LumaSense Technologies IS 6 Advanced - Manual (Page 25)

IS 6 Advanced / IGA 6 Advanced Manual Settings / parameter descriptions · 25
10 ms…25,0 s If the clear time is set between 10 ms and 25.0 s, the maximum value is
held in double storage mode. After the entered time, the value will be
cleared alternately from one of the storages, while the value of the other
storage is shown.
EXTERN With the external clearing function, the storage operates in single storage
mode. The values are immediately cleared from the storage by contacting
the wires connected to pins J and K, if the EXTERN mode was selected.
AUTO The AUTO mode is used for discontinuous measuring tasks. For example,
when objects are being transported on a conveyer belt and pass the
measuring beam of the pyrometer only for a few seconds. In this case, the
maximum value for each object has to be obtained.
With the AUTO mode, the maximum value is stored until a new hot object
appears in the measuring beam. The temperature, which has to be
recognized as “hot” is defined by the low limit of the adjusted sub range.
The stored maximum value will be deleted once the temperature of the new
hot object exceeds the low limit of the sub range by 1% (transition in
positive direction) or by at least 2 °C. This is also valid if the sub range equals
the basic range.
HOLD The HOLD function allows you to freeze the current temperature reading at
any moment. This feature is activated using an external switch that has been
connected between connector pins J and K.
The temperature reading will remain frozen as long as the contact remains
closed.
4.6 Analog Output
The analog output has to be selected according to the signal input of the
connected instrument (controller, PLC, etc.). If 4 to 20 mA is set, the analog
output gives 3.9 mA for temperatures below lower range limit.
4.7 Sub Range
You have the opportunity to choose a sub range (minimum span 50 °C) within the basic
measuring range of the pyrometer. This sub range corresponds to the analog output.
Example: Range 250…2500 °C, Sub Range 925…975 °C.
The sub range setting also affects the maximum value storage when the Clear Peak Memory
t
clear
is set to AUTO. For more information on the t
clear
AUTO setting, refer to section 4.5 .
Note: Settings for Sub Range - any range adjustable within the temperature range
with a minimum span of 50 °C.
4.8 Device Address
When connecting several pyrometers to one serial interface with RS485, it is
necessary for each instrument to have its own device address for
communication purposes. First, it is necessary to connect each instrument
separately to give it an address. After that, all instruments can be connected
and addressed individually.
Einstellungen:
0 … 20 mA
4 … 20 mA
Settings:
00
...
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