imc CRONOS-PL/-SL/compact - Getting Started, Version 5 R 7 - 2018-06-28© 2018 imc Meßsysteme GmbH
14 Start of operation with the Hardware
2.2 Power supply
Measurement devices imc CRONOS-PL/-SL/compact are powered by a DC-supply voltage which is
supplied via a 2-pole LEMO-connector.
LEMO connector type designation
imc CRONOS-PL4/-PL8/-PL16
The permissible supply voltage range with imc CRONOScompact, CRONOS-SL/-PL is 10 V to 32 V (DC) at
130 W max. consumption. The product package includes a corresponding desktop supply unit
15 V
DC
(< 60 W) or 24 V
DC
(< 150 W). On the input side the AC-voltage of the desktop supply is
100 V to 240 V 50/60 Hz. The DC-supply inputs of our imc measurement devices are not designed for a
connection to a DC-grid.
Please note, that the operation temperature of the desktop supply is prepared for 0°C to 40°C, even
if your measurement devices is designed for extended temperature range!
Concerning all devices of the imc CRONOS-series:
The package also includes a cable with a ready-made LEMO-plug which can be connected to a DC-voltage
source such as a car battery. When using this, note the following:
·
Grounding of the device must be ensured. If the power supply unit comes with a grounding line, it
would be possible to ground the system "by force", by making a connection from this line to the
plug enclosure (and thus to the device ground). The table-top power supply unit is made to allow
this.
This manner of proceeding may not be desirable because it may be desirable to avoid transient
currents along this line (e.g. in vehicles). In this case the ground-connection must be made to the
device directly. For this purpose a (black) banana jack ("CHASSIS") is provided.
·
The feed line must have low resistance, the cable must have an adequate cross-section. Any
interference-suppressing filters which may be inserted into the line must not have any series
inductor greater than 1 mH. Otherwise an additional parallel-capacitor is needed.
The +pin is marked with a red dot
2.3 Grounding, shielding of the devices
In order to comply with Part 15 of the FCC-regulations applicable to devices of Class B, the system must
be grounded. Grounding is also the condition for the validity of the technical specifications stated.
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