Calibration By Standard; General; Program Calibration; Perform Linear Tests - Selecta S-2000 Manual De Instrucciones

MANUAL DE INSTRUCCIONES CODIGO 80202 REV A
Screen 8.1
Screen 8.2
Screen 8.5 "List screen"
J
.P. SELECTA s.a.u.
Feb/2012

8 Calibration by standard

8.1 General

Certain tests require calibration by 1 or more standards. Calibration results are stored
in the flash memory of the analyser and can be used again for future measurement.
Calibration can be programmed and subsequently done for different measurement
mode: Endpoint or Twopoint. For Endpoint, the calibration could be with/without
Reagent Blank and/or Sample Blank. For Twopoint, the calibration could only be with
or without Reagent Blank.
The calibration by standard should be performed depending on the stability of the
reagents, batch of the reagent, and type of test. The new ones will overwrote the
previous calibration data in the flash memory.

8.2 Program calibration

The calibration parameters could be programmed in the menu "parameter modify",
see the screen 8.1. The setting was described in paragraph 6.10

8.3 Perform linear tests

For linear tests, the relation between Absorbance and Concentration is a (linear)
straight line. This test usually is calibrated with one or more standard(s) of 1 con-
centration and with or without Reagent Blank.
Select "Calibration" in the "test procedure" menu:
1. Measure the standard
Instruction window will appear: Standard "#"
Hold the standard sample "#" under the sample tube and press Sample button.
The programmed volume will be aspirated and measured. The process and result
of the measurement will be displayed.
2. Repeat the measure
Instruction window: Standard "#", Repeat #
3. Abs / Concentration
The result will be displayed on the result window, and the standard curve will be
displayed in same time. User can save and print the result.

8.4 Perform the calibration of non linear tests

Non linear tests are those tests where the relation between Absorbance and Concen-
tration is not linear. These tests are usually calibrated with more than 1 standard of
different concentrations. The analyser has a special arithmetic to link the calibration
points to a calibration curve. The measurements for patient or controls are then
interpolated automatically depending on the curve.
The calibration can be run similar as 8.3

8.5 List calibration

Select "Calibration" in the "Main menu", to list the calibrations. (Screen 8.5)
1) Select the test which one will be checked. Click "OK".
2) The result of the test will be displayed on the screen.
3) Print the result by selecting the "Print".
4) Select "Exit" to go back to the above menu.
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