Checkline TT-QCM - Manual (Page 15)

Description of Functions 14
The limit is adjusted by using the navigation buttons to set the first four
digits to the desired value. The fifth digit is used to select the decimal
point position. The up and down buttons under the “Soft” button
Change will change the value from 0-9. Pressing the “soft” DIG will
scroll through the digit positions. When the correct value is entered,
pressing the ENT button will return you to the menu system.
Once all the digits have been set, press the MEM key to accept the value
and return to Program Function mode. The next time a reading is taken,
"LO" will appear on the display if the captured value is less than the
low limit
H
IGH
L
IMIT
Use the high limit setting as a means of visually flagging the operator
when a reading falls over a desired maximum value. High limits are set
in the identical way as low limits. Please refer to the Low Limit section
for details.
NOTE ON LIMITS: The green LED on the front of the display will flash
when a peak is captured that falls within the limit setting.
AWS-QCM Guide