3CANNON ® D155 Density Meter Instruction & Operation ManualVersion 1.1c – March 2017; CANNON® Instrument Company2139 High Tech Road • State College, PA • 16803 • USA1-2. About the manualPlease keep this manual near your system so that you can easily access to the necessary informationyou are looking for while operating or preparing for measurement.The examples below represent the three types of messages (warning, caution, and note) encounteredthroughout the manual.1. Where there exists a danger of physical injury or even possible death:Warning!There exists the danger of physical injury or even possible death if theinstruction is disregarded.2. Where there exists a danger of property damage:Caution!There exists the danger of property damage if the instruction isignored.3. When there exists a possibility of failure of instrument performance:Note:There exists the possibility of failure of instrument performance.If ignored, warranty may not be covered.* It is prohibited to copy or reproduce in part or in whole this manual without authorization by copyright.* If you should find any part in this manual not clear to understand or missing article, contact your localdealer or sales representative.* Manufacturer will not be liable for any loss or damage directly or indirectly caused by use of theinstrument or its consequences.* This manual pertains directly to the D155. For details relating to other accessories or equipmentplease refer to the appropriate manufacturers supplied documentation..