Technical data
3
Operating fluid
3.6
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3.6
Operating fluid
The operating fluid used depends on the ambient temperatures at the
place of installation. For information on the dependence of the
operating fluid on the ambient temperatures, see the section
Operating conditions (
⇒
section Ambient temperatures).
3.7
Airborne sound emissions
The A-rated emission sound pressure level for all ELHY
®
thrusters is
55 dB (A). This value was determined using an integrated sound
pressure level measuring unit in accordance with DIN 45633 under
the following measurement conditions:
The ELHY
®
thruster (measurement object) ran continuously.
The measurement object was on a table around 0.8 m above the
ground
The measurement microphone was 1.6 m above the ground.
The diagonal gap between the measurement microphone and
the measurement object was 1 m.
Содержание ELHY EB 630
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