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› Monitoring<br />
68<br />
A5000MAW<br />
SUPPORTED INVESTIGATION<br />
Measure of conduttance<br />
A5000MAW thermo-flow meter for heat<br />
transmission measurements on site<br />
stands out for utmost accuracy in data<br />
acquisition (24-bit resolution) combined<br />
to the great versatility and simplicity of<br />
use. Through the use of four probes to<br />
measure contact temperature and a flow<br />
plate connected wirelessly to A5000MAW<br />
central unit (connection through remote,<br />
totally independent data acquisition and<br />
transmission unit), the instrument takes<br />
the measurement of the heat transmission<br />
values on site of the opaque walls of<br />
entire buildings, as requested by recent<br />
laws on energy efficiency. The data acquisition<br />
device is equipped with graphic<br />
display for the real time visualization<br />
of the trend of the data acquired, keyboard<br />
with charge-transfer technology<br />
and removable S.D. memory for storing<br />
and following elaboration of the measurements<br />
acquired. The recording methods<br />
can be set using the software in an<br />
easy and quick manner, to carry out surveys<br />
with utmost accuracy and simplicity.<br />
A5000MAW thermo-flow meter is envisaged<br />
to carry out medium and long-term<br />
surveys and is suitable to measure environmental<br />
parameters on site and in the<br />
laboratory. The unit can also manage up<br />
to two optional couples of remote transmitting<br />
units MW-1; MW-2 so as to record<br />
the heat transmission parameters in 3<br />
different measurement areas of a building,<br />
at the same time. The data acquired<br />
is downloaded on PC and elaborated with<br />
(GT LAB) software for the direct calculation<br />
of coefficient K (heat transmission)<br />
and of the parameters linked to the thermal<br />
insulation of the building, through<br />
the progressive average method. The instrument<br />
complies with ISO 9869 standard.<br />
Fields of use: Acquisition of environmental<br />
parameters on existing buildings (prior<br />
to restructuring activities) in order to determine<br />
the actual insulation need which<br />
falls within the parameters set forth by<br />
law, and on new buildings (after restructuring<br />
activities) to evaluate the quality<br />
of the work performed.<br />
SPECIFICATIONS<br />
Recording:<br />
• Recording intervals: from 10 seconds to 12<br />
hours<br />
• Watch: integrated with buffer battery<br />
• Recording support: removable SD memory<br />
up to 2 GB<br />
• Data format: TSV, BMP<br />
• Measurement type: relative or absolute<br />
Thermometers:<br />
• Total number: 4<br />
• Temperature range: -40 - +110°C,<br />
• Precision: ±0.2°C<br />
Thermo-flow plate:<br />
• Sensitivity: 50μV/Wm2 (typical)<br />
• Temperature range: -30 - +70°C<br />
• Diameter: 80mm<br />
• Thickness: 5mm<br />
• Measured flow: bidirectional<br />
Radio:<br />
• Frequency: 2.4GHz<br />
• Transmission power: 0dBm (14dBm upon<br />
request)<br />
• Receiver’s sensibility: –96dBm<br />
• Protocol: IEEE802.15.4<br />
• Exposed capacity: 300m (1000m with power<br />
14dBm)<br />
• Capacity in buildings: 40m<br />
WLS-1 modules for connecting to sensors:<br />
• Transmission power: 0dBm (14dBm upon<br />
request)<br />
• Converters’ resolution: 24 bit<br />
• Maximum distortion: 0.0005%<br />
• Maximum sampling: 0.5Hz<br />
• Maximum range of inlet signal: 0-2.5V<br />
• Channels: 2 for MW-2, 3 for MW-3<br />
• Power supply: independent, with batteries<br />
AA type rechargeable and replaceable<br />
(7.2V – 2.5Ah)<br />
• Operative autonomy: 10 days<br />
General data:<br />
• Keyboard: 24 charge-transfer buttons<br />
• Display: mono-chromatic graphic LCD 320 x<br />
240 pixel<br />
• Measures display: numeric and graphic<br />
• Instrument’s power supply: batteries AA<br />
type rechargeable and replaceable (12V –<br />
2.5Ah). Envisaged for external power supply<br />
• Typical consumption: 40mA monitor off -<br />
90mA monitor on<br />
• Container: anti-crash, in copolymers of polypropylene<br />
• Operating temperature: 0-60°C<br />
• Sizes and weight: L. 270 x H. 120 x P. 246<br />
mm, 3 Kg<br />
mae-srl.it/go/A5000MAW