KROHNE OPTITEMP TT 10 C-R EN - Manual (Page 16)

3
INSTALLATION
16
OPTITEMP TT 10 C/R
www.krohne.com 02/2013 - 4000752703 - MA OPTITEMP TT 10 C/R R03 en
Installation
3.1 Notes on installation
3.2 In-head transmitter (Ex and Non-Ex)
INFORMATION!
Inspect the cartons carefully for damages or signs of rough handling. Report damage to the
carrier and to the local office of the manufacturer.
INFORMATION!
Do a check of the packing list to make sure that you have all the elements given in the order.
INFORMATION!
Look at the device nameplate to ensure that the device is delivered according to your order.
DANGER!
Never install or operate the Non-Ex version in potentially explosive areas, it might cause an
explosion that can result in fatal injuries! Only use the Ex version in potentially explosive areas!
Also note the following items which concern the Ex version:
• It must be installed in a housing that has the protection category IP20 or better according
to DIN IEC 60529 (an exception are in-head transmitters mounted on a rail as described in the
next section). Additionally the magnesium component of the housing must not exceed 6% as a
higher magnesium component may increase the flammability and the Ex capability.
• If it is mounted in a housing which is isolated from the ground and can be charged to an
ignition capable level, then the housing must be electrostatically grounded when installed in
hazardous areas.
• It is approved for potentially explosive areas (zone 0).
• It must be electrically connected (terminal 4 and 5) via a certified isolating interface/zener
barrier having double or reinforced insulation which shall be placed outside the hazardous
area.
CAUTION!
The manufacturer has developed the Non-Ex version for an operating temperature range of
-40...+85°C / -40...+185°F (the Ex version has the same ambient temperature range). To avoid
destruction or damage of the device, always assure that the operating temperature or the
ambient temperature does not exceed the permissible range and note the following items:
• If you operate the Ex version in potentially explosive areas, the ambient temperature also
depends on the temperature classification. For detailed information refer to the section about
the temperature data for potentially explosive areas on page 46.
• The thermowell also transfers the process temperature to the transmitter housing. If the
process temperature is close to or exceeds the maximum temperature of the transmitter,
then the temperature in the transmitter housing can rise above the maximum permissible
temperature!
.book Page 16 Tuesday, February 26, 2013 1:43 PM