5
5.0
Calibration
This scale comes with the calibration jumper on the PC board in the
CALIBRATE position. The calibration instructions below are written for this
jumper condition.
If the user wants to lock the calibration they must access the PC board and
more the jumper. See the next section
6.0 Accessing the PC board and
Locking/Unlocking Calibration
on page 6
for instructions.
1.
Be sure to have the proper test weights on hand. For Model 405-6
you should have 6 kg or 12 lb weights. For Model 405-15, you should
have 15 kg or 30 lb weights.
2.
Remove all weight from the scale platform and be sure the scale is
turned off.
3.
Press and hold the
Tare/Units
key, and then press the
On/Off/Zero
key until…
CAL-0
appears.
4.
Release the two buttons.
5.
Press the
On/Off/Zero
key…
0
in
CAL-0
will flash briefly, then
CAL-F
is displayed.
6.
Press the
Tare/Units
key to choose the unit of standard weight in
calibration…
The blue annunciator will light next to the active unit of mea-
sure.
7.
Load full capacity on the scale platform. That is 6 kg or /12 lb for
Model 405-6, or 15 kg / 30 lb for Model 405-15. Press the
On/Off/
Zero
key…
F
in
CAL-F
will flash briefly then
CAL-0
appears again.
8.
Remove the weight from the scale platform, and press the
On/Off/
Zero
key…
0
in
CAL-0
flashes until calibration is complete.
9.
The scale will restart in normal weighing mode. If
CAL.Er
is
displayed, there is an error in calibration and you need to perform
steps
1
through
8
again.
10.
In steps
3
through
5
, press the
On/Off/Zero
key repeatedly to abort
the calibration procedure.
