STONEX R2 User Manual

STONEX R2
30
④Input pressure
e.g.: input 1020 hPa, and press [ENT],
the atmospheric correction value will
be calculated by the procedure, the
cursor will move to the refraction
modulus. ‴1)，‴2)，‴3)，‴4)
Input 1020
+
[ENT]
【Atmosphere Data】
Retr.Corr： 0.14
Temp： 26‵
Pressure： 1020.0 hPa
Atmos PPM： 3 PPM
BACK PPM=0 SET
⑤After finishing setting, press [F4] to
save and return to the previous menu,
here press [F3] (SET) again to save the
setting and return to measure function.
[F4]
[F3]
【EDM Settings】
EDM Mode： Tracking
Prism： -30.0mm
ATMOS GRID SET ↓
‴1The inputting scope:Temperature:-40～+60‵(step length 0.1‵) or -40～140℉(step length 0.1℉)
Air pressure:420 ～ 799.5 ㎜ Hg(step length 0.1 ㎜ Hg) or 560 ～ 1066 hPa(step length 0.1hpa)
16.5 ～ 31.5 inchHg(step length 0.1 inchHg)
‴2)Please refer to “2.7INPUTTING MODE” for inputting instruction.
‴3)The atmosphere correction value will be calculated by the instrument according to the inputted
temperature and pressure value.
‴4)Press [F3](PPM=0) to set Atmos correction as zero.
3.2.5 Grid Factor
In coordinate calculation, use horizontal distance to multiply scale factor.
Calculation Formula
1. HEIGHT FACTOR=
ELEVR
R

R ： The average radius of the earth
ELEV：The height of the mean sea level
2. SCALE FACTOR
Scale factor: the scale on the measurement station
GRID FACTOR
Grid factor = height factor³scale factor
Distance Calculation
1. GRID DISTANCE
HDg = HD ³ Grid factor
HDg：Grid distance
HD ：Ground distance
2. GROUND DISTANCE

STONEX R2 Specifications

General

Brand	STONEX
Model	R2
Category	Measuring Instruments
Language	English