Svantek SV 35A User Manual - page 7
7
SV 35A User Manual
Warning: In the case of water condensation inside calibrator SV 33A can
generate significantly lower acoustic pressure then specified. Condensation
can appear when cold device is moved to the warmer environment. In such
a case certain acclimatization time is required.
For the room temperature environment (ca. 20 deg C) the recommended
acclimatization time is approximately as follows:
30 minutes for the initial calibrator temperature -10 deg C
15 minutes for the initial calibrator temperature 0 deg C
2 minutes for the initial calibrator temperature +10 deg C
Before reaching acclimatization time SV33A cannot be used as a reference
sound source!
Picture 4. The top view of the SV 35A calibrator with one diode on
The diodes blinking alternately indicate the low voltage of the battery. It is recommended
to not use the SV 35A calibrator in this state as the generated level may differ from the declared
values.
Notice: Replace the batteries, when diodes blink alternately.