Operating Requirements - Heyl Testomat 808 Manual De Instrucciones

!
CAUTION
NOTE

Operating requirements

•
In order for Testomat
indicators in the pH-range 4 – 10.5!
®
tomat
•
Only operate the instrument with the parameters specified under
"Technical
data".
•
Attention! Water that is too cold can lead to foggy viewing win-
dows. Ensure that the temperature difference between the ambi-
ent temperature and the water temperature is not too great (be
mindful of the dew point!).
•
®
With Testomat instruments for water hardness monitoring, larger
quantities of heavy metal ions in the softened water might influ-
ence the colour reaction, especially iron above 0.5 mg/I, copper
above 0.1 mg/I and aluminium above 0.1 mg/l (brownish-red col-
our display).
•
If the measuring water contains more than 20 mg/I CO
acid), incorrect evaluations cannot be excluded. In this case, use
an aerator (e.g. special Heyl accessories).
•
The concentration of influencing contents can be determined by
using our colorimetric TESTOVAL
•
Important! Excessive carbonate hardness and also the ex-
istence of disinfectants in the water can result in erroneous
evaluations.
•
Replace the sight glass made of glass to sight glass made of
PMMA, if the silicate content in the sample water is higher than
15 mg/l and a white film is deposited on the glass.
•
Careful handling of the instrument increases both its operational
reliability and service life! Therefore, carry out a visual inspection
at regular intervals as described below:
- Has the use-by-date of the indicator expired?
- Are the hose connections of the dosing pump free of leaks?
- Is there any air inside the dosing hoses?
- Are all the water connections free of leaks?
- Are the doors of the instrument closed properly?
- Is the instrument heavily soiled?
- Are the measuring chamber and the drain duct/drain hose
clean?
•
Trouble-free operation is only possible when maintenance is car-
ried out on a regular basis! For more information, please refer to
the section entitled
•
If problems occur, please refer to the section entitled
sages/Troubleshooting
®
808 to operate reliably, use Heyl Tes-
®
test kit
Maintenance on page 39.
on page 34.
(carbonic
2
Error mes-
9