Linearity Calibration - OHAUS Valor 2000 Service Manual

A.1.2 Linearity Calibration
Linearity calibration uses three calibration points. The first is established with no load on the
scale. The second and third are established at mid-capacity and full capacity. (See Table 4-3.)
To enter the Calibration menu, press and hold UNIT/Menu until CAL
appears. Press Yes. SPAN appears. Press No.
LINEAr appears. Press YES.
0 flashes. The kg LED is lit to indicate the calibration unit.
With no weight on the pan, press Yes to establish the zero point.
(Outlined characters represent a flashing display.)
Note: If the pan is not empty (20% of the factory calibration zero value),
CLEAr PAN flashes for a timeout period of five seconds.
If the load is not stable within ten seconds, or the value is not within the
20% limit, CAL E appears for three seconds and the scale returns to the
weighing mode. The previous user calibration data is used and the
current weight is displayed.
- - C - - appears while the zero point is established.
The mid calibration point value flashes. Place the specified calibration
weight on the pan and press Yes. (The example shows the mid
calibration point value for a scale capacity of 3 kg.
Note: The new mid calibration value must be stable and within 5% of the
stored factory mid calibration value. If the load is not stable within 10
seconds, or the value is not within the 5% limit, CAL E flashes for three
seconds and the scale returns to the weighing mode and the currently
active unit of measure. The previous user calibration data is used and the
current weight is displayed.
- -C - - flashes while the mid point is established.
The full calibration point value flashes. Place the specified calibration
weight on the pan and press Yes. (The example shows the full calibration
point value for a Scale Capacity of 3 kg.)
- - C - - flasheswhile the full point is established.
If linearity calibration was successful, dONE appears for 1.5 seconds.
The scale exits to the weighing mode and displays the actual weight value
in the currently active unit of measure. (The example shows the WEIGH
mode with the 3 kg linearity weight on the pan.)
Valor™ 2000 Series Service Manual
APPENDIX A STANDARD CALIBRATION
A-3 Ohaus Corporation www.ohaus.com
CAL
lIN
CLEAr
PAN
CAL E
--C--
CAL E
--C--
--C--
dONE
3.000