The 2047U/C MKII combines the features of the 4020 standard stethoscope with those of an ultrasonic (sounds higher in frequency than the
ear can hear... 35 to 45 Kilohertz or KHz) detector. Many watches and clocks generate a considerable amount of ultrasonic energy that will travel a great distance if
unobstructed. If the watch or clock can be "seen" by the ultrasonic probe, detection ranges on the order of 1 to 20 feet are not uncommon. The ultrasonic probe is
highly directional and effectively tunes out background noise. The 2047U/C can also detect many types of gas enhanced IEDDs. The system consists of an amplifier/detector assembly, contact probe, ultrasonic probe, special 2,000 ohm headset and carrying case.
Optional 20-foot contact probe extension cable, 20-foot ultrasonic probe extension cable, non-attenuated and attenuated recorder cables and other accessories are also available.
TO OPERATE AS A STANDARD STETHOSCOPE:
TO OPERATE AS ULTRASONIC STETHOSCOPE:
The unit has a RECORDER output jack that provides line level audio into 10,000 ohms. This jack is run, using a mini-plug to mini-plug cable, to the AUX (AUXILIARY) input on a tape recorder. If the recorder does NOT have an AUX jack it is necessary to use a 100:1 attenuating cable. The attenuator cable is then plugged into the MIC or MICROPHONE jack on the recorder.
A single 9 volt Alkaline battery powers the 2047U/C and provides approximately of 70 hours ON time. To replace the battery, loosen the two silver screws on the sides of the unit one or two turns. Carefully lift off the back cover, remove the old battery (noting its position), replace it with a fresh Alkaline battery and replace the back cover. Be careful not to pinch the battery connector leads with the back cover. Tighten the two screws but do not over-tighten. Remove the battery during prolonged periods of storage. As with any piece of sophisticated electronic equipment, do not store in extreme heat or humidity.
NOTE: Television sets generate frequencies that fall within the detection range of the ultrasonic probe, therefore, do not operate the 2047U/C closer than 100 feet from an operating TV set, monitor, or computer display.
|OPTIONAL ACCESSORY: 2049RT Stethoscope Transmitter|