Binder VDL 23 User Manual

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VDL (E3.1) 10/2020 Page 167/196

26. Maintenance and service, troubleshooting, repair, testing

DANGER

Fire and explosion hazard due to explosive atmosphere during maintenance and ser-

vice, troubleshooting, repair, and testing.

Serious injury or death from burns and / or explosion pressure.

 Before performing troubleshooting, maintenance or repair work, make sure that there is

no explosive atmosphere in the installation area of the chamber or inside the chamber

∅ Do NOT perform any maintenance, repair or tests on the chamber in potentially explo-

sive areas.

 Conduct the explosion protection test when performing the annual maintenance and af-

ter repair.

∅ Do NOT put the chamber into operation if it did not pass the explosion protection test.

 Before commissioning, ensure that the system is correctly and completely grounded.

26.1 General information, personnel qualifications

• Maintenance

Please refer to chap. 26.3

• Simple troubleshooting

Chap. 26.2. describes troubleshooting by operating personnel. It does not require technical intervention

into the chamber, nor disassembly of chamber parts

For personnel requirements please refer to chap. 1.1

• Detailed troubleshooting

If errors cannot be identified with simple troubleshooting, further troubleshooting must be performed by

BINDER Service or by BINDER qualified service partners or technicians, in accordance with the de-

scription in the VDL Service Manual.

For personnel requirements please refer to the Service Manual.

• Repair

Repair of the chamber can be performed by BINDER Service or by BINDER qualified service partners

or technicians, in accordance with the description in the VDL Service Manual.

After maintenance, the chamber must be tested prior to resuming operation. An electrical test and an

explosion protection test are required.

• Electrical testing

To prevent the risk of electrical shock from the electrical equipment of the chamber, an annual repeat

inspection as well as a test prior to initial startup and prior to resuming operation after maintenance or

repair, are required. This test must meet the requirements of the competent public authorities. We rec-

ommend testing under DIN VDE 0701-0702:2008 in accordance with the details in the Service Manual.

For personnel requirements please refer to the Service Manual.

• Test for explosion protection

Testing before initial commissioning and before restarting after maintenance or repair as well as repeat

tests according to the explosion protection concept created by the operator is required.

Observe the relevant legal regulations for the qualification of the examiner. In Germany, the explosion

protection test may only be carried out by a qualified person recognized by a state authority or by

the manufacturer (BINDER Service).

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Binder VDL 23 Vacuum drying