• The elements used in the protective component of “Fib” are
subjected to an acceptance test:
- resistors are tested for their nominal resistance;
- the fuses are checked against the short-circuit current limit;
• Materials used for casting the protective component “Fib”
are subjected to an acceptance test according to the certificates presented.
5.3.7.2 Measures to ensure explosion-proofness before the
production process:
• The elements used in the protective component of “Fib” are
subjected to an acceptance test:
- resistors are tested for their nominal resistance;
- the fuses are checked against the short-circuit current limit;
5.3.7.3 Measures to ensure explosion-proofness during operation:
- control the presence of mechanical damage and corrosion on the
cover or outer shells of the device. In the event of corrosion or mechanical
damage, the operation of the device is prohibited.
- self-disassembly of the device is also not allowed.
- it is forbidden to exceed the operating temperature range of the
level gauge. In the event of an overload of the instrument, the battery
protection board is activated, providing automatic shutdown of the
instrument, thus preventing a critical equipment failure due to self-ignition
of the battery.
5.3.7.4 Measures to ensure explosion-proofness during repair:
- the device must be repaired only by the employees of the
manufacturer. Repair by third parties or individuals is prohibited.
- the protective component “Fib” is not to be repaired. It is made
intact and must be replaced in case of failure. Repair of the “Fib”
component is not permitted.
- after repair, the device must be tested according to the test
procedure, with the “Fib” component tested for short-circuit current and
open-circuit voltage (together with the battery installed).
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