Radio Frequency Interference
The TRIA
®
II was tested for immunity to electromagnetic interference at a level of 3V/meter.
Interference during normal operation may occur in the presence of fields stronger than 3V/
meter. If this occurs, try to increase the distance between the TRIA
®
II and the source of
interference. Contact CooperSurgical for more information.
Diagnostic Codes – Contact CooperSurgical’s Service Dept. at 1-800-444-8456
1 – Temperature too low 5 – 5 Volt Supply too low
2 – Temperature too high 6 – 5 Volt Supply too high
3 – Reference Voltage too low
7 – Battery Voltage too low
4 – Reference Voltage too high
8 – Battery Voltage too high
Reference materials for Obstetrical and Peripheral Vascular testing:
Handbook of Fetal Heart Rate Monitoring; Julian T. Parer, 1997
Doppler Ultrasound and Its Use In Clinical Measurement; Peter Atkinson and John P.
Woodcock, 1982
Noninvasive Diagnosis of Peripheral Vascular Disease; W. Robert Felix, Jr., 1988
Current Noninvasive Vascular Diagnosis; Ali F. Aburahma, Edward B. Diethrich, 1988
Accessories
To order accessories (gel, batteries, probe cleaner, cables), please contact CooperSurgical.
Probes
TRIA
®
II ultrasound transducers were designed to meet your specific applications needs.
Each probe has been ergonomically designed for comfort while providing excellent
maneuverability for locating the fetus or vascular target.
Each probe is carefully measured and tested to ensure it meets exacting performance
standards.
2 MHz – Late term obstetrical examination. This probe frequency is typically used during
the last trimester for deep fetal positions associated with larger women. Waterproof
versions of the 2 MHz probe are available.
3 MHz – Early and general-purpose obstetrical examination. This probe frequency is a
general use model ideal for most stages of fetal examination. Fetal heart sounds can be
heard as early as 12 weeks and sometimes sooner depending on the position and size of
the fetus.
5 MHz – This standard “pencil” style probe is an excellent vascular tool for locating deep
specific vessels in the peripheral vascular system. The narrow grip and small face of the
probe make it ideal for maneuvering for maximizing the signal.
8 MHz – This standard “pencil” style probe is an excellent vascular tool for locating shallow
specific vessels in the peripheral vascular system. The narrow grip and small face of the
probe make it ideal for maneuvering for maximizing the signal. Sterilizable versions of the
8 MHz probe are available.
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