Manual

Instruction Manual
HI 38017
Free & Total
Chlorine
Low and Medium
Range
Test Kit with
Checker Disc
Dear Customer,
Thank you for choosing a Hanna Product.
Please read the instruction sheet carefully before using the
test kit. It will provide you with the necessary information for
correct use of the kit. If you need additional information, do
not hesitate to e-mail us at [e-mail].
Remove the chemical test kit from the packing material and
examine it carefully to make sure that no damage has
occurred during shipping. If there is any noticeable damage,
notify your Dealer or the nearest Hanna office immediately.
Each kit is supplied with:
•
HI 93701-0 Free Chlorine Reagent, packets (100 pcs);
•
HI 93711-0 Total Chlorine Reagent, packets (100 pcs);
• Demineralizer Bottle with filter cap for about 12 liters
of deionized water (depending on the hardness level
of water to be treated)
;
• 1 checker disc (containing a mirror, a mirror holder
and the disc);
• 2 glass vials with caps
;
• 1 plastic pipette (3 mL).
Note: Any damaged or defective item must be returned in its
original packing materials.
ISTR38017R2 01/07
Chlorine is the most commonly used water disinfectant in
applications that vary from treatment of drinking water and
wastewater, pool and spa sanitization, to food processing
and sterilization. Chlorine present in water binds with
bacteria, leaving only a part of the original quantity (free
chlorine) to continue its disinfecting action. If the free chlorine
level is improper with respect to pH, water will have an
unpleasant taste and odor and the disinfecting potential of
the chlorine will be diminished.
Free chlorine reacts with ammonium ions and organic
compounds to form chlorine compounds resulting in
diminished disinfecting capabilities compared with free
chlorine. Chlorine compounds together with chloramines
form combined chlorine. Combined chlorine and free chlorine
together result in total chlorine.
While free chlorine has a much higher disinfectant potential,
combined chlorine has a much higher stability and has a
lesser volatility.
Note: mg/L is equivalent to ppm (parts per million).
The reaction between chlorine and the DPD reagent causes a
pink tint in the sample which is proportional to the chlorine
concentration.
READ THE ENTIRE INSTRUCTIONS BEFORE USING THE KIT
• To measure chlorine in the 0-0.7 mg/L range, verify
that the mirror, its holder and the disc are pre-installed
in the checker disc. If not, install them as shown in the
figure.
• Use the pipette to fill
each glass vial with 10
mL of sample (up to
the mark).
• Insert one of the vials into the left hand opening of the
checker disc. This is the blank.
• Remove the cap and fill
the Demineralizer Bottle
with tap water.
• Replace the cap and
shake gently for at least
2 minutes. The
demineralized water is
now ready.
• Flip open the top of the Demineralizer Bottle cap. By
gently squeezing the bottle, add demineralized water to
the other vial up to the 20 mL mark. Replace the cap
and shake to mix.
10 mL
• Remove the cap and add the specific test reagent:
Free Chlorine: 1 packet of Total Chlorine: 1 packet of
HI 93701-0 Reagent. HI 93711-0 Reagent.
• Replace the cap and mix.
• In the case of Total Chlorine
determination, wait for 2
minutes to allow reaction
to occur. This is the reacted
sample.
• Remove the cap and insert
the reacted sample into the right hand opening of the
checker disc.
• Hold the checker disc so that a light source illuminates
the samples from the top.
Range 0 to 0.7 mg/L (ppm) as Chlorine (LR)
0 to 3.5 mg/L (ppm) as Chlorine (MR)
Smallest Increment LR: 0.02 mg/L
MR: 0.1 mg/L
Analysis Method Colorimetric
Sample Size 10 mL (LR), 5 mL (MR)
Number of Tests 100 Free Cl
2
/ 100 Total Cl
2
Case Dimensions 235x175x115 mm (9.2x6.9x4.5")
Shipping Weight 696 g (24.6 oz.)
www.hannainst.com
Specifications
Significance and use
Chemical Reaction
Instructions