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What safety precautions must be followed when using the RAYEX S?

This article explains the essential safety precautions that must be followed when installing, operating, maintaining, or servicing the RAYEX® S measuring system.

General safety principles

The RAYEX® S is an industrial X-ray measuring system. Although it is designed with multiple safety mechanisms, improper use can lead to serious safety risks.

  • The system may only be operated by trained and authorized personnel.

  • All safety instructions in the instruction manual must be followed at all times.

  • The RAYEX® S must only be used for its intended purpose.

Failure to comply with safety precautions can result in injury, equipment damage, or exposure to hazardous radiation.

X-ray and radiation safety

The RAYEX® S generates X-rays during operation. The system is designed so that radiation remains within legally permitted limits when used correctly.

The following precautions must be observed:

  • Never operate the system with damaged or missing protective covers or tubes.

  • Do not use the system if there is any suspicion of excessive stray or scattered radiation.

  • If the housing or protective components are damaged, the unit must be taken out of service immediately.

  • Radiation safety checks must be performed as specified in the maintenance instructions.

If radiation limits cannot be guaranteed, the system must not be used.

Electrical safety and high voltage

During operation, the RAYEX® S generates high voltage inside the housing.

The following electrical safety precautions apply:

  • Never open the housing or remove covers while the system is powered.

  • Always disconnect the unit from the mains power supply before performing maintenance or service work.

  • Be aware that dangerous voltages may still be present if safety instructions are ignored.

  • Only qualified electricians may perform electrical installation, maintenance, or repairs.

Improper handling can result in electric shock or serious injury.

Emergency shut-off and safety circuits

The RAYEX® S is equipped with internal and external safety circuits.

Safety requirements:

  • The external emergency shut-off circuit must be properly connected and functional.

  • The system must switch to a safe state immediately when the emergency shut-off is activated.

  • Safety circuits must never be bypassed or modified.

  • Only one external safety option (switch or relay) may be connected at a time.

If the emergency shut-off does not function correctly, the system must be taken out of service.

Safe operation and environmental conditions

To ensure safe operation:

  • Operate the system only within the specified ambient temperature limits.

  • Ensure sufficient free space around the unit for cooling.

  • Do not operate the system in environments with excessive dust, moisture, or aggressive chemicals unless appropriate accessories (e.g. blower) are installed.

  • The product must pass perpendicularly through the measuring field.

Unsafe operating conditions may lead to system failure or inaccurate measurements.

Maintenance and service safety

When performing maintenance or service:

  • Always disconnect the power supply before starting.

  • Only replace parts that are explicitly listed as customer-replaceable.

  • Handle ESD-sensitive components with appropriate care.

  • Never open X-ray sources, as they contain no serviceable parts.

All other repairs must be carried out by Zumbach service engineers or authorized personnel.

Mandatory safety checks

Safety checks must be performed:

  • At first start-up

  • After moving the device

  • After a breakdown or incident

  • At least once per year

  • Whenever there is doubt about safe operation

If any safety check fails, the RAYEX® S must be taken out of service immediately and returned for repair.