Checkline TI-CMXDL - Manual (Page 24)

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Material sound velocity sound velocity
in/us m/s
Aluminum 0.2510 6375
Beryllium 0.5080 12903
Brass 0.1730 4394
Bronze 0.1390 3531
Cadmium 0.1090 2769
Columbium 0.1940 4928
Copper 0.1830 4648
Glass (plate) 0.2270 5766
Glycerine 0.0760 1930
Gold 0.1280 3251
Inconel 0.2290 5817
Iron 0.2320 5893
Cast Iron 0.1800 (approx) 4572
Lead 0.0850 2159
Magnesium 0.2300 5842
Mercury 0.0570 1448
Molybdenum 0.2460 6248
Monel 0.2110 5359
Nickel 0.2220 5639
Nylon 0.1060 (approx) 2692
Platinum 0.1560 3962
Plexiglas 0.1060 2692
Polystyrene 0.0920 2337
PVC 0.0940 2388
Quartz glass 0.2260 5740
Rubber vulcanized 0.0910 2311
Silver 0.1420 3607
Steel (1020) 0.2320 5893
Steel (4340) 0.2330 5918
Steel Stainless" 0.2230 5664
Teflon 0.0540 1372
Tin 0.1310 3327
Titanium 0.2400 6096
Tungsten 0.2040 5182
Uranium 0.1330 3378
Water 0.0580 1473
Zinc 0.1660 4216
Zirconium 0.1830 4648
Acoustic Velocity Table 10.0 ADDITIONAL FEATURES OF THE TI-CMXDL
10.1 High Speed Scan
The High Speed Scan feature of the TI-CMXDL increases the overall repetition rate to a
maximum of 140Hz with a high speed screen refresh rate of 25 times a second. This
feature enables a user to make scanned passes over an arbitrary length of the test materi
while still maintaining a reasonable representation of thickness over the scanned area or
region. This feature can be used in conjunction with High and Low alarm limits features
to dynamically keep track of both values. The feature is typically used to provide a bette
representation of the area scanned, by taking more readings at a faster rate repetition rat
The procedure to use the SCAN MODE feature is outlined below:
Using the Scan Mode
1. Press the MENU key once to activate the menu items tab.
Press the MENU key multiple times to tab right and the ESC
key multiple times to tab left until the UTIL menu is highlighted
and displaying the submenu items.
2. Use the UP and DOWN arrow keys to scroll through the sub
menu items until SCAN MODE is highlighted.
3. Use the LEFT and RIGHT arrow keys to toggle the
SCAN MODE on/off.
4. Press the MEAS key to return to the measurement screen.
10.2 Alarm Mode
The Alarm Mode feature of the TI-CMXDL provides the user with a method of setting t
erances, or limits, for a particular application requirement. This feature may be used for
variety of applications to verify the material is within the manufacturer specifications.
There are two limits, or alarm values, that can be setup in the TI-CMXDL – ALARM LO
and ALARM HIGH limits. However, the user may choose to activate and utilize only on
of the limit values, depending on their specific application requirements. The procedures
use the ALARM MODE feature are outlined below:
Toggle Alarm (on/off)
1. Press the MENU key once to activate the menu items tab.
Press the MENU key multiple times to tab right, and the
ESC key multiple times to tab left, until the UTIL menu is
highlighted and displaying the submenu items.
2. Use the UP and DOWN arrow keys to scroll through the
sub menu items until ALARM is highlighted.
3. Use the LEFT and RIGHT arrow keys to toggle the
ALARM on/off/audible.
4. Continue on to the next section “Setting the Alarm Low
Limi.t."
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