11
Basic Force Gauge User’s Manual
For tension applications it is often desirable to invert
the text on the display so that the operator can read it
more comfortably. To invert the text, press and hold
MAX
while powering up the BFG with the
ON/OFF
key. The display is inverted.
If you suspect that your load cell transducer has
sustained an overload it is possible to check the
status of the load cell immediately.
Symptoms of overload may be:
(a) OL in display
(b) buzzer sound
(c) probe not aligned perpendicular to gauge
(d) load indicator bar present even under zero load
Place the gauge horizontally on a flat level surface.
Press and hold
UNITS
until the password menu
appears with
0000
in the display. Press
ZERO
four
times and you will now see two values shown as %.
The upper value shows the % offset when the gauge
was last successfully calibrated. The lower value
shows the % offset currently present on the gauge. A
significant offset, or change in offset, may indicate
that the loadcell has been overloaded and sustained
damage.
Figure 4
Diagnostic screen
If the % offset is between 5% - 10% please contact
your supplier to arrange a recalibration of your BFG.
If the % offset is greater than 10% please contact your
supplier to arrange for a loadcell replacement. These
values are given as an indicator only – the need for
calibration/repair may vary according to the individual
characteristics of the load cell.
Invert Display Text
An instrument showing
an overload condition
cannot be relied upon
to provide accurate,
repeatable measure-
ment. Consult your
Quantrol supplier.
Load cell Diagnostic
test
