7.3 Routine Cleaning
Chapter 7 Maintenance
54
pH SAFE Reader Operator Manual - Doc. No. 120001-09
If a failure has occurred the instrument will attempt to fix the QC value as
described in the subsequent sections.
NOTE:
A QC Test failure will disable the
Run Test
function of the instrument
until the QC Confidence has been repaired.
Fix QC Confidence
If the QC Confidence is outside of acceptable ranges, after the test results are
saved or printed the screen updates the following two displays:
During this step, the light collecting photodetectors in the instrument are
automatically adjusted so that the QC Confidence number changes and reaches
the appropriate value (1000 ± 10). First the Reference Channel is adjusted, then
the pH Channel is adjusted. Finally the result of the fixed QC Confidence is
displayed. If the QC Test fails to adjust itself correctly, something could be
wrong with the placement of the standard or the instrument. Rerun the QC Test
paying careful attention to temperature of the standard (22 ± 2°C), cleanliness of
the probe tip and correct placement of the standard on the probe. If failures
persist contact BCSI Technical Support.
Save/Print QC
Results
Following the Fix QC Confidence step, the user is given the option to save, print,
save and print, or discard the new QC Confidence value. Proceed in the same
manner as described in Section 5.6, Save/Print Test Results.
Following this step the software returns to the
Options Menu
.
7.3
Routine Cleaning
The
pH SAFE Reader
does not require any other routine or preventative
maintenance other than occasional cleaning of external surfaces.
When cleaning the
pH SAFE Reader
housing, use 70% ethanol, a mild
detergent or a non-organic laboratory disinfectant and a damp cloth.
DO NOT USE STRONG BLEACH (> 0.1% solution) OR ORGANIC
SOLVENTS!
DO NOT CLEAN THE FIBER OPTIC PROBE TIP WITH SOLVENTS OR
WATER!
7.4
Disposal Precautions
The
pH SAFE Reader
contains printed circuit board components which may
prohibit disposal in uncontrolled solid waste. Refer to local regulations for
proper disposal and/or recycling of the instrument.
FIXING: REF CHANNEL
QC Confidence: 1053
FIXING: PH CHANNEL
QC Confidence: 931
Содержание pH SAFE PH1000
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