ESPE inspection

Maximum safety through certified experts

Electro-Sensitive Protective Equipment (ESPE), such as light grids or light curtains, is vital in demanding day-to-day production. In accordance with BetrSichV, these systems must be inspected before initial commissioning, after significant modifications and at least once a year.

Our certified employees inspect your optoelectronic protective equipment in accordance with the requirements of DIN EN IEC 61496-1, taking into account the implementation instruction DGUV-FBHM-085.

Our services at a glance:

  • Inspection of proper installation and integration into the machine control system.
  • Inspection of the correct interaction between ESPE and machine.
  • Overrun measurement: Precise determination and verification of the required safety distance between the protective equipment and the danger zone in accordance with DIN EN ISO 13855.
  • Good to know: Our employees are specially certified and authorized for manufacturer-independent inspection of ESPE systems.

Your questions,
our answers

Here we answer the questions we are asked most frequently.
Should you have any further questions, we look forward to hearing from you.

Yes. Electro-Sensitive Protective Equipment (ESPE) is subject to recurring inspection obligations in accordance with Section 14 BetrSichV. To guarantee permanent protection of the operator from dangerous closing movements, this inspection must take place at least once a year.

Yes, after every modification, an inspection by a qualified person in accordance with TRBS 1203 is required.

No. The recurring inspection does not have to be carried out by the manufacturer of the light curtain, such as Sick, Keyence, etc. Any manufacturer-independent qualified person authorized to perform inspections in accordance with TRBS 1203, with the relevant expertise and certified measuring equipment, may carry out these inspections in a legally compliant manner.

The core of the inspection is verification of the safe distance to the danger zone in accordance with DIN EN ISO 13855. Using a special overrun measuring device, it is determined how many milliseconds the machine needs to come to a complete stop after the light field is interrupted. This is then used to check whether the physical distance of the light grid is sufficient to prevent reaching into the ongoing movement.

An optical signal, such as a green LED on the light curtain, only indicates that the sensor is functioning – but not whether the mechanical brake or hydraulic valves stop the machine quickly enough. During the ESPE inspection, we carry out a certified overrun distance measurement.

We determine in milliseconds how long the hazardous movement takes to come to a complete stop after the light field is interrupted. This is the only way to provide legally compliant proof that the safety distance between the light grid and the tool is large enough to prevent accidents caused by reaching into the machine.