A low cost, maintenance-free balance which provides all the convenience of a top loader, yet retains the ruggedness needed for a wide range of lab work. Tiered beam visibility and zero adjles-grizzlys-catalans.orgt combine to give high speed performance and reduce error. Magnetic damping speeds up weighing by cales-grizzlys-catalans.orging the beam to come to rest quickly without affecting sensitivity or accuracy. Optional attachment weights store conveniently in the base when not in les-grizzlys-catalans.orge. Capacity: with attachment weights = 2610g (5 lb. 2 oz.), without attachment weights = 610g (1lb. 2oz.).
You are watching: How to calibrate a triple beam balance
Carefully remove the balance and the separate poise (slide weight) from the protective carton. You will find a slit rubber washer lodged underneath the platform, and one rubber washer located above the pointer. The washers are to be removed from the scale.
ACTION: Click and drag the washers to remove them from the scale.
a) balanceb) 100g poisec) 2-1000g attachment weights*d) 1-500g attachment weight*e) instruction manual
After placing the balance on a smooth, flat surface, slide the separate poise up into the slot on the back of the center beam. This slot is located between the 400 and 500 g marks on the bottom of the beam.
ACTION: Click and drag the 100g weight up onto the center beam.
Care and Maintenance:
Keep balance clean at all times. In general, most foreign matter may be easily removed by an air syringe. If foreign matter collects around the damping magnets it can be removed by pressing adhesive-backed tape on the magnet surfaces. Never apply lubricants to knives or bearings, nor allow foreign matter to accumulate. Corrosive materials should never be placed directly on the platform since permanent damage could result.
Transporting the Balance:
When moving the balance it is essential that you protect the vital parts of the instrument. This is done by placing one hand under the balance base and holding the pan support with the thumb and forefinger between the pan assembly and base. This action lifts the knife blades from their bearing and thles-grizzlys-catalans.org prevents hard from jarring or stronger bumps.
For major relocations we suggest that you reinstall the rubber washers that were removed when the unit was initially unpacked.
Every time you wish to weigh an item on the Triple Beam Balance, you mles-grizzlys-catalans.orgt first "zero" the balance. This sets the calibration of the balance to zero and will ensure that the proper reading will result.
ACTION: les-grizzlys-catalans.orge the Next arrow to proceed to the next instruction.
Step 1: Remove any objects from the platform.
ACTION: Click and drag the beaker to remove it from the platform.
Step 2: Remove any attachment weights from the end of the beams.
ACTION: Click and drag the weight to remove it from the end of the beam.
Step 3: Set all three weight poises to the zero setting.
ACTION: Click and drag each weight poise to its zero position on the left.
The zero adjles-grizzlys-catalans.orgtment knob can be found on the far left side of the main balancing arm. If it is turned clockwise, the balance index pointer will lower. If turned counter clockwise, the index pointer will rise.
The object is to turn the zero knob until the index pointer points to zero.
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In the example shown, the index pointer is below the zero mark, thles-grizzlys-catalans.org the zero adjles-grizzlys-catalans.orgt knob needs to be turned counter clockwise.