Copyright © Sigicom AB 2020
64
Threshold range:
0.04 – 22 mm/s.
47. SBR-B
Level and frequency ranges:
20 mm/s, RMS, 1-80 Hz.
Filtered according to ISO 2631-2,
time constant 125 ms.
Max resolution in presentation: 0.005 mm/s RMS and 3 significant
digits.
Threshold range:
0.04 – 15 mm/s.
48. Toronto bylaw 514
Level and frequency ranges:
250 mm/s, 2-250 Hz.
Max resolution in presentation: 0.05 mm/s and 3 significant digits.
Threshold range:
0.4 – 220 mm/s.
49. Toronto bylaw 514
Level and frequency ranges:
250 mm/s, 1-100 Hz.
Max resolution in presentation: 0.05 mm/s and 3 significant digits.
Threshold range:
0.4 – 220 mm/s.
51A. ISEE Seismograph
ISEE - Performance specifications for blasting seismographs.
Level and frequency ranges:
10 in/s, 2-250 Hz.
Max resolution in presentation: 0.002 in/s and 3 significant digits.
Threshold range:
0.02 – 9 in/s.
51B. ISEE Seismograph
ISEE - Performance specifications for blasting seismographs.
Level and frequency ranges:
1 in/s, 2-250 Hz.
Max resolution in presentation: 0.0002 in/s and 3 significant digits.
Threshold range:
0.002 – 0.9 in/s.
53A. Geophone
Unfiltered geophone signal. Upper frequency limit 500 Hz.
Level and frequency ranges:
250 mm/s, 5-500 Hz.
Max resolution in presentation: 0.05 mm/s and 3 significant digits.
Threshold range:
0.4 – 220 mm/s.
