ADS Environmental Services Eureka2R QR 775019 A1 - Manual (Page 41)

ADS Eureka2R Leak Noise Correlator User Manual
37
Velocity and Filter Look-Up Tables
The Eureka2R uses the values in the table below as default values based on
the pipe material, pipe diameter, and type of sensor used. These defaults may
be adjusted as described in this manual. The abbreviations representing the
individual materials are used by Eureka. When using an Accelerometer -
Hydrophone sensor combination, select the default filter settings for
Hydrophone - Hydrophone.
AC Diameter in Inches (mm) Velocity in Feet Per
Second (m/s)
Filters (Hz)
Mic/Mic
Filters (Hz)
Hydro/Hydro
Asbestos <3.94 (<100) 3543 (1080) 100 to 1000 25 to 500
Cement 3.94 to 7.87 (100 to 200) 3314 (1010)
8.27 to 13.78 (210 to 350) 3215 (980)
14.17 to 19.69 (360 to 500) 3150 (960)
20.08 to 31.50 (510 to 800) 3051 (930)
>31.50 (>800) 2953 (900)
CI Diameter in Inches (mm) Velocity in Feet Per
Second (m/s)
Filters (Hz)
Mic/Mic
Filters (Hz)
Hydro/Hydro
Cast Iron <3.94 (<100) 4199 (1280) 100 to 2000 25 to 1000
3.94 to 7.87 (100 to 200) 4003 (1220)
8.27 to 11.81 (210 to 300) 3806 (1160)
12.20 to 15.75 (310 to 400) 3675 (1120)
16.14 to 23.62 (410 to 600) 3609 (1100)
24.02 to 31.50 (610 to 800) 3543 (1080)
>311.50 (>800) 3445 (1050)
CON Diameter in Inches (mm) Velocity in Feet Per
Second (m/s)
Filters (Hz)
Mic/Mic
Filters (Hz)
Hydro/Hydro
Concrete <19.69 (<500) 3806 (1160) 100 – 1000 25 - 500
19.69 to 29.53 (500 to 750) 3642 (1110)
29.92 to 39.37 (760 to 1000) 3478 (1060)
39.76 to 59.06 (1010 to 1500) 3379 (1030)
>59.06 (>1500) 3281 (1000)