User manual PENTAX DCF WP 10X42

[. . . ] is a sole proprietor of the PTL software. The PTL software and publication or parts thereof, may not be reproduced in any form, by any method, for any purpose. makes no warranty, expressed or implied, including but not limited to any implied warranties or merchantability or fitness for a particular purpose, regarding these materials and makes such materials available. PRECAUTIONS REGARDING SAFETY Safety precautions (Must be followed) The following items are intended to prevent possible injury to the user or other people and/or damage to the instrument before it occurs. These safety precautions are important to the safe operation of this product and should be observed at all times. Distinctive displays The following displays are used to distinguish precautions by the degree of injury or damage that may result if the precaution is ignored. WARNING Items indicated by this display are precautions which if ignored would result in serious injury. CAUTION Items indicated by this display are precautions which if ignored may result in injury or material. [. . . ] · Pressing [MEAS] one time selects "Second MEAS setting" and twice selects "QUIT" . And then, Normal or Long measurement is selected by pressing F3 or F5. 39 1 2 3 4 There is a possibility that correct distance measurement may be impossible by dispersion or reduction of laser beam when the laser beam comes into the target from diagonal angle. There is a possibility that the instrument cannot calculate correctly when receiving reflected laser beam from forth and back directions in case of measuring the target on the road. There is a possibility that synthesized values are calculated and the distance may become longer or shorter than the actual one when the operator measures the target of slope or sphere or rugged shape. There is a possibility that the instrument cannot calculate correctly collecting the reflected laser beam from a man or a car that comes and goes in front of the target. [Distance measurement by reflector sheet mode] Position the Reflector sheet whose reflecting surface faces the aiming line to be approx. right angle when the distance is measured by it. 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. · Reflector sheet mode and prism mode: It is sometimes possible to measure without reflector sheet or 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. If the automatic distance signal: [MEAS SIGNAL] in "Initial Setting 2" has been set to VALUE, a two-digit number representing the AIM value appears as soon as measurement starts (The AIM value varies depending on the distance and atmospheric conditions. ) The minimum distance unit : [MEAN. MIN DISP] COARSE or FINE can be selected by the initial setting 2. · · · 41 Example:"TRACK CONT" at second MEAS (Factory default setting) Collimate the telescope at a Target MODE A and press [F1] [MEAS] twice in succession H. angle to start measuring the distance, H. dst. upon reception of a reflected light from the V. dst. CONT target, the instrument beeps and displays MEAS TARGET the _ mark to start the TRACK distance measurement. · · 15°C S0 92° 30' 20" ((( ))) 0 SET DISP MODE · · If the instrument is in mode B, press [F5] [MODE] to switch to mode A and press [F1] [MEAS ] twice. Pressing [F1] [MEAS] twice after collimating the telescope at the Target starts Continuous distance measurement at fast speed with the "MEAS" text blinking. It remains blinking during the measurement. If you press the [F1] [MEAS] again, Distance measurement is completed and the "MEAS" text stops blinking. 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 fast distance measurement stops it. 6. 3 Quick mode The Quick Mode is to shorten the measuring time using prism or reflector sheet. · The Quick Mode is effective to measure the distance up to 500M using prism or reflector sheet. · After selecting Quick Mode from the Quick Mode setting screen, the distance measurement MODE A 15°C S0 is done in Quick Mode. [. . . ] · Calculation formula when atmospheric refraction and earth curvature correction parameter is set to "ON": Corrected horizontal distance (H) H = S (Cos + Sin · K-2 · S · Cos ) 2Re Corrected vertical distance (V) V = S (Sin + Cos · 1-K · S · Cos ) 2Re · Calculation formula when atmospheric refraction and earth curvature correction parameter is set to "OFF": Horizontal distance H'= S · Cos Vertical distance V'= S · Sin 73 S: Slope distance : Vertical angle from horizontal K: Atmospheric refraction coefficient (0. 14 or 0. 2) Re: Diameter of earth (6, 370 km) 13. 6 Distance range Generally speaking, the maximum range which can be measured varies considerably depending on the atmospheric conditions. For this reason, the specifications illustrate the values for both good and normal weather conditions. It is extremely difficult to judge when weather conditions are "Good" and when they are "Normal" With this instrument, the conditions noted below are used to differentiate . between the two situations, (good weather conditions for surveying are different from normal weather conditions, and in surveying situations, cloudy skies are considered more favorable than sunny skies. ) Weather conditions for measurement ranges are based on the following standard values: Normal: Visibility of approximately 20 km, with slight shimmer and moderate wind. [. . . ]