Explanation: The safety manual is explicit: the first installation after delivery must be carried out by an authorized authority (approved distributor or manufacturer representative). This includes site readiness verification, calibration, warranty activation, and training opportunity for customer staff. Customer staff may observe and learn — but the authority owns completion.

Explanation: Voltage / amperage mismatch can damage the device or create an electrical hazard. Always verify the rating plate matches your mains supply before connecting. Some models also have a voltage selector switch (2.5A / 5A) — selecting the wrong setting burns the unit. If the device and supply do not match, contact an electrician.

Explanation: Grounding is mandatory. Never bypass the ground pin or use a non-grounded extension cord. If no shockproof socket is available at the installation site, the correct action is to have one installed (or relocate the device) — not to improvise with an ungrounded connection.

Explanation: Always power down at the Control Unit first, then disconnect at the plug (not the cable). Pulling the cable damages the strain relief and the internal wire-to-plug bond over time, eventually creating a fire and electrical hazard. Switching off the wall socket is not equivalent to disconnecting — the device remains energized internally.

Explanation: A powered-stationary device is not safe to approach — it can move at the next command (resume of paused sequence, next frame trigger, or remote operation). The safety manual is explicit: do not approach when the device is moving OR when it is powered up. Always power down at the Control Unit mains switch first.

Explanation: Damaged supply cord = device must not be used until replaced. The “outer layer only” judgment is not for the operator to make — insulation damage is binary in safety terms. The replacement must be performed by an authority using original specifications. Tape repairs and generic replacements both create electrical hazard and void warranty. Production deadlines do not override safety.

Explanation: Surface cleaning must use a damp (not wet) soft cloth with neutral detergent. Water spray and steam are forbidden — they ingress moisture into electronics. Abrasive cleaning pads, solvents, and metal objects damage the surface and can compromise the protective housing. Before any cleaning, the device must be deactivated AND the mains plug disconnected.

Explanation: Any task requiring opening the device housing or accessing electrical components is service — authority only. Service uses original spare parts only. Third-party fuses (even if specifications appear to match) are not authorized — manufacturer can decline warranty service if non-original parts are installed. The temptation to “just check” a fuse exists, but the correct action is to contact the authority.

Explanation: PhotoRobot devices are designed for indoor industrial environments only. The safety manual is explicit: “Do not install or use the device anywhere it is exposed to the weather.” This is not about rain alone — temperature swings, humidity, dust, and direct sun all exceed the device’s operational specifications and degrade electronics + mechanical components.

Explanation: Every powered device has a defined working envelope — the spatial volume in which moving parts can reach. Operators must know the envelope of each device they work with and keep themselves and bystanders outside it during operation. Device-specific envelopes are documented in each installation manual.

Explanation: The safety manual addresses children and vulnerable adults: children 8+ can be near the device under supervision OR after receiving safety instructions, with the operator understanding the hazards. Children under 3 require constant supervision. Children must never be allowed to play with the device. The detail that “equipment must never become a toy” matters — even older children left unsupervised can treat industrial equipment as a play opportunity.

Explanation: Stop-and-escalate triggers protect both operator and equipment. The first four are valid: any anomaly (sense), mismatch (label), authorization (procedure), or proximity (bystander) is a trigger. The last two are NOT triggers — they are rationalizations for unsafe shortcuts. “Manager not watching” and “I’ve done similar before” are the most common precursors to incidents. Safety culture treats them as warning signs, not green lights.