11-1
11 SETTING THE PRISM CONSTANT VALUE
11
SETTING THE PRISM CONSTANT VALUE
The prism constant value of Topcon is set to zero. When using prisms other than Topcon’s, it is
necessary to set the prism constant correction value of that specific prism.
Once you set the correction value for prism constant, it is retained after power is OFF.
•
Confirm the non-prism constant value is set at 0 when measuring target such as walls in Non-prism
mode.
Operating procedure
Operation
Display
1
Press the
{F4}
key to get the soft key page 2 in the
distance measurement mode or page 3 in the
coordinate measurement.
{F4}
2
Press the
{F3}
(S/A).
{F3}
3
Press the
{F1}
(PRISM) key.
{F1}
4
Input prism constant correction value. Press
{F4}
(ENT) to move to the next item.
PRISM: Prism Constant Correction Value
N_PSM: Non-prism Constant Correction Value
SHEET: Sheet Constant Correction Value
When all the values are set, previous screen is
restored.
Enter value
{F4}
*1)
Refer to Section 2.4 “How to Enter Alphanumeric Characters”.
Input range: –99.9mm to 99.9mm,0.1mm step.
HR: 120°30'40"
HD* 123.456 m
VD: 5.678 m
MEAS MODE NP/P P1
↓
OFSET S.O S/A P2
↓
PSM:0.0 PPM 0.0
NPM:0.0 SHT: 0.0
SIGNAL:[
IIIII
]
PRISM PPM T-P –––
PRISM
=
0.0 mm
N
_
PSM
:
0.0 mm
SHEET : 0.0 mm
––– ––– [CLR][ENT]
PRISM
:
14.0 mm
N
_
PSM
=
0.0 mm
SHEET : 0.0 mm
––– ––– [CLR][ENT]
PSM:14.0 PPM 0.0
NPM:0.0 SHT: 0.0
SIGNAL:[
IIIII
]
PRISM PPM T-P –––
