Weighing scales come in various forms – from tabletop scales to industrial ones. Though weighing scales may lack the appeal of being an essential tool in trade with its humble form, Messer-Kruse (2006) identified it as the intersecting borderland of industry, government, marketplace, and consumer. Indeed, it is. Imagine the chaos of not having a standard tool to measure products for trade. Using mere gut feel on how anything weighs will fail in all aspects. Standardization in commerce is crucial, hence more so is measurement accuracy. In fact, weighing scale accuracy is significant across all industries. For instance, in the medical field, getting precise body weight is an essential factor in determining a patient’s current condition. Getting the accurate body weight is a key determining factor in planning the best approach for his wellbeing.
If you are wondering where to
find quality weighing scales for sale in the Philippines, you are up for several
options both online and in physical stores. Firstly, however, it is important
to be aware of the factors that affect a weighing scale’s accuracy.
1. Load
Cell Accuracy
The load cell
converts mechanical force into an electrical signal hence making it the most
important component of any digital weighing system. It is the load cell that
bends when weight is applied. Once weight is mounted on the scale, the load
cell compresses and produces an analog output signal which is then transmitted
to a controller that converts the signal into a digital weight measurement.
Response time
(little time between repeated weighing sessions), nonlinearity (maximum
deviation of the load cell’s calibration curve from a straight line), creep
(load was left stationary for a long period hence changing the measured weight),
and temperature (significant temperature variations) are just some of the
factors that can affect load cell accuracy.
2. Interference
Any kind of
obstruction during the time the load cell sends the electrical signal onto the
scale’s digital indicator will lead to inaccuracy. Moisture, for instance, can
affect the electrical output and interfere with the signal being sent. Another
factor is an increase in temperature as it increases wire resistance that can
then cause a voltage drop. This causes a discrepancy between the displayed
results and the actual signal sent. RFI (radio frequency interference) and EMI
(electromagnetic interference) also create additional input signals that can
cause the controller to show incorrect results.
3. Environmental
Factors
Outdoor and
indoor air systems such as air-conditioning and air ducting can affect
sensitive weighing systems. The same goes for nearby vibrating elements
inducing additional force on the scale. Abrupt dumping of heavy products on the
scales can cause shock that can damage the load cells as well.
Keeping these factors in mind,
be sure to find a reliable company as well. With the increasing number of Philippine
companies that offer weighing scales for sale, you should find a weighing
partner with precision and accuracy. It is best if the company is a member of
the International Association of Weighing Scale Instrument. Asuki Weighing System Incorporated, for
one, is a member of this elite group. Always be mindful of the importance of weighing
scales and the factors affecting their accuracy and you will be off for a
better trade.
