KROHNE OPTITEMP TRA-TCA EN - Manual (Page 33)

OPERATION
5
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OPTITEMP TRA/TCA
www.krohne.com 08/2010 - 4000630501 - MA OPTITEMP TRA/TCA R01 en
Operation
5.1 Start-up
5.2 Normal operation
During the course of normal operation, it is not necessary to make any adjustments to the
thermometer, measuring insert, temperature transmitter or temperature indicator.
5.3 Faults and damage: Reasons and remedies
In addition, the following faults and damage may occur:
Liquid on the process connection
A damaged or incorrect seal can lead to a leak at the process connection. Should this occur,
replace the seal and ensure that the new one meets the individual requirements of the
measuring point (pressure, temperature, chemically aggressive media). It is the sole
responsibility of the operator of the device to select the right seal.
CAUTION!
Double check the following things prior to starting up an industrial thermometer in order to
avoid measuring errors as well as damage to or the destruction of the thermometer:
• Ensure that the thermowells have been properly installed according to the manufacturer's
instructions.
• Ensure that the process connection has been successfully tested for leaks.
• Ensure that the measuring insert sits firmly on the bottom of the thermowell.
• Ensure that the measuring insert has been properly electrically connected according to the
manufacturer's instructions (refer to measuring insert handbook).
CAUTION!
When operating the converters and the display in the BUZ-HW connection head, always refer to
the technical documentation of these devices.
WARNING!
Never touch the thermowell, neck tube or connection head in operation without protective
gloves! These components can become very hot during operation and cause burns.
INFORMATION!
The most probable cause of a fault is the measuring insert itself and its electronic components
(see the handbook for measuring inserts, subsection "Faults: Reasons and Remedies"). The
following issues come into question here:
• Short circuit or open circuit
• Insulation resistance too low
• Ageing
• Wrong thermocouple wire or compensating line
.book Page 33 Tuesday, August 17, 2010 12:18 PM