DMTA-10043-01EN, Rev. C, July 2016
Application Notes
65
In selecting a transducer for a corrosion application it is also necessary to consider the
temperature of the material to be measured. Not all duals are designed for high
temperature measurements. The chart above lists recommended temperature ranges
for the duals used with the 27MG Ultrasonic Thickness Gage. For other transducers,
consult the manufacturer. Using a transducer on materials whose temperature is
beyond the specified range can damage or destroy the transducer.
D794 5.0 Straight 7.2 mm
(0.283 in.)
0.75 mm to
50 mm
(0.030 in. to
2in.)
0°C to 50°C
(32 °F to
122 °F)
D797
D797-SM
2.0 Right angle
Straight
22.9 mm
(0.900 in.)
3.8 mm to
635 mm
(0.150 in. to
25 in.)
−20 °C to
400 °C
(−5°F to
752 °F)
D7226
D798-LF
7.5 Right angle 8.9 mm
(0.350 in.)
0.71 mm to
50 mm
(0.028 in. to
2in.)
−20 °C to
150 °C
(−5°F to
300 °F)
D798
D798-SM
7.5 Right angle
Straight
7.2 mm
(0.283 in.)
0.71 mm to
50 mm
(0.028 in. to
2in.)
−20 °C to
150 °C
(−5°F to
300 °F)
D799 5.0 Right angle 11.0 mm
(0.434 in.)
1 mm to
500 mm
(0.040 in. to
20 in.)
−20 °C to
150 °C
(−5°F to
300 °F)
MTD705 5.0 Right angle 5.1 mm
(0.200 in.)
1.0 mm to
19 mm
(0.040 in. to
0.75 in.)
0°C to 50°C
(32 °F to
122 °F)
Table 6 Transducer selection (continued)
Probe MHz Connector
Tip
diameter
Range
(steel)
Temperature
range
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