IS 12-TSP / IGA 12-TSP Manual
Settings / parameter descriptions
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24
4.6
Clear time of the maximum value storage (t
CLEAR
)
If the maximum value storage is switched on always the highest last
temperature value will be displayed and stored. The storage has to be cleared
at regular intervals for exchanging by a new and actual value.
This feature is particularly useful when fluctuating object temperatures cause
the display or the analog outputs to change too rapidly, or the pyrometer is
not constantly viewing an object to be measured. In addition, it may also be
beneficial to periodically delete and reset the stored maximum values.
The following settings are possible:
OFF:
At clear time “OFF“ the max. value storage is switched off and only momentary
values are measured.
0.01...25 s:
If any clear time between 0.01 s and 25 s is set, the maximum value is estimated and
held in double storage mode after the entered time, the storage will be deleted.
extern:
The external clearing can be activated and used within an own software (see section
7, Data format UPP
) or via an external contact (for connection see
3.1.1
Connector pin assignment
on the back side of the pyrometer). In this case, the
storage operates only in single storage, because only a single deletion mechanism is
used.
auto:
The “auto” mode is used for discontinuous measuring tasks. For example, objects
are transported on a conveyer belt and pass the measuring beam of the pyrometer
only for a few seconds. Here the maximum value for each object has to be indicated.
In this 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 when the temperature of the new hot object exceeds the low limit “from“
of the sub range by 1% or at least 2 °C. If a lower limit is not entered, the maximum
value storage will be deleted whenever the lower level of the full measuring range
has been exceeded.
hold:
The function “hold” enables to freeze the current temperature reading at any
moment. For this an external push button or switch has to be connected, which
holds the temperature reading as long as the contacts are closed.
Operation Note:
Dependent on the settings the maximum value storage either works in
single storage mode or in double storage mode:
Single Storage
Mode:
The single storage is used when you want to reset the stored value using an
external impulse via one contact closure from an external relay (i.e. between
two measured objects). The relay contact is connected directly to the
pyrometer between pins J and K. This mode allows a new value to be
established, after each impulse from the reset signal
.
Settings:
0.00 s (= OFF)
0.01 s
. . .
25 s
extern
auto
Hold
