Ohaus RANGER 3000 COMPACT SCALES Manual - Manual (Page 11)

Ranger™ 3000
Series EN-9
10. Place sample material on the pan or in the container. If the sample weight is under the
target percentage range, the yellow LED will light. If the sample is within the target
percentage range, the green LED will light. If the sample is over the target percentage
range, the red LED will light.
Note: Press Function to view the low and high check limits.
3.6.3 Check Count
Set Checkweigh to Count in the Mode menu. Use this mode to compare the quantity of items to
a target quantity range.
1. Press and hold Mode until [CHeCk] (Check) is displayed. [CLr.PwW] (clear APW) will
then display.
If no APW exists, the scale will display [Put.10], proceed to step 5.
2. Press No to use the stored APW and proceed to step 5.
3. Press Yes to establish a new APW. Scale will now display [Put.10]. Press No or Back to
toggle the choices (5, 10, 20, 50 or 100).
4. Put the indicated number of pieces on the pan then press Yes to calculate the APW.
5. The scale will display [CL.lImM] (clear Check limits).
6. Press No to use the stored check limits and proceed to step 9.
7. Press Yes to establish new check limits. The scale will then display [Set. Lo]. Press Yes
to view the “Low” limit value. Press Yes to accept or No to edit the “Low” limit value. The
stored value then displays with the first digit highlighted [ 0 00000 Pcs]. Repeatedly press
No until the desired number appears. Press Yes to accept and highlight the next digit.
Repeat until all the digits are correct. Press Yes to accept the “low” limit value, [Set. Hi]
will be displayed.
8. Repeat the same procedure to accept or edit the “high” value.
9. If required, place an empty container on the pan and press Tare.
10. Place sample material on the pan or in the container. If the sample weight is under the
target quantity range, the yellow LED will light. If the sample is within the target quantity
range, the green LED will light. If the sample is over the target quantity range, the red
LED will light.
Note: Press Function to view the low and high check limits.
Positive Check
Positive check is used to determine when the material added to the scale is within the target
range. In this case the UNDER and OVER limits must be positive values. (The OVER limit must
be greater than the UNDER limit.)
Add material to the scale until it is within the ACCEPT (green) range.
Negative Check
Negative check is used to determine when the material removed from the scale is within the
target range. In this case the UNDER and OVER limits are both negative values.
The UNDER limit must be greater than the OVER limit (for example: UNDER = -10/OVER =-15).
Place the item to be weighed on the scale and press TARE.
Remove a portion of the item until it is within the ACCEPT range.