Hanna Instruments HI 38017 User Manual
Instruction Manual
HI 38017
Free & Total
Chlorine
Low and Medium
Range
SPECIFICATIONSSPECIFICATIONS
SPECIFICATIONS
SPECIFICATIONSSPECIFICATIONS
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 200
Case Dimensions 235x175x115 mm (9.2x6.9x4.5")
Shipping Weight 696 g (24.6 oz.)
INSTRUCTIONSINSTRUCTIONS
INSTRUCTIONS
INSTRUCTIONSINSTRUCTIONS
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.
• Remove the cap and add the specific test reagent:
Free Chlorine: 1 packet of Total Chlorine: 1 packet of
DPD Free Chlorine reagent. DPD Total Chlorine reagent.
Test Kit with
Checker Disc
www.hannainst.com
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 tech@hannainst.com.
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.
;
;
SIGNIFICANCE AND USESIGNIFICANCE AND USE
SIGNIFICANCE AND USE
SIGNIFICANCE AND USESIGNIFICANCE AND USE
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).
CHEMICAL REACTIONCHEMICAL REACTION
CHEMICAL REACTION
CHEMICAL REACTIONCHEMICAL REACTION
The reaction between chlorine and the DPD reagent causes
a pink tint in the sample which is proportional to the
chlorine concentration.
ISTR38017 02/00 PRINTED IN ITALY
• 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
• 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.
• Keep the checker disc at a distance of 30-40 cm (1216") from the eyes to match the color. Rotate the disc
while looking at the color test windows and stop when
you find the color match. Read the value in the result
window and divide it by 5 to obtain mg/L (or ppm) of
Chlorine.
• To measure chlorine in the
0-3.5 mg/L range, remove
the disc, mirror and its holder,
if pre-installed. Then install
just the disc as shown here.
• Use the pipette to fill each glass vial with
5 mL of sample (up to the mark) and
insert one of them into the left hand
opening of the checker disc. This is the
blank.
• Add to the other vial demineralized water up to the 10
mL mark and shake to mix.
• Then add to the vial the specific test reagent:
Free Chlorine: 1 packet of Total Chlorine: 1 packet of
DPD Free Chlorine reagent. DPD Total Chlorine reagent.
5 mL
you find the color match. Read the value in the result
window directly in mg/L (or ppm) of Chlorine.
For best results: Perform the reading three times and take
the average value (divide by 3 the sum of the three
numbers). Intensely colored samples will make the color
matching difficult and they should be adequately treated
before performing the test. Suspended matter in large
amounts should be removed by prior filtration.
Caution: Ultraviolet radiation may cause fading of colors.
When not in use, keep the disc protected from light,
in a cool and dry place.
Interferences: bromine, iodine, fluorine, ozone, oxidized
manganese and chromium.
REFERENCESREFERENCES
REFERENCES
REFERENCESREFERENCES
Adaptation of the EPA recommended DPD method 330.5.
HEALTH AND SAFETYHEALTH AND SAFETY
HEALTH AND SAFETY
HEALTH AND SAFETYHEALTH AND SAFETY
The chemicals contained in this kit may be hazardous if
improperly handled. Read the relevant Health and Safety
Data Sheet before performing this test.
• 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 back of the
windows.
• Keep the checker disc at a distance of 30-40 cm (1216") from the eyes to match the color. Rotate the disc
while looking at the color test windows and stop when
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