Scaime eNod4-C - 9 CHECKWEIGHER TRANSMITTER MODE; 9.1 Introduction & Results

32
SCAIME Manual : NU-eNod4C-E-0418-196712-F.docx
9 CHECKWEIGHER TRANSMITTER MODE
9.1 Introduction
This operating mode consists of determining the weight of an object while it is present on a conveyor portion on which
a weighing system is fitted.
Note: The measurement is determined for net measurements only.
When the object arrives on the weighing system, the weight determination cycle can be started:
• by an input assigned to ‘start checkweigher cycle’ (Fig. 4 & 5). Caution, only input 2 is operational if both
inputs are assigned to the ‘start checkweigher cycle’ function.
• by a trigger level (Fig. 6) when the load cell signal reaches the specified value.
Fig. 6
Then, during a ‘stabilization time (Ts)’, the signal is highly disturbed so measurements are not taken into account. Finally,
during a ‘measuring time (Tm)’ defined by either:
• a time value (Fig.4).
• a duration prior to an edge on an input assigned to ‘stop checkweigher cycle’ (Fig.5).
Caution, only input 2 is operational if both inputs are assigned to the ‘stop checkweigher cycle’ function.
Fig. 5
t
Stab.
time
I - Start cycle
I - End cycle
Load
Result
available
t
Stab.
time
Measuring
time
I - Start cycle
O - Cycle in process
Load
Result
available
Fig. 4
Time
Load cell signal
Communication
Fig. 3