Hi-Target HTS-420R - Atmospheric Correction Parameters

Total Station Manual
- 28 -
Steps
Key
Display
○
1 After entering to the
interface of EDM Setting,
press [F1] (Atoms) to enter
the interface of Atomspheric
Data.
[F1]
[EDM Setting]
EDM Mode:
Reflector: Prism
P.C. : 30.0 mm
OK
Single
ATOMS Pointer
○
2 Interface displays the
current setting, using the
direction of↓ to move the
cursor to the setting item of
Refraction.
Press ←→to select the value
of refraction.Each time you
press ← or → ， the value of
refraction is switched.
↓
+
←→
[Atomspheric Data]
Temp. :
Press :
PPM :
Refraction
OK
20.0 ℃
1013 hPa
0.0 PPM
0.00
PPM=0
○3 After finished setting, press
[F4] (OK) to save settins and
back to previous menu.
If you want to cancel the
settings,press [ESC] to ignore
the changes
[F4]
[EDM Setting]
EDM Mode:
Reflector: Prism
P.C. : 30.0 mm
OK
Single
ATOMS Pointer
Atmospheric Correction：
When measuring distance, the measured value will be influenced by the
atmosphere.
In order to reduce the influence, a atmospheric correction parameter is needed.
Correction value associated with the pressure and temperature in air.Calculated
as follows：
If the air pressure unit is mmHg, Make a conversion according to the formula:
1hPa=0.75mm Hg
 Standard meteorological conditions (atmospheric correction value =0 )：