Hanna Instruments HI 83225 Manual de usuario

Instruction Manual

HI 83225

Grow Master

for Nutrient Analyses

This Instrument is in

Compliance with the CE Directiveswww.hannainst.com

MAN83225R1 04/05

www.hannainst.com

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.

PRELIMINARY EXAMINATION ....... 3

GENERAL DESCRIPTION ............... 3

SPECIFICATIONS ......................... 4

PRINCIPLE OF OPERATION .......... 4

FUNCTIONAL DESCRIPTION.......... 6

GUIDE TO DISPLAY CODES .......... 7

TIPS FOR AN ACCURATE

MEASUREMENT ........................ 10

PARAMETERS REFERENCE TABLE 11

OPERATIONAL GUIDE ................ 12

ABBREVIATIONS ....................... 13

INTRODUCTION ........................ 14

SAMPLE PREPARATION .............. 19

AMMONIA LR ........................... 23

AMMONIA MR .......................... 25

AMMONIA HR ........................... 27

CALCIUM .................................. 29

MAGNESIUM ............................ 31

NITRATE LR .............................. 33

NITRATE MR ............................. 35

NITRATE HR ............................. 37

PHOSPHORUS LR ..................... 39

PHOSPHORUS MR .................... 41

PHOSPHORUS HR ..................... 43

POTASSIUM LR ......................... 45

POTASSIUM MR........................ 47

POTASSIUM HR ........................ 49

POTASSIUM UHR ...................... 50

SULFATE .................................. 51

INTERFACE WITH PC ................. 53

STANDARD METHODS ............... 55

BATTERY REPLACEMENT ............ 55

ACCESSORIES ........................... 56

WARRANTY ............................... 57

CE DECLARATION

OF CONFORMITY....................... 58

HANNA LITERATURE .................. 59

Allrightsarereserved.Reproductioninwholeorinpartisprohibitedwithoutthewrittenconsentof

the copyright owner, Hanna Instruments Inc., Woonsocket, Rhode Island, 02895 , USA.

TABLE OF CONTENTS

259

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

• Thermometry

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.

HANNA LITERATURE

Remove the instrument from the packing material and examine it

carefully to make sure that no damage has occurred during shipment.

If there is any damage, notify your Dealer.

Each HI 83225 Meter is supplied complete with:

• Four Sample Cuvets and Caps

• One Transport Cap

• Two 9 V Battery

• 12 VDC Transformer (HI 710005 or HI 710006)

Note: Save all packing material until you are sure that the instrument

functions correctly. Any defective item must be returned in its

original packing with the supplied accessories.

HI 83000 Series is a line of 18 different bench, microprocessor-based

photometers that measure more than 50 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:

HI 83099 Laboratories, with COD HI 83200 Laboratories

HI 83203 Aquaculture HI 83205 Boilers & Cooling Towers

HI 83206 Environmental Testing HI 83207 Industrial Wastewater

HI 83208 Water Conditioning HI 83209 Education

HI 83210 Pulp & Paper Mills HI 83211 Chemical Manufacturers

HI 83212 Power Plant Utilities HI 83213 Municipal Wastewater

HI 83214 Wastewater Treatment Applic. HI 83215 Nutrient Analyses

HI 83216 Pool & Spa Applic. HI 83218 Environmental Applic.

HI 83225 Nutrient Analyses HI 83226 Pool & Spa Applic.

All meters use an exclusive positive-locking system to ensure that the

cuvet is in the same position every time it is placed into the

measurement cell.

The reagents are in liquid or powder form and are supplied in bottles

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, turning the unit off after 10

minutes of non-use.

The HI 83000 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.

PRELIMINARY EXAMINATION

GENERAL DESCRIPTION

Recommendations for Users

Before using these products, make sure that they are entirely suitable for the environment in which

they are used.

Operation of these instruments in residential area could cause unacceptable interferences to radio

and TV equipments, 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 perform any measurement in microwave ovens.

CE DECLARATION OF CONFORMITY

Light Source Tungsten lamp with narrow band interference

filter

Light Detector Silicon Photocell

Environment 0 to 50°C (32 to 122°F);

max 95% RH non-condensing

Power Supply 2x 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, accu-

racy, etc.), refer to the related measurement section.

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, mol-

ecules 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 physico-

chemical characteristics of substance according to the Lambert-Beer

Law:

-log I/Io= ελc d

A = ελc d

Where:

-log I/Io= Absorbance (A)

Io= 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.

SPECIFICATIONS

PRINCIPLE OF OPERATION

All Hanna Instruments meters are warranted for two years against

defects in workmanship and materials when used for their intended

purpose and maintained according to instructions.

This warranty is limited to repair or replacement free of charge.

Damages due to accidents, misuse, tampering or lack of prescribed

maintenance are not covered.

If service is required, contact the dealer from whom you purchased the

instrument. 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 com-

plete 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, construc-

tion and appearance of its products without advance notice.

WARRANTY

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 HI 83000 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.

HI 83000 Block diagram (optical layout)

A microprocessor controlled special tungsten lamp emits radiation

which is first optically conditioned and beamed to the sample con-

tained in the cuvet. The optical path is fixed by the diameter of the

cuvet. Then the light is spectrally filtered to a narrow spectral band-

width, to obtain a light beam of intensity Ioor I.

The photoelectric cell collects the radiation Ithat is not absorbed by

the sample and converts it into an electric current, producing a poten-

tial 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 cuvet 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) cuvets are optically identi-

cal to provide the same measurement conditions. Whenever possible

use the same cuvet for both.

It is also necessary that the surface of the cuvet 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

cuvet walls with hands.

Furthermore, in order to maintain the same conditions during the

zeroing and the measuring phases, it is necessary to close the cuvet to

prevent any contamination.

REAGENT SETS

HI 93706-01 100 Phosphorus tests

HI 93706-03 300 Phosphorus tests

HI 93715-01 100 Ammonia tests

HI 93715-03 300 Ammonia tests

HI 93728-01 100 Nitrate tests

HI 93728-03 300 Nitrate tests

HI 93750-01 100 Potassium tests

HI 93750-03 300 Potassium tests

HI 93751-01 100 Sulfate tests

HI 93751-03 300 Sulfate tests

HI 937520-01 50 Magnesium tests

HI 937520-03 150 Magnesium tests

HI 937521-01 50 Calcium tests

HI 937521-03 150 Calcium tests

OTHER ACCESSORIES

HI 721310 9V battery (10 pcs)

HI 731318 Tissue for wiping cuvets (4 pcs)

HI 731321 Glass cuvets (4 pcs)

HI 731325N New cap for cuvet (4 pcs)

HI 740034 Cap for 100 mL beaker (6 pcs)

HI 740036 100 mL plastic beaker (6 pcs)

HI 740157 Plastic refilling pipette (20 pcs)

HI 92000 Windows®Compatible Software

HI 920010 PC connection cable

HI 93703-50 Cuvets cleaning solution (230 mL)

HI 740223 170 mL plastic beaker

HI 740224 170 mL plastic beakers (12 pcs)

HI 740225 60 mL graduated syringe

HI 740226 5 mL graduated syringe

HI 740227 Filter assembly

HI 740228 Filter discs (25 pcs)

HI 740229 100 mL Polypropylene cylinder

HI 740230 230 mL Demineralized water

HI 93703-54 Dried resin (100 g)

HI 93703-55 Activated Carbon (50 pcs)

ACCESSORIES

FRONT PANEL

1) Cuvet Holder

2) Dual Level Liquid Crystal Display

3) Programs List

4) READ DIRECT, to perform measurement immediately

5) TIMER, to perform measurements after a preprogrammed

countdown

6) ZERO, to zero the meter prior to measurement

7) Program Wand V, to select the desired parameter

8) ON/OFF, to turn the meter on and off

REAR PANEL

1) Power Socket 12V to 20V DC 2.5 Watt

2) RS 232 Socket

3) Batteries Compartment

FUNCTIONAL DESCRIPTION

Description Program Range Method

Ammonia, LR 1 0.0 to 10.0 mg/L Nessler

Ammonia, MR 2 0.0 to 50.0 mg/L Nessler

Ammonia, HR 3 0 to 100 mg/L Nessler

Nitrate, LR 4 0.0 to 30.0 mg/L Cadmium Reduction

Nitrate, MR 5 0 to 150 mg/L Cadmium Reduction

Nitrate, HR 6 0 to 300 mg/L Cadmium Reduction

Phosphorus, LR 7 0.0 to 10.0 mg/L Aminoacid

Phosphorus, MR 8 0.0 to 50.0 mg/L Aminoacid

Phosphorus, HR 9 0 to 100 mg/L Aminoacid

Potassium, LR 10 0.0 to 20.0 mg/L Turbidimetric

Potassium, MR 11 10 to 100 mg / L Turbidimetric

Potassium, HR 12 20 to 200 mg / L Turbidimetric

Calcium, 13 0 to 400 mg/L Oxalate

Magnesium, HR 14 0 to 150 mg/L Calmagite

Sulfate 15 0 to 150 mg/L Turbidimetric

Besides to 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 immedi-

ately, 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.

STANDARD METHODS

BATTERY REPLACEMENT

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 perform-

ing 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 bat-

teries 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.

GUIDE TO DISPLAY CODES

/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 (1 to 12)

?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

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."

This indicates that the meter has lost its

configuration. Contact your dealer or the

nearest Hanna Customer Service Center.

ERROR MESSAGESERROR MESSAGES

ERROR MESSAGES

a) on zero reading:a) on zero reading:

a) on zero reading:

The instrument cannot adjust the light

level. Please check that the sample does

not contain any debris.

There is not enough light to perform a

measurement. Please check the prepara-

tion of the zero cuvet.

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 mea-

surement. Please check the preparation of

the zero cuvet.

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.

Light over range. The cuvet is not inserted

correctly and an eccess ambient light is

reachingthedetector.If thecuvet isproperly

inserted, then contact your dealer or the

nearest Hanna Customer Service Center.

To connect your meter to the PC use the optional HI 920010 (avail-

able 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 configura-

tion, 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 pH meter the scheme is:

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.

INTERFACE WITH PC

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

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 cuvet for

reference (zero) and measurement.

1) A flashing value of the maximum con-

centration indicates an over range condi-

tion. The concentration of the sample is

beyond the programmed range: dilute the

sample and rerun the test.

2) A flashing value lower than the maxi-

mum concentration indicates a low signal-

to-noise ratio condition. In this case accu-

racy of the result is not guaranteed. Repeat

the reading procedure.

The sample and zero cuvet are inverted.

b) on sample reading:b) on sample reading:

b) on sample reading:

There is too much light for the sample

measurement. Please check if the right

sample cuvet is inserted.

• Wait for a few seconds and the

display will show "-0.0-". Now the

meter is zeroed and ready for

measurement.

• Remove the cuvet.

• Add the content of one packet of

93751 reagent

• Replace the cap and shake gently

for 1 minute.

• Reinsert the cuvet into the

instrument.

• Press TIMER and the display will show the countdown prior to the

measurement or, alternatively, wait for 5 minutes and press READ

DIRECT. In both cases “SIP” will blink during measurement.

• The instrument directly displays concentration in mg/L of Sulfate

(SO4

2-) on the Liquid Crystal Display.

INTERFERENCES

Color or suspended matter in large amounts will interfere: suspended

matter should be removed by previous filtration.

Organic matter in large amounts may impede the precipitation of

barium sulfate.

Calcium (as CaCO3) >20000 mg/L

Chloride (as Cl-) >40000 mg/L

Magnesium (as MgCO3) >10000 mg/L

Silica (as SiO2) >500 mg/L

Sulfate 52

1’

The instructions listed below should be carefully followed during testing

to ensure best accuracy.

• Color or suspended matter in large amounts may cause interference,

therefore, these should be removed by treatment with active carbon

and by prior filtration.

• For a correct filling of the cuvet: the liquid

in the cuvet forms a convexity on the top;

the bottom of this convexity must be at

the same level of the 10 mL mark.

• Proper use of the dropper: to get good re-

producible results, tap the dropper on the

table for several times and wipe the outside

of the dropper tip with a cloth. Always keep

the dropper bottle in a vertical position while

dosing the reagent.

• 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;

10 mL

TIPS FOR AN ACCURATE MEASUREMENT

• It is important that the sample does not contain any debris. This

would corrupt the readings.

• Do not let the reacted sample stand too long after reagent is

added, or accuracy will be lost.

• In order to avoid reagent leaking and to obtain more

accurate measurements, it is recommended to close

the cuvet first with the supplied HDPE

plastic stopper and then with the black cap.

• Each time the cuvet is used, the cap must be tightened

to the same degree.

(a) (b) (c)

SPECIFICATIONS

Range 0 to 150 mg/L

Resolution 5 mg/L

Accuracy ±5 mg/L ±3% of reading

Light Source Tungsten lamp with narrow band interference filter

@ 466 nm

Method Sulfate is precipitated with barium chloride crystals.

Light absorbance of the suspension is measured.

REQUIRED REAGENTS

Code Description Quantity

HI 93751-0 Indicator reagent 1 packet

REAGENT SETS

HI 93751-01 Reagents for 100 tests

HI 93751-03 Reagents for 300 tests

For other accessories see page 56.

MEASUREMENT PROCEDURE

Note: for sample preparation follow the IRRIGATION WATER (LR)

procedure at page 19.

• Select the program number 15 “Sulfate” on the secondary LCD by

pressing PROGRAM Mand L.

• Fill a cuvet with 10 mL of unreacted

sample (up to the mark) and replace

the cap.

• Place the cuvet into the holder and

ensure that the notch on the cap is

positioned securely into the groove.

• Press ZERO and "SIP" will appear on

the display.

SULFATE

Sulfate

10 mL

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