Untitled - HUBER

An example for the display:
28.01.01 9:23
Meldg.: 46/2
unistat control V3.8.1
Appendix A - Program Directory
This would mean for example, that on the 28.01.01 at 9.23 using the selected external
control mode, the external temperature sensor suffered a defect or noticed to be missing. The
code 46 is an error, leading to the switching off of the unit.
In the event that a service call has to be placed after a defect, the process can be accelerated
by reading and noting the last 10 messages with date and time from the memory. If these
messages communicated during the service call, we can possibly start the first steps to
resolving the problem.
Program 11: Acknowledge Warning
The appearance of a warning, which does not cause the unit to switch off, is acknowledged.
If more than one warning has been triggered, the most important one is delivered first
enabling the highest priority to be acknowledged first.
Program 12: Pt100 Correction (internal)
With this program it is possible to adjust the actual value of the internal Pt100 temperature
sensor, in the range of +/- 5K.
If program 12 is called up, the current correction value (Standard: 0) appears. You leave the
program without changing anything by pressing . If you enter a value bigger or
smaller than 5K, the following message appears:
Nicht zulässig
or
Fct not Accepted
25
or
Non autorisé.
The entry is made by using a resolution of 0.1K. (0.01K can be entered instead of .)
This is for following relation:
Requested value = Pt measured value + correction value
Example:
(Correction value was set at 0)
Display value: 23.5°C
Required value: 22.9°C Correction value: -0.6K
Note: The correction value is not lost at mains switch off. With program 52 – standard
parameter set – it is set back to the standard value of 0.
Program 13: Pt100 Correction (external)
The correction value for a connected Pt100 external temperature sensor in 4-core
configuration.
As program 12 but for an external sensor. The connection configuration (connector and plug)
all correspond to the NAMUR guidelines, and are to be found in Appendix D.
Program 14: Set Point Tracking
The given set point is executed via the external Pt100 temperature sensor. This means: If the
external sensor measures 15°C, the set point will be set to 15°C. If requested you can set
an offset into the externally measured value with program 13.
This mode is rejected if the set point is given through a different source (e.g. a ramp or
tempering program is activated, external tempering stopped (program 3), or the analogue
interface (‘AIF’) activated with program 46).