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Instruction Manual for TESA CLINOBEVEL 3
34
Using the key
select the menu point [Options] and confirm your selection with
. Select now [Hide disabled Functions ON/OFF] and confirm with
.
Switch the setting "Hide disabled Functions ON/OFF”
on using the keys
and confirm
with the key
.
The measuring instrument returns to the measuring
mode.
8.8 Switch wireless
connection on/off
With the setting “Radio ON/OFF” the wireless connection can be activated or deactivated.
Using the key
select the menu point [Options] and confirm your selection with
. Select now Radio ON/OFF] and confirm with
.
Switch the wireless connection on using the keys
and confirm with the key
.
The measuring instrument returns to the measuring
mode.
8.9 Gravitation
The inclination displayed by the TESA CLINOBEVEL 3 is based on the gravitation. Around the
globe the gravitation is, however, not constant but it varies with the latitude and with the height
above sea level. Furthermore, variations of the density in the lithosphere cause additional local
deviations.
As an example, the gravity at sea level is
9,78033 m/s
2
at the equator,
9,80620 m/s
2
at 45 degrees of latitude,
9,83219 m/s
2
at the poles.
In the following table the values of gravity for some cities are listed.
Amsterdam
9,813
Istanbul
9,808
Paris
9,809
Athens
9,807
Havana
9,788
Rio de Janeiro
9,788
Auckland, NZ
9,799
Helsinki
9,819
Rome
9,803
Bangkok
9,783
Kuwait
9,793
San Francisco
9,800
Brussels
9,811
Lisbon
9,801
Singapore
9,781
Buenos Aires
9,797
London
9,812
Stockholm
9,818
Kolkata
9,788
Los Angeles
9,796
Sydney
9,797
Cape Town
9,796
Madrid
9,800
Taipei
9,790
Chicago
9,803
Manila
9,784
Tokyo
9,798
Copenhagen
9,815
Mexico City
9,779
Vancouver, BC
9,809
Nicosia
9,797
New York
9,802
Washington, DC
9,801
Jakarta
9,781
Oslo
9,819
Wellington, NZ
9,803
Frankfurt
9,810
Ottawa
9,806
Zurich
9,807
The TESA CLINOBEVEL 3 was calibrated with a local gravitational force of
9,807 m/s
2
.
The inclinations displayed are therefore correct only in this location where exactly the same
gravitational force is acting. In different places the displayed value must be corrected. If on the
TESA CLINOBEVEL 3 the correction of the local gravity is switched on, the inclination
measured will be corrected accordingly before the value is displayed.
The correction is calculated according the following formula:
OF F
Hide Disabled Functions
ON
Radio