ADwin-Pro
Hardware, manual version 2.9, June 2006
3
Operating Environment
ADwin
3 Operating Environment
Earth protection
The
ADwin-Pro
device must be earth-protected, in order to
– build a ground reference point for the electronic
– conduct interferences to earth.
Connect the GND clamp / plug via a short low-impedance solid-type cable to
the central earth connection point of the controlled system. The GND plug is
internally connected with ground and the enclosure.
Galvanic connection
In the Ethernet cable the data lines are galvanically isolated, but the ground
potentials are connected,
because the shielding of the Ethernet connector
(RJ-45) is connected to GND.
Excluding transient
currents
Transient currents, which are conducted via the aluminum enclosure or the
shielding, have an influence on the measurement signal.
Please, make sure that the shielding is not reduced, for instance by taking
measures for bleeding off interferences, such as connecting the shielding to
the enclosure just before entering it. The more frequently you earth the shield-
ing on its way to the controlled system the better the shielding will be.
Use cables with shielding on both ends for signal lines. Here too, you should
reduce the bleeding off of interferences via the enclosure by using screen clips.
Supply voltage
Operate the device with the defined and fitting supply voltage. For operation
with an external power supply, the instructions of the manufacturer apply.
Close the device for operation, use cover plates to cover gaps between built-in
modules.
Ambient atmosphere
ADwin-Pro
is designed for operation in dry rooms with an ambient temperature
of +5°C … +50°C and a relative humidity of 0 … 80% (no condensation). The
device may be operated in a control cabinet or mobile (e.g. in a car).
Chassis temperature
The temperature of the chassis (surface) must not 60°C, even under
extreme operating conditions – e.g. in a control cabinet or if the system is
exposed to the sun for a longer period of time. You risk damages at the device
or not-defined data (values) are output which can cause damages at your mea-
surement device under unfavorable circumstances.
For use in a control cabinet, please note:
– The device shall not pe placed above strong heat sources, e.g. a high
power transformer.
– Ventilation inside the control cabinet towards and from the
ADwin-Pro
device mus be provided.
Especially, the ventilation slots of the device must be kept free, so that
the device can lead off its generated heat completely.
