IKA C 7000 Operating Instructions Manual page 34

Sub-menu 67,QLW
•
UHDOW
The parameter UHDOW (real-time print out) is used to set the time interval in sec-
onds for sending measured values to a printer. The values 0, 3, 12, or 24 sec-
onds can be set. The preset value is 0 seconds . If the value 0 is selected, the
transmission of readings to a printer) during a test is switched off. The presenta-
tion of data on the LCD-display is unaffected by the setting of this parameter.
,I D SULQWHU LV QRW FRQQHFWHG WKH SDUDPHWHU UHDOW PXVW EH VHW WR 
FDOFXO
In this sub-menu, you determine the calculation mode. Possible settings are:
VWG  W
VWG  W
FRDO  W
FRDO  W
The calculation mode must be set EHIRUH making a measurement, because sub-
sequent conversion to a different calculation mode is not possible.
The presetting is VWDQGDUG ZLWKRXW WLWUDWLRQ. The calculation modes VWDQGDUG and
FRDO differ in that, when FRDO is set, the calculation of gross and net calorific val-
ues is carried out under various conditions. If ZLWK WLWUDWLRQ is selected, the en-
ergy of acid formation is determined by titration.
XQLW
The results for gross and net calorific values can be calculated and presented in
the output protocol in several different units. The corresponding settings for the
parameters XQLW are:
MRXOH
%78
N:DWW
FDO
The preset unit is J/g.
SUH WLPH
In this menu, one of four values can be set for the pre-test time:
 VHFRQGV
 VHFRQGV
 VHFRQGV
 VHFRQGV
The preset value is  VHFRQGV.
7KH ORQJHU WKH SUHWHVW WLPH WKH PRUH DFFXUDWH WKH UHVXOW
,*1 WLPH
•
The setting of ,*1 WLPH determines the ignition time in milliseconds for the fixed
ignition wire. The works setting is 1000 ms, which is normally entirely adequate
to be sure that the cotton thread or the combustible crucible has ignited.
The preset ignition time should only be changed if the cotton thread or the com-
bustible crucible do not burn properly, or if platinum ignition wire is used. In
these cases, the ignition time should be increased in successive steps of not
more than 100 milliseconds. However, if combustion is incomplete, first check
the connections of the ignition wire to the electrodes in the decomposition ves-
sel.
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standard without titration
standard with titration
carbon without titration
carbon with titration
J/g
BTU/lb
kWh/kg
cal/g
®
IKA -WERKE C 7000
3DJH 
Ver. 07 09.07