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Preparation
- Identification of possible sources of danger (e.g. water pipes,
air conditioning devices)
- Identification of objects / plant parts that need to be
protected (e.g. computer centers, communication cabinets, valuable
objects)
- Marking of all sources of danger and plant parts that need to
be protected within the building layout
Configuration of the sensor array
Outline the sensor cable path, the point sensors and the
electronic monitoring system(s) into the building layout.
The electronic monitoring system RLW does not necessarily
require an installation plan with meter specifications if the rooms
or objects to be monitored are clearly outlined in the plan and on
site. The leakage location and area can be indicated in plain text.
- Monitoring of individual objects by means of point sensors or
short sensor cable sections
- Large-area monitoring by means of the sensor cable
wave-form floor installation of the sensor cable
(recommended distance = 1.2 m or double pad distance)
- Monitoring of a specific area by means of the sensor cable
Floor installation of the sensor cable directly alongside the
danger sources, i.e. complete isolation of the danger source.
Planning the electronic monitoring system
- Specification of the number of buildings, rooms, floors,
sectors/areas to be monitored
- Necessity of leakage detection yes/no
(depends on the size and visibility of the object in case of a
leakage)
The electronic monitoring systems RDW or RDA are
used for monitoring tasks that do not require any detection.
Both sensor cables and point sensors can be connected.
- For the performance characteristics see the data sheet.
The electronic monitoring system RLW is used for monitoring tasks
that do require the detection feature. Both sensor cables and
point sensors can be connected.
- For the performance characteristics see the data sheet.
Number of electronic monitoring systems
The number of electronic monitoring systems should, in general,
be determined with the help of the final building layouts.
| Recommendation: |
- If, in case of a leakage, an alarm averts the
central operator and active measures are introduced (such as
the closure of single water inlets), the number of electronic
monitoring systems should be increased during the planning
phase in order to achieve a selective turnoff.
- If parts of the building or certain areas are far
apart from each other, we recommend one electronic monitoring
system for each building or area.
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Installation
A later installation of sensor cables or point sensors in false
bottoms is possible at any time.
The sensor cable is fastened directly onto the painted and
cleaned screed.
Advantage
- The highly flexible cable is easily installed or pulled in.
- Reasonably prewired cable lengths facilitate and accelerate
the installation procedure.
- Simple and fast installation thanks to special self-adherent
tapes.
- Dirt-free working (important in case of ultra-clean rooms,
computer centers etc.).
Documentation needed for the installation
- Installation plan
- System documentation consisting of :
Description, data sheets, installation instructions and
indications, user instructions,
start-up, operational performance, test protocol
Instant of installation
All works within the false bottom (including the final
cleaning-up) should be finished prior to the installation of the
sensor cable.
- Prevention of sensor cable damages.
Installation indications for the sensor cable
- The floor must be dry, dirt-free and possibly
dust-free.
- Use self-adherent tape to fix the sensor cable where required
(e.g. false bottom).
- Fasten the sensor cable to the floor at 1-m-distances.
- The sensor cable must not be flattened against metal parts as
the electronic evaluation system checks the cable for its
electrical resistance.
- Condensate dripping from pipes or coolers must not wet the
sensor cable.
- For flush-mounting in walls or other confinements, a
non-detecting connection cable, a protective conduit or a flexible
tube must be used.
- Locations where the sensor cable could be damaged should be
marked by way of labels ("Attention – delicate sensor cable").
- The sensor cable must rest on the surface to be monitored (obstacles
such as directly installed cable routes may be jumped if leakage
monitoring can be immediately continued on the other side of the
obstacle).
- In the installation plan, outline the sensor cable length
actually installed (especially in case of partial lengths with
T-branches).
- After its installation and prior to the system start-up, the
sensor cable should be checked for its insulation resistance (see
test protocol).
- See the system documentation for the start-up procedure and
technical data.
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PDF catalog Water Detection systems