3�3 Consumed Quantity Monitoring; 3�3�1 Meter Reading; 3�3�2 Counter Reset - TESTO 0555 6451 Operating Instructions Manual

3.3 Consumed quantity monitoring
The unit has an internal quantity meter (totaliser)� It continuously sums up the
consumed quantity and provides this process value on the display�
3.3.1 Meter reading
The current quantity meter count can be indicated (→ 7.1).
In addition, the value before the last reset is saved� This value and the time since
the last reset can also be displayed (→ 7.1).
The meter saves the totalled volumetric flow quantity every 10 minutes�
After a power failure this value is available as the current meter reading� If a
time-controlled reset is set, the elapsed time of the set reset interval is also
saved� So the possible data loss can be at most 10 minutes�
3.3.2 Counter reset
The setting of the parameter [rTo] defines by which method the quantity meter is
reset:
[rTo] Counter reset
OFF The preset counter is only reset
(→ 9.3.3) - when a manual reset is made (→ 10.3.1) or
- when the maximum display range has been exceeded (99�999�999)�
1, 2,��� h The preset counter is automatically reset when the time has elapsed and
1, 2,��� d the count starts again (→ 9.3.2 Time-controlled counter reset).
1, 2,��� w
(→ 9.3.2)
The accuracy of the consumed quantity measurement depends on the
accuracy of the flow measurement�
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