Hanna Instruments PCA 300 Series - Manual (Page 54)

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5 0 3 Clear previous minimum/maximum concen-
tration values
7 0 0 Set the display brightness level
7 0 1 Show the current reagent counter value (in
tens)
7 0 2 Reset the reagent counter
7 1 0 Set the alarm logic (low or high)
711 Show the current alarm logic
8 0 0
Show the last system error message (E08
to E10)
9 0 0
* Show the current value and allow calibra-
tion to a new value
9 0 1 * Show the calibration factor (0.00 to 1.00)
9 0 2 * Reset the calibration factor to 1.00
9 9 9 Adjust optical LED light intensity
* Diagnostic codes reserved to technical personnel only.