Technical data – Operating messages
GB
Light source:
Battery:
Auto-OFF:
Ambient conditions: 5 – 40 °C
CE:
To ensure maximum accuracy of test results, always use the reagent systems
supplied by the instrument manufacturer.
Hı
Lo
btLo
E 01
E 10 / E 11
E 20 /E 21
E 22
E 70
E 71
AL250_Urea_2 09/2010
Technical Data
LED, Filter ( = 660 nm)
9 V-block battery (Life approx. 600 tests, without display light)
Automatic switch off 20 minutes after last keypress
30–90% rel. humidity (non-condensing)
Certificate for Declaration of CE-Conformity
at www.aqualytic.de
Operating messages
Measuring range exceeded or excessive turbidity.
Result below the lowest limit of the measuring range.
Replace 9 V battery, no further tests possible.
Battery capacity is too low for the display backlight;
measurement is still possible.
Error codes
Light absorption too great. Reasons: e.g. dirty optics.
Calibration factor "out of range".
Too much light reaching the detector.
Battery capacity was too low during measurement. Change battery.
Urea:
Factory calibration incorrect / erase
Urea:
User calibration incorrect / erase
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