ISR 12-LO/GS Manual
Settings / Parameter Descriptions
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25
Measuring mode
display
LED 1 = mono mode
LED 1 and 2 = ratio mode with additional pouring stream mode
LED M = metal mode
Setting keys: PAR:
:
ENT:
With the
PAR
button all available parameters are displayed in the
following description. Pushing the button again changes the display to the
next parameter, after the last parameter it changes to the actual
temperature reading.
With the arrow keys
and
all parameter settings can be displayed.
Pushing the button longer changes the settings in fast mode (the keys
and
ENT
are blocked if the keyboard is locked via the interface
commands or/and during a measurement in combination with a PC and
InfraWin).
If a parameter is changed with the arrow keys the new value must be
confirmed by pushing the ENT key. If it is not confirmed with ENT the
instrument is still operating with the previous parameter value. If no key is
pressed for approx. 30 s the display changes to the temperature
indication.
4.2.1
Special indications
Display
Description
7777
Warming-up time after switching on
8888
Measurement exceeds the end of sub range
8000 (blinking)
Laser targeting light on (analog output keeps the last
measurement value)
1° below beginning of sub
range
Indication after warming up time while no pouring stream
temperature is available
Display blinking
Signal strength in foundry mode is below the adjusted level.
4.3
Pouring stream mode
The start and end processes of the pouring disturb the temperature calculation and must be
separated. Unfortunately, these processes are not constant and vary for each pouring.
That is the reason why it is impossible to remove fixed periods for start and end processes for a
correct calculation of a pouring stream temperature. An intelligent measuring system is
necessary.
To enable the automatic operation of the system and to adapt it to the requirements of the
pouring machine, a few presettings must be done via software InfraWin.
Temperature sub range:
To enable the system to recognize the start and end of the pouring process, the beginning of
the temperature sub range must be set to a useful value (approx. 200 °C below the expected
pouring temp.)
Start-up condition or measuring condition
(0 to 1024 values, adjustable in %)
:
The measuring condition controls continuously if an adequate pouring stream is in the spot size
of the pyrometer. If the measuring temperature of the pyrometer exceeds the beginning of the
sub range, the control starts. It ends if the temperature is fallen below this temperature. Only if
the pyrometer detects continuously the adjusted values (0 to 1024) above the sub range, the
measurement time starts. The internal measuring time of the pyrometer is approx. 1 ms, i.e. to
detect 1024 temperature values is needs approx. 1 s.
