RADIOMETER ABL800 FLEX Operator's Manual page 130

3. Installation and setup
Analyzer settings,
Environment
Step
Setup
(continued)
(cont).
Check the barometer of the ABL800 FLEX analyzer against a known calibrated
barometer at least once a month. See ranges in chapter 13 in this manual.
To enter the ambient temperature, do the following:
Step
The concentrations of creatinine and creatine in calibration solutions depend on the
ambient temperature. This dependency is well-known and taken into account as
follows: the analyzer calculates the correct concentrations, using the equilibration
constants, time and the ambient temperature entered by user in the Environment
Setup (Menu > Utilities > Setup > General Setup > Analyzer settings).
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Continued
Action
Barometer pressure limits are 450-800 mmHg, or 60.0-106.7 kPa, or
2
450-800 torr.
The units are selected in the Setup program: Units.
Action
1. Touch the "Ambient temperature" box to activate.
2. Key in the new temperature, using the keypad.
Confirm with Enter.
For ambient temperatures between 15 °C and 28 °C or temperatures
fluctuating through the entire operating range 15-32 °C of the analyzer,
enter 23.5 °C. For ambient temperatures constantly above 28 °C and up to
32 °C enter 30 °C. Using these settings will provide analyzer performance
according to the performance characteristics specified in the ABL800
Reference manual, chapter 5.
In the temperature-controlled environment with constant temperature enter
the average ambient temperature in the Environment Setup in order to
improve the creatinine performance.
If an error in the keyed-in ambient temperature is about 5 %, the bias in the
reported cCrea results will be < 0.5 % unless creatine concentration in a
sample is ≥ cCrea concentration.
ABL800 FLEX Operator's Manual
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