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20
Service Procedures
SP3-Scale verification
SP3-Scale verification
For Verified Scales
1) Attach a spreader and a sling that is
suitable to hold the calibration weight to
the Maxi Move.
2) Press the power button on the Maxi Move
to zero the scale.
3) Add weight to the sling. It is
recommended that at least five readings
from 0 to 225 kg for standard jibs and
0 kg to 130 kg for extended jibs are
performed. The five reading must be
spread evenly throughout the entire
range.
4) For each weight, note the value on the
display.
5) Gradually remove the weight and check
the zero value at the end.
Values must be between the following limits:
If the scale is beyond the tolerance range, it
must be recalibrated and re-verified by a
notified body (see “Calibration” section).
For Non-Verified Scales
The same procedure can by applied for a
non-verified scale. However, if the scale is
beyond the tolerance range, it can be
recalibrated by an Arjo technician without
the involvement of a notified body.
Note: ARJO technicians can perform a
verification to check if the scale meets
all the needed requirements, but this
has no legal value in Europe. Only an
authorized notified body can make the
verification and provide a mark of
approval. However, it is recommended
that ARJO technicians perform a
verification after the calibration, to be
sure the calibration is correct before the
notified body performs the final check.
Note: Scale tolerances in service
depend on each country. Usually, twice
(2x) the permissible error of the initial
verification is allowed (Refer to TAN C-
32-2008-BE for more information about
local regulations).
Note: It is recommended to use certified
weights for the scale verification (Class
M1 or F).
Note: The notified body inspection
might involve more verifications than
those listed in this section. The test in
this section is intended to give a good
indication if the scale will pass a re-
verification.
SCALE VERIFICATION TOLERANCES
W
EIGHT
I
NITIAL
V
ERIFICATION
(1
X
MPE
)
I
N
S
ERVICE
V
ERFICATION
(2
X
MPE
)
0
KG
+/-0.025
KG
+/-0.05
KG
2
KG
<
M
d
50
KG
+/-0.05
KG
+/-0.1
KG
50
KG
<
M
d
200
KG
+/-0.1
KG
+/-0.2
KG
200
KG
<
M
d
227
KG
+/-0.15
KG
+/-0.3
KG
Fig.9