User manual

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Appendix
Output (Refer IEC61672-1 paragraphs 5.16.1, 9.2.5p)
The instrument provides no electrical analog or digital outputs
for measurements.
Typical Time Interval Needed to Stabilize after Changes in
Environmental Conditions (IEC61672-1, 6.1.2, 9.3l)
Recommended time interval for stabilizing the sound level me-
ter after changes in environmental conditions, prior to perform-
ing any measurements:
Change in the environmental condition Time Interval
Temperature ±5 °C 15 minutes
Temperature ±20 °C 30 minutes
Air pressure ±5 kPa 15 seconds
Humidity ±30% 15 minutes
The time intervals apply, for instance, after moving from a cold
into a warm room, and assume that combinations of air tem-
perature and relative humidity do not yield a dew point greater
than +39 °C or less than –15 °C.
No Limit on Operational Environment
(Refer IEC61672-1 paragraphs 6.3.2, 9.2.7a)
There are no restrictions in place for parts or components,
which would limit the operational environment.
Exposure to Electrostatic Discharges
(Refer IEC61672-1 paragraphs 6.5.2, 9.2.7b)
Heavy electrostatic discharges directly to the instrument’s
connector or keyboard may interrupt the operation. The XL2-TA
either switches off or freezes at the last valid measurement
value. In such a case re-start the instrument. If the data logging
had been active prior the interrupt, the log file may contain a
gap. However, the acquired results can be identified correct-
ly as each one is saved together with its own individual time
stamp.
Exposure to AC Power and Radio Frequency Fields
(Refer IEC61672-1 paragraphs 6.6.1, 9.2.7c)
The sound level meter complies with the requirements of the
standard IEC61672-1:2003 regarding immunity against high
frequency fields or mains power fields from 50 to 60 Hz.