Haefely 2830, User Manual, Page: 95 / 124

Software
87
…
begin
Temp:=90;
SetHeat(Temp);
Wait(1800);
…
Heat_OFF;
end.
Heat_OFF;
Switch the heater controller OFF.
AC_ApplyVoltage(AVoltage, AFrequency: Double; ASample: String);
This procedure applies the AC test voltage <AVoltage> with the test frequency
<AFrequency> and it executes a C tan
δ
measurement (see chapter 9.4). A sample name
<ASample> can be set for the measurement which will be filled in the “Sample” column
of the result table. Before the test voltage will be applied a dialog pops up with an OK
and a Break button (see chapter 9.6.1
Run a Sequence ). The user has to click on the OK
button to go on. If the Break button is clicked on the sequence will be stopped and no
voltage will be applied.
After the test voltage is applied and the measurement is stable all measured values will
be stored in the table. The measurement results can be accessed in a sequence by the
function
GetMeasData
. To switch OFF the AC test voltage use the
AC_HVOff
procedure.
Sample:
var
ACVoltage: double;
ACFrequency: double;
DF: double;
SampleName: string;
…
begin
ACVoltage:=2000
ACFrequency:=50
SampleName:=’Oil Sample XX’;
AC_ApplyVoltage(ACVoltage, ACFrequency, SampleName);
DF:=GetMeasData(id_DF);
AC_HVOff;
…
end.
AC_HVOff;
Switch the AC power supply OFF.
DC_Measure(AVoltage: Double; ASec: Integer; ASample: String);
This procedure applies the DC voltage <AVoltage> for the time <ASec> time in seconds
and it executes a DC Resistivity measurement (see chapter 9.5 DC Resistivity ). A sample
name <ASample> can be set for the measurement which will be filled in the “Sample”
column of the result table. Before the test voltage will be applied a dialog pops up with
an OK and a Break button (see chapter 9.6.1
Run a Sequence ). The user has to click on