mbar

Can I upload my logs to my computer?

A USB interface that will allow you to upload your logs onto a PC or Mac is currently in development.