Rice Lake Ranger Count 3000 Series, Ohaus - Manual (Page 11)

Ranger™ Count 3000 Series EN-9
5. If required, place an empty container on the pan and press Tare.
6. Place sample material on the pan or in the container. If the sample weight is under the
target weight range, the yellow LED will light. If the sample is within the target weight
range, the green LED will light. If the sample is over the target weight range, the red LED
will light.
3.6 Check-Counting
Press and hold the Target key, [Check] is displayed in the weight window. Release the Target
key when [Count] is displayed in the piece weight window.
1. Press the Target key, [Under] is displayed in the weight screen. The previous under limit
will is displayed in the piece weight screen.
2. Input the sample size with the numeric keypad. The value will be displayed in the count
window.
3. Press the Yes key to accept the under limit value, [Over] is displayed in the weight
screen.
4. Repeat step 2 and 3 above to set the over limit.
5. If required, place an empty container on the pan and press Tare.
6.
Place sample material on the pan or in the container. If the sample quantity is under the
target pieces range, the yellow LED will light. If the sample is within the target pieces
range, the green LED will light. If the sample is over the target pieces range, the red LED
will light.
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.
Zero Check
Zero check is used when comparing subsequent samples to an initial reference sample. In this
case, the UNDER limit must be a negative value and the OVER limit must be a positive value.
Place the reference item on the scale and press Tare. Remove the reference sample and place
the item to be compared on the scale to determine if it is within the ACCEPT range.