Calibration; Calibration Procedure; Security Seals - Adam Equipment WBZ Series Service Manual

7.0 CALIBRATION

7.1 CALIBRATION PROCEDURE

The scales have methods to either prevent or control unauthorised calibration. If the
Calibration Counters are enabled the scales can be calibrated without breaking the seals,
however the counters will be incremented to identify a calibration or change in parameters.
If the scales do not have the counters enabled then access is controlled by breaking the
seals on the scale to gain access to the circuit boards inside. See the figures on the
security seal as given below.
WARNING: BREAKING OF THE SEALS MAY MAKE IT ILLEGAL TO USE THE SCALES
FOR SALES OF GOODS. CONTACT YOUR TRADING STANDARDS OFFICE FOR
FURTHER ASSISTANCE.
7.2

SECURITY SEALS

Method of sealing
Alternative method
NOTE: IF THIS SEAL IS BROKEN THE SCALE MUST BE RE-SEALED BY
THE RELEVANT AUTHORITIES USING EITHER THE LEAD WIRE SEAL
OR AN ACCEPTABLE SEAL BETWEEN THE COVER AND THE BASE.
© Adam Equipment Company 2008
The scale has got metallic loops on the base
and the cover, located at the right rear corner
as shown here. A metal pin or wire can be
passed through the loops and sealed using a
lead-wire seal. Ensure the seal is secured
enough to prevent removing the cover
without breaking the seal or damaging the
enclosure.
An alternative method would be to use
tamper-evident labels over the screw on the
bottom cover and over the joint between the
top and the bottom cover as shown in the
adjacent figure.
Metrology labels and additional security
measures may be added to the scale as
required by the national legislation.
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