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31
SVANTEK 974 User Manual
Note: When measurement is waiting for the gradient or external
trigger the “trigger” icon appears alternatively with the „play” icon.
Source of the triggering signal
Only one measured result can be used as a source of the triggering signal in the
Level Meter
mode, namely the
output signal from the RMS detector coming from the first profile which is denoted here as
Leq(1)
. This position
does not become active (it is not displayed inversely) and the text stated here remains unchanged.
Level of the triggering signal
The level of the triggering signal (
Level
) can be set with 1 dB step steps in the
range from 64dB (1.585mm/s
2
) to 176dB (631 m/s
2
). The
Level
value of the
triggering signal refers to the instantaneous value of the RMS result from the first
profile calculated during the period depending on selected
Detector
(path:
<Menu> / Measurement / Profiles).
Speed of the triggering signal changes
This position appears when the
Grad+
trigger is chosen. The speed of change
of the triggering signal (
Gradient
) can be set within the range from
1 dB/ms
to
100 dB/ms
.
5.3
Setting up the parameters for profiles
– Profiles
In the
Profiles
sub-list, the following
parameters
can
be
programmed
independently for each user defined profile:
weighting filter
(
Filter
) and RMS detector type
(
Detector
).
<ENT>
Weighting filter selection
▪
acceleration measurements:
HP
,
HP1
,
HP3
,
HP10
,
Wh
,
▪
velocity measurements:
Vel1
,
Vel3
,
Vel10
and
VelMF
,
▪
displacement measurements:
Dil1
,
Dil3
and
Dil10
.
RMS detector selection
The following RMS detectors are available in the instrument:
100ms
,
125ms
,
200ms
,
500ms
,
1.0s
,
2.0s
,
5.0s
,
10.0s
.