Nova-Tech WBW Series - Manual (Page 17)

© Adam Equipment Company 2009 15
12.3 CALIBRATION COUNTER
The scales are sealed to prevent unauthorised calibration. However it is
possible to calibrate the scales as the software includes a counter to keep
track of how many times the scale has been calibrated and this value is
recorded on the scale so that future inspections can see if the scale has had
the counters incremented.
Refer to the WBW-M Service Manual for details of calibration procedures.
12.4 WBW SERIES , NOT APPROVED
The WBW non-approved scales are calibrated using metric weights when the
weighing unit selected is either kilograms or grams and using pound masses
when the weighing unit selected is either pounds, ounces or pounds:ounces.
Method 1
• To start the calibration turn the scale off and then turn it on again.
Press [Tare] during the self-test. Scale will show “P- - - - “. Enter
code number “0000” using the numeric entry method (see section
4.1) and press
[Tare]. This will take you directly to the calibration
section.
• Display will show "UnLoAd".
• Remove all weight from the pan and then press the [Tare] key
when the scale is stable.
• After the Zero point is set, the display will show “Ld xx”. Place the
suggested calibration mass on the pan. It is best to use a weight
close to the full capacity of the scale. If the mass is different from
the displayed value, enter the value of the mass in whole
numbers using the numeric entry method (see section 4.1). The
kg or the lb symbol will be on to show the active unit.
• Press the [Tare] key when the stable indicator is on.
• The scale will calibrate to the mass and then return to weighing.
• Remove the calibration weight as soon as calibration is complete.