3.7 Target sighting [Auto focus] The Auto focus mechanism is very precise but will not function under every condition. There is a slight possibility of focusing failure owing to brightness, contrast, the shape and size of the target. In such a case, press the AF button and focus on the target by operating the Power focus key or the AF ring. No contrast like a white wall Bright back light Obstacle in front of a target A wall composed of single horizontal

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 H.angle H.dst. V.dst. SHOT ( ( ( ) ) ) MEAS TARGET 0 SET DISP MODE MODE A 15°C S 0 92° 30’ 20” The R-300X series has two distance measurement modes of primary MEAS and second MEAS. Pressi

Confirm the alignment (horizontal and vertical ) before measuring when performing accurate work like stake out when using the Laser pointer function. Also refer to 10-10. The EDM beam axis. • Please do not look at the laser source of beam directly. 3. PREPARATION FOR SURVEYING 3.1 Centering and leveling of the instrument [Setting up the instrument and the tripod] 2 1 Adjust the tripod legs so that a height suitable for observation is obtained when the instrument is set on the tripod. Hang the pl

The procedure to adjust the reticle illumination is the same way as 4.3. • Pressing the Illumination key views the F3-RETICLE, F4-LCD and F5-ILLU. 5. ANGLE MEASUREMENT 5.1 Measuring an angle Aim at the first target, then press [F3] [0 SET] twice in succession to reset the horizontal angle to 0. H.angle H.dst. V.dst. 0° 00’ 00” MEAS TARGET 0 SET DISP MODE MODE A 15°C S 0 Aim at the second target, then read the horizontal angle. H.angle H.dst. V.dst. 60° 30’ 20” MEAS TARGET 0 SET DISP MODE MODE A

This mark can be used to check the charge status of the battery. 2 1 Plenty of charge left 1 2 2 2 1 Plenty of charge left 1 2 2 1.4 Attaching and charging the battery [Removing the battery] Turn the lock lever anticlockwise and remove the battery. Lift up the battery pack and remove it from the instrument. 2 1 • Be absolutely sure to turn the power off when removing the battery as removing the battery while the power is still on may result in damage to the instrument. 1 3 Get the spare battery

• If water should happen to splash on the instrument or the battery, wipe it off immediately and allow it to dry in a dry location. Do not put the instrument in the case until it is completely dry as this may result in damage to the instrument. • Turn off the power when removing the battery from the instrument as removing the battery while the power is still on may result in damage to the instrument. • The battery mark displayed on the instrument is only an estimate of remaining battery power an

35 PENTAX R-300 (p20-52) 10/30/02 11:08 AM Page 36 5 ANGLE MEASUREMENT 5 ANGLE MEASUREMENT 5-1 Measuring an Angle Aim at the first target, then press [F3] [0 SET] twice in succession to reset the horizontal angle to 0. Aim at the second target, then read the horizontal angle. Pressing [F4] [DISP] displays the vertical angle. H. angle 00"00'0° H. dst. V. dst. H. angle 20"30'60° H. dst. V. dst. MODE A 15 C S0 H. angle 60° 20"30' V. angle 87° 40"05' S. dst. MEAS TARGET 0 SET DISP MODE . The [0 SET]

2. Selection of Prism Constant : [PRISM CONST] Select whether the Prism Constant to be input is set to 0 mm, - 30mm or to an arbitrary value to be entered from the keyboard. 3. Selection of Reflector sheet Constant : [SHEET CONST] Select whether the target constant to be input is set to 0 mm, or to an arbitrary value to be entered from the keyboard. 4. Selection for Refraction & Curvature Corrections : [CRV/REF CORR] Select whether the correction factor to be input for both differences (Refracti

Unsuitable Condition ERROR!! EDM ERROR 04 -05, 34-39, 50-53 ERROR!! ETH ERROR 7076 ERROR!! ETH ERROR 19 ERROR S DATA of EDM ERROR P DATA of EDM ERROR ETH DATA Meaning Displayed when the instrument is tilted beyond the vertical compensation range (±3') in case 1 axis or 2 axis automatic compensation is selected. This message may be temporarily displayed if the instrument is turned too fast. The input data exceeds the allowable range. The distance is measured by Prism at Reflector sheet mode, and

Example: Setting the temperature to +22°C Press [F4] [CORR] in mode B. (If the instrument is in mode A, press [F5] [MODE] to enter mode B.) Press [F4] [h] to move the cursor to “3.TEMP” and press the [F5] [SELECT] to enable the temperature to be changed. Clear the exiting values by pressing [CLEAR] key. Input 22 by pressing the numeric keys. CORRECTION 1.PRISM CONST 0mm 2.SHEET CONST 0mm 3.TEMP : +15°C 4.PRESS : 1013hPa 5.ppm 0ppm 1.PRISM CONST 0mm 2.SHEET CONST 0mm 3.TEMP : +15°C 4.PRESS : 1013