Senseca XPT800 handleiding
Handleiding
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XPT800 – Sound Level Meter and Spectrum Analyzer
V1.0
Page 17 of 124
For more details regarding the technical specifications of the microphones that can be combined with the
XPT800 sound level meter, please consult the relevant manuals or contact the Manufacturer.
4.6.2 Preamplifier
The MP800 preamplifier performs the task of amplifying the weak signal provided by the micro-
phone. The peculiar dynamic performance combined with low noise enables the detection of both
very low and high level sound signals using a single measurement range. The MP800 preamplifier is
also equipped with a CTC (Capacitive Transducer Calibration) calibration device, which allows the
drifts of the entire measurement chain, including the microphone, to be kept under control by means
of a charge-sharing scheme.
Available models are listed in chapters “5.2 Standard configuration” on page 27 and “5.3 Options and
accessories” on page 29.
Heater
The MP800 preamplifier is equipped with an internal heater, which can be activated from the GUI. Use
of the heater is recommended to reduce condensation on transduction chain components in outdoor
uses with high humidity levels and low temperatures.
Automatic detection
A chip inside the preamplifier stores certain information about the transduction chain (e.g., the pre-
amplifier serial number) that is automatically detected by the XPT800 sound level meter, allowing
the user to use different transduction chains without the need for setting operations.
4.6.3 Instrument
The signal from the preamplifier reaches the input of the A/D converter. The analog signal is converted
into numerical form by the A/D. The exceptional resolution of the converter, which extends over a
range of more than 140 dB, allows high accuracy to be maintained over a single measurement range of
about 125 dB where digitization error is negligible. In the DSP, levels with broadband frequency
weightings (A, B, C, and Z) and levels with both octave and third-octave constant percentage bandwidth
weightings are calculated in parallel. Peak levels are also calculated. The levels calculated by the DSP
are transmitted to the microprocessor for further processing, display, storage.
The microprocessor supervises all instrument processes: management of the electrical calibrator,
memory, TFT touch display, keyboard, network and communication devices (LAN, Wi-Fi, 4G), GPS,
codec, and interfaces (RS232C and USB).
Bekijk gratis de handleiding van Senseca XPT800, stel vragen en lees de antwoorden op veelvoorkomende problemen, of gebruik onze assistent om sneller informatie in de handleiding te vinden of uitleg te krijgen over specifieke functies.
Productinformatie
| Merk | Senseca |
| Model | XPT800 |
| Categorie | Niet gecategoriseerd |
| Taal | Nederlands |
| Grootte | 27123 MB |
