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If you suspect that your AFG has sustained an
overload, it is possible to check the status of the AFG
immediately.
Symptoms of overload may be (a) OL in display (b)
buzzer sound (c) load indicator bar present even under
zero load.
Place the AFG (or your external SMART sensor) on a flat
level surface. Press and hold the
MENU
key until page 1
of the main-menu appears. Press and release the
MENU
key to access the main menu page 2. Using the
UP
and
DOWN
keys move the arrow cursor to CALIBRATION,
and press
ENTER
.
The display will show 0000. Press the
ENTER
key four
times (to enter 0000 as the password).
CALIBRATION sub-menu 2 (the sensor diagnostic test
screen) will appear on the display, as shown in Fig. 12.
The offset value provides an indication of the condition
of the loadcell, and is defined as the % difference
between the initial zero and the current zero reading.
If the offset is between 5 - 10 %, please contact your
supplier to arrange a re-calibration of your AFG.
If the offset is greater than 10 %, please contact your
supplier to arrange for a possible sensor replacement.
These values are given as an indicator only - the
need for calibration/repair may vary according to the
individual characteristics of the sensor.
In addition to the offset, the number of overloads
(OL) experienced by the loadcell in both compression
and tension directions are displayed. An overload is
registered when a load exceeding 150% of the rated
capacity of the loadcell is applied in either direction.
Calibration
An instrument showing an
overload condition cannot be
relied upon to provide accurate,
repeatable measurement -
consult your supplier.
CALIBRATION sub-menu
1
CALIBRATION sub-menu
2
Fig. 12
