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SVANTEK 977W User Manual
Note:
When measurement is waiting for the level trigger the “trigger
level” icon appears alternatively with the „play” icon.
or
Gradient type trigger
When
Grad +
is selected, the triggering condition is checked every 0.5
millisecond of the measurement. The measurement is recorded only when the
result value (
Source
) has a level greater than that determined by the selected
decibel
Level
and the gradient of the signal is greater than determined in the
Gradient
position. Otherwise the measurement result is skipped.
External type trigger
When
External
is selected, the triggering is done by the signal on the
I/O
socket.
In this case, it is necessary to set up the
I/O Mode
parameter as
Digital In
(
path:
<
Menu> / Instrument / Multifunction I/O
). In the other case the measurement
result is skipped.
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
It is assumed that 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 24 dB to 136 dB in sound modes and from 64dB (1.585mm/s2) to
176dB (631 m/s2) in vibration modes. 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 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>
