RADIOMETER ABL90 FLEX User Manual

5. Sensors and optical system ABL90 FLEX reference manual
5-10
 Electronical checks
(to check the sensor impedance and leak current.)
 Measurement preparation checks
(to ensure that the analyzer, after each activity, is ready for a new
measurement.)
 Consumable lifetime checks
(To check the expiration date and lifetime of the sensor cassette. To check the
expiration date, lifetime and number of remaining tests of the solution pack.)
Software checks:
During the software check, the correct version software in the DMS is checked
against the correct version of the wet section. In case of software consistency
errors the analyzer does not allow measurements.
Communication checks:
During the communication check, the communication between the PC and
embedded systems is checked. In case of errors the analyzer automatically tries
to re-establish the connection.
Temperature checks:
During temperature checks, the temperatures of the sensors,
spectrophotometer, cuvette and barometer (internal temperature) are checked.
If a check of the continuous temperature monitoring fails the analyzer enters
the User intervention required mode that is automatically left again if the
temperature check is ok. After power on or replacements the analyzer waits for
the temperatures to be within limits. In case of temperature drift of the Oxi
spectrophotometer, an Oxi calibration is set pending and performed in
connection with a measurement, if no scheduled calibration has been
performed, thus compensating for the drift. The temperature is monitored and
logged during aspiration of sample, QC and Cal solutions.
Sensor checks:
During sensor response checks, the signal responses of the sensors are
checked. Stability errors are reported by an error message and a "?" next to the
parameter results.
During calibration checks, the calibration values of the sensors are checked to
ensure that the analyzer is ready for measurement. In case of calibration errors
(except severe fluid transport errors) the calibration is retried. The User
intervention required mode is not entered if no other severe errors are
encountered.
Mechanical checks:
During flow selector checks, the calibration/positioning of the flow selector in
the solution pack is checked. If the flow selector calibration fails, the activity is
stopped and retried. If the second calibration fails, the User intervention
required mode is entered.
During pump checks, the volume of the pump flow is checked. If the pump
calibration fails, the activity is stopped and retried. If the second calibration
fails, the User intervention required mode is entered.
Electronical checks:
During leak current checks, the leak current between the reference electrode
and the chassis is checked to detect liquid leaks in the solution pack. If the
check fails, the check is repeated. If the second check fails, the User
intervention required mode is entered.
During impedance checks, the impedance between each pH,
cK
+
, cNa
+
, cCa
2+
,
cCl
–
sensor and the reference electrode is checked. The internal impedance of

RADIOMETER ABL90 FLEX Specifications

General

Brand	RADIOMETER
Model	ABL90 FLEX
Category	Measuring Instruments
Language	English