User's Manual

39
VIBCONNECT RF 11.2011
• Wait for approx. 3 – 4 seconds until the reception / voltage has
stabilized. Wait for approx. 3 – 4 seconds until the reception /
voltage has stabilized.
U > 0.1 V: Reception OK
U
max.
= 1.25 V
• If radio reception at the location of installation is poor, remove
the antenna from the housing and mount it in a suitable loca-
tion. To connect the antenna to the sensor unit, use a SMA cable
of appropriate length.
• After completion of the field strength measurement, remove the
short-circuit bridges and the voltmeter.
• If you do not intend to commission the sensor unit at that point
in time, remove one of the batteries to save energy.
Notes
Avoiding potential loops
If the antenna connection cable must be extended, ensure that
you do not inadvertently create a potential loop.
» The antenna cable must be installed so that potential differences
are avoided.
Maintaining battery charge
Until the sensor unit has received a valid measuring configuration
from the bridge, it continuously sends out requests, using battery
power.
» If you wish to program the measuring configuration at a later
stage, switch off battery-powered sensor units by removing
one battery.
Installation and commissioning
Under Industry Canada regulations, this radio transmitter may only
operate using an antenna of a type and maximum (or lesser) gain
approved for the transmitter by Industry Canada. To reduce potential
radio interference to other users, the antenna type and its gain should be
so chosen that the equivalent isotropically radiated power (e.i.r.p.) is not
more than that necessary for successful communication.