Endress+Hauser FEC 22 - Notes on Safety; Approved Usage; Explosion hazardous areas

Notes on Safety
Approved UsageThe FEC 22 electronic insert is intended for use as a limit switch in combination with
the Multicap or Multicap T probe. It has been designed to operate safely in
accordance with current technical standards. If installed incorrectly or used for
applications for which it is not intended, however, it is possible that application-related
dangers may arise.
The manufacturer accepts no responsibility for any damage arising from incorrect
use. Changes or modifications to the equipment which are not expressly approved in
this manual or by the bodies responsible for compliance may void the user’s authority
to operate the equipment. Damaged equipment which may present a hazard must not
be operated and is to be marked as defective.
Explosion hazardous
areas
When using the measuring system in explosion hazardous areas all local regulations
and conditions related to measurement and safety of the measuring points must be
observed. These conditions are stated in the certificates.
Installation,
commissioning
and maintenance
Installation, electrical connections, commissioning and maintenance of this instrument
may only be carried out by trained personnel authorised by the operator of the facility.
Personnel must read and be thoroughly familiar with these Operating Instructions
before carrying them out.
OperationThe instrument may only be operated by personnel who are authorised and trained by
the operator of the facility. All instructions in this manual must be observed.
Table of Contents
Notes on Safety . . . . . . . . . . . . 25
1 Introduction . . . . . . . . . . . . . . 27
1.1 Field of Application . . . . . . . . . . 27
1.2 Measurement principle . . . . . . . . 27
1.3 Measuring system . . . . . . . . . . 27
2 Mounting . . . . . . . . . . . . . . . 28
3 Electrical Connection . . . . . . . . . . 28
4 Operation . . . . . . . . . . . . . . . 29
4.1 Operating elements . . . . . . . . . 30
4.2 Display elements . . . . . . . . . . 30
5 Commissioning . . . . . . . . . . . . 31
5.1 Reset to factory-set values (reset) . . . . 31
5.2 Calibration when free . . . . . . . . . 32
5.3 Calibration when covered . . . . . . . 32
5.4 Calibration when free and covered . . . 32
6 Additional Settings . . . . . . . . . . . 33
6.1 Manual switchpoint adjustment . . . . . 33
6.2 Switchpoint optimisation . . . . . . . . 34
6.3 Minimum/maximum fail-safe mode . . . . 36
6.4 Switching delay . . . . . . . . . . . 36
6.5 Service mode . . . . . . . . . . . . 37
7 Trouble-Shooting and Remedies . . . . . 38
8 Replacing an Electronic Insert . . . . . . 38
9 Repairs . . . . . . . . . . . . . . . . 39
10 Waste Disposal . . . . . . . . . . . . . 39
11 Technical Data . . . . . . . . . . . . . 39
Index . . . . . . . . . . . . . . . . . 41
Table of Contents
Elektronic insert FEC 22
Endress+Hauser 25