YSI MIQ/Blue PS Set - Manual (Page 44)

Appendix: Installation instructions for several radio links MIQ/Blue PS
7 - 2 ba76095e02 01/2013
7.3 Power supply
Several MIQ/Blue PS
modules on an
IQ S ENSOR N ET island
If several MIQ/Blue PS modules are positioned on one IQ S ENSOR N ET
island, only one of them can take over the power supply. All other MIQ/
Blue PS modules count as consumers in the power rating (power
requirement 0.6 W). Accordingly, only one MIQ/Blue PS module has to
be connected to the power supply.
Compatibility with other
line power supply units
If other power supply modules (e.g. MIQ/PS) are installed on the
IQ S
ENSOR N ET island, the line power supply units of all MIQ/Blue PS
modules are automatically inactive. Connecting the MIQ/Blue PS line
power supply units to a power supply remains ineffective here. In this
case, all MIQ/Blue PS modules are consumers with a power consump-
tion of 0.6 W each in the power rating.
Example Problem:
 An IQ S
ENSOR N ET island should consist of the following compo-
nents plus two MIQ/Blue PS modules:
 In this example, both MIQ/Blue PS modules and the MIQ/CHV
PLUS should be mounted as a stack.
 The IQ S
ENSOR N ET system should be supplied with 100 ...
240 V AC.
Solution/proceeding:
 An MIQ/Blue PS module counts as a consumer with 0.6 W. In the
worst case, i. e. with a docked MIQ/TC 2020 XT, the power require-
ment of all components is 7.8 W. Power losses in cables do not have
to be taken into account due to the stack mounting.
 Power rating: The calculated power requirement is greater than the
maximum power delivery of the MIQ/Blue PS line power supply unit.
Therefore, an additional power supply module has to be installed
(e.g. MIQ/PS).
 New power rating: The second MIQ/Blue PS module has to be taken
into account as a consumer as well. Therefore, the power consump-
tion is now 8.4 W. With an MIQ/PS power supply module (18 W),
there is still an energy reserve of 9.6 W for any future extensions.
Component Power requirement
[W]
VisoTurb
®
700 IQ 1.5
ViSolid
®
700 IQ 1.5
SensoLyt
®
700 IQ 0.2
MIQ/CHV PLUS 1.0
MIQ/TC 2020 XT (docked from time to time) 3.0