• Power off laser and turn back on (all L-740 and L-730 series lasers have a power protection circuit that needs to be reset if a power surge causes the laser to turn off). (Figure 1)
• Turn off rotation of laser if the beam is OK and check target battery. (Figure 1)
• Check where beam is hitting target. If it hits too low, target will not turn on. (Figure 2)

Figure 1 – Control Panel – L-743 & L-733 Lasers

Figure 2 – 1519 900 Mhz Target – Front View showing Laser beam to low

• Power off laser and turn back on. If the laser does not power on, then it’s possibly a blown laser diode. Return to HLI for repair. (See Figure 1)

• Ensure rotation switch is turned on. (See Figure 1)
• Ensure rotation speed knob is turned up. (See Figure 1)
• Check batteries – if the battery is low, there may not be enough voltage to spin the turret, but the laser may still be visible.
• Environment is too cold. Laser cannot be used below 32 degrees F (0 degrees C).
• Belt drive may be broken. Return to HLI repair.

laser beam

• Ensure power supply is connected.
• Replace batteries in the battery pack.
• Check power supply connector. Widen split in pin inside the female connector on the laser with a small screwdriver. (Appendix A )
• Check A/C power source. Use second A/C power supply if available.

(A-1519/1520) readings on

PDA

• NOTE: On average the user can expect .00002″/ft to .00005″/ft (0.0025 mm/M- 0.004 mm/M) of noise in good operating conditions.
• Check for vibration in laser instrument stand (tripod) or surface the laser is sitting on. If laser is mounted on a machine tool, try turning machine tool off.
• For very noisy readings, check for rotary lights (like on fork lift) or strobe lights (this will look like a “laser” to the target).
• Check for air turbulence – air conditioning vents right over target? Check for open doors in summer or winter. See manual for Atmospheric Conditions.
• Turn off the rotation of the laser and slowly rotate is by hand to check for reflections from metal surfaces. Dim overhead lights if possible.
• Check for excess background light (use light shields). A warning may pop up on PDA display.
• Ensure only one laser is hitting the target at a time. Turn off other laser plane rotation to see if this helps.
• Ensure the target is facing/pointing directly at the laser (within +/- 5 degrees).
• Check light frequency (50 Hz vs. 60 Hz for background light). For correction feature of A-1519/1520 targets, see Target Utility Manual. North & South America is 60 Hz. Europe, Australia and parts of Asia are 50 Hz.
• If PDA is plugged in, try unplugging PDA from A/C adapter.
• Check for possible radio interference.

• Check radio receiver battery. (Appendix B – Replacing the Universal IR Receiver
  Battery) Plug in A/C adapter to ensure it has power.
• Ensure “check box” to the left of the display window in Read9 (see manual) is checked for each target. (See Figure 3)
  
  Figure 3 – Target Readout Screen showing the TargetSelection Boxes

• Ensure channel setting (system ID) on A-1519/1520 matches the setting in PDA (seeRead9 Manual).
• Ensure target ID on A-1519/1520 is set to 1-4 for first screen or 5-8 in second screen inRead9.
• Target is too close to laser (target LED’s will blink).
• Check for reflections.
• Check for strobe lights and rotary lights.
• Check for excess background light (normally target LEDs will blink).
• Plug target into computer via USB cable and open Target Utility software. If software shows reading, then there is probably a problem with the radio.
• Ensure PDA has same radio frequency as target (900 MHz or 2.4 GHz).
• Reset target (use paper clip in hole near Target ID/Channel Selector Panel)(By AuxiliaryPorts for the Zigbee units). (See Figure 4)
  Figure 4 – Back of Target showing Reset Button, System ID & Target Network ID: Zigbee Units, by the Auxiliary Ports
• Laser could be hitting too low or high on target window (it should be near the window).It’s possible for the laser to activate the auto wake up feature of target, but not enough of the beam is hitting the PSD (target sensor) to get a reading. (See Figure 2)

• Ensure A-910 radio base station or A-910-2.4ZB dongle is connected to USB port.
• Ensure the correct COM port is selected for the USB bridge controller – see WindowsDevice Manager (has to be lower than COM10). (See Appendix C)
• Check Device Manager in Windows Control Panel. Set COM port for USB bridge controller lower than COM10. (See Appendix C)
• Ensure the correct target ID is chosen in Machine Tool Geometry or Read8 software.
• Ensure channel setting (system ID) on A-1519/1520 matches the setting in A-910 (see theTarget Utility Manual). (See Appendix D)
• Ensure SND/RC LEDs on A-910 are blinking (See Appendix E)
• Ensure ACTUAL TARGETS (RADIO in Plane5) is selected in Read8, Plane5 or MachineTool Geometry software.
• Ensure antenna is connected to A-910.
• Target may be too close to laser (target LED’s will blink).
• Check for excess background light (normally target LEDs will blink).
• Ensure A-910 radio base station has same radio frequency as target (900 MHz or 2.4GHz).
• Laser could be hitting too low or high on target window (it should be near the window).It’s possible for the laser to activate the auto wake up feature of target, but not enough of the beam is hitting the PSD (target sensor) to get a reading. (See Figure 2)

Beam OK and Rotating

• Check for reflections.
• Check for strobe lights and rotary lights.
• Check for excess background light (normally target LEDs will blink).
• Ensure the beam is not being clipped by an obstruction or not on the edge (upper or lower)of the PSD sensor.
• Laser rotation may be too slow.
• Make sure two lasers are not sweeping across the target.
• Make sure target is facing the laser within +/- 5 degrees.
• Reset target (use paper clip in hole near Target ID/Channel Selector Panel). (See Figure 4)

• Radio communication is working, but the target does not “see’ the laser.
  • Ensure laser beam is not blocked.
  • Ensure laser beam is bright.
  • Check laser power supply, especially if using a battery pack.

• Turn on master power switch.
• Check power supply connection.

• Do not unplug the A-910 from the USB port while still using the program.
• Report to HLI the exact key strokes that created the Runtime Error.

• Ensure USB/Serial Converter cable is connected to the laptop’s USB port. If problem persists, contact HLI.

• Hit RESET switch (See Appendix F)
  • Nomad PDA – Hold green power button down for 3 seconds and release. Tap onRestart in the power menu.
  • Dell PDA – RESET is on right hand side of the back of PDA, near the lower right corner of the radio module.
  • HP IPAQ – RESET is on bottom end of PDA.

• Check the Power Saving Options in the PDA (see PDA manual for details).

• Check the lock switch on the side of the PDA. If that does not work, press RESET. (See Appendix F)

Figure 5 – On/Off Switch

• Check laser is turned on and check switch. When the laser beam is switched on, the red LED on the faceplate lights up to safely indicate that the unit is on.(figure 5) Also if the LED on front of laser is on but dim, it’s probably a low battery. If LED is bright, then the laser diode has probably failed and unit should be sent in for repair.
• Make sure laser shutter is open. Use a straight-edge screwdriver to open or close the shutter. (L-700 only)(figure 6)
• Replace battery (new? Inserted correctly?) (See Appendix G)
• Check for switch damage.
  
  Figure 6 – Shutter Control and Adjustments
  Figure 7 – L-705 Laser Control

• Clean laser optics with alcohol
• Make sure optics are not scratched to cracked

• Clean laser optics with alcohol
• Make sure optics are not scratched to cracked

• This means Software does not see the computer interface. – Check target connections
• Check cable connections.
• Target has to be connected to R-358.
• Make sure R-358 has been charged up (Note: the R-358 takes 3-5 minutes to show a connection to Software when battery is fully discharged.
• Check connectors for broken pins or wires in connectors.
• Make sure in TARGET SETUP that ACTUAL TARGETS
• is chosen under DATA SOURCE tab. (See Figure 9)
• Check for kinks in the cables.
• NOTE: Extremely bright light shining on the face of the target can also cause the display to blank out.

• Probably means Software has been set to the wrong interface – i.e. the R-358 has been set to Hi Res but Software has R-355 Lo Res mode selected. (See Figure Below)
  Figure 8 – Spindle8 Target Setup

• This means Software sees the R-358 but not the target.
• Check target connection.
• Target has to be connected to R-358.
• Check connectors for broken pins or wires in connectors.
• Check for kinks in the cables.
• Make sure laser is turned on. (See figure 5)
• Make sure laser beam is bright (use white paper to see beam).
• Make sure the beam is hitting the center of the target window.
• -Check to see if target angle is too severe – Note the angular range of the T-261A is somewhat limited, so the angle of the target has to be within =/- 0.5 degrees.

• Make sure in TARGET SETUP that ACTUAL TARGETS (not RANDOM DATA) is chosen under the DATA SOURCE tab. (See Figure Below)
  Figure 9 – Spindle8 Data Source Setup

2 meters)

• Check for vibrations (try turning off machine).
• Check for warm or cold air (relative to ambient temp)
• blowing between laser and targets.
• Some A/C power charges for laptops are noisy and can cause noise in the measurements. Try unplugging computer.
• Check laser and target mounting setups to ensure tight clamp.
• Increase data averaging in Software .

• Make sure USB/Serial Converter cable is connected to the laptop.

• Check for broken wires or pins pushed out of Target connectors. Target will probably need repairing.
• Make sure the screws on Target Connector are tightened in the R-358.

• Possible corrupt Targets.ini file (in Windows folder) or Hamar.ini (in Software32 folder). Rename both files. WARNING this will delete all target setup and calibration factors.
• Make sure the screws on Target Connector are tightened in the R-358.