ULTRA 3
INSTRUCTION MANUAL
156
Velocity
P860 Sound Velocity
This parameter allows for the velocity of sound to be changed according to
the atmosphere the transducer is operating in. By default, the velocity is set
for sound travelling in air at an ambient temperature of 20 degrees
centigrade (at 1bar, atmospheric pressure).
Default = 342.72 m/sec.
P861 Cal. Dist 1
When Ultra Wizard = 1 Level/Volume
This parameter can be used to
re-calibrate
the
Sound Velocity
(
P860
),
when the acoustic beam from the transducer is travelling through mediums
other than air or when there are variations of temperature between the
transducer face and the material level.
To obtain best results calibration should be carried out when the level is as
near empty as possible and when any vapour present has stabilized.
With the material at a steady level,
view
the value of
P861
, which will
indicate the
current distance
as calculated by
Ultra
3 with respect to the
current value of P860. Physically
measure
the
distance
from the face of the
transducer
to the surface of the
material level
and enter this value, in
Measurement Units P104 and P860 will be automatically updated to
compensate for any difference between the displayed and entered values.
Summary of Contents for Ultra 3
Page 1: ...Ultra 3 Instruction Manual...
Page 14: ...ULTRA 3 INSTRUCTION MANUAL 14 EU Certificate of Conformity...
Page 18: ...ULTRA 3 INSTRUCTION MANUAL 18 The full dimensions of the enclosure are as shown below...
Page 22: ...ULTRA 3 INSTRUCTION MANUAL 22 Dimensions of the panel enclosure are as shown below...
