LEGRAND 3440 - Page 301

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3455
Description
The outside temperature can be measured by means of this radio probe. The data is then
sent through radio waves to the receiving interface, and to the temperature control
system. 99-zone or 4-zone central units can simply display this data. The automations
are reserved just to the 99-zone central unit and can activate controls on the basis of
exceeding particular temperature thresholds set by means of the TiThermo software.
These automations also allow the management of enhanced systems with combination
boiler. Up to nine temperature probes can be installed in a system.
The radio probe is practically maintenance-free and is supplied by a small solar cell
installed on the device. Special care should be taken to install the solar cell in positions
which can guarantee sucient irradiation.
For applications in badly lit or dark places, where the solar cell cannot supply the
device, power can be supplied by means of a Lithium battery (type LS14250/1/2AA),
to be inserted in the battery compartment. To guarantee the operation of the
battery-supplied probe the battery should be replaced at least every 5 years.
The eective battery lifetime depends on the “data updating time” setting (see
conguration section).
On the probe printed circuit there is a small key to be used during programming and
when the receiving interface is acquiring the radio probe details.
Front view
Legend
1. Temperature sensor: to measure the temperature
2. Transmission key: allows the association between radio probe and receiving interface
3. Compartment: for lithium battery
4. Solar cell: supplies the entire device
5. Jumpers: to set the temperature update interval
6. IP65 enclosure
Technical data
- Power supply: - solar cell
- 3.6 V / 1.1Ah type LS14250/1/2AA lithium battery
- Operating temperature: (-25) – (+40) °C
- Measurement eld: (-20) – (+60) °C
- Radio frequency: 868 MHz
- Transmission power: < 10 mW
- Range: 70 m in free eld (metal and reinforced concrete walls reduce the range);
- Protection index: IP65
CE CONFORMITY
89/336/EWG – Electromagnetic compatibility
R&TTE 1999/5/EC – Directive on radio and telecommunication devices
CONFORMITY TO REGULATIONS
ETSI EN 301 489-3
ETSI EN 300 220-3
EN 60669-2-1
EN 60950
EN 60065
EN 60529
Side view
Probe installation
NOTE: the probe must be installed in a position away from direct sunlight, as
this may cause a false temperature reading. Avoid both excessively shady and
excessively bright areas.
MQ00182-c-EN 29/04/2014
Radio outdoor
temperature probe