Elma Laser 7 Zoom

Safety Precautions

Read the safety precautions and user manual carefully before operating the machine.

• Read all instructions and safety precautions in this manual before use. Incorrect use without following this manual may cause damage to the unit, affect measurement results, or cause personal injury to the user or third party.
• The instrument must not be disassembled or repaired in any way. Any illegal modifications or performance changes to the laser emitter are prohibited. Please keep it away from children and do not allow unauthorized persons to use it.
• It is strictly forbidden to shoot at eyes or other parts of the body with the laser. It is not allowed to use the laser to shoot at the surface of highly reflective objects.
• Due to electromagnetic radiation interference with other equipment and appliances, do not use the meter in airplanes or near medical equipment, and do not use it in flammable or explosive environments.
• Discarded measuring equipment should not be treated as household waste; please handle it in accordance with applicable laws and regulations.
• For any quality problems or questions about the meter, please contact local distributors or the manufacturer in time; we are ready to offer solutions for you.

LCD Display

The LCD display shows various information:

• Screen Lock: Indicates screen lock status.
• Laser Emission Indicator: Shows when the laser is emitted.
• Reference Point: Indicates the reference point for measurements.
• Data Storage: Shows data storage status.
• Laser On: Indicates the laser is active.
• Battery Level: Displays the remaining battery power.
• Angle: Shows the measured angle.
• Historical Data: Displays the last few measurements.
• Current Data: Shows the most recent measurement.
• Main Interface (PIC1): The primary display screen.
• Menu Interface (PIC2): Access to various settings and functions.
• Parameters: Settings and options for measurements.

Interface for Mode Selection (PIC3)

This interface allows users to select different measurement modes.

• Application Scenario: Visual representation of the measurement context.
• Modes: Icons representing different measurement modes.
• Current Page: Indicates the current screen or page.

Buttons

The instrument features several buttons for operation:

• Power On/Measurement/Confirm: Used to turn the device on, initiate measurements, and confirm selections.
• Mode Selection/Left Button: Navigates through different modes or acts as a left button.
• Camera Aid Measurement: Function for measurements using the camera.
• Add/Up: Increases values or navigates upwards.
• Menu/Right Button/Screen Lock: Accesses the menu, acts as a right button, or locks the screen.
• Subtract/Down: Decreases values or navigates downwards.
• Power Off/Clear: Turns the device off or clears current data.

Lithium-ion Charging

The instrument uses a built-in 3.7V 2000mAh lithium battery that is not removable. It has an integrated charging circuit with clear undervoltage and charging indicators.

• When the battery level is low, the battery symbol will be empty and blinking. Connect the USB cable to charge. A rolling battery symbol will appear on the screen, and it will stop rolling when the battery is fully charged.
• Charging is done via Type-C USB.

Battery Maintenance

If the instrument is not used for a long time, charge it fully and then charge it every six months to prevent damage due to battery discharge.

Power On/Off

• Power On: In the off state, press and hold the [Power] button to enter measurement mode.
• Power Off: In the on state, press and hold the [Power Off] button to turn off the instrument. If no operation is performed within 300 seconds, the instrument will automatically shut down (this is a default value and can be adjusted in the menu settings).

Single Measurement

The single measurement function works as follows:

1. In measurement mode, press the [Laser] button to emit the laser.
2. Aim at the object and press the [Measure] button to measure the distance. The measured value will be displayed on the main screen. Historical data for the last three measurements will be shown in the secondary display area. This can be cleared by pressing the [Clear] button.

Continuous Measurement

This mode helps users find a specific distance point without repeatedly pressing the button to obtain the desired data.

• Entering Continuous Measurement: In measurement mode, press and hold the [Laser] button. The screen will display the maximum value (MAX) and the minimum value (MIN), as well as the difference between them. The current measured value is shown on the main display.
• Exiting Continuous Measurement: Briefly press the [Clear] or [Power Off] button. After exiting, the measurement results are automatically saved to the storage medium for easy access at any time.

Mode Selection

Press the [Fun] button to access the mode selection screen. The functions work as follows:

• Press the [Fun] button to switch between modes.
• Press the [Laser] button to enter the selected mode.
• Press the [Clear] button to return to the measurement interface.

Area Measurement

Select the area measurement mode. The screen will display instructions for the following operations:

• Press the [Add/Up] button to measure the length of the rectangle.
• Press the [Subtract/Down] button to measure the width of the rectangle.

Once the measurement is complete, the instrument will automatically calculate the area. If the user believes the measurement data may be incorrect, they can briefly press the [Clear] button to return to the last measurement and re-measure.

Volume Measurement

Select the volume measurement mode. The screen will display instructions for the following operations:

• Press the [Add/Up] button to measure one side (length) of the cube.
• Press the [Subtract/Down] button to measure one side (width) of the cube.
• Press the [Laser] button to measure one side (height) of the cube.

Measurements should be taken in the order of length, width, and height. After the third measurement, the instrument will automatically calculate the volume. If the user believes the measurement data may be incorrect, they can briefly press the [Clear] button to return to the last measurement and re-measure.

Wall Area Measurement

Select the wall area measurement mode. The screen will display instructions for the following operations:

• Press the [Add/Up] button to measure the height of the wall.
• Press the [Subtract/Down] button to measure the width of wall S1.

The instrument will automatically calculate the wall area = height x width 1. Press the [Laser] button to measure the width of wall S2. The instrument will automatically calculate the total wall area. Total wall area = height x (width 1 + width 2). By analogy, press the [Add/Up] button to measure the width of wall n. Total wall area = height x (width 1 + width 2 + ... + width n).

If the user believes the measurement data may be incorrect, they can briefly press the [Clear] button to return to the last measurement and measure again.

Camera Area Measurement

Select the camera area measurement mode. The user measures the distance to the target and adjusts the length (a) and width (b) through the camera to match the target's length and width boundaries. The instrument will automatically calculate the target's area.

1. Aim at the measurement object so that the entire object is visible in the camera's view.
2. Briefly press the [Laser] button to freeze the frame. Four arrows will appear on the screen. Adjust the arrow positions by pressing the [Add/Up] or [Subtract/Down] buttons to align them with the target boundaries.
3. Briefly press the [Menu] button to switch arrows and continue adjusting their positions to match the target boundaries.
4. When all arrows align with the target boundaries, the target area will be automatically calculated and displayed.
5. Briefly press the [Laser] or [Clear] button to start the next measurement.

The display shows Length, Width, and Area.

Pythagoras Measurement

Note: If ERR 5 is displayed on the screen during triangle measurement, it indicates that the measurement data does not comply with the triangle rule (e.g., the hypotenuse in a right triangle is shorter than a leg). The user must measure again.

• Measuring Height and Horizontal Distance of a Right Triangle: Select the mode. Press the [Laser] button to measure the hypotenuse and angle. The instrument will then calculate the height (C) and horizontal distance (B) based on the hypotenuse length and dip angle.
• Determining Height in a Right Triangle: Select the mode. Press the [Add/Up] button to measure hypotenuse A. Press the [Subtract/Down] button to measure leg B. The instrument will automatically calculate height C after the second measurement.
• Determining Hypotenuse in a Right Triangle: Select the mode. Press the [Subtract/Down] button to measure leg B. Press the [Laser] button to measure leg C. The instrument will automatically calculate the hypotenuse A after the measurement.
• Determining Base of a Triangle: Select the mode. Press the [Add/Up] button to measure side C. Press the [Subtract/Down] button to measure height B. Press the [Laser] button to measure side A. The instrument will automatically calculate the third side D after the measurement.
• Triangle for Extra Measurement of Line Height: Select the mode. Press the [Add/Up] button to measure side A. Press the [Subtract/Down] button to measure the auxiliary line length B. Press the [Laser] button to measure the base C. The instrument will automatically calculate the auxiliary line height D after the measurement.

Triangle Area Measurement

Select the triangle area measurement mode. The screen will display instructions for the following operations:

• Press the [Add/Up] button to measure the first side A of the triangle.
• Press the [Subtract/Down] button to measure the second side B of the triangle.
• Press the [Laser] button to measure the third side C of the triangle.

The instrument will automatically calculate the triangle's area S after the measurement.

Slope Measurement

Select the slope measurement mode. The screen will display instructions for the following operations:

• Press the [Add/Up] button to measure the finest side A.
• Press the [Subtract/Down] button to measure the second side B.

The instrument will automatically calculate the height for slope C and the length for slope C after the measurement.

Height Tracking

Select the height tracking mode. The screen will display instructions for the following operations:

• Press the [Add/Up] button to measure side B. The screen will display the angle and length of B. Briefly press the [Add/Up] button again, and the instrument will start continuous measurement and measure the other side A. The screen will display the angle of A and the absolute height difference between A-B in real-time.

Measurement of Distance Between Two Points in Space (Azimuth Measurement)

Select the azimuth measurement mode. The instrument will enter calibration mode, and the screen will display "Waiting...".

• Place the instrument horizontally and wait for about 3 seconds for calibration (if vibrations occur during calibration, the instrument may not be able to calibrate). The user can briefly press the [Clear] button to exit calibration. It is recommended to perform a calibration before starting the measurement to improve data accuracy.
• Once calibration is complete, follow the instructions:
• Press the [Add/Up] button to measure the distance from the instrument to point A.
• Press the [Subtract/Down] button to measure the distance from the instrument to point B.

The instrument will automatically calculate the distance C between A and B.

Staking-out Measurement

Select the staking-out mode. The screen will display instructions for the following operations:

1. After entering staking-out mode, adjust the size of 'a' using the adjustment area buttons (press and hold the [Add/Up] button to increase the adjustment range). When the adjustment is complete, press the [Measure] button to set the staking-out value 'a'.
2. After setting 'a', adjust the size of 'b' using the adjustment area buttons (press and hold the [Subtract/Down] button, then press the [Add/Up] button to increase the adjustment range). When the adjustment is complete, press the [Measure] button to set the staking-out value 'b', and the instrument will begin staking out.

Staking-out Mark:

• If you have not reached the setup location, move the instrument backward.
• Move the instrument forward beyond the setup location.
• Reach the staking point.

Exit Operation: Press the [Clear] button to leave staking-out mode.

Function Description (Staking-out)

This section describes the functionality with visual aids.

• Starting Point: The initial reference point.
• Target 1, Target 2, Target 3: Subsequent targets for measurement.
• a, b: User-defined distances. 'a' and 'b' can be equal or unequal.
• The diagrams illustrate measurements and adjustments, showing how the instrument's reported distance relates to the actual movement required to reach the next target. For example, a reported distance of 2.400m might indicate a movement of 0.6m to reach Target 2. Similarly, a reported distance of 3.600m might indicate a movement of 0.6m from Target 2 to reach Target 3.

Level Bubble Measurement

Select the level bubble mode. The screen will display instructions for the following operations.

The universal electronic level bubble simulates the actual level bubble function and measures the tilt angle relative to the horizontal and vertical positions.

The display shows Vertical angle, Horizontal angle, and a value of 0.000m.

Addition for Distance

Select the addition mode and follow the instructions:

• Step 1: Press the [Laser] button to turn on the laser, then press the [Add/Up] button. Measurement data will be displayed on the main screen.
• Step 2: Press the [Add/Up] button again; the instrument enters addition mode, and [+] will be displayed on the lower left side of the screen.
• Step 3: Repeat Step 1. After the second measurement, the instrument will automatically sum the values. The auxiliary display shows the first and second measurement data, and the main display shows the sum of the two measurements.
• Step 4: Repeat Step 1. After each subsequent measurement, the instrument continues to sum. The auxiliary display shows the latest summed data and the latest measurement data, while the main display shows the sum of the two data.

Subtraction of Distance

Select the subtraction mode and follow the instructions:

• Step 1: Press the [Laser] button to turn on the laser, then press the [Subtract/Down] button. Measurement data will be displayed on the main screen.
• Step 2: Press the [Subtract/Down] button; the instrument enters subtraction mode, and [-] will be displayed on the lower left side of the screen.
• Step 3: Repeat Step 1. After the second measurement, the instrument will automatically subtract. The auxiliary display shows the first and second measurement data, and the main display shows the difference between the two measured values.
• Step 4: Repeat Step 1. After each subsequent measurement, the instrument continues to subtract. The auxiliary display shows the latest subtraction data and the latest measurement data, while the main display shows the difference between the two data.

Note: In the addition and subtraction process, the user can briefly press the [Clear] button to cancel the last value for addition and subtraction. Briefly press the [Clear] button multiple times to exit the addition and subtraction mode.

Addition and Subtraction of Area

• Step 1: Measure the first area (see area measurement), as shown in Figure 4.
• Step 2: Briefly press the [Clear] button to clear the data on the screen, and [+] will appear in the main display area.
• Step 3: Repeat Step 1 to measure the second area, and the result is shown in Figure 5.
• Step 4: Briefly press the [Add/Up] button, and the instrument will automatically sum the two areas. The auxiliary display area will show the values of the first and second areas, and the main display will show the sum of the two areas, as shown in Figure 6.

Multiple Addition: After completing Step 3, repeat Steps 2 and 3 to continue adding the next area. Finally, perform Step 4, and the instrument will sum all measured areas.

Note: The procedure for subtraction is similar to that for addition and is not explained here.

Addition and Subtraction of Volume

• Step 1: Measure the first volume (see volume measurement), as shown in Figure 7.
• Step 2: Briefly press the [Clear] button to clear the data on the screen, and [+] will appear in the main display area.
• Step 3: Repeat Step 1 to measure the second volume, and the result is shown in Figure 8.
• Step 4: Briefly press the [Add/Up] button, and the instrument will automatically sum the two volumes. The auxiliary display will show the first and second volume values, and the main display will show the sum of the two volumes, as shown in Figure 9.

Multiple Addition: After completing Step 3, repeat Steps 2 and 3 to continue adding the next volume. Finally, perform Step 4, and the instrument will sum all measured volumes.

Note: The procedure for subtraction is similar to that for addition and is not explained here.

Save Records

After the measurement is completed, the measurement results are automatically saved to the storage medium. The maximum memory is 100 units. See Menu Settings to view records.

Camera Extra Measurement

In strong sunlight, the laser cannot be identified by the naked eye. The user can measure the distance through the extra measurement function. The operations are as follows:

1. Start extra measurement: Press the [Fun] button in measurement mode.
2. Distance for measurement: Aim at the center circle on the screen of the measurement object and perform a single measurement. The measurement results are displayed at the bottom of the screen.
3. Zoom: Press the [Add/Up] or [Subtract/Down] button to switch between 1X/2X/4X. There are three zoom levels.
4. Exit auxiliary measurement: Press the [Clear] or [Power Off] button to exit. If there is measurement data, press the [Clear] button multiple times until the data is cleared, then exit.

The display shows Battery Level, Zoom Ratio, Target for Auxiliary Point, and Measurement Data.

Automatic Screen Rotation and Lock

• Automatic Screen Rotation: The instrument can automatically rotate the screen content according to the current orientation. It supports 360° rotation and displays in 4 directions.
• Screen Lock: Press and hold the [Menu] button to lock/unlock the current screen orientation. When the screen is locked, a lock icon will be displayed.

Note: The electronic level bubble mode, azimuth mode, and camera area mode do not support screen rotation.

Menu Settings

• Using the Menu:
  1. Briefly press the [Menu] button to open the menu.
  2. Briefly press the [Add/Up] or [Subtract/Down] buttons to select an option.
  3. Briefly press the [Laser] button to go to the option settings.
  4. Briefly press the [Clear] button to return to the measurement interface.
• Setting Options:
  1. Briefly press the [Add/Up] or [Subtract/Down] buttons to select different setting parameters.
  2. Press the [Laser] button to confirm the current parameter.
  3. Press the [Clear] button to return to the menu.

Menu Options

10. Self-Calibration

The self-calibration function is mainly used to correct data. When a deviation occurs during measurement, this function can be used to correct the distance. The correction range is -0.009~0.009m. For example, if the user considers the value to be 2mm larger, it can be adjusted to -0.002m to compensate for 2mm. Conversely, if it is 2mm smaller, it is adjusted to 0.002m.

Operation: Enter self-calibration, briefly press the [Subtract/Down] button to change the self-calibration value, briefly press the [Add/Up] button to save the changed value, and briefly press the [Menu] button to return to the menu option.

11. Record Display

The screen shows record number, measurement data (e.g., area, distance), and main value.

Functions:

• Briefly press the [Add/Up] or [Subtract/Down] buttons to select a record.
• Briefly press the [Fun] or [Menu] button to browse forward and backward or display the record.
• Briefly press the [Clear] button to return to the menu option. Briefly press the [Laser] button to enter deletion mode.

Delete Records

There are three options:

• 1) Delete a single record.
• 2) Delete all records.
• 3) Back to display records.

Functions: Briefly press the [Add/Up] or [Subtract/Down] buttons to select an action; briefly press the [Laser] button to perform the action; briefly press the [Clear] button to return to the menu option.

12. Factory Reset

The function is as follows:

• Briefly press the [Add/Up] or [Subtract/Down] buttons to select an operation.
• Briefly press the [Laser] button to perform the action. If 'Yes' is selected, the instrument will be reset to factory settings. If 'No' is selected, the system will return to the startup state.
• Briefly press the [Clear] button to return to the menu option.

13. Language Settings

The function is as follows:

• Briefly press the [Add/Up] or [Subtract/Down] buttons to select the function.
• Briefly press the [Laser] button to select the language.
• Briefly press the [Clear] button to return to the menu option.

The interface shows a dropdown menu for language selection, with 'Chinese' and 'English' as options.

USB Connection Function

• The instrument has a USB connection to a computer. The WINDOWS software LDM Studio is provided in the official website's software package, which is convenient for measurement functions controlled by the computer. Stored instrument records can be downloaded, printed, and exported to EXCEL spreadsheets. Download the software from the official website: www.elma.se.
• The instrument provides an open USB HID communication function for users who want to develop the instrument further. For the complete protocol, see the documentation in the package: USB-HID Command List SV vr.docx.

Installation and Usage Steps:

1. This software does not require installation. Open the LDMStudio folder in the package and double-click the LDMStudio.exe file to run the software.
2. After running the software, connect the instrument to the computer with a USB cable. If the connection is successful, "Connection OK" will be displayed on the lower left side of the screen.
3. Click the [Excel] or [Print] buttons to check the instrument's measurement data or clear data.
4. If records are stored in the instrument, click the [Export Records] button to export the records. After exporting, the user can click the [Export to Excel] button to generate an EXCEL document, or click the [Print] button to print reports.

Error Messages

When ERR x-information is displayed on the instrument, it indicates that the instrument may not be able to perform correct measurements. The following is a list of possible error messages and solutions:

Technical Specifications

Battery

* "d" indicates the actual distance.

** In harsh environments, for example: strong sunlight, excessive ambient temperature fluctuations, weak reflection effect of the object's surface, or low battery, measurement results may have large errors, so a reflective plate is needed.

Instrument Maintenance

• The meter should not be stored in environments with high temperatures and high humidity for extended periods. If not used frequently, place the meter in a dry bag and store it in a cool, dry place.
• Please keep the surface of the unit clean. Use a damp soft cloth to clean dust, but do not use corrosive liquids for maintenance. The laser window and focus lens can be maintained according to the maintenance procedures for optical equipment.

Packing List

Check that the accessories are complete according to the list below.

Elma Instruments A/S
Ryttermarken 2
DK-3520 Farum
T: +45 7022 1000
F: +45 7022 1001
info@elma.dk
www.elma.dk

Elma Instruments AS
Garver Ytteborgsvei 83
N-0977 Oslo
T: +47 22 10 42 70
F: +47 22 21 62 00
firma@elma-instruments.no
www.elma-instruments.no

Elma Instruments AB
Pepparvägen 27
S-123 56 Farsta
T: +46 (0)8-447 57 70
F: +46 (0)8-447 57 79
info@elma-instruments.se
www.elma-instruments.se