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Uncheck the relay(s) that you want to block when the under
weight warning limit (e.g. 100 kg.) is reached.
4.
To activate a relay(s)/an indication relay(s) when the weight
equals or falls below the WARNINGWEIGHTLOW_LIMIT
(e.g. 100 kg.), select WARNINGWEIGHTLOW_OR_RELAYS.
Check the relay(s) that you want to activate when the under
weight warning limit (e.g. 100 kg.) is reached.
*Hysteresis value
A hysteresis value can be used when there is a need for increasing the
tolerance for small deviations. An hysteresis value can be set for over-
weight and/or underweight, and applies for both the alarm limit + the
warning limit.
Example 1: Overweight settings
The WeightHigh_Limit is set to 2000 (kg.). A WeightHigh_Hysteresis value
is set to 500. When the incoming weight goes up to (or exceeds) the
WeightHigh_Limit, an alarm flag is raised.
Subtract the WeightHigh_Hysteresis value from the WeightHigh_Limit to
get the value where the flag will be lowered: 2.000-500= 1.500. The
incoming weight goes above 2.000 and the alarm flag for overweight is
raised. The incoming weight then drops to under 1.800, goes up to 1.900,
falls down to 1.800 before finally stopping at 1.880. Since the incoming
weight value never went below the WeightHigh_Hysteresis limit of 1.500,
the flag is still raised. If it had gone below, the alarm flag would have been
lowered.
In practice, raising the flag can be used for blocking or activating a relay
when the incoming weight value is too high. When the flag is lowered, the
same relay will block or activate again. If the incoming weight is fluctu-
ating and you don´t use a hysteresis value, the relay will go on and off
every time the value passes the WeightHigh_Limit on its way up and
down.
An overweight alarm limit was set set to 1.700 (kg.). Subtract the
hysteresis value of 500 from 1.700. When the incoming weight goes up to
