Svantek SV 977D User Manual

212
SV 977D User Manual - Appendixes
Table B.8. Measurement trigger parameters
Word
number
Name
Comment
0
0nn2Bh
2Bh = block identifier,
0nnh = block length in words.
1
TriggerMode
trigger mode:
0 – measurement without triggering
1 – positive slope (Slope +)
2 – negative slope (Slope –)
3 – positive level trigger (Level +)
4 – negative level trigger (Level –)
6 – positive gradient (Grad +)
7 – external pulse
2
TriggerSource
trigger source (parameter relevant only to modes in which triggering
is related to signal level):
0 – triggering RMS/Leq level from the first profile
- Other remaining values.
3
TriggerLevel
trigger threshold value in 0.01 dB format (parameter relevant only to
modes in which triggering is related to signal level)
4
TriggerGrad
trigger gradient value in 0.01 dB/ms format (parameter relevant only
to „Grad+” mode)
5
reserved
6
reserved
7
TriggerStep
trigger time check in 0.1ms format
…
reserved
Table B.9. Logging triggering parameters
Word
number
Name
Comment
0
0nn2Ch
2Ch = block identifier
0nnh = block length in words
1
TriggerMode
triggering mode:
0 – logging without triggering,
1 – positive slope (Slope +) - RT60 Impulse mode only
3 – positive level (Level +)
4 – negative level (Level –)
5 – Decay- RT60 Decay mode only
2
TriggerSource
triggering source:
0 – triggering by RMS/Leq level from the first profile
– remaining values reserved
3
TriggerLevel
trigger threshold value in 0,01 dB format
4
reserved
5
TriggerPre
number of records logged before trigger condition occurred
6
TriggerPost
number of records logged after trigger condition disappears
…
reserved

Svantek SV 977D Specifications

General

Brand	Svantek
Model	SV 977D
Category	Measuring Instruments
Language	English