Controls and Functions
Trip-Value editable (0000000...999999)
Hysteresis editable (0000000...999999)
Unit provided by system
Trip-Control selectable (unactive / high signal / low signal)
Functional Description
Of each PICAS, each one of 4 channels can be selected in this menu by CHANNEL (up or
down).
Before setting the trip-levels, all other parameters have to be set. Adjusting Trip-Levels is
practically the last adjustment before actual measuring starts.
The trip-value can be set to a numerical value at which a switching action of the tripping
function has to work. This value shall be any level from within the measuring range (see
range menu).
Hysteresis can be set as the value at which the trip function goes back to normal again.
Normally this is a percentage of the trip-value.
(Example: you wish to get a trip at 98% of the maximum measured value, of, say “100”. You
then set the Trip-Value at “98”. If you now adjust the hysteresis at “3”, the trip mechanism
will perform a switch action at the digital output (for connections see 3.5.3). This digital
output will switch back to normal when the measured value reaches a value of “98 - 3 = 95”.
The digital output switches again if the measured value then comes to 98 again.)
Unit is automatically displayed, according to the measuring range set earlier.
Trip-Control offers the facility of either not tripping at all, tripping when a high level, or
tripping when a low level of the measured value is reached.
Act.Period (Activation Period) determines the minimum time span during which a trip will
remain active. When set to anything other than 0, the trip will stay active for at least the
given amount of time. If after this time the trip is still active, another span of the same
duration is entered.
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