FISCHER DE44 Operating Manual

Operating Manual
DE44 Digital 2-channel differential pressure switch/transmitter
with 4-digit color change LCD
Contents
1 Safety Instructions
2 Intended Applications
3 Product Description and Function
4 Installation
5 Commissioning and Operating Manual
6 Maintenance
7 Transport
8 Service
9 Accessories
10 Disposal
11 Technical data
12 Dimensional drawings
13 Order codes
14 Declaration of conformity
1 Safety Instructions
1.1 General information
This operating manual contains detailed
information about the installation, opera-
tion and maintenance of the instrument.
This information must be observed and
read by the installer, operator and other skilled per-
sonnel prior to any installation and commissioning
of the instrument.
This operating manual forms part of the product and
must be kept in the immediate vicinity of the instru-
ment for easy access by the responsible personnel
at any time.
The following chapters, especially the instructions
on installation, commissioning and maintenance
contain important safety information, the non-
compliance of which may result in hazards to per-
sons, animals, environment and objects.
1.1 Personnel qualification
Only personnel trained in the installation, commis-
sioning and operation of this product may install
and operate the same.
Skilled personnel are persons who are able to judge
delegated work and possible hazards based on
their technical education, proficiency and experi-
ences, particularly due to their knowledge about the
applicable norms.
1.2 Risks of non-compliance with safety
instructions
Non-compliance with these safety instructions, in-
appropriate use of this product, and/or operation of
this product outside the limits specified for any of its
technical parameters, may result in harm to per-
sons, the environment or the system in which it is
installed.
The producer is not liable for any claims for damag-
es in such circumstances.
1.3 Safety instructions for operators
Safety instructions for the proper use of this product
must be followed. This information must be availa-
ble at all times to personnel responsible for installa-
tion, operation, maintenance and inspection of this
product.
Adequate steps must be taken to prevent the occur-
rence of hazardous conditions that can be caused
by electric energy and the convertible energy of the
process media and/or improper connec-
tion of the instrument. Detailed infor-
mation can be found in the relevant na-