Distance Measurement - Pentax R-422VN Instruction Manual

right angle, there is a possibility that correct distance measurement may be impossible by
dispersion or reduction of laser beam.
[Applied measurement range by each target mode]
• When a wrong target mode is selected, a correct distance cannot be measured.
Please select a correct target mode and measure.
• It is sometimes possible to measure without prism under special conditions like in the close
distance, targeting on a wall surface. However, there is a possibility including some errors
in this case, so be sure to select the reflectorless mode.
• The target constant should be correctly selected and confirmed in case that the reflector
sheet is used at the prism mode and the prism is used at the reflector sheet mode.

6.2 Distance measurement

The R-400V series has two distance measurement modes of primary MEAS and second
MEAS. Pressing the [F1] [MEAS] one time goes to primary MEAS and twice goes to second
MEAS.
You can freely select and allocate your desired measurement mode in primary MEAS and
second MEAS by the initial setting 2. The "MEASURE SHOT" is set at primary MEAS and
"TRACK CONT" is set at second MEAS as a factory default setting.
• MEASURE SHOT means the distance measurement by the shot mode.
• MEASURE CONT means the distance measurement by the continuous mode.
• TRACK SHOT means the fast distance measurement by the shot mode.
• TRACK CONT means the fast distance measurement by the continuous mode.
Confirm the target constant before beginning the distance measurement.
Example: "MEASURE SHOT"at primary MEAS (Factory default setting)
Collimate the telescope at a target and press the [F1]
[MEAS] once to start measuring the distance. Once
distance measurement has been started, the distance
measurement mark remains displayed. Upon
reception of a reflected light from the target, the
instrument beeps and displays the mark to start the
shot measurement automatically.
• If the instrument is in MODE B, press the [F5] [MODE] to switch to MODE A and press
[F1] [MEAS].
• Pressing the [F1] [MEAS] after collimating the telescope at the prism starts shot distance
measurement with the "MEAS" text blinking. Distance measurement is completed and the
"MEAS" text stops blinking the moment the distance measured by shot measurement is
displayed. During continuous measurement, the "MEAS" text keeps on blinking. Pressing
the [F1] [MEAS] again terminates both distance measurement and blinking of the "MEAS"
text.
• Pressing [F4] [DISP] cycles through the sets of display items:"H.angle/H.dst./V.dst.",
"H.angle/V.angle/S.dst.", and "H.angle/V.angle/H.dst./S.dst./V.dst."
• Pressing the [ESC] or [F2] [TARGET] or [F5] [MODE] during distance measurement
stops it.
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