Hanna Instruments C 214 User manual

Instruction Manual
C 214
Multiparameter Bench
Photometer
for
Wastewater Treatment
Application
www.hannainst.com
These Instruments are in
Compliance with the CE Directives
MANC214R3 10/04
TECHNICAL SERVICE CONTACTS
Australia:
Tel. [phone] • Fax [phone]
e-mail: [email protected]
China:
Tel. [phone] • Fax [phone]
e-mail: [email protected]
Egypt:
Tel. & Fax [phone]
e-mail: [email protected]
Germany:
Tel. [phone] • Fax [phone]
e-mail: [email protected]
Greece:
Tel. [phone] • Fax [phone]
e-mail: [email protected]
Indonesia:
Tel. [phone] • Fax [phone]
e-mail: [email protected]
Japan:
Tel. [phone] • Fax [phone]
e-mail: [email protected]
Korea:
Tel. [phone] • Fax [phone]
e-mail: [email protected]
Malaysia:
Tel. [phone] • Fax [phone]
e-mail: [email protected]
Norway:
Tel. [phone] • Fax [phone]
e-mail: [email protected]
Singapore:
Tel. [phone] • Fax [phone]
e-mail: [email protected]
South Africa:
Tel. [phone] • Fax [phone]
e-mail: [email protected]
United Kingdom:
Tel. [phone] • Fax [phone]
e-mail: [email protected]
USA:
Tel. [phone] • Fax [phone]
e-mail: [email protected]
For additional Technical Support in your local lan-
guage, see www.hannainst.com

2
Dear Customer,
Thank you for choosing a Hanna product. Please read this instruction
manual carefully before using the meter. This manual will provide you
with the necessary information for the correct use of the instrument. If
you need additional technical information, do not hesitate to e-mail us
at [email protected]. These instruments are in compliance with
directives.
TABLE OF CONTENTS
PRELIMINARY EXAMINATION ........... 3
ABBREVIATIONS ............................. 3
GENERAL DESCRIPTION ................... 4
SPECIFICATIONS ............................. 5
PRECISION AND ACCURACY ............. 5
PRINCIPLE OF OPERATION ............... 6
FUNCTIONAL DESCRIPTION .............. 8
GUIDE TO DISPLAY CODES .............. 9
TIPS FOR AN ACCURATE
MEASUREMENT ............................12
PARAMETERS REFERENCE TABLES .. 17
HEALTH & SAFETY ........................ 19
OPERATIONAL GUIDE .................... 20
AMMONIA LOW RANGE ................. 22
AMMONIA HIGH RANGE ................ 25
CHLORINE, FREE ........................... 28
CHLORINE, TOTAL .........................31
NITRATE .......................................34
NITROGEN, TOTAL LR ....................37
NITROGEN, TOTAL HR ................... 42
OXYGEN DEMAND, CHEMICAL LR ....47
OXYGEN DEMAND, CHEMICAL MR .. 50
OXYGEN DEMAND, CHEMICAL HR ... 53
PHOSPHORUS, REACTIVE .............. 56
PHOSPHORUS, ACID HYDROLYZABLE ... 59
PHOSPHORUS, TOTAL ................... 63
PHOSPHORUS, REACTIVE HR ......... 67
PHOSPHORUS, TOTAL HR .............. 70
INTERFACE WITH PC ..................... 74
STANDARD METHODS ................... 76
BATTERY REPLACEMENT ................76
ACCESSORIES ............................... 77
CE DECLARATION OF CONFORMITY .... 78
WARRANTY ...................................79
HANNA LITERATURE ...................... 79
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.
79
WARRANTY
All Hanna Instruments meters are warranted for two years against
defects in workmanship and materials when used for its intended
purpose and maintained according to the instructions.
This warranty is limited to repair or replacement free of charge.
Damages due to accident, misuse, tampering or lack of prescribed
maintenance are not covered.
If service is required, contact your dealer. If under warranty, report the
model number, date of purchase, serial number and the nature of the
failure. If the repair is not covered by the warranty, you will be notified
of the charges incurred.
If the instrument is to be returned to Hanna Instruments, first obtain a
Returned Goods Authorization Number from the Customer Service
Department and then send it with shipment costs prepaid. When
shipping any instrument, make sure it is properly packaged for complete
protection.
To validate your warranty, fill out and return the enclosed warranty
card within 14 days from the date of purchase.
Hanna Instruments reserves the right to modify the design, construction
and appearance of its products without advance notice.
HANNA LITERATURE
Hanna publishes a wide range of catalogs and handbooks for an
equally wide range of applications. The reference literature currently
covers areas such as:
• Water Treatment
• Process
• Swimming Pools
• Agriculture
• Food
• Laboratory
and many others. New reference material is constantly being added to
the library.
For these and other catalogs, handbooks and leaflets contact your
dealer or the Hanna Customer Service Center nearest to you. To find
the Hanna Office in your vicinity, check our home page at
www.hannainst.com.

3
PRELIMINARY EXAMINATION
Please examine this product carefully. Make sure that the instrument
is not damaged. If any damage occured during shipment, please
notify your Dealer.
Each Meter is supplied complete with:
•Five Sample Vials
•Two 9 V Batteries
•12 VDC Transformer (HI 710005 or HI 710006)
•Instruction Manual
Note:Save all packing material until you are sure that the instrument
works correctly. Any defective item must be returned in its
original packing with the supplied accessories.
°C:degree Celsius
COD:Chemical Oxygen Demand
EPA:US Environmental Protection Agency
°F:degree Fahrenheit
g/L:grams per liter. g/L is equivalent to ppt (part per thoushand)
HR:high range
LR:low range
mg/L:milligrams per liter. mg/L is equivalent to ppm (part per million)
mL:milliliter
MR:medium range
µg/L:micrograms per liter. µg/L is equivalent to ppb (part per billion)
ABBREVIATIONS
78
Recommendations for Users
Before using these products, make sure that they are entirely suitable for your specific application
and for the environment in which they are used.
Operation of these instruments may cause unacceptable interferences to other electronic equip-
ments, this requiring the operator to take all necessary steps to correct interferences.
Any variation introduced by the user to the supplied equipment may degrade the instruments' EMC
performance.
To avoid damages or burns, do not put the instrument in microwave ovens. For yours and the
instrument safety do not use or store the instrument in hazardous environments.
CE DECLARATION OF CONFORMITY

4
GENERAL DESCRIPTION
C 99 & C 200 Series is a line of 17 different bench, microprocessor-
based photometers to measure more than 50 different parameters in
water and wastewater. These multipurpose meters are manufactured
to measure the most important parameters of the application they
have been especially designed for:
C 99 Laboratories, with COD C 200 Laboratories
C 203 Aquaculture C 205 Boilers & Cooling Towers
C 206 Environmental Testing C 207 Industrial Wastewater
C 208 Water Conditioning C 209 Education
C 210 Pulp & Paper Mills C 211 Chemical Manufacturers
C 212 Power Plant Utilities C 213 Municipal Wastewater
C 214 Wastewater Treatment Applic. C 215 Nutrient Analyses
C 216 Pool & Spa Applic. C 218 Environmental Applic.
C 226 Pool & Spa Applic.
The reagents are in liquid or powder form and are supplied in bottles
and ready-to-use vials or in packets. The amount of reagent is precisely
dosed to ensure the maximum repeatability.
Display codes aid the user in routine operations.
The meters have an auto-shut off feature that will turn off the instrument
after 10 minutes of non-use.
The C 99 & C 200 Series can be connected to a personal computer via
the HI 920010 three wire RS 232 cable. The HI 92000 Hanna
Windows
®
Compatible Software aids the user to manage all test data.
77
REAGENT SETS
HI 93701-01 100 free chlorine tests
HI 93701-03 300 free chlorine tests
HI 93711-01 100 total chlorine tests
HI 93711-03 300 total chlorine tests
HI 93754A-25 25 COD LR tests
HI 93754B-25 25 COD MR tests
HI 93754C-25 25 COD HR tests
HI 93758A-50 50 reactive phosphorus tests
HI 93758B-50 50 acid hydrolyzable phosphorus tests
HI 93758C-50 50 total phosphorus tests
HI 93763A-50 50 reactive phosphorus HR tests
HI 93763B-50 50 total phosphorus HR tests
HI 93764A-25 25 ammonia LR tests
HI 93764B-25 25 ammonia HR tests
HI 93766-50 50 nitrate tests
HI 93767A-50 50 total nitrogen LR tests
HI 93767B-50 50 total nitrogen HR tests
OTHER ACCESSORIES
C115-00300 5 mL graduated syringe
C9800-01 Hanna Reactor (115 VAC)
C9800-02 Hanna Reactor (230 VAC)
HI 710005 110VAC to 12VDC voltage adapter
HI 710006 220VAC to 12VDC voltage adapter
HI 721310 9V battery (10 pcs)
HI 731311 glass vials with cap (5 pcs)
HI 731318 Tissue for wiping cuvets (4 pcs)
HI 731340 200 µL automatic pipette
HI 731341 1000 µL automatic pipette
HI 731342 2000 µL automatic pipette
HI 731350 tips for 200 µL automatic pipette (25 pcs)
HI 731351 tips for 1000 µL automatic pipette (25 pcs)
HI 731352 tips for 2000 µL automatic pipette (4 pcs)
HI 740142 1 mL graduated syringe
HI 740143 1 mL graduated syringe (6 pcs)
HI 740144 Pipette tip (6 pcs)
HI 740157 Plastic refilling pipette (20 pcs)
HI 740216 Test tube cooling rack (25 holes)
HI 740217 Laboratory bench safety shield
HI 92000 Windows
®
Compatible Software
HI 920010 PC connection cable
HI 93703-50 Cuvets cleaning solution (230 mL)
ACCESSORIES

5
SPECIFICATIONS
Light Life Life of the instrument
Light Detector Silicon Photocell
Environment 0 to 50°C (32 to 122°F);
max 90% RH non-condensing
Power Supply 2 x 9 V batteries / 12 to 20 VDC through
voltage adapter
Auto-Shut off After 10' of non-use
Dimensions 230 x 165 x 70 mm (9.0 x 6.5 x 2.8")
Weight 640 g (22.6 oz.)
For specifications related to each single parameter (e.g. range, precision,
etc.), refer to the related measurement section.
PRECISION AND ACCURACY
Precision is how closely repeated measurements agree with each other.
Precision is usually expressed as standard deviation (SD).
Accuracy is defined as the nearness of a test result to the true value.
Although good precision suggests good accuracy, precise results can be
inaccurate. The figure explains these definitions.
For each parameter, the precision is expressed in the related measurement
section as standard deviation at a specific concentration value of the
analite. The standard deviation is obtained with a single instrument using
a representative lot of reagents.
76
Description Range Method
Ammonia LR 0.00 to 3.00 mg/LNessler
Ammonia HR 0 to 100 mg/LNessler
Chlorine, Free 0.00 to 5.00 mg/LDPD
Chlorine, Total 0.00 to 5.00 mg/LDPD
Nitrate 0.0 to 30.0 mg/LChromotropic Acid
Nitrogen, Total 0.0 to 25.0 mg/LChromotropic Acid
Nitrogen, Total HR 10 to 150 mg/LChromotropic Acid
COD LR 0 to 150 mg/LDichromate, Mercuric Sulphate
COD MR 0 to 1500 mg/LDichromate, Mercuric Sulphate
COD HR 0 to 15000 mg/LDichromate, Mercuric Sulphate
Phosphorus, Reactive 0.00 to 5.00 mg/LAscorbic Acid
Phosphorus, Acid Hydrolyzable 0.00 to 5.00 mg/LAscorbic Acid
Phosphorus, Total 0.00 to 3.50 mg/LAscorbic Acid
Phosphorus, Reactive HR 0.0 to 100.0 mg/LVanadomolybdophosphoric Acid
Phosphorus, Total HR 0.0 to 100.0 mg/LVanadomolybdophosphoric Acid
STANDARD METHODS
Besides the 12 VDC supply, this meter can also be fed by two 9V
batteries.
To prolong battery life, switch your meter off after use. However, the
meter has an auto-shut off feature that will turn itself off after 10
minutes of non-use.
A blinking "LOBAT" on the display, while a
measurement is in progress, indicates low
voltage and the batteries should be replaced.
If the batteries are not replaced immediately,
in order to prevent erroneous readings due to
low voltage, "-BA-" is displayed soon
afterwards. At this point the batteries must be
changed.
Battery replacement must only take place in a non-hazardous area
using two 9V alkaline batteries.
Remove the battery cover on the back of photometer, attach two fresh
9V batteries, while paying attention to the correct polarity, and replace
the cover.
The meter will turn on automatically when a
new battery is connected. You can turn it off
by pressing ON/OFF.
BATTERY REPLACEMENT

6
PRINCIPLE OF OPERATION
Absorption of Light is a typical phenomenon of interaction between
electromagnetic radiation and matter. When a light beam crosses a
substance, some of the radiation may be absorbed by atoms, molecules
or crystal lattices.
If pure absorption occurs, the fraction of light absorbed depends both
on the optical path length through the matter and on the physical-
chemical characteristics of substance according to the Lambert-Beer
Law:
-log
I
/I
o
ελc d
or
A ελc d
Where:
-log
I
/I
o
=Absorbance (A)
I
o
=intensity of incident light beam
I
=intensity of light beam after absorption
ελ=molar extinction coefficient at wavelength λ
c=molar concentration of the substance
d=optical path through the substance
Therefore, the concentration "c" can be calculated from the absorbance
of the substance as the other factors are known.
Photometric chemical analysis is based on the possibility to develop
an absorbing compound from a specific chemical reaction between
sample and reagents.
Given that the absorption of a compound strictly depends on the
wavelength of the incident light beam, a narrow spectral bandwidth
should be selected as well as a proper central wavelength to optimize
measurements.
The optical system of Hanna's C 99 & C 200 Series multiparameter
photometers is based on special subminiature tungsten lamps and
narrow-band interference filters to guarantee both high performance
and reliable results.
Four measuring channels (at four different wavelengths) allow a wide
range of tests.
C 200 Series block diagram (optical layout)
75
/PUP - Program Up
/PDN - Program Down
/PTM - Turn Test Mode On
/Brx - Set the baud rate
1 - 300 2 - 600
3 - 1200 4 - 2400
/KBL - Lock Keyboard
/KBU - Unlock Keyboard
?PR# - Send Current Program Number
?BRQ - Send current baud rate
1 - 150 2 - 300
3 - 600 4 - 1200
5 - 2400
?CNQ - Send Concentration (three bytes)
conc
decimal point
unit
m - ppm b - ppb
t - ppt u - pcu
h - pH
?ERR - send error / status information
0 - No error
1 - CAP
2 - HI
3 - ZERO
4 - LO
5 - IDLE
6 - ZERO DONE
7 - TIMED READ

7
A microprocessor controlled special tungsten lamp emits radiation
which is first optically conditioned and beamed to the sample contained
in the vial. The optical path is fixed by the diameter of the vial. Then
the light is spectrally filtered to a narrow spectral bandwidth, to obtain
a light beam of intensity
I
oor
I .
The photoelectric cell collects the radiation
I
that is not absorbed by
the sample and converts it into an electric current, producing a potential
in the mV range.
The microprocessor uses this potential to convert the incoming value
into the desired measuring unit and to display it on the LCD.
The measurement process is carried out in two phases: first the meter
is zeroed and then the actual measurement is performed.
The vial has a very important role because it is an optical element and
thus requires particular attention. It is important that both the
measurement and the calibration (zeroing) vials are optically identical
to provide the same measurement conditions. Most of parameters use
the same vial for both. In each case, insert the test vials always in the
same position into the holder.
It is necessary that the surface of the vial is clean and not scratched.
This is to avoid measurement interference due to unwanted reflection
and absorption of light. It is recommended not to touch the vial walls
with hands.
Furthermore, in order to maintain the same conditions during the
zeroing and the measuring phases, it is necessary to close the vial to
prevent any contamination.
74
Excel©Copyright of "Microsoft Co."
Lotus 1-2-3©Copyright of "Lotus Co."
TELIX®is registered Trademark of "Deltacomm"
Windows®and Windows Terminal®are registered Trademark of "Microsoft Co."
To connect your meter to the PC use the optional HI 920010 (available
from your Hanna Dealer). Make sure that your meter is switched off
and plug the connectors, one into the meter RS 232C socket, the other
into the serial port of your PC.
Note:Cables other than HI 920010 may use a different configuration,
in which case, communication between the meter and the PC
may not be possible.
SETTING THE BAUD RATE
The transmission speed (baud rate) of the meter and the external
device must be identical. The meter is factory set to 2400.
If you wish to change this value, please contact your nearest Hanna
Center.
SENDING COMMANDS FROM PC
With terminal programs such as, for example, Telix®, Windows Termi-
nal®, it is possible to remotely control your Hanna Instruments bench
meter. Use HI 920010 cable to connect the meter to the PC, start the
terminal program and set the communication options as follows: 8, N,
1, no flow control.
Command Types
To send a command to the meter the scheme is:
<DLE> <command> <CR>
This line makes the computer send a Data Link Escape character (/ or
?), the command expressed as a number or a 3-character sequence
and a CR character.
Note: Windows Terminal®and all the other terminal programs that
support the ANSI escape sequence, represent the DLE character
by the string ‘^P’ and the CR character by the string ‘^M’.
Type of Commands
/OFF - Turn the meter OFF
/PDR - Press Read Direct
/PTR - Press Timer
/PZR - Press Zero
INTERFACE WITH PC

8
FRONT PANEL
1) Vial Holder
2) Dual Level Liquid Crystal Display (LCD)
3) Programs List
4) READ DIRECT, to perform measurement immediately
5) TIMER, to perform measurement after a preprogrammed
countdown
6) ZERO, to zero the meter prior to measurement
7) Program tand s, to select the desired parameter
8) ON/OFF, to turn the meter on and off
REAR PANEL
1) Power Supply 12 VDC 2.5 Watt
2) RS 232 Socket
3) Batteries Compartment
FUNCTIONAL DESCRIPTION
73
•Wait for a few seconds and the
display will show “-0.0-”. Now the
meter is zeroed and ready for
measurement.
•Remove the blank vial.
•Place the sample vial into the holder
and push it completely down.
•Press READ DIRECT and "SIP" will blink on the display.
•The instrument directly displays concentration in mg/L of phosphate
(PO4
3-) on the Liquid Crystal Display.
The method detects free (orthophosphate), condensed inorganic
forms (meta-, pyro- and other polyphosphates) and organic forms
of phosphates present in the sample.
•To convert the reading to mg/L of P2O5, multiply by a factor of
0.748.
•To convert the reading to mg/L of phosphorus (P) concentration,
multiply by a factor of 0.326.
Note: for accurate measurements
1) wash glassware only with phosphate-free detergents
2) clean all glassware with 1 : 1 hydrochloric acid solution and rinse with
deionized water.
INTERFERENCES
Arsenate: positive error
pH: the sample should have a neutral pH
Temperature: the method is temperature sensitive.
It is recommended to add the Molybdovanadate Reagent
and to run measurements at T = 20 to 25 °C:
T < 20 °C causes a negative error
T > 25 °C causes a positive error
Turbidity: turbidity and suspended matter in large amounts may
cause interference because the strongly acidic reaction
conditions may dissolve suspended matter or cause
desorption of phosphates from particles. Before
measurement, turbidity or suspended matter should
be removed by treatment with active carbon and by
prior filtration.
Phosphorus, Total HR

9
GUIDE TO DISPLAY CODES
Note: The secondary LCD below shows a generic "P– –", whereas the
meter will indicate the exact program number (e.g. "P1" for
Ammonia LR).
Sampling in progress. This flashing prompt
appears each time the meter is performing
a measurement.
The microprocessor is adjusting the light
level, indicated by a scrolling "SIP".
This indicates that the meter is in a zeroed
state and measurement can be performed.
The blinking "LOBAT" indicates that the
battery voltage is getting low and the
batteries need to be replaced.
The instrument is performing an internal
check-up.
This indicates that the meter is in a ready
state and zeroing can be performed.
This indicates that the batteries are dead
and must be replaced.
Light over range. The vial is not inserted
correctly and an eccess ambient light is
reaching the detector. If the vial is properly
inserted, then contact your dealer or the
nearest Hanna Customer Service Center.
72
•At the end of the digestion place the
vials carefully in the test tube rack and
allow to cool to room temperature.
Warning: as the vials are still hot,
be careful in handling them.
•Select the program number corresponding to Total Phosphorus High
Range on the secondary LCD by pressing PROGRAM tand s.
•Remove the cap from the vials and add exactly 2.0 mL of Sodium
Hydroxide (NaOH) Solution 1,54 N to each vial, while keeping
the vials at a 45-degree angle. Replace the cap tightly and mix
by inverting the vials a couple of times.
•Remove the cap from the vials and add exactly 0.5 mL of HI
93763B-0 Molybdovanadate Reagent to each vial, while keeping
the vial at a 45-degree angle. Replace the cap tightly and mix by
inverting the vials a couple of times.
•Place the blank vial into the holder
and push it completely down.
•Press TIMER and the display will show the countdown prior to the
measurement. Alternatively, wait for 7 minutes and press ZERO. In
both cases "SIP" will blink during measurement.
Phosphorus, Total HR

10
The sample and zero vial are inverted.
This indicates that the meter has lost its
configuration. Contact your dealer or the
nearest Hanna Customer Service Center.
ERROR MESSAGES
a) on zero reading:
Theinstrumentcannot adjustthelightlevel.
Please check that the vial does not contain
any debris.
There is not enough light to perform a
measurement.Pleasecheck thepreparation
of the zero vial.
This indicates that the zeroing procedure
failed due to a low signal-to-noise ratio. In
this case press ZERO again.
There is too much light to perform a
measurement.Pleasecheck thepreparation
of the zero vial.
The lamp is not working properly. Contact
your dealer or the nearest Hanna Customer
Service Center.
The lamp is not working properly. Contact
your dealer or the nearest Hanna Customer
Service Center.
b) on sample reading:
There is too much light for the sample
measurement. Please check if the right
sample vial is inserted.
71
Reagent Blank Correction: This method needs a reagent blank
correction. A single blank vial may be used more than once; the blank
vial is stable up to one day (room temperature). For most accurate
measurement, run a blank for each set of measurements and always use
the same lot of reagents for blank and samples.
•Preheat the Hanna Reactor C 9800 to 150 °C (302°F). For correct
use of the reactor follow Reactor Instruction Manual.
Use of the optional HI 740217 safety shield is strongly recommended.
Do not use an oven or microwave because leaking samples can
generate a corrosive and possibly explosive atmosphere.
•Remove the cap from two Reagent Vials.
•Add exactly 5.0 mL of sample to one vial (sample vial), and 5.0
mL of deionized water to the other vial (blank vial), while keeping
the vials at a 45-degree angle.
•Add the content of one packet of Potassium Persulfate for Phosphorus
analysis to each vial. Replace the cap tightly and shake gently the
vials until all the powder is completely dissolved.
•Insert the vials into the reactor and
heat them for 30 minutes at 150°C.
Phosphorus, Total HR

11
A zero reading was not taken. Follow the
instruction described in the measurement
procedures for zeroing the meter.
Under range. A blinking "0.00" indicates
that the sample absorbs less light than the
zero reference. Check the procedure and
make sure that you use the same vial for
reference (zero) and measurement (unless
a reagent blank correction procedure is
prescribed).
1) A flashing value of the maximum
concentration indicates an over range
condition. The concentration of the sample
is beyond the programmed range: dilute
the sample and rerun the test.
2) A flashingvaluelowerthanthemaximum
concentration indicates a low signal-to-
noise ratio condition. In this case accuracy
of the result is not guaranteed. Repeat the
reading procedure.
70
PHOSPHORUS, TOTAL HIGH RANGE
SPECIFICATIONS
Range 0.0 to 100.0 mg/L (as PO4
3-)
Resolution 0.1 mg/L
Precision ±3.0 @ 75.0 mg/L
Typical EMC ±0.1 mg/L
Deviation
Light Source Tungsten lamp with narrow band interference filter
@ 420 nm
Method Adaptation of the Standard Methods for the
Examination of Water and Wastewater, 20th
edition,4500-P C, vanadomolybdophosphoric acid
method. A persulfate digestion converts organic
and condensed inorganic forms of phosphates to
orthophosphate. Then the reaction between
orthophosphate and the reagents causes a yellow
tint in the sample.
REQUIRED REAGENTS
Code Description Q.ty/test Q.ty/set
*Reagent Vial 1 vial 50 vials
--- Deionized Water 5 mL 1 bottle
--- Potassium Persulfate 1 packet 50 packets
--- NaOH Solution 1.54 N 2 mL 1 bottle
HI93763B-0 Molybdovanadate Reagent 0.5 mL 1 bottle
*Reagent Vial identification: P, white cap.
Note: Store the unused vials in their container in a cool and dark place.
REAGENT SET
HI 93763B-50 Reagents for up to 49 tests
For other accessories see page 77.
REQUIRED ACCESSORIES
C 9800-01 Hanna reactor (115 VAC)
C 9800-02 Hanna reactor (230 VAC)
HI 740216 test tube cooling rack (25 holes)
HI 740217 Laboratory bench safety shield
For other accessories see page 77.
MEASUREMENT PROCEDURE
Before starting to use the reagent kit it is recommended to read carefully
all the instructions and the Health & Safety Data Sheet
(HSDS). Pay particular attention to all warnings, cautions
and notes. Failure to do so may result in serious injury to
the operator.
Phosphorus, Total HR

12
The instructions listed below should be carefully followed during testing
to ensure most accurate results.
COLLECTING AND MEASURING SAMPLES
•For adding the exact amount of sample or liquid reagent to the
reagent vials it is strongly recommended to use the available
Hanna automatic fixed-volume pipettes or class A laboratory pipettes
(symbolized like a generic pipette tip in the following parameter
related chapters):
pipette code volume
HI 731340 200 µL
HI 731341 1000 µL
HI 731342 2000 µL
For correct use of the automatic pipette, please follow the related
Instruction Sheet.
Alternatively, it is possible to use the optional HI 740142 1 mL
graduated syringe or C115-00300 5 mL graduated syringe. For
the correct use of the syringes, see instructions below.
1. In order to measure exactly e.g. 5 mL of reagent with the 5 mL
syringe:
(a) push the plunger completely into the syringe and insert the
tip into the solution.
(b) pull the plunger up until the lower edge of the seal is exactly
on the 5 mL mark.
(c) take out the syringe and clean the outside of the syringe tip.
Be sure that no drops are hanging on the tip of the syringe, if
so eliminate them. Then, keeping the syringe in vertical
position above the vial, push the plunger completely down
into the syringe. Now the exact amount of 5 mL has been
added to the vial.
TIPS FOR AN ACCURATE MEASUREMENT
(
c
) ( a ) ( b )
69
•Place the sample vial into the holder
and push it completely down.
•Press READ DIRECT and "SIP" will blink on the display.
•The instrument directly displays concentration in mg/L of phosphate
(PO4
3-) on the Liquid Crystal Display.
•To convert the reading to mg/L of P2O5, multiply by a factor of
0.748.
•To convert the reading to mg/L of phosphorus (P) concentration,
multiply by a factor of 0.326.
Note: for accurate measurements
1) wash glassware only with phosphate-free detergents
2) clean all glassware with 1 : 1 hydrochloric acid solution and rinse with
deionized water.
INTERFERENCES
Interference may be caused by:
Bismuth: negative error
Fluoride: negative error
pH: the sample should have a neutral pH
Sulfide: negative error .
To eliminate sulfide: add Bromine Water drop-wise
until a pale yellow color develops; remove Bromine
Water excess by adding Phenol solution drop-wise.
Temperature: the method is temperature sensitive.
It is recommended to run measurements at T = 20 to 25 °C:
T < 20 °C causes a negative error
T > 25 °C causes a positive error
Turbidity: turbidity and suspended matter in large amounts may
cause interference because the strongly acidic reaction
conditions may dissolve suspended matter or cause
desorption of phosphates from particles. Before
measurement, turbidity or suspended matter should
be removed by treatment with active carbon and by
prior filtration.
Phosphorus, Reactive HR

13
2. In order to measure exactly e.g. 0.5 mL of reagent with the 1 mL
syringe:
(a) push the plunger completely into the syringe and insert the
tip into the solution.
(b) pull the plunger up until the lower edge of the seal is exactly
on the 0.0 mL mark.
(c) take out the syringe and clean the outside of the syringe tip.
Be sure that no drops are hanging on the tip of the syringe, if
so eliminate them. Then, keeping the syringe in vertical
position above the vial, push the plunger down into the
syringe until the lower edge of the seal is exactly on the 0.5
mL mark. Now the exact amount of 0.5 mL has been added
to the vial, even if the tip still contains some solution.
•Color or suspended matter in large amounts may cause interference,
therefore, these should be removed by treatment with active carbon
and by prior filtration.
USING LIQUID AND POWDER REAGENTS
•Proper use of the dropper:
(a) to get good reproducible results, tap the dropper on the table
for several times and wipe the outside of the dropper tip with
a cloth.
(b) always keep the dropper bottle in a vertical position while
dosing the reagent.
(
a
) ( b )
( c ) (
a
) (b )
68
•Select the program number corresponding to Reactive Phosphorus
High Range on the secondary LCD by pressing PROGRAM tand s.
•Remove the cap from two Reagent Vials.
•Add exactly 5.0 mL of sample to one vial (sample vial), and 5.0
mL of deionized water to the other vial (blank vial), while keeping
the vials at a 45-degree angle.
•Replace the cap and mix by inverting each vial a couple of times.
•Place the blank vial into the holder
and push it completely down.
•Press TIMER and the display will show the countdown prior to the
measurement. Alternatively, wait for 7 minutes and press ZERO. In
both cases "SIP" will blink during measurement.
•Wait for a few seconds and the
display will show “-0.0-”. Now the
meter is zeroed and ready for
measurement.
•Remove the blank vial.
Phosphorus, Reactive HR

14
•Proper use of the powder reagent packet:
(a) use scissors to open the powder packet;
(b) push the edges of the packet to form a spout;
(c) pour out the content of the packet.
USING VIALS
•Never insert hot vials in the instrument, or the cuvet holder may
become damaged.
•In order to avoid reagent leaking and to obtain most accurate
results, it is recommended to close the vial tightly with the supplied
cap after addition of reagents or sample.
•Shaking the vial can generate bubbles in the sample, causing
higher readings. To obtain accurate measurements, remove such
bubbles by swirling or by gently tapping the vial.
•Proper mixing is very important for reproducibility of the
measurements. The right way of mixing a vial is specified for each
parameter in the related chapter.
(a) invert the vial a couple of times or for a specified time: hold
the vial in the vertical position with the cap up. Turn the vial
upside-down and wait for all of the solution to flow to the cap
end, then return the vial to the upright vertical position and wait
for all of the solution to flow to the vial bottom. This is one
inversion. The right speed of this mixing technic takes 30 seconds
to complete 10 inversions.
This mixing technic is indicated like “invert
to mix”, with the icon:
(
c
) ( a ) ( b )
invert to mix
67
PHOSPHORUS, REACTIVE HIGH RANGE
SPECIFICATIONS
Range 0.0 to 100.0 mg/L (as PO4
3-)
Resolution 0.1 mg/L
Precision ±3.0 @ 75.0 mg/L
Typical EMC ±0.1 mg/L
Deviation
Light Source Tungsten lamp with narrow band interference filter
@ 420 nm
Method Adaptation of the Standard Methods for the
Examination of Water and Wastewater, 20th
edition,4500-P C, vanadomolybdophosphoric acid
method. The reaction between orthophosphate and
the reagents causes a yellow tint in the sample.
REQUIRED REAGENTS
Code Description Q.ty/test Q.ty/set
*Reagent Vial 1 vial 50 vials
--- Deionized Water 5 mL 1 bottle
*Reagent Vial identification: P, green cap.
Note: Store the unused vials in their container in a cool and dark place.
REAGENT SET
HI 93763A-50 Reagents for up to 49 tests
For other accessories see page 77.
MEASUREMENT PROCEDURE
Before starting to use the reagent kit it is recommended
to read carefully all the instructions and the Health &
Safety Data Sheet (HSDS). Pay particular attention to all
warnings, cautions and notes. Failure to do so may result
in serious injury to the operator.
Reagent Blank Correction: This method needs a reagent blank
correction. A single blank vial may be used more than once; the blank
vial is stable up to two weeks (room temperature). For most accurate
measurement, run a blank for each set of measurements and always use
the same lot of reagents for blank and samples.
Phosphorus, Reactive HR

15
(b) shake the vial: move the vial up and down. The movement
may be gentle or vigorous.
This mixing method is indicated like “shake gently” or “shake
vigorously”, with the icons:
•To obtain most reproducible readings, insert the test vial always in
the same way into the holder: place an orientation sign by marking
the vial with a pencil on the white band. As reference you can use
the alignment indicator on the top of the casing.
Pay attention to push the vial completely down in the holder.
•Whenever the vial is placed into the
measurement cell, it must be dry
outside, and completely free of
fingerprints, oil or dirt. Wipe it
thoroughly with HI 731318 or a
lint-free cloth prior to insertion.
shake gently shake vigorously
66
•Press TIMER and the display will show the countdown prior to the
measurement. Alternatively, wait for 3 minutes and press READ
DIRECT. In both cases "SIP" will blink during measurement.
•The instrument directly displays concentration in mg/L of phosphate
(PO4
3-) on the Liquid Crystal Display.
The method detects free (orthophosphate), condensed inorganic
forms (meta-, pyro- and other polyphosphates) and organic forms
of phosphates present in the sample.
•To convert the reading to mg/L of P2O5, multiply by a factor of
0.748.
•To convert the reading to mg/L of phosphorus (P) concentration,
multiply by a factor of 0.326.
Note: for accurate measurements
1) wash glassware only with phosphate-free detergents
2) clean all glassware with 1 : 1 hydrochloric acid solution and rinse with
deionized water.
INTERFERENCES
Interference may be caused by:
Arsenate: at any level
Silica: above 50 mg/L
Sulfide: above 90 mg/L.
Turbidity: turbidity and suspended matter in large amounts may
cause interference because the strongly acidic reaction
conditions may dissolve suspended matter or cause
desorption of phosphates from particles. Before
measurement, turbidity or suspended matter should be
removed by treatment with active carbon and by prior
filtration.
Phosphorus, Total

16
•Do not let the reacted sample stand too long after reagent is
added, or accuracy will be lost.
•It is possible to take multiple readings in a row, but it is
recommended to take a new zero reading for each sample and to
use the same vial for zeroing and measurement where possible
(for most precise results follow carefully the measurement
procedures).
•All the reaction times reported in this manual are referred to 20°C
(68°F). As a general rule of thumb, they should be doubled at
10°C (50°F) and halved at 30°C (86°F).
DIGESTION
•Some analytical methods do require digestion of the sample. Use
for digestion of the vials only the Hanna C9800 block heater.
Use of the optional HI 740217 safety shield is strongly
recommended. For correct use of the reactor follow the Reactor
Instruction Manual. At the end of the digestion period, the vials
are still hot: allow the vials to cool to room temperature in the
optional HI 740216 test tube cooling rack.
REAGENT BLANK CORRECTION
•The measurement procedure of some parameters requires a “reagent
blank correction”. The blank and the sample are prepared exactly
in the same way, with the only difference that for the blank
deionized water is used instead of sample.
A blank vial may be used more than once: stability and storing
conditions are described for each parameter in the related chapter.
INTERFERENCES
•In the parameter related measurement sections we have reported
the most common interferences that may be present in an average
wastewater matrix. It may be that for a particular treatment
process other compounds do interfere with the method of analysis.
65
•Replace the cap tightly and mix by
inverting the vial a couple of times.
This is the blank.
•Mark the vial with a pencil on the
white band to place an orientation
sign. Use this sign to insert the test
vial always in the same position into
the holder.
•Place the vial into the holder and
push it completely down.
•Press ZERO and “SIP” will blink on the display.
•Wait for a few seconds and the
display will show “-0.0-”. Now the
meter is zeroed and ready for
measurement.
•Remove the vial.
•Remove the cap and add the content
of one packet of HI 93758-0
Phosphorus Reagent.
•Replace the cap tightly and shake
gently to mix for about 2 minutes
until all the powder is completely
dissolved. This is the reacted sample.
•Place the vial into the holder and
push it completely down. Ensure that
the vial orientation respect to the
holder is the same as the blank.
Phosphorus, Total

17
PARAMETERS REFERENCE TABLES
C 214 - WATER TREATMENT APPLICATION
Program n° Parameter Parameter Page
code description
1HI 93764A Ammonia LR 22
2HI 93764B Ammonia HR 25
3HI 93701 Chlorine, Free 28
4HI 93711 Chlorine, Total 31
5HI 93766 Nitrate 34
6HI 93767A Nitrogen, Total LR 37
7HI 93767B Nitrogen, Total HR 43
8HI 93754A Oxygen Demand, 47
Chemical (COD) LR
9HI 93754B Oxygen Demand, 50
Chemical (COD) MR
10 HI 93754C Oxygen Demand, 53
Chemical (COD) HR
11 HI 93758A Phosphorus, Reactive 56
12 HI 93758B Phosphorus, Acid Hydrolyzable 59
13 HI 93758C Phosphorus, Total 63
14 HI 93763A Phosphorus, Reactive HR 67
15 HI 93763B Phosphorus, Total HR 70
VIALS IDENTIFICATION
Vials related to different parameters can be distinguished by mean of a
letter printed on the vial (beside the Hanna logo) and the cap color:
64
•Preheat the Hanna Reactor C 9800 to 150 °C (302°F). For correct
use of the reactor follow Reactor Instruction Manual.
Use of the optional HI 740217 safety shield is strongly recommended.
Do not use an oven or microwave because leaking samples can
generate a corrosive and possibly explosive atmosphere.
•Remove the cap from a Reagent
Vial.
•Add exactly 5.0 mL of sample to
the vial, while keeping the vial at
a 45-degree angle.
•Add the content of one packet of Potassium Persulfate for
Phosphorus analysis. Replace the cap and shake gently the vial
until all the powder is completely dissolved.
•Insert the vial into the reactor and
heat it for 30 minutes at 150°C.
•At the end of the digestion place the
vials carefully in the test tube rack and
allow to cool to room temperature.
Warning: as the vials are still hot, be
careful in handling them.
•Select the program number
corresponding to Total Phosphorus on
the secondary LCD by pressing
PROGRAM tand s.
•Remove the cap from the vial and
add exactly 2.0 mL of Sodium
Hydroxide (NaOH) Solution 1,54 N,
while keeping the vial at a 45-degree
angle.
Phosphorus, Total

18
Parameter Vial letter Vial cap color
HI 93764A Ammonia LR Awhite
HI 93764B Ammonia HR Agreen
HI 93701 Chlorine, Free (no letter) white
HI 93711 Chlorine, Total (no letter) white
HI 93766 Nitrate Nwhite
HI 93767A Nitrogen, Total LR Ngreen(digestionvial)
white (reagent vial)
HI 93767B Nitrogen, Total HR Nred (digestion vial)
white (reagent vial)
HI 93754A Oxygen Demand, (no letter) red
Chemical (COD) LR
HI 93754B Oxygen Demand, (no letter) white
Chemical (COD) MR
HI 93754C Oxygen Demand, (no letter) green
Chemical (COD) HR
HI 93758A Phosphorus, Reactive Pred
HI 93758B Phosphorus, Pwhite
Acid Hydrolyzable
HI 93758C Phosphorus, Total Pwhite
HI 93763A Phosphorus, Reactive HR Pgreen
HI 93763B Phosphorus, Total HR Pwhite
•The letter refers to:
A: ammonia
N: nitrate; total nitrogen
P: phosphorus
(no letter) : chemical oxygen demand (COD) and generic empty
vials.
•The cap color allows distinguishing different vials that are used to
measure the same analyte (indicated by the letter code), but for a
different range, or between different vials used in a single
measurement procedure.
Note that different parameters use sometimes the same vials (thus with
the same letter andand
andand
and same cap color).
63
PHOSPHORUS, TOTAL
SPECIFICATIONS
Range 0.00 to 3.50 mg/L (as PO4
3-)
Resolution 0.01 mg/L
Precision ±0.06 @ 2.50 mg/L
Typical EMC ±0.01 mg/L
Deviation
Light Source Tungsten lamp with narrow band interference filter
@ 610 nm
Method Adaptation of the EPA method 365.2 and Standard
Methods for the Examination of Water and
Wastewater, 20th edition,4500-P E, ascorbic acid
method. A persulfate digestion converts organic
and condensed inorganic forms of phosphates to
orthophosphate. Then the reaction between
orthophosphate and the reagents causes a blue
tint in the sample.
REQUIRED REAGENTS
Code Description Q.ty/test Q.ty/set
*Reagent Vial 1 vial 50 vials
--- Potassium Persulfate 1 packet 50 packets
--- NaOH Solution 1.54 N 2 mL 1 bottle
HI93758-0 Phosphorus Reagent 1 packet 50 packets
*Reagent Vial identification: P, white cap.
Note: Store the unused vials in their container in a cool and dark place.
REAGENT SET
HI 93758C-50 Reagents for 50 tests
For other accessories see page 77.
REQUIRED ACCESSORIES
C 9800-01 Hanna reactor (115 VAC)
C 9800-02 Hanna reactor (230 VAC)
HI 740216 test tube cooling rack (25 holes)
HI 740217 Laboratory bench safety shield
For other accessories see page 77.
MEASUREMENT PROCEDURE
Before starting to use the reagent kit it is recommended to read carefully
all the instructions and the Health & Safety Data Sheet
(HSDS). Pay particular attention to all warnings, cautions
and notes. Failure to do so may result in serious injury to
the operator.
Phosphorus, Total

19
HEALTH & SAFETY
The chemicals contained in the reagent kits may be
hazardous if improperly handled. Read the Health & Safety
Data Sheet before performing tests.
Safety equipment: Wear suitable eye protection and clothing when
required, and follow instructions carefully.
Reagent spills: If reagent spillage 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.
Reagent vial disposal: Reagents vials may contain different waste
pollutants. After use dispose of the reagent vials according to the local
regulations.
62
•The instrument directly displays concentration in mg/L of
phosphate (PO4
3-) on the Liquid Crystal Display.
The method detects free (orthophosphate) and condensed inorganic
forms (meta-, pyro- and other polyphosphates) of phosphates
present in the sample.
•To convert the reading to mg/L of P2O5, multiply by a factor of
0.748.
•To convert the reading to mg/L of phosphorus (P) concentration,
multiply by a factor of 0.326.
Note: for accurate measurements
1) wash glassware only with phosphate-free detergents
2) clean all glassware with 1 : 1 hydrochloric acid solution and rinse with
deionized water.
INTERFERENCES
Interference may be caused by:
Arsenate: at any level
Silica: above 50 mg/L
Sulfide: above 9 mg/L.
To eliminate sulfide: add Bromine Water drop-wise until a
pale yellow color develops; remove Bromine Water excess
by adding Phenol solution drop-wise.
Turbidity: turbidity and suspended matter in large amounts may
cause interference because the strongly acidic reaction
conditions may dissolve suspended matter or cause
desorption of phosphates from particles. Before
measurement, turbidity or suspended matter should be
removed by treatment with active carbon and by prior
filtration.
Phosphorus, Acid Hydrolyzable

20
POWER CONNECTION
Plug the 12VDC adapter (HI 710005 - 110VDC, or HI 710006 -
220VDC) into the DC socket. Plug the adapter into the outlet.
Alternatively, remove the battery cover on the back of the meter;
attach 2 fresh 9V batteries and replace the cover.
Note:Insure the main line is surge protected.
Note:Always turn the meter off before unplugging it to insure no data
is lost.
MEASUREMENT PROCEDURE
•Turn the meter on by pressing ON/OFF.
•The meter will first perform an LCD auto
diagnostic test by displaying a full set of
figures.
•Then it will show a scrolling
"c 214 Hanna Inst" message.
•When the LCD displays “----”, the meter
is ready. On the secondary LCD "P1" will
appear to inform that the first parameter
measurement procedure (Ammonia LR)
can be performed.
•Press the PROGRAM tand PROGRAM skeys to select the
desired parameter.
For the program number, see the parameters reference table on
page 17 or look at the list printed on the mask of the meter.
OPERATIONAL GUIDE
61
•Mark the vial with a pencil on the
white band to place an orientation
sign. Use this sign to insert the test
vial always in the same position into
the holder.
•Place the vial into the holder and
push it completely down.
•Press ZERO and “SIP” will blink on the display.
•Wait for a few seconds and the
display will show “-0.0-”. Now the
meter is zeroed and ready for
measurement.
•Remove the vial.
•Remove the cap and add the content
of one packet of HI 93758-0
Phosphorus Reagent.
•Replace the cap tightly and shake
gently to mix for 2 minutes until
most of the powder is dissolved. This
is the reacted sample.
•Place the vial into the holder and
push it completely down. Ensure that
the vial orientation respect to the
holder is the same of the blank.
•Press TIMER and the display will show the countdown prior to the
measurement. Alternatively, wait for 3 minutes and press READ
DIRECT. In both cases "SIP" will blink during measurement.
Phosphorus, Acid Hydrolyzable