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PREG-TONE® SERIES 6 INSTRUCTIONS Your new PREG-TONE is set up for swine and must be changed if it is to be used on other animals. See Animal Selection Chart. The PREG-TONE emits high frequency sound waves called ultrasound from the transducer (“probe”). The ultrasound waves travel into the body and reflect (echo) back from tissue and fluid surfaces to the probe. The reflected sound waves are processed by the instrument to determine if there is amniotic fluid (“fluid”) in the uterus. The presence of fluid in the uterus indicates pregnancy. If fluid is detected, a continuous tone is produced. For purposes of illustration, the following instructions are based on swine. Additional instruction pages may be included for certain other animals. All instructional material is posted on our Internet site, http://www.rencocorp.com . Testing may begin between 15 and 30 days after breeding. The PREG-TONE has been clinically proven to be 100% accurate 30 days after breeding. At 65 to 70 days after breeding the litter displaces the fluid and the testing accuracy decreases. Accurate testing is the result of placing the probe on the proper spot on the sow, at the right time, making good skin contact, aiming the probe in the proper direction, and maintaining the instrument in proper working condition. A. BEFORE TESTING Connect the cable to the PREG-TONE and probe, twisting the barrels on each connector to lock. Turn the instrument on. The red light should be lit. If not, recharge battery (about 16 hours). See Section D if the light does not stay on after a complete charge. B. TESTING PROCEDURE You must use a contact fluid, such as lightweight oil, (mineral oil, cooking oil etc.), in order to make good contact between skin and probe. It is best to quiet and isolate the sow during the test. Confinement is not required, but the sow should stand while you approach and place the probe on her. You may need 15 to 20 seconds to complete a test at first, but with practice you can get good test results in as little as 5 seconds. Turn the instrument on and put contact oil on the sow (or probe). Place the transducer on the RIGHT SIDE of the sow, 2 inches (5cm) in front of the rear leg and 1 inch (2.5cm) above the nipple line (See diagram). Work the probe into the oil and aim it approximately 45° forward and 45° to the side. The procedure is to scan across the uterus to detect any fluid that may be there. You will first hear an intermittent beeping when you make good skin contact. This means that ultrasound is entering the sows body and returning properly. The PREG-TONE will return a continuous tone (the pregnant signal) if it detects fluid. The contact tone (intermittent beeping) means that the sow is open. If the sow tests open on the right side, repeat the test on her left side. Remember to put more contact oil on the sow or probe for each test. Ultrasound will not pass through air. Use of sufficient contact oil to displace air bubbles is extremely im
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C. TESTING PROBLEMS 1. NO LIGHT: If red light does not stay on when instrument is turned on, battery power is too low. Connect the RENCO charger and charge for at least 16 hours. Make sure that the charger connector is snapped into place and the power switch is OFF. If that doesn't help, try another wall socket. If it still only operates for a short period of time between charges, do as follows: Disconnect charger from instrument. Leave the power switch ON for 12 hours. Turn power switch OFF and charge for at least 24 hours. Repeat cycle up to 3 times. If the problem still exists, the...
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