OPERATION

Precision ^TM Instruction Manual OPERATION (Contd.) A stopwatch should be used for noting the time. We recommend the Precision Time-It (Cat. No. 69240) that is solid- state with an easy to see LED readout. The Time-It is a table top timer; and with the accessory foot switch (Cat. No. 69242), one can keep both hands free for the operation of the penetrometer. CAUTION: In operating the thumb release lever, grasp the finger grip firmly with the forefinger. With the thumb, quickly depress the thumb release lever as far down as it will go. HOLD THE THUMB RELEASE LEVER DURING THE SPECIFIED TIME OF THE TEST. At the end of this time, release it quickly, allowing it to lock the test rod instantly. NOTE Before releasing thumb release lever, be sure that the dial pointer is set at zero. If it is not, adjust the "zero adjust nut" (Item 38) until dial pointer is pointing to zero. Reading Penetration: To read the depth of penetration, push down the depth gauge rod gently, as far as it will go. The dial reading now indicates the depth of penetration directly in tenths of millimeters. For example: If the pointer comes to rest at the fourth mark past the 270 point, the depth of penetration is 274 tenth-millimeters, or 27.4 millimeters. With the Precision Universal Penetrometer, penetration measurements can be made to a total depth of 62 mm on a single reading. On depths greater than 38 mm, the dial pointer moves past the zero position for a portion of another revolution. Merely add the fractional revolution to determine the total depth of penetration. Return the dial pointer to zero as directed in the preceding note. If the original zero setting has been accurate, the dial pointer will return exactly to zero and subsequent readings will check against standard gauge blocks. Exclusive Precision® Warranty PRECISION SCIENTIFIC warrants its products against defects in material or in workmanship, when used under appropriate conditions and in accordance with appropriate operating instructions for a period of no less than one (1) year from the date of delivery of the products. Sole obligation of PRECISION SCIENTIFIC shall be to repair or replace at our option, FOB factory or locally, without charge, any part(s) that prove defective within the warranty period, provided the customer notifies PRECISION SCIENTIFIC promptly and in writing of any such defect. Compensation for labor by other than PRECISION SCIENTIFIC employees will not be our obligation. Part(s) replacement does not constitute an extension of the original warranty period. PRECISION SCIENTIFIC HAKES NO WARRANTY OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, OR ANY OTHER WARRANTY, EXPRESSED OR IMPLIED, AS TO THE DESIGN, SALE, INSTALLATION, OR USE OF ITS PRODUCTS, AND SHALL NOT BE LIABLE FOR CONSEQUENTIAL DAMAGES RESULTING FROM THE USE OF ITS PRODUCTS. PRECISION SCIENTIFIC will not assume responsibility for unauthorized repairs or failure as a result of unauthorized product modifications, or for repairs, replacements, or modifications negligently or otherwise improperly made or performed by persons other than PRECISION SCIENTIFIC employees or authorized representatives. While our personnel are available to advise customers concerning general applications of all manufactured products, oral representations are not warranties with respect to particular applications and should not be relied upon if inconsistent with product specifications or the terms stated herein. In any event, the terms and conditions contained in PRECISION SCIENTIFIC formal sales contracts shall be controlling; and any changes must be in writing and signed by an authorized executive of PRECISION SCIENTIFIC. All defective components will be replaced without charge one (1) year from the date of delivery. There will be no charge for labor if the apparatus is returned to the factory prepaid. Conditions and qualifications of the warranty statement shall prevail at all times. Precision® is a registered trademark of Precision Scientific Inc. -3-