YSI IQ SensorNet 2020 XT Terminal - Manual (Page 32)

Installation System 2020 XT USB
3 - 2 ba76019e01 12/2012
3.3 System planning
Overview of the
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 = SP 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 topology + layout S ENSOR N ET
Power requirement of components
Total power requirement
Number of power supply modules
required
Fundamentals of planning
Start
End
SP of all power supply modules >
total power requirement
Arrangement of
power supply modules