Hanna Instruments HI97101 User manual

INSTRUCTION MANUAL
HI97101
pH, Free Chlorine,
Total Chlorine, Cyanuric Acid,
Iron Low Range,
Bromine & Iodine
Photometer

All rights are reserved. Reproduction in whole or in part is prohibited without the written consent
of the copyright owner, Hanna Instruments Inc., Woonsocket, Rhode Island, 02895, USA.
Thank you for choosing a Hanna Instruments product.
Please read this instruction manual carefully before using this instrument.
This manual will provide you with the necessary information for correct
use of this instrument, as well as a precise idea of its versatility.
If you need additional technical information, do not hesitate to e‑mail
us at [email protected] or view our worldwide contact list at
www.hannainst.com.
Dear
Customer,

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TABLE OF CONTENTS
TABLE OF CONTENTS
1. PRELIMINARY EXAMINATION ..........................................................................5
2. SAFETY MEASURES........................................................................................6
3. ABBREVIATIONS ...........................................................................................6
4. SPECIFICATIONS............................................................................................7
5. DESCRIPTION................................................................................................9
5.1. GENERAL DESCRIPTION & INTENDED USE..............................................9
5.2. FUNCTIONAL DESCRIPTION.................................................................10
5.3. PRECISION & ACCURACY.....................................................................11
5.4. PRINCIPLE OF OPERATION..................................................................11
5.5. OPTICAL SYSTEM................................................................................12
6. GENERAL OPERATIONS.................................................................................13
6.1. METER VALIDATION: CAL CHECK & CALIBRATION...................................13
6.2. GLP...................................................................................................15
6.3. LOGGING DATA & LOG RECALL ............................................................. 16
6.4. GENERAL SETUP ................................................................................17
6.5. REAGENTS & ACCESSORIES.................................................................19
6.6. CONTEXTUAL HELP............................................................................. 19
6.7. BATTERY MANAGEMENT ..................................................................... 20
7. PHOTOMETER..............................................................................................21
7.1. METHOD SELECTION .......................................................................... 21
7.2. COLLECTING & MEASURING REAGENTS AND SAMPLES...........................21
7.3. CUVETTE PREPARATION...................................................................... 22
8. METHOD PROCEDURE ..................................................................................24
8.1. pH.................................................................................................... 24
8.2. FREE CHLORINE (POWDER REAGENT) .................................................. 26
8.3. FREE CHLORINE (LIQUID REAGENT)..................................................... 28
8.4. TOTAL CHLORINE (POWDER REAGENT).................................................31
8.5. TOTAL CHLORINE (LIQUID REAGENT) ...................................................33
8.6. CYANURIC ACID..................................................................................36
8.7. IRON LOW RANGE..............................................................................38
8.8. BROMINE.......................................................................................... 41
8.9. IODINE .............................................................................................43

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9. WARNING & ERROR DESCRIPTIONS...............................................................45
10. BATTERY REPLACEMENT ............................................................................. 47
11. ACCESSORIES............................................................................................ 48
11.1. REAGENT SETS.................................................................................48
11.2. OTHER ACCESSORIES .......................................................................49
CERTIFICATION.................................................................................................50
RECOMMENDATIONS FOR USERS.......................................................................50
WARRANTY ......................................................................................................50

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PRELIMINARY EXAMINATION
1. PRELIMINARY EXAMINATION
Remove the instrument and accessories from the packaging and examine it carefully.
For further assistance, please contact your local Hanna Instruments Office or email us
at [email protected].
Each HI97101C is delivered in a rugged carrying case and is supplied with:
• Sample cuvette (2 pcs.)
• Sample cuvette cap (2 pcs.)
• Plastic stopper (2 pcs.)
• A ZERO - CAL Check Cuvette A
• HI97701B - CAL Check Cuvette B for Free and Total Chlorine (Powder & Liquid)
• HI97710B - CAL Check Cuvette B for pH
• HI97716B - CAL Check Cuvette B for Bromine
• HI97718B - CAL Check Cuvette B for Iodine
• HI97722B - CAL Check Cuvette B for Cyanuric Acid
• HI97746B - CAL Check Cuvette B for Iron Low Range
• Cloth for wiping cuvettes
• Scissors
• 1.5V AA Alkaline batteries
• CAL Check standard certificate
• Instrument quality certificate
• Instruction manual
Each HI97101 is delivered in a cardboard box and is supplied with:
• Sample cuvette (2 pcs.)
• Sample cuvette cap (2 pcs.)
• Plastic stopper (2 pcs.)
• 1.5V AA Alkaline batteries
• Instrument quality certificate
• Instruction manual
Note: Save all packing material until you are sure that the instrument works
correctly. Any damaged or defective item must be returned in its original packing
material with the supplied accessories.

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SAFETY MEASURES
2. SAFETY MEASURES
• The chemicals contained in the reagent kits may be hazardous if
improperly handled.
• Read the Safety Data Sheets (SDS) before performing tests.
• Safety equipment: Wear suitable eye protection and clothing when
required, and follow instructions carefully.
• Reagent spills: If a reagent spill occurs, wipe up immediately and rinse
with plenty of water. If reagent contacts skin, rinse the affected area
thoroughly with water. Avoid breathing released vapors.
• Waste disposal: For proper disposal of reagent kits and reacted samples,
contact a licensed waste disposal provider.
3. ABBREVIATIONS
mg/L milligrams per liter (ppm)
mL milliliter
°C degree Celsius
°F degree Fahrenheit
DIW Deionized Water
EPA US Environmental Protection Agency
DPD N,N-diethyl-p-phenylenediamine
GLP Good Laboratory Practice
HDPE High Density Polyethylene
LED Light Emitting Diode
LR Low Range
NIST National Institute of Standards and Technology
ABBREVIATIONS

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SPECIFICATIONS
4. SPECIFICATIONS
pH
Range 6.5 to 8.5 pH
Resolution 0.1 pH
Accuracy ±0.1 pH of reading at 25 °C
Method Adaptation of the Phenol Red Method
Chlorine
(All Methods)
Range 0.00 to 5.00 mg/L (as Cl2)
Resolution 0.01 mg/L
Accuracy ±0.03 mg/L ±3% of reading at 25 °C
Method Adaptation of the US EPA Method 330.5,
DPD Colorimetric Method
Cyanuric Acid
Range 0 to 80 mg/L (as CYA)
Resolution 1 mg/L
Accuracy ±1 mg/L ±15% of reading at 25 °C
Method Adaptation of the Turbidimetric Method
Iron LR
Range 0.00 to 1.60 mg/L (as Fe)
Resolution 0.01 mg/L
Accuracy ±0.01 mg/L ±8% of reading at 25 °C
Method Adaptation of the TPTZ Method
Bromine
Range 0.00 to 10.00 mg/L (as Br2)
Resolution 0.01 mg/L
Accuracy ±0.08 mg/L ±3% of reading at 25 °C
Method
Adaptation of Standard Methods for the
Examination of Water and Wastewater,
18th Edition, DPD Method
Iodine
Range 0.0 to 12.5 mg/L (as I2)
Resolution 0.1 mg/L
Accuracy ±0.1 mg/L ±5% of reading at 25 °C
Method
Adaptation of Standard Methods for the
Examination of Water and Wastewater,
18th Edition, DPD Method

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SPECIFICATIONS
Measurement
System
Light source Light Emitting Diode
Bandpass filter 525 nm
Bandpass filter
bandwidth 8 nm
Bandpass filter
wavelength accuracy ±1.0 nm
Light detector Silicon photocell
Cuvette type Round 24.6 mm diameter (22 mm inside)
Additional
Specifications
Auto logging 50 readings
Display 128 x 64 pixel B/W LCD with backlight
Auto-off After 15 minutes of inactivity
(30 minutes before a READ measurement)
Battery type 1.5 V AA Alkaline (3 pcs.)
Battery life > 800 measurements (without backlight)
Environment 0 to 50 °C (32 to 122 °F);
0 to 100% RH, non-serviceable
Dimensions 142.5 x 102.5 x 50.5 mm (5.6 x 4.0 x 2.0")
Weight
(with batteries) 380 g (13.4 oz.)
Case ingress
protection rating IP67, floating case

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DESCRIPTION
5. DESCRIPTION
5.1. GENERAL DESCRIPTION & INTENDED USE
The HI97101 is an auto-diagnostic portable meter that benefits from Hanna’s years
of experience as a manufacturer of analytical instruments. It has an advanced optical
system that uses a Light Emitting Diode (LED) and a narrow band interference filter that
allows for accurate and repeatable readings.
The optical system is sealed from outside dust, dirt and water. The meter uses an
exclusive positive-locking system to ensure that the cuvettes are placed into the holder
in the same position every time.
With the CAL Check™ functionality, users are able to validate the performance of the
instrument at any time and apply a user calibration (if necessary). Hanna Instruments
CAL Check cuvettes are made with NIST traceable standards.
The built-in tutorial mode guides users step-by-step through the measurement process. It
includes all steps required for sample preparation, the required reagents and quantities.
The HI97101 meter measures seven important parameters in the treatment and
disinfection of drinking water, wastewater and swimming pools.
Bromine and chlorine are widely used disinfectants. In order for chlorine to be effective
the pH of the water should be less then 8.0. The method for pH is an adaptation of the
Phenol Red Method, for chlorine is an adaptation of the US EPA Method 330.5, DPD
Colorimetric Method and for bromine is an adaptation of Standard Methods for the
Examination of Water and Wastewater, 18th Edition, DPD Method.
Cyanuric Acid is added to increase the life of chlorine, without it chlorine levels can be
reduced by up to 90% in hours, when exposed to sunlight. The method for cyanuric
acid is an adaptation of the Turbidimetric Method.
Iron is present in drinking water in low concentrations, the solubility of iron compounds
increases at lower pH values. The method for iron is an adaptation of the TPTZ Method.
Iodine is used for cleaning and disinfection, and can end up in surface waters through
evaporation and rainfall. The method for iodine is an adaptation of Standard Methods
for the Examination of Water and Wastewater, 18th Edition, DPD Method.
The HI97101 photometer is a compact and versatile meter suitable for field or bench
measurements, featuring a:
• Sophisticated optical system
• Meter validation using certified CAL Check cuvettes
• Tutorial mode guides the user step-by-step
• Auto logging
• Waterproof IP67, floating case
• GLP features

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DESCRIPTION
5.2. FUNCTIONAL DESCRIPTION
1. ON/OFF power button 3. Liquid Crystal Display (LCD) 5. Indexing mark
2. Keypad 4. Cuvette holder 6. Battery cover
Keypad Description
The keypad contains 3 direct keys and 3 functional keys with the following functions:
Press the functional key to perform the function displayed above it on the LCD.
Press and hold to power off/on. Press briefly to return to the previous screen.
Press to access the menu screen.
Press to display the context-sensitive help menu.