YSI pHotoFlex Series - Manual (Page 23)

23 ba76126e01 03/2013
Note: Before using the test with your photometer for the first time, determine the reagent blank
value.
YSI model no.: Cl2-1 TP
Category: RT (reagent test)
Cell: 28 mm
Measuring range: 0.02 - 2.00 mg/l Cl
2
Display in mmol/l possible
Check the pH value of
the sample.
Desired range: pH 6-7.
Correct with diluted
sodium hydroxide
solution or sulfuric acid
as necessary. Pipette 10.0 ml of sample
into the empty cell. Add the contents of a
VARIO Chlorine FREE-
DPD/F10 powder pack
and close the cell with
the screw cap. Mix the contents by
swaying (for
20 seconds). Insert the cell in the
photometer cell shaft
within one minute and
start measurement.
Notes:
• We recommend to determine a new reagent blank value (deionized water instead of sample) for each test package started.
• The test sample should be pink. Very high chlorine concentrations in the sample cause yellow solutions and too low
measured values. Dilute the sample in this case.
pH 6-7
Chlorine (free) vario
Program no.
325
*RN325*