The Bal-CX220 analytical balance comes with various advanced features to enable highly precise weighing with 0.1mg (0.0001g) readability. It's fully automatic internal calibration self-calibrates when ambient temperature changes by a specific value or once the user-defined time interval has elapsed. The balance's statistical calculation function display and output statistical calculation data as No. (number of data), SUM (total), MAX (maximum), MIN (minimum), R [range (maximum-minimum)], AVE (average), SD (standard deviation) and CV (coefficient of variation). SPECIFICATIONS Features Analytical Balance Specs: Weighing Capacity: 220g Readability: 0.1mg (0.0001g) Tare Range: Full Repeatability (Std. Deviation): 0.1mg Linearity: 0.2mg Response Time: 3 sec Operating Temperature Range: 10º to 40ºC Sensitivity Drift: ± 2ppm (2 x 10 / ºC) Pan Size: 90mm Dia. Selectable Weight Units: Gram / Kilogram / Pound / Ounce / Troy Ounce/ Grain/ Pennweight / Carat / Milligram / Momme / Mesghal / Hong Kong Taels / Singapore Taels / Taiwan Taels / Baht Built-in clock for making all documents ISO/ GLP/ USP complaint. Conforms to GLP/GMP and ISO 9001 Standard. Metal Housing eliminates the effects of thunderstorms or electromagnetic interference from other equipment and provides long term stability and accurate results. Large glass windshield provides the user with more space for easily placing samples on the pan & allowing them to get accustomed to the interior temperature. It's nearly frameless all-glass design maximizes visibility by providing optimal lighting conditions. Glass panels can be slid from three sides for placing and removing samples (please see photos below). Adjustable leveling feet and built-in spirit level enable maximum accuracy and stability. Glass Panels Opened Glass Panels Closed Display Large bright LCD display with high contrast LED backlight makes it easy to read under any room lighting conditions. High precision 0.1mg (0.0001g) readability makes the balance ideal for measuring samples at high accuracy and precision. Data Transfer Bidirectional RS 232C and secondary screen output Interface make communication with PC or Printer easy. Built-In Application Modes Piece Counting: Count the pieces you add to or remove from the weighing container. Percent (%) Weighing: Weigh into a preset value or determines percentage weight deviations. Check Weighing: Check whether a sample corresponds to a preset target or is within a specific tolerance range. Formulation: Allow individual weighing values to be summed to a total. Statistics: Obtain the statistics of the weighing data. Totalization: Weigh, and then individually weigh in a piece which can be summed to a total. Density Determination: Determine the density of solids (purity of gold can also be determined on the basis of density). Animal Weighing: Perform the weighing of unstable samples (live animals). The balance calculates the weight as the average of a defined number of individual weighing operations. Internal Calibration Perfect Self Auto Calibration (Temperature / Time / Power On) Scale Dimension 340 x 212 x 340 mm Weight 20 lb Power Supply Universal AC Adaptor 220V or 110V; +/- 20%; 50-60Hz Compliance ISO, GLP / GMP USP Compliance Warranty One year limited warranty with lifetime support Operation Manual & Video