8Calibration FunctionThis device includes a calibration function to ensure accuracy.1. When the device is powered off, hold the " OFFCLEAR " button and press the" READ " button to power on the device.2. Release the " READ " button until "CAL" and a number appears on thedisplay to enter calibration mode.3. Users can use the " + " button and the " " button to adjust errorvalue. The adjustment range is -9~9mm.For example, actual distance is 3.780m. If this device'smeasurement distance is 3.778m, this indicates 2mm less than theactual's. Enter the calibration mode and use the " + " button toadd 2mm. If this device's measurement distance is 3.783mm, this is3mm more than the actual's. Enter the calibration mode and use the" " button to reduce 3mm.4. After calibration, press the " READ " button to save the calibration result.Distance, Area, Volume, Pythagorean,Cumulative and Regressive MeasurementSingle MeasurementPress the " READ " button in measurement mode to emit laser and lock themeasurement point. Press the " READ " button again for single distance datameasurement. Measurement result will be displayed on the main display area.Continuous MeasurementHold the " READ " button on measurement mode to enter continuousmeasurement mode. Secondary display area will display the maximummeasurement value during continuous measurement mode. Main displayarea will display the current measurement value. Press the " READ " buttonor the " OFFCLEAR " button to exit continuous measurement mode.Area MeasurementPress the " " button and the display will show a rectangle. One side ofthe rectangle will flash. Complete the following operations:continued ...REED Instruments1-877-849-2127 | info@reedinstruments.com | www.reedinstruments.com