Hanna Instruments HI 9032 User Manual

Instruction Manual

HI 9032

Microprocessor Bench

Conductivity/TDS/NaCl

Fertilizer/°C/°F Meter

with RS 232

These Instruments are in Compliance with the CE Directives

http://www.hannainst.com

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Dear Customer, Thank you for choosing a Hanna Instruments

Product. Please read this instruction manual carefully

before using the instrument. This manual will provide you with all the neces-

sary information for the correct use of the instrument, as well as a precise idea of its versatility in a wide range of applications.

This instrument is in compliance with CSA, UL and (EN 50081-1 and EN 50082-1) direc-

tives.

TABLE OF CONTENTS

Preliminary Examination ............................. 3

General Description..................................... 3

The Front Panel .......................................... 5

Liquid Crystal Displays................................ 7

The Rear Panel ........................................... 8

Specifications ........................................... 10

Operational Guide ......................................11

Conductivity Calibration ............................. 21

NaCl Calibration ........................................ 31

Fertilizer Calibration .................................. 35

Setting T emperature .................................. 40

Setting T emperature Coefficient................. 42

Setting TDS Factor ................................... 45

Programs .................................................. 47

Interface with PC ....................................... 54

Probe Maintenance ................................... 59

Accessories.............................................. 60

Warranty ................................................... 62

CE Declaration of Conformity .................... 63

ISO 9000 Certified Company since 1992

PRELIMINARY EXAMINATION

Remove the instrument from the packing material and examine it to make sure that no damage has occurred during shipping. If there is any damage, notify your Dealer.

Each HI 9032 bench meter is supplied complete with:

• HI 7669/2W Temperature Probe

• HI 7686 Conductivity Probe

• External Power Supply (HI710005 or HI710006)

• HI 76405 Electrode Holder

• Dust Cover

Note: Save all packing material until you are

sure that the instrument functions correctly. All defective items must be returned in the original package together with the supplied accessories.

GENERAL DESCRIPTION

Hanna Instruments HI9032 is a microprocessor-based, bench-top, conductivity meter designed for the laboratory stringent demands, with the ability to perform five types of measurements:

• Conductivity (4 different ranges: 0.0 to

399.9 µS/cm, 399 to 3999 µS/cm, 3.99 to

39.99 mS/cm, 39.9 to 99.9 mS/cm)

• Fertilizer Concentration (F1 or F2 in the range 0.00 to 39.9 g/l)

• NaCl of sea water saturation (range 0.0 to 130.0%)

• Temperature (range 0.0 to 50.0°C)

• Total Dissolved Solids (3 different ranges:

0.0 to 199.9 ppm, 0 to 1999 ppm, 0.00 to

19.99 g/l).

HI9032 automatically recognizes buffers @84µS/cm, 1413µS/cm, 12.88 mS/cm, 80.0 mS/cm.

Commands are easily accessible through the user-friendly keyboard:

Through the COND key the meter is set in the conductivity range, TDS key selects Total Dissolved Solids measurements, NaCl key sets the range to NaCl measurement, and the FERT key selects 1st or 2nd fertilizer measurements.

Temperature compensation can be either automatic or manual. It can be selected through the key ATC / MTC respectively.

A temperature coefficient factor (for conductivity measurements) can be also selected through the %TC key (from 0.0 to 3.0%).

The TDS factor (for TDS measurements) can be selected through the FTR key (from 0.01 to 0.99).

The unit includes memory storages for all calibration data even after the unit is shut off.

HI 9032 is equipped with two liquid crystal displays:

• A large one in two sections (primary and secondary LCD) indicates conductivity, TDS, NaCl, Fertilizer and temperature coefficient %;

• A smaller one indicates temperature.

The meter also incorporates a standard R232C output to allow serial communication with a host computer; a series of programs can be selected for the setting of the R232C baud rate.

THE FRONT PANEL

CALIBRATION

ins

HI9032 microcomputer conductivity meter

LO BAT SAMPLE

HOLD

CONDUCTIVITY

FERTILIZER NaCl

CON CAL

TEMP.

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TDS

BUF

HI LO

Select

Cond. Fert. NaCl T.D.S.

Depress

CAL

Depress

3 0

Depress

ENTER

(refer to instruction manual for details) When on L.C.D. is blinking, place electrode in reference buffer

BUF

When displayed on L.C.D. & ~ on L.C.D. is blinking, equipment confirm that

BUF

bufferis within ±15% of theoritical set value, but reading is still not stable yet

When

ppm

°C

%TC

BUF

accepting the calibration Equipment return to OPERATION mode for measurement

Display

Main Sub.

Display

Temp. Display

Cond.

T.D.S.

FTR

ATC MTC

to enter calibration parameter

....

repeat

& when necessary

& " CON" displayed on L.C.D., depress

: The Result of measurement : Conditions of the measurement : Temperature reading

(Keyboard entry is shown by the blinking of Decimal point)

NaCl

Fert.

°C

3°F2

PGM

%TC

Clear

key to confirm for

CON

ENTER

1. Large display for Conductivity, Fertil-

izer, NaCl and TDS

This large LCD displays the conductivity, fertilizer, NaCl and TDS reading. The corresponding symbol will be displayed along with the measured value.

A "----" signal will appear on this display to indicate an out of range condition.

2. Temperature display This LCD displays the temperature mea-

sured by the HI7669/2W probe or the value that was manually set through the keyboard. Temperature can be selected between the Celsius and the Fahrenheit scale by pressing the °C or the °F key respectively.

If the probe is not connected when the meter is turned on, the "25°C" (or "77°F") symbol with a blinking decimal point will default.

OFF

CAL

CON

If the temperature probe is disconnected during operation, the decimal point will start blinking.

It will blink also if the temperature range is exceeded.

This LCD also displays the program # during programming.

3. Calibration Procedure Briefly describes calibration

procedure

4. Keyboard

• Cond key, to select conductivity mea- surement mode

• Fert. key, to select fertilizer measure- ment mode and to select Fertilizer #1 or #2 ("F1" or "F2")

• NaCl key, to select NaCl measure- ment mode

• T.D.S. key, to select total dissolved solids measurement mode

• FTR key, to select the TDS factor for TDS measurements (see page 45)

•°C key, to display temperature in the Celsius scale

•°F key, to display temperature in the Fahrenheit scale

• ON key, to switch the instrument on

• OFF key, to switch the instrument off

• CAL key, to enter or exit the calibra-

tion mode

• CON key, to confirm calibration data

• ENTER Key, to confirm/enter the nu-

meric data entry

• 0 to 9 keys, numeric and decimal keys for numeric data input

• Clear Key, to clear the numeric data entry

LIQUID CRYSTAL DISPLAYS

Large display for Conductivity, Fertilizer, NaCl and TDS

Primary Display

LO BAT SAMPLE

HOLD

CONDUCTIVITY

FERTILIZER NaCl

CON CAL

Secondary Display

BUF

TDS

F1 F2

ppm

°C

%TC

• ATM/MTC key, to select automatic or manual temperature compensation

• %T.C. key, to select the temperature coefficient for conductivity measurements or to select a different conductivity buffer during calibration (see page 21)

• PGM key, used in programming

HI LO

TEMP. display for temperature in °C or °F and program #

THE REAR PANEL

1. DIN female socket for the conductivity probe (HI7686)

2. Temperature probe socket for use with the

HI7669/2W

3. Reset button

4. Potentiometer for conductivity calibration (0.0µS)

5. RS 232C socket for serial communication.

6. DC Power Socket (for HI710005 or

HI710006).

Probes connection

Connect the supplied conductivity probe HI7686 securely to the DIN socket provided (#1) by aligning the pins with the socket, pushing the plug in and tightening the threaded ring.

For temperature measurements and auto- matic temperature compensation connect the temperature probe HI7669/2W to the °C socket (#2).

RESET button and restart the entire operation.

Power connection

Plug the 12VDC adapter (HI710005 or HI710006) into the DC socket (#6).

Plug the adapter into the mains. Note: The instrument uses the following con-

figuration.

It is recommendable to use Hanna HI710005 or HI710006 voltage adapters (supplied with the meters) that use the proper polarity configuration.

HI9032 can also be used with other adapters. In this case, remember to check the correct polarity of your adapter before connecting it to the meter.

Note:

• Make sure the main line is protected by a fuse.

• If you need to unplug the instrument, press the OFF key before disconnecting the meter from the mains.

RESET button

The RESET button (#3) is used when the instrument displays erroneous messages due to strong electrical interference or when the instrument's power supply was disconnected before the meter was switched off. Press the

MEASURE

COND.

FERTILIZER NaCl TDS

TEMP.

RESOLUTION

COND. FERTILIZER

NaCl TDS TEMP.

ACCURACY (@20°C/68°F)

TEMP.

SPECIFICATIONS

0.0-399.9 / 399-3999 µS/cm

3.99-39.99 / 39.9-99.9 mS/cm

0.00 to 39.99 g/l

0.0 to 130.0%

0.0-199.9 / 0-1999 ppm;

0.00 to 19.99 g/l

0.0 to 50.0°C / 32.0 to 122.0°F

0.1 µS/cm; 1 µS/cm;

0.01 mS/cm; 0.1 mS/cm

0.01 g/l

0.1 pmm; 1 ppm; 0.01 g/l

0.1°C / 0.1°F

±1% full scale each range

±0.5°C / ±1°F

excluding probe error

0.1%

OPERATIONAL GUIDE

Make sure that the instrument has been calibrated before taking measurements (see calibration procedures on page 21 for conductivity, page 31 for NaCl and 35 for fertilizer).

Connect the conductivity probe to the meter securely by aligning the pins with the socket on the back of the meter, pushing the plug in and tightening the threaded ring.

Connect the temperature probe to the back of the meter for automatic temperature compensation or for temperature measurements.

If possible, to minimize any EMC interferences, use plastic beakers for the solutions.

TYPICAL EMC DEVIATION

CALIBRATION

TEMPERATURE COMPENSATION

TDS FACTOR

ENVIRONMENT

DIMENSIONS

SHIPPING WEIGHT

±1% full scale all 4 ranges

±0.1°C / ±0.2°F

Automatic single point at 84µS,

1413 µS, 12.88 mS and 80.0

Automatic or manual from

0 to 50°C (32 to 122°F) with

an adjustable ß from 0.0 to

3.0% per degree °C.

Adjustable from 0.01 to 0.99

0 to 50°C (32 to 122°F);

max. RH 95%

230 x 170 x 70mm

(9.1 x 6.7 x 2.7")

1.5 kg (3.3 lbs)

TAKING CONDUCTIVITY, FERTILIZER, NaCl, TDS MEASUREMENTS

With Automatic Temperature Compensation

• Immerse the conductivity probe into the solution submerging the holes of the sleeve in the sample.

Agitate the probe lightly in the solution to remove any air bubbles which may have been trapped inside the sleeve.

Immerse the temperature probe as close as possible to the conductivity probe.

1110

%TC

• Switch the instrument on by pressing the ON key.

The meter automatically defaults to the conductivity mea-

CONDUCTIVITY

surement mode with

2.0% as temperature coefficient (on the

%TC

large LCD) and the temperature in the Celsius scale (on the TEMP. LCD).

• Select a different measurement mode by pressing the following keys:

Fert.

• the Fert. key for fertilizer

• the Fert. key twice for fer-

tilizer #2

Fert.

Conductivity measurement mode

• By pressing the Cond. key, the display will show "CONDUCTIVITY" to confirm the measurement mode.

Cond.

CONDUCTIVITY

%TC

• The meter will automatically default the temperature coefficient % value to 2.0% (shown on the secondary display) every time it is turned on.

• Change the temperature coefficient to the value of the solution, by pressing the %TC key. The % value will start blinking on the secondary LCD.

CONDUCTIVITY

%TC

• the NaCl key for NaCl of sea water saturation.

• the T.D.S. key for total dissolved solids

• the Cond. key to enter the conductivity measurement mode again.

NaCl

T.D.S.

Cond.

Enter the desired value by pressing the numeric keys and then press the ENTER key to confirm the value.

The stored value will be displayed and it will stop blinking.

E.g. If you want to enter 2.5% as temperature coefficient value, proceed as follows: Press the %TC key Press 2 Press . Press 5

1312

Press the ENTER key.

%TC

°F

CONDUCTIVITY

%TC

• If further measurements are desired, rinse the probe with a small amounts of the next sample and then proceed.

ENTER

Fertilizer measurement mode

• By pressing the Fert. key the display will show "FERTILIZER" to confirm the mea-

surement mode and the secondary display will show "1", i.e. Fertilizer #1.

%TC

PGM

To clear the numeric entry,

Clear

press the CLEAR key.

See page 44 for the procedure to calculate the correct coefficient value.

If you need to take conductivity measurements without ATC, press the ATC/MTC key.

• HI9032 is an auto-ranging conductivity meter and the reading automatically switches from one resolution to the next (from pure water @ 0.1µS/cm up to

99.9 mS/cm).

• When using HI7686 together with HI7669/ 2W all readings are automatically compen-

sated for any temperature difference. Wait for a few minutes for the temperature sensor to attain thermal equilibrium with the test solution before taking the measurement. If the temperature of the conductivity probe and the solution is drastically apart, a longer time should be allowed before taking readings.

• Once the measurement reading stabilizes the measurement is complete.

Fert.

FERTILIZER

• Select the second fertilizer ("2") by pressing the Fert. key again.

Fert.

FERTILIZER

• When using HI7686 together with HI 7669/ 2W all readings are automatically com-

pensated for any temperature difference. Wait for a few minutes for the temperature sensor to attain thermal equilibrium with the test solution before taking the measurement. If the temperature of the conductivity probe and the solution is drastically apart, a longer time should be allowed before taking readings.

• Once the measurement reading stabilizes the measurement is complete.

• If further measurements are desired, rinse the probe with a small amount of the next solution and test the sample.

1514

TDS

ppm

NaCl measurement mode

• By pressing the NaCl key the display will show "NaCl" to confirm the measurement mode.

NaCl

• The meter will automatically default the TDS factor value to 0.5 (shown on the secondary display) every time it is turned on.

• Change the TDS factor to the value of the solution, by pressing the FTR key. The TDS factor value will start blinking on the secondary LCD.

• When using HI7686 together with HI7669/ 2W all readings are automatically compen-

• Once the measurement reading stabilizes the measurement is complete.

• If further measurements are desired, rinse the probe with a small amount of the next solution and test the sample.

Total Dissolved Solids measurement mode

• By pressing the TDS key the display will show "TDS" to confirm the measurement mode.

FTR

TDS

ppm

• Enter the desired value by pressing the numeric keys and then press the ENTER key to confirm the value.

The stored value will be displayed and it will stop blinking.

E.g. If you want to enter 0.9 as TDS factor, proceed as follows:

Press the FTR key Press . Press 9 Press the ENTER key.

FTR

%TC

NaCl

ENTER

T.D.S.

ppm

TDS

1716

Cond.

• To clear the numeric entry,

PGM

press the CLEAR key.

Clear

See page 45 for further information about the TDS factor.

• Press the ATC/MTC key and the decimal point will blink on the TEMP. display (both when in the Celsius and in the Fahrenheit scale).

ATC MTC

• HI9032 is an auto-ranging TDS meter, and the reading automatically switches from one resolution to the next (from 0.00mg/l up to 19.99 g/l).

• When using HI7686 together with HI7669/ 2W all readings are automatically compen-

• Once the measurement reading stabilizes the measurement is complete.

• If further measurements are desired, rinse the probe with a small amount of the next solution and test the sample.

With Manual Temperature Compensation

• Immerse the HI7686 probe in the solution submerging the holes of the sleeve into the liquid. Tap the probe lightly on the bottom of the recipient to remove any air bubbles which may have being trapped inside the sleeve.

• Take the temperature of the solution with a Checktemp or a glass thermometer.

°F

• Press the °C or the °F key and

°C

the temperature value will start blinking.

• Enter the temperature of the solution by pressing the numeric keys and then press ENTER key to confirm the value. The stored value will be displayed and the decimal point will stop blinking.

E.g. If you want to enter 37.2°C as temperature value, proceed as follows:

Press 3 Press 7 Press . Press 2 Press the ENTER key and the display will

show "37.2°C".

°C

%TC

To clear the numeric entry, press the CLEAR key.

°F

ENTER

PGM

Clear

• The measurement reading displayed on the large LCD will be manually compensated for temperature variations.

1918

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