Bosch GRL145HV Operating Instructions - Page 7
Operation
UPC - 000346387285
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+/- 30 degrees Y Dead Band . . . . . .Less than 10mm @ 100m Precision setting . .Course: +/- 3mm @ 10m Fine: +/- 1.5mm @ 10m Power 1 x 9V alkaline battery Battery Life Approximately 2000 hrs. Remote Control IP Protection IP 51 Please observe the article number on the type plate of your tool. The trade names of the individual tools may vary. Operation Initial Operation • Protect the tool against moisture and direct sun irradiation. • Do not subject the tool to extreme temperatures or variations in temperature. As an example, do not leave it in vehicles for longer periods. In case of large variations in temperature, allow the tool to adjust to the ambient temperature before putting it into operation. In case of extreme temperatures or variations in temperature, the accuracy of the tool can be impaired. • Avoid heavy impact or and prevent the tool from falling. After heavy exterior impact on the tool, an accuracy check should always be carried out before continuing to work (see "Leveling Accuracy"). • Switch the tool off during transport. Switch off the leveling unit, which can be damaged in the case of intense movement. Turning on the Tool 1. Place the tool either horizontally or vertically on a flat surface, or set it on a standard surveyor's tripod, using the built-in 5/8- 11 tripod mount (located on the bottom of the unit). 2. Turn on the tool with its power switch. The LED turns to a steady green, indicating that the unit is on and properly functioning. 3. Press the laser on/off button to turn on the laser beam. • ALWAYS turn off the laser and the main power switch before transporting or storing the unit. Power Standby Mode When commands are not received for 20 minutes, the GRL 145HV automatically enters the power standby mode to save battery life. The LED flashes green, once per second, to indicate power standby mode. The timer is reset each time a button is pressed. The power automatically turns off after eight hours in Power Standby mode. When the tool enters power standby mode, it "remembers" the settings that were in effect, and returns to these settings when a command is issued and power returns. Current settings are not retained when power is turned off with the main power switch. • To override power standby mode, press and hold the on/off button for three seconds. The unit emits a beep and two "chirps," confirming that automatic power standby is disabled. After automatic power standby is disabled, the unit continues to operate for a maximum period of eight hours. • To re-enable automatic power standby, press and hold the keypad Laser on/off button for three seconds. A beep and a single "chirp" confirm the command. Working with Automatic Leveling Position the tool on a level and firm support, or attach it to the tripod 26. After switching on, the automatic leveling function automatically compensates irregularities within the self-leveling range up to ±6°. The leveling is finished as soon as the tool stops beeping, the LED turns green, and the laser beams stop flashing. If the automatic leveling function is not possible, e.g. because the surface on which the tool stands deviates by more than 6° the tool beeps, the LED flashes red once per second, and the laser beams flash once per second. In this case, bring the tool to the level position and wait for the self-leveling to take place. As soon as the tool is within the selfleveling range of ±6° respectively, the tool stops beeping, the LED turns green, and the laser beams stop flashing. In case of ground vibrations or position changes during operation, the tool is automatically leveled in again. To avoid errors by moving the tool, check the position of the laser beams with regard to the reference points upon re-leveling. -7-