Heinrichs Messtechnik
Installation and Operation Manual PITe
Page 7 of 22
5.3 Installation commissioning and maintenance
The devices described in this manual are to be installed and serviced only by qualified technical
personnel such as a qualified Heinrichs Messtechnik electronics engineer or service technician.
Warning
Before servicing, the device must be completely deenergised and disconnected from
all peripheral devices. The technician must also check to ensure that the device is
completely off-circuit. Only original replacement parts are to be used.
5.4 Replacing the transmitter electronics
Before replacing the transmitter electronics, read first the safety instructions in this section.
Warning
Make sure that you abide by the applicable standards and regulations pertaining to
electrical devices, device installation and process technology when replacing the
transmitter electronics. The highly integrated electronic components in the device
carry the risk of ESD hazards and are only protected when installed in the device
pursuant to EMC standards.
Caution
The complete electronic stack is to be replaced with all of its printed circuit boards
(except for the memory chip (DSM)). The specified precision and interchangeability of
the electronics are only guaranteed if the electronic stack is replaced as a whole.
Heinrichs Messtechnik GmbH accepts no liability for loss or damage of any kind arising from improper
operation of any product, improper handling or use of any replacement part, or from external electrical
or mechanical effects, overvoltage or lightning. Any such improper operation, use or handling shall
automatically invalidate the warranty for the product concerned.
In the event a problem arises with your device, please contact us at one of the following numbers to
arrange to have your device repaired:
Phone: +49 221 49708-0
Fax:
+49 221 49708-178
Contact our customer service department if your device requires repair or if you need assistance in
diagnosing a problem.
5.5 Returning the device for repairs or servicing
Note:
According to German waste disposal legislation, it is the owner’s or customer’s responsibility to
dispose of hazardous waste. Thus, before any devices are returned to Heinrichs Messtechnik for
servicing or repairs the following measures must be performed:
•
When returning the unit for an inspection, please enclose as detailed a description as possible
of the fault and the specific application, as well as the chemical-physical properties of the
measurement medium.
•
Remove all residue of measurement medium which may be present.
p
aying special attention
to the gasket grooves and crevices. This is especially important if the medium is detrimental to
health and safety, for example: corrosive, poisonous, carcinogenic or radioactive etc.
•
Costs, which result from insufficient cleaning, (disposal and/or personal injuries) will be
invoiced to the customer.
A decontamination certificate, to be found in section 12 “Declaration of Decontamination“, must be
completed and enclosed in the return delivery!
