Page 79 - FoodFocusThailand No.206 MAY 2023

STAND OUT TECHNOLOGY

1. Trust the Automatic Calibration Learn more or consult a technical expert, it will help operators to avoid the
Feature but Don’t Confirm Results above-common mistakes. In addition, the selection of weighing equipment that
with Weights These automatic is suitable for the purpose. These are also important to ensure your project runs
calibration features do not actually test a lot more smoothly.
the scale to confirm the operation. Only
test weights or hydraulic calibration is
proven the performance of a balanced More Information Service Info C013
system that there are no broken
components, cables, or load cells and
there is not anything blocking the scale ข้้อมููลเพิ่่�มูเติ่มู / Additional Information
from delivering useful measurements. หากคุุณต้้องการรายละเอียดเพิ่่�มเต้่มในการเลือกเคุรื�องชั่่�งนำ�าหน่กให้เหมาะสมและต้รงต้่อคุวาม
2. Rely on “Legal for Trade” as the ต้้องการ สามารถเข้้าเว็บไซต้์ www.mt.com/GWP
Basis for Good Manufacturing If you would like more information on selecting the right scale or proving that your scale is
Of course, commercially legitimate fit for purpose, please visit www.mt.com/GWP
scales are accurate and accurate,
however, the tolerances are set to
facilitate fair trade but the tolerances
should not be used for setting quality
targets. Select scales that exceed the
legal tolerances and can help you to
improve production quality.
3. Use a Non-compliant Automation
Interface The Open Device Vendors
Association (ODVA), for example,
specifies and tests products to ensure
that they will function well on EtherNet/
IP networks. This helps set the basis for
easy installation and consistent, trouble-
free operation. If you use a gateway, it
has a conformance certificate and it
meets your data throughput requirements.
4. Choose Non-specific Network
Devices It is always tempting to choose
a lower cost network switch to save
money on a project. We have witnessed
instances of random network failure that
have been blamed on the weight indicator
but actually caused by the purchase of
non-standard network equipment.
5. Choose Weighing Devices That
Cannot Filter Out Mechanical
Vibration. The vibration from mixers
and agitators affects accuracy. Many
weighing devices use simple electronic
filters that average the weight values and
increase system latency by delaying the
result that in many automation systems
will cause delays and inconsistency.
6. Not Using Fault-tolerant
Products. Downtime is a profitability
killer that can be easily avoided, even at
the device level. Therefore, in a multiple-
scale system, it is best practice to use
single-weight transmitters with integrated
EtherNet/IP supporting rings. networks
such that when one device fails the
remaining units continue to operate
without interruption. Locating the
transmitter externally from the PLC
backplane will speed up weight
transmission and reduce bus-provided
power requirements while allowing you
to isolate problems very quickly to the
exact device so that you are up and
running in minutes.
MAY 2023 FOOD FOCUS THAILAND 79

19/4/2566 BE 16:05
77-79_Stand out Tech_Mettler.indd 79
77-79_Stand out Tech_Mettler.indd 79 19/4/2566 BE 16:05