Safety Instructions - GREISINGER GTD 1100 Bedienungsanleitung

H55.0.01.6C-02

Safety instructions:

This device has been designed and tested in accordance to the safety regulations for electronic devices.
However, its trouble-free operation and reliability cannot be guaranteed unless the standard safety measures and
special safety advises given in this manual will be adhered to when using it.
1. Trouble-free operation and reliability of the device can only be guaranteed if it is not subjected to any other climatic
conditions than those stated under "Specification".
If the device is transported from a cold to a warm environment condensation may result in a failure of the function. In
such a case make sure the device temperature has adjusted to the ambient temperature before trying a new start-up.
2. If there is a risk whatsoever involved in running it, the device has to be switched off immediately and to be marked
accordingly to avoid re-starting. Operator safety may be a risk if:
• there is visible damage to the device
• the device is not working as specified
• the device has been stored under unsuitable conditions
In case of doubt, please return device to manufacturer for repair or maintenance.
3. Warning: Do not use these product as safety or emergency stop device, or in any other application where failure of
the product could result in personal injury or material damage.
Failure to comply with these instructions could result in death or serious injury and material damage.
Measurings And Functions
Measuring The Athmospheric Pressure (Slide Switch At "baro")
The device measures the absolute pressure of the ambient atmosphere. This is not necessarily the same like the
values given by weather stations! The weather stations' values are pressure at sea level. Usually the sensor is placed
above sea level. If the value at sea level is to be measured, the pressure decay caused by the elevation has to be
considered! The device can correct the pressure. Therefore SEA.L (Sea Level correction) has to be activated in the
configuration and the elevation above sea level (Alti = Altitude in [m]) has to be entered to get the correct value.
The tendency of the absolute pressure (falling or rising) can be used as an important indicator for weather forecasts.
The display of the tendency can be activated via device configuration.
Measuring The Altitude / Elevation (Slide Switch at "alti")
The meter calculates the current altitude from the absolute pressure: Pressure falls with rising altitude.
It has to be considered that not only changes in altitude but also changes in the weather has influence to the altitude
display. To correct the weather influence the displayed altitude can be corrected by the keys. To do so press the keys
"up" and "down" simultaneously, 'Corr' will flash in the display. By means of the keys "up" and "down" the displayed
value in m or ft (dep. on the configuration) can be corrected. The input will be finished by pressing the left "enter" key or
after 20 seconds without changes.
If the display was corrected at a known altitude of a landmark (e.g. contour lines in maps, marks at railway stations or at
buildings or other landmarks) and the weather is stable, the display is very precise (e.g. deviation within a view meters
per day).
At instable weather conditions with changing pressure measuring faults of 10 meters per hour are possible!
Thunderstorms can cause even larger erros. But keep in mind: This error source is equal to any barometric altimeter,
absolutely independent from the meters precision!
Weather-Example:
Absolute pressure at 340
meters above zero.
Changes up to 1mbar/h!
1mbar change is equal to
about 8.5m.
If used in alpine terrain the weather phenomenon ‚Inversion' as a potential source of error has to be also considered.
Hint: At begin of an observation of the altitude e.g. at the start of a tour, don't forget to reset the min/max and
sum memories, see below!
If the exact altitude was entered at the beginning of a tour and in the following there are measuring
errors of more than 5m per hour a change in the weather is probable! E.g. measuring is to high -> the
weather probably gets worse.
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