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5, Rue de l’Église, L-1458 Luxembourg
www.hitec.lu | [email protected] | Tel.: (+352) 49 84 78 - 1 | Fax. (+352) 401303
File Name: HTCA_003-DADS-UserManual.docx
Document Type: End User Manual | Version date: 01/05/2010 | Last Printed: 15/02/2011
Page 66/81
Start Condition of a Measurement Recording
When the Absorptometer starts mixing, the application supervises the torque value. At the
beginning of the measurement the torque value is close to zero. When the torque value
starts rising, and becomes greater than a specified
Threshold
, the application considers the
measurement started and starts recording the torque values. This Threshold can be changed
in the
on the Quality Editor application.
End Condition of a Measurement Recording
The application considers the measurements terminated, in case one of the following
conditions appears. The motor and the burette filling will be stopped then.
Time after max.
torque
A torque higher than the Threshold has been detected and a certain
amount of time has elapsed. This time is defined in the HITEC Config
application, in the setup of the DADS terminal (End Time).
Torque limit
The torque becomes higher than the maximum allowed torque. This one
is defined in the HITEC Config application, in the Setup of the DADS
terminal (Torque Limit).
Polynomial and Test Results
After the measurement, a polynomial is calculated replacing the raw curve for the different
calculations. All the calculations are done with this polynomial. Refer to Test results Section
to get more information about the calculations done.
Validity of Test Sequence
(Absorptometer Type H only)
A test sequence, meaning different test parts, with different burette and motor speeds, can
be defined with the type H Absorptometer (DABS). A test sequence is valid only if the
measurement, determined by the start and end condition, falls into one single part of the
sequence. If this is not the case the test will be rejected.
Remarks
Qualities
have to be defined before test can be created with the test list editor.
When the torque becomes higher than a certain value (
Torque Limit
in HITEC
Config), during a measurement, the DADS terminal stops automatically the motor.
This is done for security reasons, independently of the application running on the PC.
The application will not go further until the torque becomes lower than this limit. In
this case the application seems to be blocked. In a normal situation this doesn't
happen, as the torque becomes low immediately after the motor stopped.
