A&D GX-13, Instruction Manual

Page 1: ...GX 13 Density Determination Kit For GX 200 300 400 600 800 1000 GF 200 300 400 600 800 1000 INSTRUCTION MANUAL WM PD4000134D...

Page 2: ...duced transmitted transcribed or translated into any language in any form by any means without the written permission of A D Company Ltd The contents of this manual and the specifications of the instr...

Page 3: ...Float 6 Influence of Wire 7 Surface Tension 7 Bubbles 7 4 Measuring the Density of a Solid 8 Assembling the Kit On the balance with a glass breeze break installed 8 Assembling the Kit On the balance...

Page 4: ...wever the results of measurements may be affected by various factors that could cause errors thus can not be guaranteed Do not use the density determination kit for measuring the density of chemically...

Page 5: ...3 1 The Kit Includes...

Page 6: ...the same volume as that of the sample at 4o C at 1013 25 hPa No unit S Specific gravity M Mass V Volume Density of water at 4o C 0 99997 g cm3 1 000 g cm3 Archimedes Principle of Density Measurement A...

Page 7: ...ity of sample A Weight in air B Weight in liquid Density of liquid Density of a Liquid A float with a known volume is used The density of a liquid can be obtained according to the weight in air weight...

Page 8: ...Pa When obtaining measurement results down to the third decimal place 0 001 g cm3 is added to the measured value to compensate for the air density error Temperature of a Liquid When the density of a s...

Page 9: ...ensity of the liquid is obtained Surface Tension When the density of a solid is measured a force of about 5 mg surface tension is applied to the pan between the wire 1 mm in diameter of the pan and th...

Page 10: ...the thermometer clamp to the beaker and insert the thermometer in the thermometer clamp holes 5 Pour a liquid distilled water etc whose specific gravity is known into the beaker and place the beaker o...

Page 11: ...liquid distilled water etc whose specific gravity is known into the beaker and place the beaker on the beaker stand 6 Place the density pan on the density pan stand 7 Adjust the amount of the liquid...

Page 12: ...alue to zero 3 Place the sample on the upper pan and record its weight in air A 4 Press the RE ZERO key to reset the displayed value to zero 5 Place the sample on the lower pan and record its weight i...

Page 13: ...ter g cm3 4 810 0 595 0 99678 8 06 Calculated value 7 The density will be found by Where Density of sample g cm3 A Weight in air g B Weight in liquid g Density of water g cm3 Table 1 Density of water...

Page 14: ...ach the thermometer clamp to the beaker and insert the thermometer in the thermometer clamp holes 3 Place the beaker on the beaker stand 4 Connect the float to the float hook with a wire The length of...

Page 15: ...display becomes stable record the displayed value without its minus sign This value is A in the formula below 4 The density of the liquid can be found by substituting the measured value in the follow...

Page 16: ...rmula Where A Density of sample A Weight in air B Weight in liquid B Density of liquid Changing the function table Selecting the density mode The density mode is available as one of the weighing units...

Page 17: ...s Unit 6 Press the CAL key to enter the density mode Class Item Parameter Description 0 Water temperature d5 fnc Density function ld in Liquid density input 1 Liquid density 0 Factory setting Note d5...

Page 18: ...l the change and return to the density mode The relation between the water temperature and density is shown below Entering the density directly ldin 1 In the density mode press and hold the MODE key u...

Page 19: ...icator blinks with the unit g displayed z Measuring the weight of a sample in liquid The processing indicator illuminates with the unit g displayed z Displaying the density The processing indicator il...

Page 20: ...E error is displayed the SAMPLE key is disabled 4 Remove the sample from the upper pan and place it on the lower pan in liquid When the value displayed on the balance becomes stable press the SAMPLE...

Page 21: ...d detergent for washing dishes added to the water reduces the influence of surface tension A few drops of a surface active agent will affect the liquid density only a very small amount When methanol i...

Page 22: ...nk and a measurement error occurs Measuring adhesives is not recommended because the adhesive sample may be difficult to remove from the float Q When a semi micro balance is used is accuracy improved...