6
In principle, in an ideal situation, the transmitter and the router resp. the base station
should be within ‘eyesight’ to achieve an optimal strength of the signal.
If that is not possible, a more appropriate location can be found using the features of the
base station EE242, with the support of an amplifying router.
The changes of the strength of the transmitter signal are indicated in a percentage (%), by
the signal indicator on the web server of the EE242.
If obstacles are hindering the connection between the transmitter and the base station, the
use of a router can help to bypass the obstacles and increase the transmission distance.
A connection of several routers in series is possible without any problems.
Optimal positioning of a router:
- To reduce cost several different transmitters can be channeled over one router.
- The router should always be aligned with the weakest transmission connection.
- A maximum of 10 wireless connections per router / base station; see outline 2.1.3.
2.1.2. Installation of a wireless system
2.1.3. Example for a wireless measurment setup
SENSING PROBE
TRANSMITTER
(max. 500 pcs)
ROUTER
(max. 60 pcs)
BASE STATION
max. 10 transmitters
*) Range of coverage:
- up to 100m within buildings
- up to 1.000m free flied (without obstacles)
*)
max. 10 transmitters or routers
2.2
Components of the series EE240
2.2.1 Sensing Probe
There are several different sensing probes available, for the measurement of
temperature, relative humidity, and carbon dioxide (CO
2
).
Each sensing probe has its calibration data stored internally, is therefore 100%
interchangeable, and can be installed remotely with a sensor cable at up to 10m (33ft).
For a detailed technical description, see chapter 3.2 Transmitter, Sensing Probe.
2.2.2. Transmitter
The transmitter powers the sensing probe and transmits wirelessly the measurement data.
Each transmitter can be equipped with a maximum of three sensing probes.
For a detailed technical description, see chapter 3.2 Transmitter, Sensing Probe.
