What
is scale calibration?
Calibration of a scale is a procedure in which a certified scale
technician uses known weight certified by the State of North Carolina
Bureau of Weights and Measures, to adjust the response of a mechanical
or electronic weighing system to the following tests; The indicator
must show zero when there is no weight on scale. When a known weight
is applied the indicator must display the exact amount of applied
weight. When weight is applied or removed incrementally the scale
must display weight equal to that on the scale display.
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Why
is calibration needed?
All scales ideally need to be calibrated when first placed into
service to insure accurate operation. Any scale will drift away
from its original calibration in time. Wear of mechanical components,
age and degree of use, all contribute to calibration drift. Many
states require that any scale used to buy/sell based on weight must
be NTEP approved and inspected and certified as to it’s accuracy.
Normally, we recommend calibration every quarter by a trained scale
technician with certified
test weights.
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How often must I calibrate?
There are several factors to consider when deciding on frequency
of scale calibration testing. Is the scale operating in a hostile
environment? How much is this equipment being used, one two, three
shifts, or only several times a week? Are there Quality Control
parameters which must be maintained such as ISO 9000? How long can
your company afford to allow your scale equipment to operate with
a possible error in the weight reading(s)? After factoring all the
information above, many customer's feel calibration
service once a quarter is ideal.
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How
can I set up my weighing equipment for regular calibration?
Central Carolina Scale, Inc. will assist in setting up your custom
scale service
agreement program by taking into consideration all of the above
questions. It is recommended that scales be calibrated quarterly.
Central Carolina Scale, Inc. will perform the tests as prescribed
in the service agreement statement.
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Cleaning
Platform: The scale
deck should be wiped free of foreign materials and checked for obstructions.
Check under and around the platform for foreign materials. Remove
any items that will adversely effect weighing accuracy. Pit type
scales should be checked for clearance around the pit walls and
foreign materials removed if necessary. Mechanical scales should
be checked for freedom of movement in all directions.
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Inspection
Marking: All scales should be properly marked with the capacity
and count by on the display panel or the serial tag. "NTEP
Legal for trade" scales must be properly marked in accordance
with Handbook 44 requirements with a CoC number.
Over
Load Stops: Visually inspect the over load stops for proper
clearance. Small bench scales should be loaded to capacity to determine
if the stops have sufficient clearance and with capacity weights
on the scale, gently push the platform to insure that the stops
are engaged with very little movement required.
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Testing
Overview: Test procedures according to CCS, Inc. will be
adhered to, unless other test procedures are requested by the customer.
All tests should be completed and the initial error properly marked
before corrections are started.
For calibration info or to set up
a service / calibration schedule for your scales or balances call
(919) 776-7737
Airline baggage scales, Animal scales, Baby scales, Analytical Balances,
Industrial Balances, Top Load Balances, Barcode printers, Batching
systems, Bench scales, Body fat scales, Bucket loader scales, Cat
scales, Check weighing scales, Conveyor scales, Counting scales,
Crane scales, Data collection, Dial scales, Doctor scales, Dog scales,
Drum scales, Drum filling scales, Dump truck scales, Force &
Torque Measurements, Floor scales, Food scales, Fork lift scales,
Front loader scales, General purpose scales, Gram scales, Health
scales, Hospital scales, Hospital bed scales, Hospital chair scales,
Hostile environment scales, Intrinsically safe scales, In-motion
scales, In-motion conveyor scales, Jewelry scales, Lab scales, Onboard
scales, Medical scales, Mechanical scales, Mechanical balances,
Mechanical hanging scales, Physician scales, Postal scales, Portion
control scales, Price computing scales, Price computing label printing
scales, Printers, Rail scales, Scale indicators, Scale software,
Shipping scales, Spring scales, Top loading scales, Truck scales,
UPS scales, Wheel chair scales, Wheel loader scales, Weigh In-motion
scales, Wheel chair scales and more !
Scales we sell and service:
Acculab, A&D, CAS, Cardinal, Chatillon, Detecto, Digi, Doran,
Emery, Fargo, Flex-Weigh, IDS, Intercomp, Ohaus, RLWS Rice Lake,
SI, UWE, Yamato.
Load
Cells: Cardinal, Rice Lake, BLH, CAS, Celtron, Flintec, General
Sensor, HBM, Interface, Nikkei, Scaime, Revere Transducers, Sensortronics,
Tedea-Huntleigh and more!
Sales,
Service,
Calibration,
& Rentals
