wtw IQ SENSOR NET System 2020 XT, Operating Manual

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Installation System 2020 XT C
ONNECT
3 - 2
ba75970e01 10/2012
3.3 Basics of the installation
3.3.1 System planning
Overview of planning
steps
Fig. 3-1 System planning
- Sum of all line lengths max. 1000 m
- Of these, max. 500 m branch lines
altogether
- Single branch line max. 250 m
Total line lengths of > 1000 m
can be realized with the
signal amplifier module
MIQ/JBR
Total line lengths < 400 m
not have to be taken into account do
More power required due to cable losses:
From
1 watt per
100 m additional line length.
400 m total line length
- Position power supply modules near
main consumers (e. g. UV/VIS sensor)
- Further power supply module or adjust-
ment of infrastructure if necessary.
Power requirement =
S
P of all consumers
- Number and types of required sensors
- Measuring locations to be designed
- Number of required operating locations
- Distances
- Infrastructure, process environment etc.
Rough planning
Rough determination of power requirement
Consideration of cable losses
Rating
Fine adjustment
IQ to layout S
ENSOR
N
ET
Power requirement of components
Total power requirement
Number of power supply modules
required
Fundamentals of planning
Start
End
S
P of all power supply modules >
total power requirement
Arrangement of
power supply modules