Commissioning PR 5211 Instrument Manual
EN-38 Sartorius
4.10.9 Limits
3 pairs of limits can be set to get e.g. information on the filling status of a hopper and to generate a signal.
Each limit has got two weight data: The limit on and the limit off value. These two values are compared
with the actual weight and in case of coincidence an output signal is generated which can be linked to one
of the 3 outputs.
Example (detection of filling status, low and high limit):
The output signal (Limit 1 out) of limit 1 switches
OFF above a weight of 900 kg. The output signal
(Limit 2 out) of limit 2 switches OFF below a
weight of 290 kg. Both limit values have a
hysteresis of 10 kg.
In the event of a power failure, the two outputs
go to OFF, thus indicating underfill and overfill at
the same time.
If the limits (Limit 1 and Limit 2) for 'On' and 'Off'
are equal (on = off), output 1 (Limit 1 out)
switches ON, when the weight (Wgt) exceeds the
value and output 2 (Limit 2 out) switches OFF,
when the weight drops below the value.
Default values for Limit1 – Limit 3 are 0 kg.
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