FISCHER DS11 User Manual

d e v e l o p i n g s o l u t i o n s
User Manual
DS11 Differential pressure switch
Contents
1 Safety guidelines
2 Application purpose
3 Product and functional description
4 Installation and assembly
5 Commissioning
6 Maintenance and Repeat Tests
7 Transport
8 Service
9 Accessories
10 Waste Disposal
11 Technical data
12 Dimensional drawings
13 Order Codes
14 Manufacturer's Declarations and Certificates
1 Safety guidelines
1.1 General
This operating manual contains instruc-
tions fundamental to the installation,
operation and maintenance of the de-
vice that must be observed uncondi-
tionally. It must be read by the fitter, the operator
and the responsible technical personnel before in-
stallation and commissioning of the device.
This operating manual is an integral part of the
product and therefore needs to be kept close to the
instrument in a place that is accessible at all times
to the responsible personnel.
The following sections, in particular instructions
about the assembly, commissioning and mainte-
nance, contain important
observance of which could pose a threat to hu-
mans, animals, the environment and property.
1.2 Personnel Qualification
The device may only be installed and commis-
sioned by specialized personnel familiar with the in-
stallation, commissioning and operation of this
product.
Specialized personnel are persons who can assess
the work they have been assigned and recognize
potential dangers by virtue of their specialized train-
ing, their skills and experience and their knowledge
of the pertinent standards.
information, non-
1.3 Risks due to Non-Observance of Safe-
ty Instructions
Non-observance of these safety instructions, the in-
tended use of the device or the limit values given in
the technical specifications can be hazardous or
cause harm to persons, the environment or the
plant itself.
The supplier of the equipment will not be liable for
damage claims if this should happen.
1.4 Safety Instructions for the Operating
Company and the Operator
The safety instructions governing correct operation
of the instrument must be observed. The operating
company must make them available to the installa-
tion, maintenance, inspection and operating per-
sonnel.
Dangers arising from electrical components, energy
discharged by the medium, escaping medium and
incorrect installation of the device must be eliminat-
ed. See the information in the applicable national
and international regulations.
1.5 Unauthorized Modification
Modifications of or other technical alterations to the
instrument by the customer are not permitted. This
also applies to replacement parts. Only
the manufacturer is authorized to make
any modifications or changes.