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TresCon UNO
Function
Settings
ba43134e08
05/2017
5.3.7 Relays as limiting value indicators
The characteristics of the limit value indicator are defined by the set-
tings, Climit, hysteresis and td. The fundamentals of the function are
described in the introductory chapter (see section 5.3.3).
Setting
Climit
Hysteresis
td
Action
Response with stop
Selection/Values
within the measuring
range (depending on
the analyzer module)
0 ... 10 % of the
measuring range
0 ... 3600 s
Normally closed
Normally open
Active
Passive
Hold
Operation
Explanation
Upper or lower limi-
ting value.
Note:
Minimum distance
between the upper
and lower limiting
value in the case of
monitoring with 2
relays:
10% of the measuring
range
Hysteresis for upper
or lower limiting value
Switching delay:
The time period for
which a limiting value
must be exceeded
before the relay ope-
rates.
Prevents frequent
switching for measu-
red values that are
close to the limiting
value.
Relay action (see
section 5.3.1)
In Stop mode, the
relay switches to the
selected condition.
Also in the case of
AutoCal, AutoClean
etc.
The switching condi-
tion remains
unchanged.
5 - 45
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