50447/SGTN/1306
17
HERMetic Sampler GTN Chem
7. Care & Maintenance
7.1 Safety warning
As this equipment has been certified as non-electrical equipment for potentially explosive
atmospheres. Specific precautions have to be taken regarding maintenance of the device. The
user can exchange parts and modules if following points are observed :
1. Never carry out any repair or trouble shooting in an hazardous area.
2. Substitution of components may impact safety. Use only original spare parts.
3. Work shall be done only by maintenance personel who has experience with equipment certified
for use in potentially explosive atmosphere.
The design of the equipment is modular, i.e. in case of damage, check which modules or spare
parts have to be replaced. Order new parts according to enclosed drawings and specific item
number TS -----. The instrument consists of the following modules:
Mechanical parts
Tape assembly
Tape cleaner
7.2 General Care & Considerations
Clean the instrument of any excess of liquid after use. Remove the carter winder and clean the
storage tube. This cleaning must be done very properly, in particular when corrosive liquids are
sampled, such as strong acids or caustic soda for instance.
Store the instrument in a dry location.
Check periodically whether the general state of the device is still OK.
Check periodically whether all the sealings are still OK. Check periodically the gas-tightness of the
unit up to 0.3 bars with an appropriate leak detector.
Check the tape wiper for wear. If necessary tighten it with the hexagonal key 1.3 mm.
Clean periodically the sampling bottle. Check the valves of sampling bottles for liquid leakage.
Check periodically the tape for kinks.
Check periodically the bearings state. Bearings have limited life span.
Check periodically (at least every 6 months) the continuity of grounding by measuring the electrical
resistance between the hook lock (or the sampling bottle) and the quick connect coupler.
Resistance should not exceed 100
.
