46
Press the [ENT] key to accept the
PRESS to 900hPa.
Pressing the [ENT] key returns
the instrument to mode A.
• The valid range of Pressure input is from 600 to 1120hPa. (420 - 840mmHg)
• When “Atmospheric Correction” in “Initial Setting 1” has been set to “1. AUTO” or “4. NIL”,
“ ” is displayed to the left of the pressure value on the correction menu screen.
When “ ” is on the screen, the pressure cannot be changed.
If “Atmospheric Correction” in “Initial Setting 1” has been set to “3.ppm INPUT”,
no pressure is displayed on the correction menu screen.
• Once set, the pressure is displayed at the center of the top of the measurement screen.
• The factory initial of pressure is “1. AUTO”.
• Once set, the pressure remains in memory even after the power is turned off.
• Pressure correction is based on 1013 hectopascals (hPa).
• If this instrument is used without correcting the pressure, a distance error per 100m is
about -0.3mm per -10hPa as a pressure difference from 1013hPa.
(For more accurate values, see “13.4 Error when no Atmospheric Correction is made”.)
7.4 Changing the ppm value
The ppm value can be changed only when “Atmospheric Correction” has been set to
“ppm INPUT” in “Initial Setting 1”. “TEMP” and “PRESS” are not displayed.
Example: Setting the ppm value to 31 ppm
Press [F4] [CORR] in mode B.
(If the instrument is in mode A, press [F5] [MODE]
to enter mode B.)
SELECT
CORRECTION
1. PRISM CONST * 0mm
2. SHEET CONST * 0mm
3.TEMP : +15°C
4. PRESS : 0900hPa
5. ppm * 0ppm
SELECT
CORRECTION
1. PRISM CONST * 0mm
2. SHEET CONST * 0mm
3.TEMP * 0mm
4. PRESS * 0mm
5. ppm : +12ppm
H.angle
H.dst.
V.dst.
MEAS TARGET 0 SET DISP MODE
MODE A 15°C S 0
92° 30’ 20”
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