Senseca XPT800 handleiding
Handleiding
Je bekijkt pagina 52 van 124
XPT800 – Sound Level Meter and Spectrum Analyzer
V1.0
Page 52 of 124
9 Getting started: Main Functions
The most frequently used functions are described below; for a complete discussion of the instrument op-
eration and settings, see the section “10 Advanced functions” on page 66.
9.1 Calibration
Sound level meter calibration (adjustment) should be carried out periodically, normally before and after
each measurement session, in order to ensure the validity of the measurements made by the sound lev-
el meter, as the sensitivity of the microphone and the response of the electronic circuits may vary
slightly over time or may be affected by environmental conditions such as temperature, atmospheric
pressure and humidity.
Acoustic calibration also includes internal electrical calibration. Electrical calibration enables the
alignment of electrical parameters in the measurement chain
Info
•
More information on calibration settings can be found in the chapter “10.1 Setting the cali-
bration parameters” on page 66 “.
•
Before starting the calibration procedure, carefully read the calibrator manual provided
with the calibrator.
Notice!
•
It is recommended to use the model HD2020 calibrator, supplied upon request
•
Another class 1 calibrator conforming to IEC60942 and with 1/2" cavity can be used, after
verifying compatibility and technical specifications.
•
When using class 1 calibrators alternative to the HD2020 model, the nominal emission
level stated in the calibration certificate must be verified, and the "Cal_Level" parame-
ter in use in the menu related to the calibration setup must be adjusted. If stated by
the manufacturer, corrections per load volume should be considered.
Before performing an acoustic calibration:
•
make sure that the environment in which you are operating is suitable: no sudden noise, no vibra-
tion are present on the supporting surface, thermal stability of the instrument;
•
make sure that the microphone and especially the microphone diaphragm are clean; in case a
check of the condition of the microphone capsule is to be performed, refer to “14.2 Microphone
cleaning (microphone diaphragm)” on page 94;
•
in case of accessories installed on the instrument, such as a windshield if any, or if you want to
customize the calibration settings, refer to section “10.1.1 Setup” on page 66;
•
make sure that there is no measurement in progress; if it is, it must be stopped before starting
calibration.
To perform a calibration:
1
Turn off the sound calibrator.
2
Carefully insert the microphone all the way into the cavity of the calibrator.
3
Turn on the XPT800 sound level meter.
4
Follow any specific recommendations in the calibrator manual in this regard.
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Productinformatie
| Merk | Senseca |
| Model | XPT800 |
| Categorie | Niet gecategoriseerd |
| Taal | Nederlands |
| Grootte | 27123 MB |
