Measuring Higher Temperatures; Summary Of Cygnus Probe Types; Twin Element Probes; Single Element Probes - Cygnus 1 Ex Manual

Measuring Higher Temperatures

The standard polyurethane membrane fitted to the single element probes are
suitable for measuring surface temperatures up to 70°C (160°F).
For measuring higher temperatures Teflon membranes are available and suitable
for surface temperatures up to 150°C (300°F) with intermittent contact. Contact
Cygnus instruments to order Teflon membranes.
When measuring high temperatures limit the time the probe is in contact with the
hot surface to less than 4 seconds and ensure the probe has sufficient time
between measurements to cool down.

Summary of Cygnus Probe Types

Twin Element probes

Probe
Size
Type
T2C 12mm
0.5"
T5B 8mm
0.32"
T5A 5mm
0.2"
T7A 5mm
0.2"

Single Element probes

Probe
Size
Type
S2C 13mm
0.5"
S3C 13mm
0.5"
Cygnus 1 Ex Operating Manual
Range in
Frequency
(SE Mode)
2 MHz 2.5 to 250
0.1 to 10"
5 MHz 1.5 to 200
0.06 to 8"
5 MHz 1.0 to 150
0.04 to 6"
7.5 MHz 0.8 to 50 mm
0.03 to 2"
Range in
Frequency
2.25 MHz 3 to 250 mm
0.12 to 10"
3.5 MHz 2 to 150 mm
0.08 to 6"
Steel
Attenuative materials
mm Cast irons, Plastics
General purpose
mm Most metals
General purpose
mm Most metals
General purpose
Thinner metals
Steel
General purpose probe suitable
for most applications that can
use Multiple Echo
measurement.
Coated metals
Coated metals
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Typical Uses
Typical Uses