How to use Leica DISTO™ E7300 Switch On and Off The red Dist on key displayed here switches on the instrument and the laser in a single press. Pressing the Clear off button for 2 seconds switches the instrument off. Also the instrument switches off automatically after 3 minutes of inactivity. Basic operations Other Operations on the device Beep on/off – Press & keys simultaneously for 2 seconds. Illumination on/off – Press seconds. & keys simultaneously for 2 Keypad lock on/off – Press & keys simultaneously for 2 seconds to lock the keypad. To unlock, press within 2 seconds after switching on the device or the device switches off on its own. Adjusting measuring reference This option is designed for the convenience, need and choice. You can either measure the distance from the front of the device or from the back of the device. Although the default reference setting is from the rear of the instrument. In Disto E7300, key is provided on the device to switch the measurement reference point. Memory The device stores last 10 results by default. To view the results press the thrice and navigate through last 10 readings with help of & keys. To delete the memory record press & the together for 2 seconds and the device is ready to record next 10 results. Changing Units For your convenience Leica Disto E7300 is provided with multiple units of measurement. You can change them from meter to feet to inches as per the requirement. By pressing the & keys simultaneously & continuously for 2 seconds you can navigate through different units of measurements. They change in this order. 1. meter upto three decimal places 2. meter upto four decimal places 3. meter upto two decimal places 4. feet upto two decimal places 5. feet and inches 6. inches upto two decimal places 7. only inches Basic Applications Straight line single distance measurement Basic usage is quite simple. Beam and aim the laser on the selected target with the key. Pressing the again records the measurement on device display. * For measurements, where there is nothing obvious at the other end for the laser to reflect back, it is recommended that you use Leica branded Target plate. Permanent / Minimum-Maximum measurement This function enables determining the minimum or maximum distance from a specific measuring point, e.g. the determination of room diagonals (maximum value) or horizontal distance (minimum value). To activate permanent measuring, aim the laser at your desired location and press the key for 2 seconds. This will activate the continuous laser and the display would show the min and max values on the screen. Focus the laser on to the wall corner (for maximum measurement) or to the horizontal side (for minimum measurement) at 0° with a swaying movement as shown in the picture. To stop permanent/minimum-maximum measuring press key once. Add/ Subtract function Add / Subtract are two basic functions in E7300. The keys are displayed on the device for this application. With the key, the next measurement you take is added to the previous measurement. And with the key, the next measurement is subtracted from the previous one. Area Measurement Area measurement is a basic function provided in all Leica Disto devices. This helps you calculate the area of wall or surface just by measuring its sides from the same reference point. For measuring the area of a surface, press the Function key once and you reach the area application which appears as on the display screen. Beam the laser pressing across to the end of the surface to take the 1st reading. Then focusing from the same reference point take the 2nd reading by measuring the adjacent wall length. Once this process is completed the device automatically calculates the area for you. * Adding and subtracting areas You can measure two separate areas and add or subtract them from each other with the help of or keys. Volume Measurement Same way as in the area measurement, press the Function key twice and to reach the volume application which is displayed on the screen as . Measure the three adjacent lengths (l x b x h) using . The only thing that needs to be kept in mind is that the all measurement needs to be taken from the same reference point. Once this process is completed the device automatically calculates the volume on the display. Advance Applications 2 point Indirect Height measurement – This function comes in handy when you do not have direct access to the building for straight line measurements. This function is used to measure the height of an object or a building just by focusing on 2 points (the distance from the object/building & highest point of the object). To do so, press the Function key four times and reach the application on the display. Then from the same reference point measure a. & b. How to measure a. & b. a. Shoot the laser with the key to the top or the highest point of the object and press the key again to record that measurement. b. Same way measure the horizontal distance from the building at 0°. The device automatically calculates the height or the length of the building. 3 point Indirect Height measurement – This function comes in handy when you do not have direct access to the building for straight line measurements. This function is extremely useful in measuring the height of an object or a building when you are measuring from a height or from above the ground. With this application you can determine the vertical height of a building by recording 3 points (highest point of the building, the distance from the object/building & the lowest point of the building). To do so, press the Function key five times and reach the application on the display. Then from the same reference point measure a., b. & c. How to measure a., b. & c. a. Shoot the laser with the key to the top or the highest point of the object and press the key again to measure that point. b. Same way and from the same reference point measure the horizontal distance from the building at 0°. (perpendicular from where you are standing) c. Lastly aim the laser to the lowest point of the building to measure that distance. With all 3 calculations the device automatically calculates the height or the length of the building.