| Symptom | Likely Cause | Fix | |---------|--------------|-----| | No power | Dead battery | Recharge; check cradle contacts | | “Interlock error” | Window missing or safety shutter stuck | Replace window or contact service | | High counts / unstable | Cracked window | Replace Prolene film | | Low counts / long test time | Dirty window, thick paint, or wrong mode | Clean window; grind sample; switch to Alloy Plus | | Wrong alloy ID | Surface contamination or small sample | Clean sample; use workstand with masking | | Cannot connect to PC | Baud rate mismatch | Set 9600, N, 8, 1 on both XLt and PC |

The is more than a quick-start guide—it is your legal, operational, and safety co-pilot. While the device may feel intuitive after a few hundred scans, the nuances of calibration verification, radiation logging, and detector care are only found in those pages.

The manual highlights its ruggedness, but the design is what makes it a field favorite. Built for Extremes:

The device uses a two-handed safety interlock or sample proximity sensor to prevent accidental exposure. Proper operation limits exposure to less than on the hand holding the instrument. Data Management