Haefely 2830, User Manual, Page: 80 / 124

72 Software
9.6 Sequence
With a sequence a entire measurement process as it is defined in the standards or according to
customer specifications can be automated. All manual activities like the heating and measurement
processes can be programmed with a sequence and executed automatically. A sequence can be
used either with one to two liquid test cells or one solid test cell.
Several sequences according to the IEC, ASTM, VDE, BS, SAC standards (referee and routine
procedures) for liquid insulating materials are pre installed. Additional a calibration sequence is
installed which heats up and measures the empty liquid test cell and copies the measurement
result Cair, the test cell temperature and the calibration date in the cell settings table (see chapter
9.3.2 Settings).
In the “Sequence” folder which is located in the data directory (see chapter 9.3.4 Options) are
block diagrams of the pre-installed sequences process as PDF file.
9.6.1 Run a Sequence
On the tab sheet Sequence sequences can be selected, programmed and started/stopped. As
for the C, Tan

and DC Resistivity measurements a heater and a test cell has to be selected.
(see chapter 9.3.3 Heating cell(s) and 9.1.3 Heater & Cell Status).
On the following screen shot is an example with one selected liquid test cells.