Cooper Instruments & Systems DFI INFINITY B Ultra High Performance Digital Force Indicator - Manual (Page 62)

There are 4 types of Alarm modes/Deviation Functions which can alter the alarm response as flowing illustrations:
All horizontal axes represent time line.
“PROC.” : Process Deviation (No Deviation)
“HI dEV” : High Deviation for both Active Above and Active Below
“LO dEV” : Low Deviation for both Active Above and Active Below
“bNd.dEV” : Band Deviation for both Active Above and Active Below
CF 156 57 M2544/N/0505