Rinstrum - R300 Series Digital Indicator Operator Manual Rev 1.5 
Page 9 
Key  Description 
 
TARE:  The <TARE> key is used to temporarily set 
the scale to zero (such as cancelling the weight of a 
carton before performing a filling operation).  The 
display will show the Net weight and the Net 
annunciator will be lit. 
•  The <TARE> key can operate in all modes  
(ie. Industrial, OMIL and NTEP). 
•  The weight tared is deducted from the allowable 
range of the scale, reducing the maximum weight 
that can be displayed. 
•  On the R320, the Tare adjustment is stored when 
power is removed and is re-used when next 
powered up. 
 
GROSS/NET:  The <GROSS/NET> key toggles the 
weight display between the Gross weight and the Net 
weight (provided that a Tare has previously been 
acquired using the <TARE> key). 
 
 
R320 
Only 
PRINT: The <PRINT> key on the R320 will trigger an 
output of the current weight reading if a printer or 
computer has been attached to the instrument and 
the manual print function has been selected.   
•  The PRINT prompt is displayed while waiting for 
the printer to accept data.    
•  If the printer is offline the PRINT prompt will remain 
for a maximum of 10 seconds before the operation 
is cancelled.   
•  Each weight printed is automatically added to an 
internal total weight. 
•  Long Press: A long press of the <PRINT> key will 
print the total.  The total weight is then cleared 
automatically.