Siemens SITRANS LR 200 Quick Start Manual page 16

processes which deviate from the intended operating conditions, provided that this
does not compromise safety.
10. The 'X' suffix to the certificate number relates to the following special conditions for
safe use:
a. Parts of the enclosure may be non-conducting and may generate an ignition-
capable level of electrostatic charge under certain extreme conditions. The
user should ensure that the equipment is not installed in a location where it
may be subjected to external conditions (such as high-pressure steam) which
might cause a build-up of electrostatic charge on non-conducting surfaces.
b. As either Aluminum, Magnesium, Titanium or Zirconium may be used at the
accessible surface of the equipment, in the event of rare incidents, ignition
sources due to impact and friction sparks could occur. This shall be considered
when the SITRANS LR 200 (PROFIBUS PA) is being installed in locations that
specifically require group II, category 1G equipment.
11. The certification of this equipment relies upon the following materials used in its
construction:
Aluminum alloy ANSI ref. A380.0 (aluminum enclosure option)
STYCAST
The detailed composition of Aluminum A380.0 as used in the metal enclosure
(threaded lid option only) is as follows:
Si – 8.5%, Fe – 1.3%, Cu – 3.5%, Mn – 0.5%, Mg – 0. 1 %, Ni – 0.1%, Zn – 3%,
Sn – 0.35%, others – 0.5%, Al - balance
If the equipment is likely to come into contact with aggressive substances, then it is
the responsibility of the user to take suitable precautions that prevent it from being
adversely affected, thus ensuring that the type of protection is not compromised.
Aggressive substances:e.g. acidic liquids or gases that may attack metals, or
Suitable precautions:
12. Equipment Marking:
The equipment marking contains at least the information on the product label,
shown on the inside front cover of this manual.
1.
STYCAST® is a registered trademark of the National Starch and Chemical Company.
Page EN-14 SITRANS LR 200 (PROFIBUS PA) – QUICK START MANUAL
1
2651-40FR encapsulant, catalyst II
solvents that may affect polymeric materials.
e.g. regular checks as part of routine inspections or
establishing from the material's data sheet that it is
resistant to specific chemicals.
7ML19985QG81