David White DWT-10 Instruction Manual

10, David White DWT-10 8 2. PREPARATION FOR MEASUREMENT 2.1 Mounting And Leveling Mount and level the instrument carefully to get the best performance. 1. Place the tripod over the ground datum point and tighten the legs. 2. Attach the instrument to the tripod and tighten snugly 3. Roughly level the instrument with t…

15, 13 4.2 Replacing Batteries 1. Push down on the hook to remove the metal battery door. 2. Install batteries as shown. 3. Slip the projection shown on the metal battery door into the slot shown and push down on the door until the hook locks the door in place. 4.3 Mounting Battery Compartment 1…

9, 7 1.2.3 Preferences continued Once all preferences have been input, press the “H/R” and “V%” at the same time. A long tone will be heard and the display will return to normal. …

6, 4 1.2.1 Display DISPLAY FUNCTION V Vertical angle symbol will be shown in place of the vertical reading until the telescope has been turned past the zero point of the horizontal axis. This sets the zero point. (See section 1.2.3, preference set up) HR H…

14, 12 3.6 Stadia Measurements 1. Distance measurement can be done using the stadia hairs of the reticle. 2. Read the length " l " of a level rod shown between the stadia hairs. 3. The distance to the target is 100 multiplied by " l ". The distance between point A and point B is L.…

11, 9 5. Centering the instrument using the optical plummet A) Adjust the eyepiece so the bull's-eye reticle comes into sharp focus. B) Adjust focus knob so ground target comes into sharp focus. C) Slightly loosen the tripod fastening screw and move the instrument until the ground targe…