Automatic well sounder “DUA-1”
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1) Do not open the instrument cover and therefore the battery
compartment cover in hazardous areas;
2) Do not replace the battery and operate the computer in hazardous
areas;
3) Do not charge the battery in explosion hazard area;
4) Only the types of batteries specified in the manufacturer's
technical documentation may be used as power sources;
5) Constituents and circuits ensuring intrinsically safe design shall
not be repaired and in case of failure shall be replaced by new ones
supplied by the manufacturer;
6) The device's operability is maintained at ambient temperature
from minus 40 to plus 50
о
С.
2.4.4. 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).
2.4. Preparation for use
Unpack the product (remove it from the transport container, remove
the packing bags), check the completeness of the product in accordance
with the "Completeness" section of the certificate IZM 5.173.024 PS.
If the product has been previously used, clean it from contamination
and check the threaded part of the connecting coupling of the product. In
case of severe wear, corrosion or damage to the threaded part, installation
of the product is not allowed.
