4 | Commissioning
FISCHER Mess- und Regeltechnik GmbH
16/28
BA_EN_ME50_ATEX
(i) Parameter activation and deactivation point
SP1A SP1E
These parameters are used to define the activation and deactivation point. Both
parameters can be set individually over the entire basic measuring range.
•
sp1E
>
sp1a
If the measured value exceeds the activation point
sp1E
, the contact
switches. It is only switched off again, if the measured value undercuts the
activation point
sp1a
. (Hysteresis function).
•
sp1E
>
sp1a
If the measured value exceeds the activation point
sp1E
, the contact
switches. If the measured value undercuts an equally large deactivation
point
sp1a
, the contact drops.
•
sp1E
<
sp1a
The contact switches if the measured value lies within the range between
the activation point
sp1E
and the deactivation point
sp1a
. If the measured
value lies outside this area, the contact drops.
As switched contact is shown in the display as
SP1
or
SP2
.
(ii) Parameter function
sp1f
The type of contact is defined with this parameter.
sp1f
= 0
The contact works as an open contact (NO).
sp1f
= 1
The contact works as an make contact (NC).
CAUTION
Power failure
Please note that the contact is always open if no current flows, regardless of the
programmed contact type.
(iii) Parameter damping
sp1d
This parameter allows the reaction of the switch output to be delayed by 0° ...
°200 s. This delay applies equally for switching on and off.
Parameter offset correction
0ff
This parameter is used to correct an offset, if the measured value at the zero-
point deviates from zero. The display shows the current measured value that
you can change by up to ±10% of the basic measuring range.
Parameter span correction
span
This parameter is used to correct an offset of the span, if the measured value at
the end or the measuring range deviates from the end value. The display shows
the current measured value that you can change by up to ±10% of the basic
measuring range.
