KROHNE OPTITEMP Compact sensors - Manual (Page 30)

6
SERVICE
30
OPTITEMP TRA-CXX
www.krohne.com 02/2014 - 4003290501 - MA OPTITEMP TRA-Cxx R01 en
Service
6.1 Cleaning and maintenance
As a rule, the temperature assemblies require no cleaning or maintenance. However,
depending on the conditions of use and the thermal and mechanical load, they can age. This is
true of both measuring inserts with Pt100 RTDs and measuring inserts with thermocouples.
As a result of the ageing process, the characteristics ("characteristic curve") can change. That
means that the relationship between the electrical resistance (measuring insert with Pt100 RTD)
or the thermovoltage (measuring insert with thermocouple) and the temperature changes. In
this case, calibration shows whether any deviations in measurement values are still within
permissible tolerances.
6.2 Availability of services
The manufacturer offers a range of services to support the customer after expiration of the
warranty. These include repair, maintenance, technical support and training.
6.3 Returning the device to the manufacturer
6.3.1 General information
This device has been carefully manufactured and tested. If installed and operated in accordance
with these operating instructions, it will rarely present any problems.
INFORMATION!
For more precise information, please contact your local sales office.
CAUTION!
Should you nevertheless need to return a device for inspection or repair, please pay strict
attention to the following points:
•
Due to statutory regulations on environmental protection and safeguarding the health and
safety of our personnel, manufacturer may only handle, test and repair returned devices that
have been in contact with products without risk to personnel and environment.
• This means that the manufacturer can only service this device if it is accompanied by the
following certificate (see next section) confirming that the device is safe to handle.
CAUTION!
If the device has been operated with toxic, caustic, flammable or water-endangering products,
you are kindly requested:
•
to check and ensure, if necessary by rinsing or neutralising, that all cavities are free from
such dangerous substances,
• to enclose a certificate with the device confirming that is safe to handle and stating the
product used.
.book Page 30 Friday, February 7, 2014 9:17 AM