Xylem HandyLab 750(EX) - Manual (Page 48)

48
Data Logger
Difference (DIFF)
When the delta range (process variable and/or temperature) related to the
last entry is exceeded, a new entry is created and the delta range is displaced
upwards or downwards by the delta value. The fi rst entry is automatically
created when the data logger is started.
Difference + Interval combined (DIFF+INT)
When the delta range related to the last DIFF entry is exceeded, a new entry
is created (example: entry A) and the delta range is displaced upwards or
downwards by the delta value. As long as the measured value remains within
the delta range, logging is performed at the preset interval. The fi rst DIFF
entry is automatically created when the data logger is started.
Example: First entry = 7, Delta = 1
Delta
Delta
Delta
Delta
Time
pH
= entry
Example: Logger type “DIFF+INT”
Delta
Delta
Delta
Interval
Time
pH
A = entry