Test station with automatic protection using light barrier sensor S 2110

End-of-line safety testing in production

Test station using enclosures such as test cages without doors is the preferred solution for production with very high frequency of testing. The safety of such system is assured with a light barrier sensor (light curtain). The light sensor monitors breaching of the prohibition zone by any object. If the light curtains detect a breach, the safety module will disconnect the measurement circuits from the mains. The testing sequence can only start when the light sensors are activated and the prohibition zone is not breached, making malfunction or misuse practically impossible.

Test stations which have automatic protection against direct contact may be operated without the control and supervision of a skilled person.

IEC 60335-1 is one of the most widely recognized standards in the field of testing electrical equipment in production lines. Annex A of the IEC 60335-1 specifies that routine tests are to be carried out by the manufacturer on each appliance to detect production variations that could impair safety. They are normally carried out on the completed appliance after assembly, but the manufacturer may perform the tests at an appropriate stage during production, provided that later manufacturing processes do not affect the results.

The following tests are the minimum considered necessary to cover essential safety aspects. It is the manufacturer’s responsibility to decide if additional routine tests are necessary. It may be determined from engineering considerations that some of the tests are impracticable or inappropriate and therefore need not be carried out.

  • Earth continuity test
  • Dielectric strength test
  • Functional test

Measurements

MI 3394 XS (Extra Safety) is a specialised test instrument designed for integration into production lines. The instrument permits the connection of several safety sets for independent control of dangerous measuring circuits. It also supports user-created test sequences with comments, images, wiring diagrams and other extra content.

The parameters and limits can be adjusted for all tests. The instrument can be remotely controlled via black-box protocol, which makes it ideal for integration into automated test systems.

Main features of the instrument:

  • All features of MI 3394 CE MultiTesterXA.
  • Control of measuring circuits with help of Safety sets.
  • Perfectly suited for use in workplaces conforming to EN 50191.

Downloads

Industrial catalogues Language Version Release Notes Type Size Download
Electrical equipment en 2023 18.12.2023 pdf 1.54 MB

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Associated Products

MI 3394 CE MultiTesterXS

A 1600 CE Switch 5kV

Accessory description:
The A 1600 CE Switch 5kV combines all features of the CE MultiTesterXS and extends them to four HV test channels and two 4-wire continuity test channels. The CE Switch could be used in conjunction with several separate connection boxes, containing various kinds of contacting to tested items. The operation of CE Switch is completely controlled by the master instrument, no user intervention during the tests is needed. I/O connections and LEDs for controlling the Autosequence® flow are integrated. Testing of electrical equipment with multiple connection points is supported. The switch recognizes the connected adapter and prevents from applying too high voltages/current to it (protection by HW and SW).
May be part of the following product sets (consult specific product page for more information):

A 1674 19” Rack housing

Accessory description:
The A 1674 compact desktop enclosure is designed for integration of the CE Multitester instrument, or/and A 1600 SWITCH 5kV. Its design enables fast and simple integration of measuring components.
May be part of the following product sets (consult specific product page for more information):

A 1676 Single chamber test cage

Accessory description:
The A 1676 Single chamber test cage construction is designed “ready” for integration of light curtain safety module. The safety module provides the automatic protection against direct contact by light curtains. If the light curtain detects the bridge inside the prohibition zone, the safety module disconnects measuring circuits from the mains. No closing door is needed.
May be part of the following product sets (consult specific product page for more information):

S 2110 Safety system with safety light curtains

Accessory description:
This safety module is a production friendly safety component that does not physically impact on the actions of the operator. The goal of light curtains is to provide safety by ceasing test system operations if an object crosses a specified safety zone. The light curtains monitor if any object has breached inside the prohibition zone, if the light curtains detect a breach the safety module will disconnect the measuring circuits from the mains.
May be part of the following product sets (consult specific product page for more information):

A 1626 Connection box 1-phase

Accessory description:
Diversity of electronic products, which need to be tested, present a many challenges for the manufacturers. Different sizes, shapes and configurations of electronic devices make it challenging for electrical safety examination. Due to these facts Metrel has developed different types of connection boxes, which can be easily adopted to customer’s needs. The A 1626 connection box is a passive devices that acts as a connection interface between the CE SWITCH and the tested equipment. It is intended for connection of various 1-phase appliances to A 1600 CE SWITCH. Equipment with supply cord, equipment intended for fixed installation, electronic subassemblies can be tested. Connections for connection to isolated conductive parts and earthed parts are added. The connection box is coded in order to prevent from applying a too high test voltage to its outputs.
May be part of the following product sets (consult specific product page for more information):

A 1627 Connection box 3-phase

Accessory description:
Diversity of electronic products, which need to be tested, present a many challenges for the manufacturers. Different sizes, shapes and configurations of electronic devices make it challenging for electrical safety examination. Due to these facts Metrel has developed different types of connection boxes, which can be easily adopted to customer’s needs. The A 1627 connection box is a passive devices that acts as a connection interface between the CE SWITCH and the tested equipment. It is intended for connection of various 1- and 3-phase appliances to A 1600 CE SWITCH. Equipment with supply cord, equipment intended for fixed installation, electronic subassemblies can be tested. Connections for connection to isolated conductive parts and earthed parts are added. The connection box is coded in order to prevent from applying a too high test voltage to its outputs. 
May be part of the following product sets (consult specific product page for more information):

A 1688 Universal connection box

Accessory description:
Diversity of electronic products, which need to be tested, present many challenges for the manufacturers. Different sizes, shapes and configurations of electronic devices make it challenging for electrical safety examination. Due to these facts Metrel has developed different types of connection boxes, which can be easily adopted to customer’s needs. The A 1688 connection box is a passive device that acts as a connection interface between the CE SWITCH 5 kV and the tested equipment. It is intended for connection of various 1- and 3-phase appliances to A 1600 CE SWITCH 5 kV. Equipment with intended for fixed installation and electronic subassemblies can be tested. Connections for connection to isolated conductive parts and earthed parts are added. The connection box is coded in order to prevent from applying a too high test voltage to its outputs.
May be part of the following product sets (consult specific product page for more information):

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