③
Input refraction modulus. E.g.:
20
+
[ENT]
.2
input 0.2, and press [ENT],
moving the cursor to Temp item.
※
1)
,※
2)
Input 0.
【
Atmosphere Data
】
RetrCorr
:
0 0
Temp
:
20
℃
a
tmos PPM
:
0 PPM
Pressure
:
1013.2 hP
A
BACK PPM=0 SET
④
As the settings are finished,
ress [F4] to store and return to
[F3](SET) to save
settings and return to measure
.
[F4]
[F3]
p
the previous menu, here you have
to press
function
【
EDM Settings
】
EDM Mode
:
Tracking
Prism
:
-30.0mm
ATMOS GRID SET
↓
※
1)The inputting scope of refraction modulus: 0.00(SHUT)
.7 INPUTING M
~
0.20
※
2)The way of input please refer to “2
ODE”.
Atmospheric Correction:
Light’s travelling speed in the air is no
ge of the
tem
ere, the instr
ally modify observing result
onc
ue is set.
ill still b
or atmospheric
ing unit
:
m
(
hPa
)
t a constant, it varies with the chan
perature and pressure of atmo
e the atmospheric correction val
The atmospheric correction
The calculating formula f
eter)
sph
ument can automatic
value w
e kept even if the machine is shut off.
correction is as follows: (Calculat
PPM = 273.8 - 0.2900
×
Pressure Value
1 + 0.00366 × Temperature value
(℃)
If the pressure unit adopted is mmHg : make conversion with 1hPa = 0.75mmHg.
If regardless of atmospheric correction, please set PPM value as 0
O ERATIONAL STEPS
OPERATION
DISPLAY
The standard atmospheric condition of STS Total Station instrument (e.g. the atmospheric
condition under which the atmospheric correction value of the instrument is zero )
:
Pressure
:
1013 hPa
Temperature:
:
20
℃
P
①
In the screen
press [
atm
EDM Mode
:
Tracking
【
EDM Settings
】
m
of EDM setting ,
Prism
:
30.0m
F1] (Atmos) to enter
ospheric correction function.
ATMOS GRID SET
↓
27
Содержание STS-750
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