50447/SGTN/1306
HERMetic Sampler GTN Chem
3
2. Recommendation for safe use
I.
This Operation and Service Manual is a guide in order to help the user to operate the instrument to
safely and correctly.
II.
Nevertheless the maker disclaims all responsibility and liability for damage resulting from the use of
the equipment regardless of the cause of the damage.
III.
Attention is drawn to the possible hazard due to electrostatic charges which may be present
in the tank.
This may happen in particular with static accumulator liquids, i.e. liquids which have low
conductivity of 50 picoSiemens/metre (pS/m) or less.
IV.
It is very important that the instrument is grounded to the tank before the bottle is introduced
into the tank and remains grounded until after complete withdrawal from the tank.
A.
If the instrument is installed with the quick connect coupler, grounding is effected through the
quick connect coupler and the mating nipple of the valve provided that these parts are kept
clean and free from corrosion in order to guarantee electrical conductivity. If a grease is
used for this purpose, it must be one which contains graphite.
B.
If the instrument is not connected to the mating deck valve, the instrument has to be also
earthed by means of the grounding cable and clamp.
V.
It is anticipated that the user will have specific operating methods laid down to ensure safety
when using this type of apparatus. In this case the user's instructions shall be strictly
observed.
VI.
In the absence of such instructions the following should be noted:
A.
If a metal sounding pipe is fitted beneath the deck valve or tank is inerted, then sampling,
etc. is permissible at any time with no restriction.
B.
If there is no sounding tube or tank is not inerted, the following precautions shall be taken:
1.
If the cargo is not a static accumulator liquid, i.e. its conductivity is more than 50
pS/m, then sampling is permitted provided that the instrument is properly grounded
and earthed before the bottle is inserted into the tank and remains earthed until the
bottle has been removed from the tank.
2.
If the cargo is a static accumulator liquid, i.e. its conductivity is less than 50 pS/m,
then sampling is permitted provided that:
a)
The instrument is properly grounded and earthed before the bottle is
inserted into the tank and remains earthed until the bottle has been
removed from the tank.
b)
The apparatus is not introduced into a tank until at least 30 minutes have
elapsed after completion of any loading operation or stopping the injection
of inert gas.
C.
For further guidance refer to International Safety Guide for Oil Tankers and Terminals
(ISGOTT), ISBN 1-85609-291-7, Fifth Edition 2006, or consult the appropriate Legislative
Authority for the installation.
VII.
This product and his use is / may be related to international, national, local or company
regulations or standards. It is the customer / user responsibility to ensure that the way to use
the device complies with such applicable regulations or standards.
VIII.
This device is a portable product. It must not be permanently installed on the tank and must
be disconnected after use and stored in a safe and dry area.
