Hanna Instruments PH 300, PH 301, PH 302 User Manual

Download

Instruction Manual

pH300 pH301 pH302

Microprocessor

GLP Bench-top

pH/mV/ISE/°C Meters

ppm

DATE TIME

Rel mV

MEM

ON OFF

CFM

WRONG

CAL

LOG

ppmpHpH

INTV

mV°C

1 2

BUF

http://www.hannainst.com

PAPER PRINT

pH302

pH METER

RANGE CAL

CFM /

PGM

TIME

ENTER /

These Instruments are in

Compliance with the CE Directives

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 necessary information for the correct use of the instrument, as well as a precise idea of its versatility in a wide range of applications. These instruments are in compliance with CSA,

UL and directives.

(EN 50081-1 and EN 50082-1)

TABLE OF CONTENTS

Preliminary Examination................................... 1

General Description .......................................... 1

Functional Description pH300 .......................... 2

Specifications pH300 ........................................ 4

Functional Description pH301 .......................... 5

Specifications pH301 ........................................ 7

Functional Description pH302 .......................... 8

Specifications pH302 ...................................... 10

The Rear Panel ................................................ 11

LCD Functional Description ............................. 11

Operational Guide ........................................... 12

pH Calibration ................................................. 29

pH Values at Various Temperature ................. 39

ION Calibration (for pH301 only) ..................... 4 0

mv Calibration ................................................. 44

Temperature Calibration ................................. 50

Logging with pH301 ........................................ 55

Programming Functions with pH302 .............. 58

Interface with PC ............................................. 82

Troubleshooting Guide ................................... 83

Electrode Conditioning and Maintenance ...... 84

Temperature-Resistance Correlation

for HANNA pH Sensitive Glass ....................... 8 8

Additional Information about

Interface with PC ............................................. 90

Accessories..................................................... 99

Electrode Application Reference Guide ........ 10 7

Warranty......................................................... 108

CE Declaration of Conformity ...................... 109

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 pH meter comes supplied complete with:

• HI 1131B glass-body combination pH electrode

• HI 7669/2W temperature probe

• HI 3131B glass-body platinum ORP electrode

• pH 4.01 & 7.01 buffer solutions (20 mL each)

• 12VDC adapter (HI710005 or HI710006)

• 5 paper rolls (pH 302 only)

The KIT version includes also:

• HI76405 electrode holder

• HI 92000 Windows® compatible applica-

tion software

• HI 920010 PC connection cable

• Storage, cleaning and electolyte solutions

Note: Save all packing material until you are sure that the instrument functions correctly. All defective items must be returned in the original packing with the supplied accessories.

GENERAL DESCRIPTION

Hanna Instruments pH300, pH301 and pH302 are professional bench-top pH meters for pH, ORP (Oxidation Reduction Potential), ISE and temperature measurements. Their built-in microprocessor ensures accurate and userfriendly operation. pH measurements are automatically compensated for the temperature effect (ATC). These meters come equipped with a large, easy-to-read LCD which shows the pH or mV or ION (for pH301 only) with temperature simultaneously. The display has graphic symbols to make the calibration procedure easy to follow. Calibration is not allowed until the electrode has stabilized to ensure accurate measurements. Through the RS 232 serial port you can transfer sample measurements to a PC.

FUNCTIONAL DESCRIPTION pH 300

THE FRONT PANEL

ppm

DATE TIME

Rel mV

MEM

CFM

WRONG

CAL

LOG

OFF

COMM

CFM

WRONG

CAL

LOG

ONONOFF

COMM

ppmpHpH

INTV

mV°C

1 2

BUF

ppm

Rel mV

MEM

BUF

1 2

mV°C

RANGE CAL DATA

CAL MS°C

CFM

DATE TIME

ppmpHpH

RANGE

CAL MS°C

CFM

pH METER

°C

INTV

m s

CAL DATA

pH METER

°C

pH300

Keyboard on the Left

• COMM to display the current baud rate for RS232.

Keyboard on the Right

•

!°C and

"°C to manually set tempera-

ture (when the temperature probe is not connected) and to select the calibration buffer, the baud rate, the command prefix.

• CAL to enter and exit the calibration mode. After the pH calibration, to enter the calibration date, use this key to toggle between month, day and year.

• CAL DATA to display the date of last pH calibration. This also displays the offset and the slope values expressed in mV.

• CFM to confirm calibration values and to confirm baud rate and command prefix during communication setting mode.

• MR to recall the stored value.

• MS to hold and memorize the measured

value. The last reading will be frozen on the display until the key is released. At the same time this reading is stored in the memory.

• RANGE to select the measurement range (pH or mV).

• ON to turn the meter on

• OFF to turn the meter off

• Power LED to confirm the meter is on

SPECIFICATIONS pH 300

FUNCTIONAL DESCRIPTION pH 301

THE FRONT PANEL

Range pH 0.00 to 14.00

ISE ±399.9 mV

ORP ±1999 mV

°C -9.9 to 120.0

Resolution pH 0.01

ISE 0.1 mV

ORP 1 mV

°C 0.1

Accuracy pH ±0.01 (@20°C/68°F) ISE ±0.2 mV

ORP ±1mV

°C ±0.5

Typical EMC pH ±0.01 Deviation ISE ±0.6 mV

ORP ±1 mV

°C ±0.5

pH Calibration Automatic 1 or 2 points with

3 memorized buffers

(4.01, 7.01, 10.01)

pH Offset Max ±60mV or ±1pH pH Slope 70-108% Temperature Automatic 1 or 2 points with

Calibration 2 memorized values

(0 and 50°C)

Temperature Automatic or manual Compensation from -9.9 to 120°C (14 to 248°F)

Electrode HI1131B glass body combination

refillable pH electrode (included)

Temperature HI 76 6 9/ 2 W with 1 m probe (3.3') cable (included)

Input impedance 1012 Ω Computer RS 232 (optoisolated)

Interface Power supply 12 VDC (CSA, UL & CE approved) Environment 0 to 50°C (32 to 122°F); 95% RH Dimensions 280x200x75mm (11x7.9x3")

Shipping Weight 1.3 kg (2.9 lb.)

ppm

DATE

Rel mV

MEM

CFM

WRONG

CAL

LOG

ONONOFF

Rel mV

CFM

MEM

WRONG

CAL

LOG

OFF

CAL

DATE COMM

RANGE

CFM

TIME

ppm

INTV

mVmV°C

1 2

BUF

LOG

CAL DATA

ION

0.00/0.000

ppm

DATE

TIME

ppm

INTV

°C

LOG

CAL DATA

ION

0.00/0.000

• ON to turn the meter on

• OFF to turn the meter off

• Power LED to confirm the meter is on

pH301

pH / ION METER

°C

pH301

pH / ION

METER

°C

Keyboard on the Left

• CAL to start the calibration mode for pH, mV and ION. To set or quit the date or time setting mode. Used also during logging (to start logging press pH, mV or ION plus LOG plus CAL key; to stop logging press LOG plus CAL key).

• CFM to confirm calibration values.

• COMM to display the current baud rate

and command prefix for RS232.

• DATE to display the date.

• RANGE to display the calibration buffer

or the temperature on the secondary LCD during calibration. During setting of the date, to toggle between month, day and year. During setting of the time, to toggle between minutes, seconds and logging interval.

• TIME to display the time.

Keyboard on the Right

•

!°C and

"°C to manually set tempera-

ture (when the temperature probe is not connected) and to select the calibration buffer, the date and time, the baud rate, the command prefix.

• CAL DATA to display the date of last pH calibration. This also displays the offset and the slope 1 or slope 2 values expressed in mV.

• ION to select the ION measurement range.

• mV to select the mV measurement range.

• pH to select the pH measurement range.

• .00/.000 to select two or three decimal

points for pH measurements.

SPECIFICATIONS pH 301

Range pH -1.999 to 19.999

mV ±1999.9

ppm 0.001 to 19999

°C -9.9 to 120.0

Resolution pH 0.01 or 0.001

mV 0.1

ppm 0.001 (from 0.001 to 9.999)

0.01 (from 10.00 to 99.99)

0.1 (from 100.0 to 999.9) 1 (from 1000 to 19999)

°C 0.1

Accuracy pH ±0.002 (@20°C/68°F)m V ±0.1 (±799.9) / ±0.2 (±1999.9)

ppm ±0.5%

°C ±0.5

Typical EMC pH ±0.01 Deviation mV ±0.3

ppm ±1%

°C ±0.5

pH Calibration Automatic 1, 2 or 3 points with

6 memorized buffers

(1.68, 4.01, 6.86, 7.01, 9.18, 10.01)

pH Offset Max ±60mV or ±1pH pH Slope 70-108% ppm Calibration Automatic 1 or 2 points with

5 memorized buffers (0.1, 1, 10, 100, 1000)

ppm Offset Max ±1999.9mV ppm Slope From ±20mV to ±100 mV

[mV/log(0.001xppm)]

Temperature Automatic 1 or 2 points with Calibration 2 memorized values (0 and 50°C)

Temperature Automatic or manual (for pH only) Compensation from -9.9 to 120°C (14 to 248°F)

Electrode HI1131B glass body combination

refillable pH electrode (included)

Temperature HI 7669/2W with 1 m probe (3.3') cable (included)

Input impedance 1012 Ω Logging Interval 1, 15, 30 seconds or

1, 5, 30, 60, 120, 180 minutes

PC Interface RS 232 (optoisolated) Power supply 12 VDC (CSA, UL & CE approved) Environment 0 to 50°C (32 to 122°F); 95% RH Dimensions 280x200x75mm (11x7.9x3") Shipping Weight 1.3 kg (2.9 lb.)

FUNCTIONAL DESCRIPTION pH 302

THE FRONT PANEL

Keyboard on the Left

• 0 to 9 for numeric and decimal data in- put.

• CLEAR to cancel wrong data entry during programming.

Rel mV

ppm

DATE TIME

Keyboard on the Right

• CAL to perform the pH, mV or tempera-

MEM

CFM

WRONG

CAL

LOG

OFF

ppmpHpH

INTV

mV°C

1 2

BUF

PAPER

pH302

pH METER

RANGE

CFM /

CAL

PGM

TIME

ENTER /

ture calibration.

• CFM/

! to confirm pH/mV/temperature

calibration values or to manually set temperature (when the temperature probe is not connected).

• ENTER/

"°C to terminate the numeric data

entry or to manually set temperature (when the temperature probe is not connected) or to select the buffer value during pH calibration.

• PAPER to pull the paper.

ppm

DATE TIME

Rel mV

MEM

CFM

WRONG

CAL

LOG

ONONOFF

CLEAR

ppmpHpH

INTV

mV°C

1 2

BUF

PAPER

pH302

pH METER

RANGE

CFM /

CAL

PGM

TIME

ENTER /

• PGM to select a program.

• PRINT to obtain a printout (prints time,

date, sample number and pH or mV values).

• RANGE to select the measurement range (pH or mV) or to display the calibration buffer or the temperature on the secondary LCD during calibration.

• TIME to display the time and the date.

• ON to turn the meter on

• OFF to turn the meter off

• Power LED to confirm the meter is on

1110

SPECIFICATIONS pH 302

Range pH 0.00 to 14.00

ISE ±399.9 mV

ORP ±1999 mV

°C -9.9 to 120.0

Resolution pH 0.01

ISE 0.1 mV

ORP 1 mV

°C 0.1

Accuracy pH ±0.01 (@20°C/68°F) ISE ±0.2 mV

ORP ±1mV

°C ±0.5

Typical EMC p H ±0.01 Deviation ISE ±0.3 mV

ORP ±1 mV

°C ±0.5

pH Calibration Automatic 1, or 2 points with

3 memorized buffers

(4.01,7.01,10.01)

Temperature Automatic 1 or 2 points with Calibration 2 memorized values

(0 and 50°C)

Temperature Automatic or manual Compensation from -9.9 to 120°C (14 to 248°F) (for pH only)

Electrode HI1131B glass body combination

refillable pH electrode (included)

Temperature HI 76 6 9/ 2 W with 1 m probe (3.3') cable (included)

Input impedance 1012 Ω Printer Dot matrix, 44mm wide paper Languages English, German, French,

Spanish, Italian & Swedish

PC Interface RS 232 (optoisolated) Power supply 12 VDC (CSA, UL & CE approved)

Environment 0 to 50°C (32 to 122°F); 95% RH Dimensions 280x200x75mm (11x7.9x3") Shipping Weight 1.3 kg (2.9 lb.)

THE REAR PANEL

MEASUREMENT

REFERENCE ELECTRODE

TEMPERATURE

ELECTRODE

12345 6

RESET 12VDC RS 232

PROBE

ooooo

oooo

1. Reference Electrode Connector (Ø 4 mm)

2. BNC socket for measurement electrode

3. Socket for Temperature Probe

4. Reset Button

5. DC Power Socket (for HI710005 or HI710006)

6. RS 232 Connector

LCD FUNCTIONAL DESCRIPTION

Primary Display

CFM

CAL

LOG

Rel mV

MEM

WRONG

BUF

ppm

1 2

mV°C

ppmpHpH

DATE TIME

INTV

m s

Secondary Display

1312

OPERATIONAL GUIDE

ELECTRODE AND PROBE CONNECTIONS

For combination pH or ISE or ORP electrodes (with internal reference) plug the electrode's BNC to the socket provided (see page 11).

For electrode with separate reference, connect the measuring electrode's BNC to the BNC socket and the reference electrode's plug to the socket provided (see page 11).

For temperature measurements and automatic temperature compensation connect the temperature probe to the °C socket (see page 11).

If the temperature probe is not connected, when turned on, the meter will display a default tem-

°C

perature of 25°C or the last recorded temperature (if the temperature probe is disconnected when the meter is on) on the secondary LCD. The "°C" indicator will be flashing.

POWER CONNECTION

Plug the 12VDC adapter (HI710005 or HI710006) into the DC socket (see page11).

Plug the adapter to the mains.

Note: The instrument uses the following con-

figuration.

It is recommendable to use the Hanna HI710005 or HI710006 voltage adapters (sup-

plied with the meters) that use the proper polarity configuration.

The meters 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.

Press ON to turn the meter on. The power LED will remain lit until OFF is pressed to turn the meter off.

OFF

When the meters are turned on, the microprocessor checks if any calibration data is in memory (i.e. if the offset is within ±60mV and the slope between 70-108%).

If the calibration data is valid, the meter will op-

erate in the normal measurement mode and default to pH measurement

°C

mode with the temperature on the secondary LCD.

If the calibration data is not valid or the calibra-

tion data is lost, the "CAL" indicator will be displayed to prompt the

CAL

°C

user to perform the pH calibration. If the user chooses not to perform the calibration and presses CAL to quit from the calibration mode, the offset and the slope of the instrument would be set to 0 mV and 100% respectively.

1514

pH300, pH301 and pH302 use an EEPROM to retain the pH calibration, mV calibration, temperature calibration as well as the serial communication setting. The instrument will store the respective data after a calibration or serial communication setting, even when it is not plugged-in.

Press CAL to enter the setting mode and the month will be flashing.

CAL

DATE

For pH 302 only

pH302 uses a rechargeable battery to retain

the pH calibration data. It lasts approximately one month when fully charged. The battery is automatically charged any time the meter is plugged-in (either turned on or off).

If you need to unplug the instrument, press OFF before

OFF

disconnecting the meter from the mains. Only in this case will the instrument retain the memorized data. Otherwise, the instrument needs to be re-calibrated. In the case of a power failure while the instrument is operational, re-calibration is required.

When the instrument is initially switched on, the microprocessor checks if any calibration data is in memory (i.e. if the offset is within ±1 pH and the slope between 70 - 108%).

If the calibration data are not memorized, the offset and slope of the instrument will be set to 0 mV and 100% respectively.

Use UP or DOWN to select the month.

°C

Press RANGE and the day will start to flash.

RANGE

DATE

Use UP or DOWN to select the day.

°C

Press RANGE and the year on the secondary LCD will flash.

RANGE

DATE

SETTING THE DATE AND THE TIME AND THE LOGGING INTERVAL (for pH 301 only)

Press DATE to display the date. The month and the day will be displayed on the primary LCD, the year on the secondary one.

DATE

Use UP or DOWN to select the year.

°C °C

1716

Press CAL to exit the date setting mode.

CAL

Press RANGE and the logging interval on the secondary LCD will come up.

RANGE

TIME

Press TIME to display the time. The hour and the minutes will be displayed on the primary LCD, the logging interval on the secondary one.

TIME

INTV

Press CAL to enter the setting mode and the hour will flash.

CAL

TIME

INTV

Use UP or DOWN to select the hour.

°C °C

Press RANGE and the minutes will flash.

RANGE

TIME

INTV

Use UP or DOWN to select the logging interval.

°C

CAL

Press CAL to exit the time setting mode.

VIEWING THE DATE AND THE TIME (for pH 301 only)

Press DATE to display the date. The month and the day will be displayed on the primary LCD, the year on the secondary one.

DATE

Use UP or DOWN to select the minutes.

°C

INTV

Press TIME to display the time. The hour and the minutes will be displayed on the primary LCD, the logging interval on the secondary one.

TIME

1918

TIME

INTV

SETTING THE DATE AND THE TIME AND THE LOGGING INTERVAL (for pH 302 only)

See program No. 1 (page 60).

VIEWING THE DATE AND THE TIME (for pH 302 only)

Press TIME to display the time (HH/MM).

TIME

Press TIME again to display the date (MM/ DD).

TIME

DATE

Allow 1 or 2 minutes for

the electrode to stabilize.

°C

pH is displayed on the primary display and temperature on the second-

ary one. If readings are out of

range "---" will appear on the LCD display.

For pH 301 only:

Press the .00/.000 key to change the resolution from two to three decimal points.

0.00/0.000

°C

TAKING pH MEASUREMENTS

Make sure that the instrument has been calibrated for pH before taking pH measurements (see page 29).

For pH 300 and pH 302 only

RANGE

Select the pH measurement mode by pressing RANGE.

For pH 301 only

Select the pH measurement mode by pressing pH.

To take a pH measurement simply submerge the tip (4cm/ 1½") of the pH electrode and the temperature probe into the sample to be tested.

4 cm

(1½")

It is recommended that the electrode is rinsed thoroughly for better conditioning. For this rinsing process, it is recommended to use a liberal amount of the sample to be measured.

If measurements are taken in different samples successively, it is recommended that the electrode and the temperature probe are rinsed thoroughly with deionized water or distilled water (if not available, tap water may also be used) and then blot dry between each measurement.

The pH reading is directly effected by temperature. In order for the meter to measure the pH accurately, temperature must be taken into consideration.

A perfect equilibrium between the pH electrode and the sample is reached in approximately 15 minutes.

To use the meter's Automatic Temperature

Compensation feature, submerge the HI7669/2W temperature probe into the sample

2120

as close to the electrode as possible and wait for 1-2 minutes.

If you know the temperature of the sample to be tested you can compensate for it manually.

If manual temperature compensation is desired the temperature probe must be disconnected from the instrument.

The display will then show the default temperature of 25°C or the last recorded tempera-

°C

ture reading. "°C" is blinking. Note the temperature of the

sample using a ChecktempC or a glass thermometer. The temperature can now be adjusted with UP and DOWN. If the temperature

°C °C

probe is connected to the meter, the secondary LCD figure displays the measured temperature reading and the "°C" indicator

CFM/

ENTER/

does not blink. Pressing UP or DOWN will not alter the temperature reading.

VIEWING THE pH CALIBRATION DATA For pH 300:

Press CAL DATA and the meter will display the last pH calibration data.

CAL DATA

Press UP or DOWN to get this information in the following sequence:

°C

a. Date of the last pH

°C

DATE

calibration (month, day and year)

b.Offset calibration

CAL

value expressed in mV and displayed on

the primary LCD with the buffer used to calibrate the offset on the secondary LCD.

CAL

The offset pH value should be between ±30 mV. For values between ±30 and ±60 mV change the reference electrolyte and repeat the calibration procedure. For values higher than +60 mV or lower than

-60mV the electrode is no longer reliable. See the electrode maintenance section on page 84.

c.Slope calibration

value directly expressed in mV/pH is displayed on the primary LCD with the

CAL

2nd buffer used to calibrate the offset on the secondary LCD.

For pH 301:

Press pH followed by

CAL DATA

CAL DATA and the meter will display the

last pH calibration data.

2322

Press UP or DOWN to get this information in the following sequence:

°C

a. Date of the last pH

°C

DATE

calibration (month, day and year)

CAL

b. Time when the last

TIME

pH calibration was completed (hour and minutes).

CAL

c.Offset calibration

value expressed in mV and displayed on the primary LCD with the buffer used

CAL

to calibrate the offset on the secondary LCD.

The offset pH value should be between ±30 mV. For values between ±30 and ±60 mV change the reference electrolyte and repeat the calibration procedure. For values higher than +60 mV or lower than

-60mV the electrode is no longer reliable. See the electrode maintenance section on page 84.

d. Acid slope calibra-

tion value expressed in mV/pH and displayed on the primary LCD with the

CAL

2nd buffer used to calibrate the offset on the secondary LCD.

e. Alkaline slope calibra-

tion value expressed

in mV/pH and displayed on the primary LCD with the 3 buffer used to cali-

CAL

brate the offset on the secondary LCD.

For pH 302:

See program #3 (page 66).

TAKING REDOX MEASUREMENTS

pH300, pH301 and pH302 have the capabil-

ity to take ORP measurements. An optional ORP electrode must be used to perform these measurements (see page 105).

RANGE

For pH 300 or pH 302:

To get into the mV mode (ORP), press RANGE.

For pH 301:

To get into the mV mode, press mV.

To measure the mV of a solution simply submerge the ORP electrode tip (4 cm/1½") into the sample to be tested. Allow a few minutes for the

reading to stabilize. The display will indicate the absolute mV value

(positive or negative).

For pH 300 and pH 302 only

When values are less

Rel mV

than ±400 mV, tenths of mV are displayed; for values greater than

°C

±400mV, the decimal digit disappears.

4 cm

2524

Note that the change in scale (from 0.1 mV to 1 mV as resolution) is automatic.

For all models:

Rel mV

"---" appears if the value exceeds ±1999 mV (out of range).

Oxidation-reduction potential (REDOX) measurements provide the quantification of the oxidizing or reducing power of the sample tested.

To correctly perform a redox measurement, the surface of the ORP electrode must be clean and smooth.

When not in use, the tip of the electrode should be kept moist and safe from any mechanical stress which might cause damage to the gold/platinum junction.

TAKING ION MEASUREMENTS

pH300, pH301 and pH302 have the capabil-

ity to take ION measurements. An optional ISE electrode must be used to perform these measurements.

RANGE

For pH 300 or pH 302:

To get into the mV mode (ORP or ISE), press RANGE.

For pH 300 and pH 302:

The display will indicate the absolute mV value (positive or negative).

When values are less

Rel mV

than ±400 mV, tenths of mV are displayed; for

°C

values greater than ±400mV, the decimal digit disappears. Note that the change in scale (from 0.1 mV to 1 mV as resolution) is automatic.

For pH 301:

The display will indicate

ppm

the ppm value expressed in ppm or mV (depend-

°C

ing on the measured sample). Note that the change in scale (from 0.001ppm to 0.01ppm or

0.1 ppm as resolution) is automatic.

For all models:

Rel mV

"---" appears if the value exceeds ±1999 mV (out of range).

When not in use, the tip of the electrode should be kept moist and safe from any mechanical stress which might cause damage to the junction.

For pH 301:

To get into the ION mode, press ION.

Simply submerge the ISE electrode tip (4 cm/1½") into the sample to be tested. Allow a few minutes for the reading to stabilize.

ION

VIEWING THE ION CALIBRATION FACTOR ON THE LCD (for pH 301 only)

Press ION followed

ION

CAL DATA

by CAL DATA and the meter will display the last ION cali- bration data.

°C °C

4 cm

Press UP or DOWN to get this information in the following sequence:

2726

a. Date of the last ION

DATE

calibration (month, day and year)

b. Time when the last

CAL

ION calibration was completed (hour and

TIME

minutes)

c.Offset calibration

value expressed in

CAL

INTV

mV and displayed on the primary LCD

with the value used to calibrate the offset on the secondary LCD.

d. Slope calibration

value expressed in

CAL

ppm

mV/[log (0.0001xppm)] and displayed on the primary LCD with

CAL

ppm

the 2nd value used to calibrate the slope on the secondary LCD.

TAKING TEMPERATURE MEASUREMENTS

Taking a temperature measurement is very easy.

Connect the temperature probe to the instrument and turn the instrument ON.

Dip the liquid/general purpose temperature probe HI7669/2W into the sample

Allow the reading on the secondary display to stabilize (1 or 2 minutes).

°C

PRINTING FUNCTION (for pH 302 only)

Press PRINT to get a printout at

any time. All the printouts will be complete

with date, time, sample No., temperature and measurement value (pH or mV depending on the selected measurement range).

DATE 1/02 TIME 12:21 SAMPLE 1 °C 17.9 pH 7.18

DATE 1/02 TIME 12:40 SAMPLE 5 °C 20.5 mV -350.0

HOLD FUNCTION (for pH 300 only)

To hold and memorize the measured value, press MS. The last reading will be frozen on the display until the key is released. At the same time, this reading is stored in the memory. During this operation, the "MEM" indicator is lit.

MEM

°C

2928

To recall the stored memory value, press MR and the memorized reading will be displayed with the MEM indicator lit.

RESET BUTTON

The RESET button (see page 11) 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.

It is necessary to press the reset button and restart the entire operation.

Calibration points should remain memorized. It is recommended to verify calibration before proceeding.

pH CALIBRATION

For greatest accuracy, it is recommended that the instrument is calibrated frequently.

For a faster operation, it is possible to standardize the electrode at a value close to the expected sample value or at pH 7.01 only (one point calibration), but it is always good practice to calibrate at least 2 points.

For pH 301 only

Due to electrode conditioning time the electrode must be kept immersed for a few seconds to stabilize. The meters are equipped with a stability indicator and the user will be guided step by step with easy indications on the display during the pH calibration. This will make the calibration a simple and error-free procedure.

The standard calibration program of the meter is prepared for 3 (maximum) buffers. The selectable pH values are: 1.68, 4.01, 6.86,

7.01, 9.18, 10.01.

INITIAL PREPARATION

Pour small quantities of

HI 7004

pH7.01 (HI7007/HI8007) and pH4.01 (HI7004/HI8004) and/

HI 7004

HI 7007

or pH10.01 (HI7010/HI8010) solution into individual beakers. If possible, use plastic beakers to minimize any EMC interferences.

For accurate calibration use two beakers for each buffer solution, the first one for rinsing the electrode, the second one for calibration.

By doing this,

RINSE

CALIBRATION

contamination between the buffers is mini-

HI 7007

mized. To get accurate readings, use pH 7.01 and

3130

pH 4.01 if you are going to measure acid samples, or pH 7.01 and pH 10.01 for alkaline measurements or, for pH301 only, perform a 3-point calibration for the entire range.

PROCEDURE

RANGE

• Press RANGE (for pH300 and pH 302) to select the pH measurement mode.

• Press pH (for pH301) to select the pH measure-

ment mode.

• Remove the protective cap from the pH electrode.

ONE POINT CALIBRATION (OFFSET)

• Immerse the pH electrode into the selected buffer (e.g. pH 7.01) buffer solution and shake briefly.

Note: the electrode should

HI 7007

be submerged approximately 4 cm (1½") into the solution. The tempera-

ture probe should be located as close as

4 cm

possible to the pH electrode.

• Press CAL. The primary LCD will display the pH value using the current offset and

slope, with the "CAL" and "

CAL

BUF

" indicators lit.

CAL

BUF

For pH 302 only: the printer will also print step by step instructions for the calibration procedure.

Dip the electrode in the pH 7 solution; wait 30 sec and then press CFM

• Select the buffer value by pressing UP or DOWN or just DOWN (for pH 302) until the secondary LCD displays the value of the first solution (e.g. “7.01”).

°C

ENTER/

°C

CAL

BUF

• Only when the reading is stable (less

" in-

CFM

CFM/

CFM

than ±0.03 variation in a 10 seconds time

interval) the "

BUF

dicator will stop flashing (after about 30 seconds) and the "CFM" indicator will start blinking.

• Press CFM to confirm the calibration.

If the reading is not close to the selected buffer, "WRONG

WRONG

BUF

and "WRONG " will blink alternately. If the reading is close to the selected buffer (±1pH), the meter stores the reading

WRONG

BUF

3332

CFM/

(and adjusts the offset point). The buffer value is

then displayed on the primary LCD and the secondary LCD will display the ex-

CAL

BUF

pected second buffer value. For pH 302 only: the printer will print

further instructions for the calibration procedure.

Now dip the electrode in 2nd solution, wait 30 sec and then press CFM

• Press CAL and the calibration process is ended with just the offset of the meter calibrated. For best accuracy however, it is recommended that a two-point calibration is performed.

For pH 300 only

The calibration process is complete and the display will ask for the date

CAL

entry.

°C

Use UP or DOWN to select the month, the day and the year.

Use CAL to toggle between month, day and year.

CAL

°C

DATE

After entering the calibration date, press CFM and the meter will return to the normal operating

mode.

Note: during calibration, the

RANGE

secondary LCD displays the selected buffer value. By pressing RANGE the temperature value can be also displayed. This will allow you to check the buffer temperature during calibration.

TWO-POINT CALIBRATION

A two-point calibration is recommended for best accuracy. As a first point use pH 7.01 (or pH 6.86 can also be used for pH 301). As a second point use pH 4.01 (or pH 1.68 for pH 301 only) if you are going to measure acid samples (pH 7 or less), use pH10.01 (or pH 9.18 for pH301 only) if you are going to measure alkaline samples.

CAL

• Proceed as described above for one point calibration but do not quit calibration by pressing CAL at the end.

• After the first calibration point is confirmed, immerse the pH electrode into the second buffer solution (pH

4.01 or pH10.01; for pH301

HI 7004

only, the second buffer can also be pH 1.68 or pH 9.18) and shake briefly.

Note: the electrode should

be submerged approximately 4 cm (1½") into the solu-

4 cm

tion. The temperature probe should be located as close as possible to the pH electrode.

3534

• Press UP or DOWN or just DOWN (for pH 302) until the secondary display changes the value of the second solution (e.g. “4.01”).

°C

ENTER/

°C

CAL

BUF

• Only when the reading is stable (less than ±0.03 variation in a 10 seconds time

interval), the "

BUF

" in-

CFM

dicator will stop flashing (after about 30

CFM/

CFM

seconds) and the "CFM" indicator will blink.

• Press CFM to confirm the calibration.

If the reading is not within 70% to 108% of the buffer solution, "WRONG

BUF

" and

WRONG

"WRONG " will blink alternately. If the reading is close to the selected buffer (between 70 to 108%), the meter

WRONG

BUF

stores the reading (and adjusts the slope point).

For pH 300 only

DATE

The calibration process is complete and the display will ask for the date entry.

CAL

°C

Use UP or DOWN to select the month, the day and the year.

Use CAL to toggle between month, day and

CAL

year. After entering the cali-

bration date, press CFM and the meter will re-

CFM/

turn to the normal operating mode.

For pH 302 only

The calibration process is complete. The meter will print a confirm message and return to the normal operating mode.

Calibration completed

For pH 301:

The second buffer value is then displayed on the primary LCD and the secondary LCD will display the expected third buffer value.

CAL

• Press CAL and the calibration process is ended with the offset and the 1st slope of the meter calibrated.

Note: the meter will automatically skip the

buffer that was used for the first calibration to avoid erroneous calibration.

3736

RANGE

Note: during calibration, the

secondary LCD displays the selected buffer value. By pressing RANGE the temperature value can be also displayed. This will allow you to check the buffer temperature during calibration.

THREE-POINT CALIBRATION (for pH301 only)

A three-point calibration (for the entire pH range) can be performed with pH301. These are the selectable buffers:

1st buffer 2nd/3rd buffer 3rd/2nd buffer

(offset) (1st slope) (2nd slope):

pH 6.86 pH 1.68 pH 9.18

or 7.01 or 4.01 or 10.01

or 9.18 or 4.01

• Proceed as described for the

CAL

two-point calibration but do not quit calibration by pressing CAL at the end.

• After the second calibration point is confirmed, immerse the pH electrode into the third buffer solution (e.g. pH10.01) and shake briefly.

HI 7004

HI 7010

Note: the electrode should

be submerged approximately 4 cm (1½") into the solu-

tion. The temperature probe should be lo-

4 cm

cated as close as possible to the

°C

pH electrode.

• Select the 3rd buffer value on the secondary display by pressing UP or DOWN (e.g.”10.01”).

• Only when the reading is stable (less

" in-

CFM

than ±0.03 variation in a 10 seconds time

interval), the "

BUF

dicator will stop flashing (after about 30

CFM/

seconds) and the "CFM" indicator will blink.

• Press CFM to confirm the calibration.

If the reading is not within 70% to 108% of the buffer solution, "WRONG

BUF

" and

WRONG

"WRONG " will blink alternately. If the reading is close to the selected buffer (between 70 and 108%), the meter

WRONG

BUF

stores the reading (and adjusts the 2 slope point).

• The calibration process is ended with the offset and the 1st and 2nd slope of the meter calibrated.

Note: the meter will automatically skip the

buffer that was used for the first and second calibration to avoid erroneous calibration.

Note: during calibration, the sec-

RANGE

ondary LCD displays the selected buffer value. By pressing RANGE the temperature value can be also displayed. This will allow you to check the buffer temperature during calibration.

3938

CALIBRATION WITH MANUAL TEMPERATURE COMPENSATION

If for some reason the temperature probe is defective, or it is required to calibrate with manual temperature compensation, follow the procedure below:

• Unplug the temperature probe from the meter.

• Note the temperature of the

°C

buffer solutions with a ChecktempC or a glass thermometer with a resolution of 0.1°C.

•

For pH300 and pH301 only

Use UP or DOWN to

°C°C

manually adjust the display reading to the value of the reference thermometer (e.g. 20°C). The value will be displayed on the secondary LCD and "°C" symbol will flash.

•

For pH302 only

°C

Press the +/- key (for eventual negative figures) followed by the noted temperature on the numeric keypad (e.g. 20°C) and ENTER. The value will be displayed on the secondary LCD and "°C" symbol will be flashing.

ENTER/

°C

• Follow the calibration procedure as for pH calibration with temperature probe connected (see page 29).

pH VALUES AT VARIOUS

TEMPERATURE

The calibration buffer solutions are effected by temperature changes to a lesser degree than normal solutions.

When manually entering the calibration values (see program #2 for pH302) refer to the following chart.

TEMP pH VALUES

°C °F 1.68 4.01 6.86 7.01 9.18 10.01

104

113

122

131

140

149

158

1.67

1.68

1.69

1.70

1.71

1.72

1.73

1.74

4.01

4.00

4.01

4.02

4.03

4.04

4.05

4.06

4.07

4.09

4.11

4.12

6.98

6.95

6.92

6.90

6.88

6.86

6.85

6.84

6.83

6.84

6.85

7.13

7.10

7.07

7.04

7.03

7.01

7.00

6.99

6.98

6.99

9.46

9.39

9.33

9.27

9.22

9.18

9.14

9.10

9.07

9.04

9.01

8.99

8.97

8.95

8.93

10.32

10.24

10.18

10.12

10.06

10.01

9.96

9.92

9.88

9.85

9.82

9.79

9.77

9.76

9.75

When using automatic calibration, the appropriate value will be displayed.

For instance, if the buffer temperature is at 25°C, the display will show "pH 4.01" or "7.01" or "10.01".

If the buffer temperature is at 20°C, the display will show "pH 4.00"/"7.03"/"10.06".

If the buffer temperature is at 50°C, the display will show pH "4.06"/"6.98"/"9.82".

4140

ION CALIBRATION (for pH301 only)

For greatest accuracy, it is recommended that the instrument is calibrated frequently.

The standard calibration program of the meter, however, is prepared for 2 (maximum) buffers. The selectable ION values are:

ppm 0.1, 1, 10, 100, 1000.

Due to electrode conditioning time the electrode must be kept immersed a few seconds to stabilize. The meters are equipped with a stability indicator and the user will be guided step by step with easy indications on the display during the ION calibration. This will make the calibration a simple and error-free procedure.

INITIAL PREPARATION

Pour small quantities of the chosen ION calibration solution into individual beakers. If possible, use plastic beakers to minimize any EMC interferences.

For accurate calibration use two beakers for each solution, the first one for rinsing the electrode, the second one for calibration. By doing this, contamination between the buffers is minimized.

PROCEDURE

ION

• Press ION to select the ION measurement mode.

• Remove the protective cap from the ISE electrode.

ONE POINT CALIBRATION (OFFSET)

• Immerse the ISE electrode into the selected buffer (e.g. 10 ppm) solution and shake briefly.

Note: the electrode should

be submerged approximately 4 cm (1½") into the solution.

• Press CAL. The primary LCD will display the ION value using the current offset and

slope, with the "CAL" and "

CAL

• Select the buffer value

CAL

BUF

" indicators.

ppm

BUF

°C

by pressing UP or DOWN until the secondary LCD displays the value of the first solution (e.g. “10”).

• Only when the reading is stable, will the

BUF

" indicator stop

CFM

flashing (after about 30 seconds) and the "CFM" the indicator start blinking.

CFM/

• Press CFM to confirm the calibration. The meter stores the reading (and adjusts the offset point). The calibration solution value is then displayed on the primary LCD

ppm

and the secondary LCD will display the expected 2nd calibration value.

CAL

ppm

BUF

4 cm

°C

4342

• Press CAL and the calibra-

CAL

tion process is ended with only the offset of the meter calibrated. For best accuracy however, it is recommended that a two-point calibration is performed.

Note: during calibration, the sec-

ondary LCD displays the

RANGE

selected buffer value. By pressing RANGE the temperature value can be also displayed. This will allow you to check the buffer temperature during calibration.

TWO-POINT CALIBRATION

A two-point calibration is recommended for best accuracy.

• Proceed as described above for one point calibration but do not quit calibration by pressing CAL at the end.

• After the first calibration point is confirmed, immerse the ISE electrode into the second calibration solution (e.g. 100 ppm) and shake briefly.

Note: the electrode should

be submerged approximately 4 cm (1½") into the solu-

tion.

• Press UP or DOWN until the secondary display changes the value of the second solution (e.g. “100”).

4 cm

• Only when the reading is stable, the "

indicator will stop

BUF

CFM

flashing (after about 30 seconds) and the "CFM" indicator will blink. The meter will check for the slope reading.

CFM/

• Press CFM to confirm the calibration.

The meter stores the reading (and adjusts the slope point).

The ION calibration process is complete and the meter will return to the normal operating mode.

Note: the meter will automatically skip the buffer

that was used for the first calibration to avoid erroneous calibration.

Note: during calibration, the sec-

ondary LCD displays the

RANGE

selected calibration value. By pressing RANGE the temperature value can be also displayed. This will allow you to check the solution temperature during calibration.

°C

ppm

CAL

BUF

4544

mV CALIBRATION

The meter has been factory calibrated for the mV and is ready for measurements. The calibration data are stored in the EEPROM.

The ORP electrodes are interchangeable and no mV calibration is needed when the ORP electrode is replaced.

• Set the simulator to "390.0mV".

Wait for 5 seconds and press CFM to confirm the value.

• The primary LCD will display "-390.0 mV".

CAL

CFM

°C

If, for any reason, the mV measurements are out of accuracy, re-calibration should be carried out as follows.

INITIAL PREPARATION

Prepare a simulator with an accuracy of ±0.1mV that can provide:

• ±390.0mV and ±1000.0mV for pH300

• 0.0 mV, ±500.0 mV and ±1500.0 mV for

pH301 and pH302 .

PROCEDURE FOR pH 300

• Connect the meter to the simulator through the connection cable (connect it to the BNC electrode socket).

• Turn the pH300 on by pressing ON plus CFM simultaneously.

CFM

Note: this calibration can also be per-

formed immediately after the temperature calibration (see page 50).

• The primary LCD will display

"390.0 mV".

°C

CAL

• Set the simulator to

CFM

"-390.0mV". Wait for 5 seconds and press

CFM to confirm the value.

• The primary LCD will display "1000mV".

CAL

°C

• Set the simulator to

"1000.0mV".

CFM

Wait for 5 seconds and press CFM to confirm the value.

• The primary LCD will display "-1000mV".

CAL

°C

• Set the simulator to

"-1000.0mV".

CFM

Wait for 5 seconds and press CFM to confirm the value.

The mV calibration process is complete and the meter will return to the normal operating mode.

4746

CFM

PROCEDURE FOR pH 301

• Connect the meter to the simulator through the connection cable (connect it to the BNC electrode socket).

• Turn the pH301 on by pressing ON plus CAL simultaneously.

CAL

• The primary LCD will

display "0.0 mV".

• Set the simulator to "0.0mV".

CAL

• As soon as the reading is stable (after about 10 seconds), the "CFM" indicator will start blinking. Press CFM to confirm the value.

CFM

• The primary LCD will

display "0.0 mV".

• Set the simulator to "0.0mV".

CAL

• As soon as the reading is stable (after about 10 seconds), the "CFM" indicator will start blinking. Press CFM to confirm the value.

CFM

• The primary

CFM

LCD will display "500 .0 mV".

• Set the simulator to "500.0mV".

CAL

• As soon as the reading is stable (after about 10 seconds), the "CFM" indicator will start blinking. Press CFM to confirm the value.

CFM

• The primary

LCD will display "1500.0 mV".

• Set the simulator

CAL

to "1500.0mV".

• As soon as the reading is stable (after about 10 seconds), the "CFM" indicator will start blinking. Press CFM to confirm the value.

CFM

The mV calibration process is complete and the meter will return to the normal operating mode.

PROCEDURE FOR pH 302

• Connect the meter to the simulator through the connection cable (connect it to the BNC electrode socket).

• Turn the pH302 on by pressing ON plus CFM simultaneously.

CFM/

CFM

4948

CFM

• The primary LCD will display "0.0 mV",

• Set the simulator to

CAL

"0.0mV".

• As soon as the reading is stable (after about 10 seconds), the "CFM" indicator will start blinking. Press CFM to confirm the value.

CFM/

CFM

• The primary LCD will display "500.0 mV".

• Set the simulator to

CAL

"500.0mV".

• As soon as the reading is stable (after about 10 seconds), the "CFM" indicator will start blinking. Press CFM to confirm the value.

CFM/

• The primary

LCD will display "1500.0 mV".

• Set the simulator

CAL

to "1500.0mV".

• As soon as the reading is stable (after about 10 seconds), the "CFM" indicator will start blinking. Press CFM to confirm the value.

CFM/

The mV calibration process is complete and the meter will return to the normal operating mode.

CFM

• The primary LCD will

display "0.0 mV".

• Set the simulator to "0.0mV".

CAL

• As soon as the reading is stable (after about 10 seconds), the "CFM" indicator will start blinking. Press CFM to confirm the value.

CFM/

CFM

5150

TEMPERATURE CALIBRATION (for Technical Personnel only)

The pH meter has been factory calibrated for the temperature and is ready for measurements.

The temperature probes are interchangeable and no temperature calibration is needed when the temperature probe is replaced.

If, for any reason, the temperature measurements are inaccurate, re-calibration should be carried out as follows.

• Wait for about 30 seconds. Press CFM. The secondary LCD section will show "50.0°C".

CFM

°C

CAL

• Immerse the temperature probe in the vessel with hot water.

50 °C

(122 °F)

INITIAL PREPARATION

• Prepare a vessel con-

°C

taining ice (at

0.0°C/32°F) and water and another one

0 °C

(32 °F)

50 ºC

(122 ºF)

containing hot water (at a temperature of 50.0°C/122°F). Place insulation material around the container to minimize temperature changes.

• Use a ChecktempC or a calibrated ther- mometer with a resolution of 0.1 °C as a reference thermometer.

PROCEDURE FOR pH 300

• Switch the pH300 on while pressing CAL. The "CAL" indicator will be lit. The secondary LCD section will show "0.0°C".

• Immerse the temperature

CAL

°C

probe in the vessel with the ice and water.

0 °C

(32 °F)

CFM

• Wait for about 30 seconds. Press CFM.

• Complete your temperature

CAL

calibration by pressing CAL if you do not want to perform the mV calibration (see page44).

PROCEDURE FOR pH 301

• Switch the pH301 on while pressing CFM. The "CAL" indicator will be lit. The secondary LCD section will show "0.0°C".

CFM

°C

CAL

• Immerse the temperature

probe in the vessel with the ice and water and wait for a few minutes.

5352

0 °C

(32 °F)

• The secondary LCD will display "0.0 °C" with the "CAL" indicator.

• As soon as the reading is stable the "CFM" indicator will start blinking.

• Press the CFM key to confirm the calibration.

• Immerse the temperature probe in the vessel with hot water and wait for a few minutes.

• The secondary LCD will display "50.0 °C" with the "CAL" indicator.

• As soon as the reading is stable the "CFM" indicator will start blinking.

CAL

CFM

CAL

50 °C

(122 °F)

°C

CFM

PROCEDURE FOR pH 302

• Switch the pH302 on while pressing CAL. The "CAL" indicator will be lit. The secondary LCD section will show "0.0°C".

CAL

°C

CAL

• Immerse the tem-

perature probe in the vessel with the ice and water and wait for a few minutes.

• As soon as the reading is stable the "CFM" indica-

CFM

0 °C

(32 °F)

tor will start blinking.

• Press CFM to confirm the calibration.

°C

• Immerse the tem-

CFM/

perature probe in the vessel with hot water and wait for a few minutes.

50 °C

(122 °F)

CFM

• Press CFM to confirm the calibration.

• The temperature calibration is complete and the meter will return to the normal operating mode.

• The secondary LCD will display "50.0 °C" with the "CAL" indicator.

• As soon as the reading is stable the "CFM" indicator will start blinking.

5554

°C

CAL

CFM

CFM/

• Press CFM to confirm the calibration.

• The temperature calibration is complete and the meter will return to the normal operating mode.

LOGGING WITH pH301

This function permits the automatic logging of pH or mV or ION measurements together with the temperature without needing an operator and for a long period of time.

The lot number goes from 1 to 99 and then back to #1.

The maximum capacity per lot is 8000 samples.

Set the appropriate logging interval (see page 14) selectable between 1, 15, 30 seconds or 1, 5, 30, 60, 120, 180 minutes.

Select the appropriate measurement mode by pressing the pH or mV or ION key.

pH mV ION

Press LOG and then CAL to enter the logging mode.

LOG

CAL

Once in the logging mode, the interval cannot be changed.

Exit the logging mode

LOG

CAL

first (by pressing LOG and then CAL) before setting a new interval.

During logging, you can check some information about the logged data.

5756

Press LOG and the primary LCD will show the current lot number and the secondary LCD will display the current page number.

LOG

Press LOG again to display the current sample number (the number of values that have been taken in the current lot).

LOG

TO STOP LOGGING

To stop logging press

LOG

CAL

LOG and then CAL.

when this happens the LCD will show page "0", indicating the overwriting has happened.

Each time a new logging period starts, it automatically starts a new page.

When the samples collected for a single lot are more than the limit (8000 samples) the meter will automatically stop logging.

TO CLEAR LOGGED DATA

The entire logged data can be cleared by pressing LOG as soon as the meter is turned on (i.e. by pressing ON and LOG simultaneously).

LOG

CFM

BUF

The choice has to be confirmed

CFM

by pressing CFM.

Press LOG to display the next lot number.

LOG

Note: if OFF is pressed while

OFF

logging, the meter will stop the logging and then turn off.

MEMORY ORGANIZATION

The memory used for storing the logged data is divided into 16 pages. The capacity of each page is 500 samples. It starts to log from page 16 downwards until 1 and then 16 again, overwriting the previous data. However,

The next logging will start from page 16.

5958

PROGRAMMING FUNCTIONS

WITH pH302

There are 9 programs all together in the instrument. To select a particular program, press PGM followed by the program number on the numeric keyboard.

E.g. To select program 1

PGM

• press PGM

• press 1

By pressing PGM the secondary LCD will show "P" to confirm the programming mode.

By pressing 1, the secondary LCD will show "P1" to confirm the selected program.

At this stage, the secondary LCD shows "Px - y", where x refers to the program number you pressed and y refers to 1 ENTER or 2 ENTER, i.e.:

ENTER/

• choice #1 selected by pressing 1 followed by ENTER

ENTER/

• choice #2 selected by pressing 2 followed by ENTER.

Whenever a numeric value is entered, the entry appears on the primary display.

There will be a long beep after either 1+ ENTER or 2 +ENTER is pressed, when the entered value is either wrong or not acceptable by the particular program.

The 9 programs stored in the instrument are:

Program #0

To end the program function.

Program #1

To set the sample number, the time and the date (see page 60).

Program #2

To calibrate the meter using a nonstandard calibration buffer value (see page 64).

Program #3

To print the pH calibration data complete with date, time, pH offset and slope (see page66).

Program #4

To log and print the pH/mV/temperature values at the selected interval from the start to the finishing time. The printout interval can be selected from 1 minute to 24 hours. This program can be stopped by selecting any other PGM function (see page 67).

Program #5

To log and print the pH/mV/temperature values at a user-selectable interval from a given time up to a selectable pH or mV value. When this pH/mV value is exceeded, the program stops by printing the endpoint hour and minute. The printout interval can be selected from 1 minute to 24 hours. This program can also be stopped by selecting any other PGM function (see page 71).

Program #6

To set the upper and the lower pH or mV alarm limits. A beeper will sound whenever the measured value exceeds the limit. This program can only be terminated by pressing PGM + 0 (see page 75).

6160

Program #7

To select a different printing language (6 languages are available) (see page 78).

Program #8

To print the ion concentration in M for the measured pH value (see page 79).

Program #9

To set the baud rate and the STRINGII code of Escape character for the RS232 (see page 79).

To stop or exit any program:

• press PGM

• press 0

PGM

PROGRAM 1 1 set sample no. 2 set time 3 set date

• To set the sample number (choice #1), press 1 followed by ENTER. "P1.1" will be displayed on the secondary LCD with "0" on the primary one.

ENTER/

Enter the desired number (choose any number from 1 to 999) followed by ENTER. E.g. sample number 200.

Note: the instrument must be in pH mode for

program #2, #3 and #8. Otherwise a long beep will sound.

PROGRAM #1 (pH 302)

This program allows you to set sample number, time and date.

To enter program #1:

• Push the PGM key and then 1.

PGM

The printer will then define the three functions:

1 is the sample number, 2 is time, 3 is the date.

ENTER/

The printer will print the value.

PROGRAM 1 1 set sample no. 2 set time 3 set date

Sample number 200

Samples after 999 will be reset to zero and the sample number will automatically advance from 0 to 999 in increment of 1 each time the instrument logs and/or prints a reading.

6362

• "P1." will be displayed on the secondary LCD.

• To set the time press 2 followed by ENTER. "P1.2" will be displayed on the secondary LCD with "0" on the primary one.

ENTER/

The time value (choice #2) can be set for a 24 hour clock. Enter the desired number also using the decimal point followed by ENTER.

E.g. 2 P.M. equals 14.00. Press "14.00" followed by ENTER.

ENTER/

The printer will print the time.

PROGRAM 1 1 set sample no. 2 set time 3 set date

Sample number

200

• To set the date press 3 followed by ENTER. "P1.3" will be displayed on the secondary LCD with "0" on the primary one.

ENTER/

When setting the date (choice #3), enter the month first. Separate month and day by a decimal point.

E.g. February 4th is entered as "2.04" followed by ENTER.

ENTER/

The printer will print the date.

PROGRAM 1 1 set sample no. 2 set time 3 set date

Sample number

200

Time

14.00

Date

2.04

Time

14.00

• "P1." will be displayed on the secondary LCD.

• Press PGM and then 0 to exit from the program mode.

PGM

6564

PROGRAM #2 (pH 302)

This program lets you calibrate with buffer values other than 4.01, 7.01 and 10.01 pH which are pre-programmed into memory.

• To enter program #2, press PGM and then 2.

PGM

• Check the appropriate value for the buffer at the measured buffer temperature (see page39).

• After about 30 seconds enter the 1st buffer value at the working temperature followed by ENTER. E.g. 6.92 (at 10°C).

ENTER/

The printer will then define the two functions:

1 is the first buffer, 2 is the second buffer.

PROGRAM 2 1 enter 1st buf fer 2 enter 2nd buf fer

• To meter will default to the 1

buffer value entry displaying "P2.1" on the secondary LCD with "0" on the primary one.

The buffers can be anywhere between 0 and 14 pH.

Example:

To calibrate with NBS buffers 6.86 pH and

9.18 pH at a temperature of 10°C. The corresponding pH values at this tem-

perature are 6.92 and 9.33 respectively.

• Immerse the pH electrode and the temperature probe into the 1st buffer (e.g. pH6.86).

The printer will print the 1st buffer value.

PROGRAM 2 1 enter 1st buf fer 2 enter 2nd buf fer

1st buffer

6.92

• The secondary display will show "P2."

• To set the second buffer press 2 followed by ENTER. "P2.2" will be displayed on the secondary LCD with "0" on the primary one.

ENTER/

• Rinse the electrode and immerse it in the 2

buffer (e.g. pH 9.18).

• Check the appropriate value for the buffer at the measured buffer temperature (see page39).

6766

• After about 30 seconds enter the 2nd buffer value at the working temperature and then press ENTER. E.g. 9.33 (at 10°C).

. 3

ENTER/

The printer will print the 2nd buffer value.

PROGRAM 2 1 enter 1st buf fer 2 enter 2nd buf fer

1st buffer

6.92

2nd buffer

9.33

• Press PGM to quit this pro-

PGM

gram.

• The calibration is now complete.

PROGRAM #3 (pH 302)

This program prints the date, time, the offset and slope characteristics of the pH electrode.

Note: the offset and the slope characteristics

of the electrode are referred to the last

performed pH calibration. No programming is required. Simply press PGM and 3.

PGM

The printer will print the pH calibration data.

PROGRAM 3 DATE 2/04 TIME 14:04 OFFSET mV 0.16 SLOPE 95.3%

MM/DD HH:MM in mV in %

The program function ends. Changes in an electrode's performance can

be determined from this information. The offset pH value should be between ±30mV. For values between ±30 and ±60 mV change

the reference electrolyte and repeat the calibration procedure. For values higher than +60 mV or lower than -60 mV the electrode is no longer reliable. See the electrode maintenance section on page 84.

The slope characteristic is in percentage of the theoretical value of 58.16 mV per pH unit at 20°C.

PROGRAM #4 (pH 302)

This program logs and prints pH/mV and temperature values at a preset interval between 1 minute and 24 hours.

To enter the program press PGM and 4.

PGM

The printout defines functions 1, 2 and 3:

1 is a start time, 2 is the time interval, 3 is the finish time.

6968

PROGRAM 4

1 enter start time 2 enter time int erval 3 enter end time

• To set the start time (choice #1), press 1 followed by ENTER. "P4.1" will be displayed on the secondary LCD with "0" on the primary one.

ENTER/

• Enter the desired number followed by ENTER. E.g. Starting time 10:20.

ENTER/

• "P4." will be displayed on the secondary LCD.

• To set the time interval (choice #2), press 2 followed by ENTER.

"P4.2" will be displayed on the secondary LCD with "0" on the primary one.

ENTER/

The minimum time interval is 1 minute. The interval is expressed in HH:MM.

E.g printing interval of 5 minutes.

. 0

ENTER/

The printer will print the value.

Hours and minutes must be separated by a decimal point.

The printer will print the value.

PROGRAM 4

1 enter start time 2 enter time int erval 3 enter end time

start time

10:20

PROGRAM 4

1 enter start time 2 enter time int erval 3 enter end time

start time

10:20

time interval

00:05

• "P4." will be displayed on the secondary LCD.

7170

• To set the finishing time (choice #3), press 3 followed by ENTER.

"P4.3" will be displayed on the secondary LCD with "0" on the primary one.

ENTER/

DATE 2/04 TIME 10.20 SAMPLE 202 °C 20.3 pH 6.38

DATE 2/04 TIME 10.25 SAMPLE 203 °C 20.4 pH 6.39

• Enter the desired number followed by ENTER. E.g. Finishing time 11:30.

Hours and minutes must be separated by a decimal point.

. 3

ENTER/

The printer will print the value.

PROGRAM 4

1 enter start time 2 enter time int erval 3 enter end time

start time

10:20

time interval

00:05

finishing time

11:30

DATE 2/04 TIME 10.30 SAMPLE 204 °C 20.3 pH 6.38

The "LOG" indicator is displayed when the meter starts to log.

LOG

When the instrument is in this mode and

PGM

you want to stop before the end time, press PGM plus 0.

PROGRAM #5 (pH 302)

This is the same as program #4 except that function "3" allows you to select an interrupt value for pH/mV instead of end time.

When this interrupt value is exceeded, the program prints the hour and minute of the endpoint.

To enter the program press PGM plus 5.

PGM

7372

The printout defines functions 1, 2 and 3:

1 is a start time, 2 is the time interval, 3 is the interrupt value of pH/mV.

PROGRAM 5 1 enter start

time 2 enter time in terval 3 enter end pH/mV value

• "P5." will be displayed on the secondary LCD.

• To set the time interval (choice #2), press 2 followed by ENTER.

"P5.2" will be displayed on the secondary LCD with "0" on the primary one.

ENTER/

• To set the start time (choice #1), press 1 followed by ENTER. "P5.1" will be displayed on the secondary LCD with "0" on the primary one.

ENTER/

• Enter the desired number followed by ENTER. E.g. Starting time 10:30.

Hours and minutes must be separated by a decimal point.

ENTER/

The printer will print the value.

PROGRAM 5 1 enter start

time 2 enter time in terval 3 enter end pH/mV value

Start time

10.30

The minimum time interval is 1 minute. The interval is expressed in HH:MM.

E.g printing interval of 1 hour and 30 minutes.

ENTER/

The printer will print the value.

PROGRAM 5

1 enter start time 2 enter time in terval 3 enter end pH/mV value

Start time

10.30

Time Interval

1.30

• "P5." will be displayed on the secondary LCD.

7574

• To set the end pH/mV value (choice #3), press 3 followed by ENTER. "P5.3" will be displayed on the secondary LCD with "0" on the primary one.

ENTER/

• Enter the desired number followed by ENTER. E.g. pH 3.50 (supposed that the meter is in pH mode).

Note: the value will automatically be pH or

mV depending on the selected measurement range.

ENTER/

DATE 2/04 TIME 10.30 SAMPLE 210 °C 20.3 pH 4.50

DATE 2/04 TIME 12.00 SAMPLE 211 °C 20.4 pH 4.01

DATE 2/04 TIME 12.25 SAMPLE 212 °C 20.3 pH 3.50

The "LOG" indicator is displayed when the meter starts to log.

When the instrument is in this mode and it is desired

PGM

to stop before the end time, press PGM plus 0.

LOG

The printer will print the value.

PROGRAM 5

1 enter start time 2 enter time in terval 3 enter end pH/mV value

Start time

10.30

Time Interval

1.30

End point

3.50

PROGRAM #6 (pH 302)

This program allows you to set upper and lower limits for pH/mV values.

A beeper will sound whenever the measured value exceeds the limit.

To enter the program press PGM plus 6.

PGM

The printout defines functions 1, 2 and 3:

1 is the lower limit, 2 is the upper limit, 3 clears the alarm.

7776

PROGRAM 6 1 set lower limit 2 set upper limit 3 clear alarm

• To set the lower limit (choice #1), press 1 followed by ENTER. "P6.1" will be displayed on the secondary LCD with "0" on the primary one.

• "P6." will be displayed on the secondary LCD.

• To set the upper limit (choice #2), press 2 followed by ENTER. "P6.2" will be displayed on the secondary LCD with "0" on the primary one.

ENTER/

• Enter the desired number followed by ENTER. E.g. lower limit pH 6.50 (supposed that the meter is in pH mode).

Note: the value will automatically be pH or

mV depending on the selected measurement range.

ENTER/

The printer will print the value.

PROGRAM 6

1 set lower limit

2 set upper limit

• Enter the desired number followed by ENTER. E.g. upper limit pH 7.50.

ENTER/

The printer will print the value.

PROGRAM 6

1 set lower limit

2 set upper limit

3 clear alarm

lower limit

6.50

upper limit

7.50

3 clear alarm

To stop the beeper from sound-

ing when the limit is exceeded,

lower limit

6.50

press 3.

7978

PGM

To definitely exit the program press PGM plus 0.

PROGRAM #7 (pH 302)

This program allows the user to select a different working language.

Press PGM and then 7.

PGM

The printer will print out a list of languages available.

PROGRAM 7

1. English

2. Deutsch

3. Français

4. Español

5. Italiano

6. Svenska

Press PRINT and the printout will be in French.

DATE (M/J) 2/04 HEURE 10.20 ECHANTILLON 215 °C 20.0 pH 6.52

PROGRAM #8 (pH 302)

This program prints out the ion concentration in M for the pH value measured.

To activate the program, press PGM and then 8.

PGM

PROGRAM 8

3.88 pH--

0.132mM H+

The default working language is English. To choose a language, key in the corre-

sponding number then press ENTER. E.g. To select French press 3 and ENTER.

PROGRAM 7

ENTER/

1. English

2. Deutsch

3. Français

4. Español

5. Italiano

6. Svenska

Français

Note: Make sure the meter is in pH mode,

otherwise a long beep will be heard.

PROGRAM #9 (pH 302)

This program is to set the baud rate and the STRINGII code of Escape character.

To enter the program press PGM plus 9.

PGM

8180

The printout defines functions 1 and 2:

1 is the baud rate, 2 to set the STRINGII code of Escape char-

acter

PROGRAM 9 1 enter baud rate 2 enter STRINGII code

of escape character

• "P9." will be displayed on the secondary LCD.

• To set the command prefix (choice #2), press 2 followed by ENTER. "P9.2" will be displayed on the secondary LCD with "0" on the primary one.

ENTER/

• To set the baud rate (choice #1), press 1 followed by ENTER. "P9.1" will be displayed on the secondary LCD with "0" on the primary one.

ENTER/

• Enter the desired number followed by ENTER. E.g. 4800 as baud rate.

ENTER/

The printer will print the value.

PROGRAM 9

1 enter baud rate 2 enter STRINGII code of escape character

baud rate

4800

• Enter the desired number followed by ENTER. E.g. STRINGII code 25.

ENTER/

The printer will print the value.

PROGRAM 9

1 enter baud rate

2 enter STRINGII code of escape character

baud rate

4800

STRINGII code

Press PGM to quit this program.

PGM

8382

INTERFACE WITH PC

TROUBLESHOOTING GUIDE

Data transmission from the instrument to the PC is now much easier with the new HI 92000 Windows® compatible application software offered by Hanna Instruments.

User friendly, HI 92000 offers a variety of features and has an on-line help feature to support you throughout all situations.

HI92000 allows you to use the powerful means of the most diffused spread sheet programs (e.g. Excel©, Lotus 1-2-3©). Simply run your favorite spread sheet and open the file downloaded by HI92000. It is then possible to make any elaboration available with your software (e.g. graphics, statistical analysis).

To install HI 92000 you need a 3.5" drive and a few minutes to follow the instructions conveniently printed on the disk label.

Contact your Hanna Dealer to request a copy. To connect your pH meter to the PC use

HI 920010, available through your Hanna Dealer. Make sure that your meter is switched off and plug the connectors, one into the meter RS232 connector, the other into the serial port of your PC.

Note: Cables which are different from the

HI920010 may use a different con-

figuration. In which case any communication between the meter and the PC is not possible.

Excel© Copyright of "Microsoft Co." Lotus 1-2-3© Copyright of "Lotus Co." Windows® and Windows Terminal® are registered Trademark of "Microsoft Co."

Symptoms Problem Solution

The meter does not work with the temperature probe The meter fails to calibrate or gives faulty readings

The meter is slow in responding or gives faulty readouts

The meter does not accept the 2nd buffer solution for calibration

The reading drifts

Display shows:

°C

Display shows:

Rel mV

Display shows: "WRONG

and/or "WRONG "

Display shows: "WRONG

and/or "WRONG "

BUF

Defective ATC probe

Defective pH electrode

The electrode is not working or the reference junction is clogged

Defective pH electrode

Out of range-pH scale

Out of range-°C scale

Out of range-mV scale or ION for

pH301

Erroneous buffer solution used for offset cal.

Defective electrode

Erroneous buffer solution used for slope cal.

Defective electrode

8584

Replace the probe

Replace the electrode

Leave the electrode in a storage solution after cleaning the junction. If problem persists, replace the electrode

Follow the cleaning procedure. If this doesn't work replace the electrode

Replace the electrode

a) Check the calibration b) Assure the pH sample

is in the range 0 to 14

c) Check the level of

electrolyte and the state of the electrode itself

Make sure the °C is within 0-100° and temperature probe is plugged

Electrode not connected

Make sure the buffer solution used corresponds to the selected buffer value and replace if necessary

Replace the electrode

Use fresh buffer solution

Replace the electrode

ELECTRODE CONDITIONING

AND MAINTENANCE

Reference Filling Hole

Fill Hole Screw

Sensitive Wire

Reference Wire

Reference Junction

Glass Bulb

Plastic Body

pH Electrode

Reference Wire

Reference Junction

Platinum or Gold tip

Plastic Body

ORP Electrode

Glass Body

pH Electrode

Reference

Wire

Glass Body

ORP Electrode

Reference Filling Hole

Reference

Wire

Sensitive

Wire

Reference

Junction

Glass

Bulb

Reference

Junction

Platinum or

Gold tip

ing down" the electrode as you would do with a glass thermometer.

If the bulb and/or junction are dry, soak the electrode in HI70300 or HI 80300 Storage Solution for at least one hour.

For refillable electrodes:

If the filling solution (electrolyte) is more than 1 cm (½") below the fill hole, add HI7082

or HI8082 3,5M KCl Electrolyte Solution for double junction or HI7071 or HI8071 3,5M KCl+AgCl Electrolyte Solution for

single junction electrodes. For a faster response, unscrew the fill hole

screw during measurements.

For AmpHel® electrodes:

If the electrode does not respond to pH changes, the battery is run down and the electrode should be replaced.

MEASUREMENT

Rinse the electrode tip with distilled water. Immerse the tip (4 cm /1½") in the sample

and stir gently for at least 30 seconds. For a faster response and to avoid cross

contamination of the samples, rinse the electrode tip with a few drops of the solution to be tested, before taking measurements.

PREPARATION

Remove the protective cap. DO NOT BE ALARMED IF ANY SALT DE-

POSITS ARE PRESENT. This is normal with electrodes and they will

disappear when rinsed with water. During transport tiny bubbles of air may have

formed inside the glass bulb. The electrode cannot function properly under these conditions. The bubbles can be removed by "shak-

STORAGE

To minimize clogging and assure a quick response time, the glass bulb and the junction should be kept moist and not allowed to dry out.

Replace the solution in the protective cap with a few drops of HI70300 or HI80300

Storage Solution or, in its absence, Filling Solution (HI7071 or HI8071 for single junc-

tion or HI7082 or HI8082 for double junction

AmpHel® is registered Trademark of "Hanna Instruments"

8786

electrodes). Follow the Preparation Procedure above before taking measurements.

Note: NEVER STORE THE ELECTRODE IN

DISTILLED WATER OR DRY.

PERIODIC MAINTENANCE

Inspect the electrode and the cable. The cable used for the connection to the meter must be intact and there must be no points of broken insulation on the cable or cracks on the electrode stem or bulb. Connectors must be perfectly clean and dry.

If any scratches or cracks are present, replace the electrode.

Rinse off any salt deposits with water.

For refillable electrodes:

Refill the reference chamber with fresh electrolyte (HI7071 or HI8071 for single junction or HI7082 or HI8082 for double junction electrodes). Allow the electrode to stand upright for 1 hour.

Follow the Storage Procedure above.

CLEANING PROCEDURE

General Soak in Hanna HI7061 or

HI 8061 General Cleaning Solution for approximately 1 hour.

Removal of film, dirt or deposits on the membrane/junction:

Protein

Inorganic

Oil/grease

Soak in Hanna HI7073 or

HI8073 Protein Cleaning Solution for 15 minutes.

Soak in Hanna HI7074 or HI8074 Inorganic Cleaning Solution for 15 minutes.

Rinse with Hanna HI7077 or HI 8077 Oil and Fat Cleaning Solution.

IMPORTANT: After performing any of the

cleaning procedures rinse the electrode thoroughly with distilled water, refill the reference chamber with fresh electrolyte, (not necessary for GEL filled electrodes) and soak the electrode in HI 70300 or HI80300 Storage Solution for at least 1 hour before taking measurements.

TROUBLESHOOTING

Evaluate your electrode performance based on the following.

• Noise (Readings fluctuate up and down) could be due to:

- Clogged/Dirty Junction: Refer to the

Cleaning Procedure above.

- Loss of shielding due to low electrolyte

level (in refillable electrodes only): refill with fresh HI 7071 or HI 8071 for single junction or HI7082 or HI8082 for double junction electrodes.

• Dry Membrane/Junction: Soak in Stor- age Solution HI70300 or HI80300 for at

least 1 hour.

• Drifting: Soak the electrode tip in warm Hanna Solution HI7082 or HI8082 for one hour and rinse tip with distilled water. Refill with fresh HI7071 or HI8071 for single junction electrodes and HI7082 or HI8082 for double junction electrodes.

• Low Slope: Refer to the cleaning proce- dure above.

• No Slope: Check the electrode for cracks in glass stem or bulb and replace the electrode.

• Slow Response/Excessive Drift: Soak the tip in Hanna Solution HI7061 or HI8061 for 30 minutes, rinse thoroughly in distilled water and then follow the Cleaning Procedure above.

8988

TEMPERATURE-RESISTANCE CORRE-

0+10+20+30+40+50+60+70+80+90

LATION FOR HANNA pH SENSITIVE

GLASS

The resistance of glass electrodes partially depends on the temperature. The lower the temperature, the higher the resistance. It takes longer for the reading to stabilize if the resistance is higher. In addition, the response time will suffer to a greater degree at tem-

Ω

2x10

-10

1x10

-10

2x10

1x10

-10

2x10

-10

1x10

-10

-20-2

peratures below 10°C. Since the resistance of the pH electrode is in

the range of 200 Mohm, the current across the membrane is in the pico Ampere range. Large currents can disturb the calibration of the electrode for hours.

Typical Electrode Life Ambient Temperature 1- 3 years 90 °C Less than 4 months 120°C Less than 1 month

High concentrations of sodium ions interfere with readings in alkaline solutions; the pH at which the interference starts to be significant depends upon the composition of the glass. This interference is the alkaline error and causes the pH to be underestimated. Hanna's glass formulations have the indicated characteristics.

Alkaline Error

Sodium Ion Correction for the Glass

at 20-25°C

Concentration pH Error

0.1 Mol L-1 Na

1.0 Mol L-1 Na

13.00

13.50

14.00

12.50

13.00

13.50

14.00

0.10

0.14

0.20

0.10

0.18

0.29

0.40

For these reasons high humidity environ-

ments, short circuits and static discharges

are detrimental for a stable pH reading.

The life of a pH electrode also depends on temperature. If constantly used at high temperatures, electrode life is drastically reduced.

9190

ADDITIONAL INFORMATION ABOUT

INTERFACE WITH PC

(for technical personnel only)

If you are not using Hanna Instruments HI92000 application software, please find here below some additional information to help your connection to the PC.

SETTING THE BAUD RATE AND THE COMMAND PREFIX

The transmission speed (baud rate) of your pH meter and of the external device must be the same.

Procedure for pH 300:

To set the baud rate of the meter press COMM, the primary LCD shows the current

baud rate.

COMM

Note: the Command Prefix has not to be

changed using HI92000 Hanna Software.

°C

Select a different command prefix (between 0 to 47 in decimal) by pressing UP and DOWN.

Press CFM to confirm the set-

CFM

ting.

Procedure for pH 301:

To set the baud rate of the meter press COMM, the primary LCD shows the current

baud rate.

COMM

The following baud rate can be selected

°C

through UP and DOWN:

150, 300, 600, 1200 (factory setting) and

2400. Press CFM to confirm the setting and the

primary LCD shows the current command

prefix: 16 is the factory setting.

CFM

The following baud rate

°C

can be selected through UP and DOWN:

150, 300, 600, 1200 (factory setting), 2400, 4800, 9600.

Press COMM to confirm the setting and the primary LCD shows the current command

prefix: 16 is the factory setting.

COMM

Note: the Command Prefix has not to be

changed using HI92000 Hanna Software.

9392

°C

Select a different command prefix (between 0 to 47 in decimal) by pressing UP and DOWN.

COMM

Press COMM to confirm the setting.

Procedure for pH 302:

See program #9 (page 79).

SENDING COMMANDS FROM PC

With terminal programs such as, for example, Telix®, Windows Terminal®, it is possible to remotely control your pH meter. Use HI920010 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:

<DLE> <

command>

<CR>

This line makes the computer send a Data Link Escape character, 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'. E.g. the line '^PPHR^M' sets the range to pH.

Windows Terminal® are registered Trademark of "Microsoft Co." TELIX® is registered Trademark of "Deltacomm"

For pH 300: Commands not requiring an answer from

the pH meter:

PHR sets the range to pH MVR sets the range to mV CAL is equivalent to pressing the CAL key CON is equivalent to pressing the CFM key UPC is equivalent to pressing the ↑°C key DWC is equivalent to pressing the ↓°C key MEM is equivalent to pressing the MEM key MRR is equivalent to pressing the MR key COM is equivalent to pressing the COMM key

Commands requiring an answer:

pH? Causes the meter to send the pH value.

If the reading is out of range "Err 1" is sent.

MV? Causes the meter to send the mV value.

If the reading is out of range "Err 2" is sent.

TM? Causes the meter to send the tempera-

ture value. If the reading is out of range "Err 3" is sent.

FA? Requests the meter to send the calibra-

tion factor of pH. The order of data is as follows:

1) Month, day and Year (when the calibration was done) E.g. "123195" for 31st of Dec. 95

2) Buffer used when the offset was done E.g. "0701" for 7.01 pH

3) Offset in mV E.g. "_00504" for 50.4 mV

"-00504" for 50.4 mV

4) Buffer used when slope was done E.g. "0401" for 4.01 pH

5) Slope in mV E.g. "000592" for 59.2 mV

6) Temperature E.g. "_01199" for 119.9°C

"-00099" for -9.9°C

BAR Requests the meter to send the RS232

baud rate

9594

PRE Requests the meter to send the RS232

command prefix

Commands setting parameters:

/BR To set the RS232 baud rate. E.g.

send "/BR0" to set the meter to baud rate of 150 send "/BR1" to set the meter to baud rate of 300 send "/BR2" to set the meter to baud rate of 600 send "/BR3" to set the meter to baud rate of 1200 send "/BR4" to set the meter to baud rate of 2400

/PF To set the RS232 command prefix. E.g.

send "/PF05" to set the command prefix to

05.

For pH 301: Commands not requiring an answer from

the pH meter:

PHR sets the range to pH PPM sets the range to ppm MVR sets the range to mV OFF is equivalent to pressing the OFF key

Commands requiring an answer:

pH? Causes the meter to send the pH value.

If the reading is out of range "Err 1" is sent.

pM? Causes the meter to send the ppm value.

If the reading is out of range "Err 5" is sent.

MV? Causes the meter to send the mV value.

If the reading is out of range "Err 2" is sent.

TM? Causes the meter to send the tempera-

ture value. If the reading is out of range "Err 3" is sent.

The meter will send "Err6" if in a different measurement range.

FA? Requests the meter to send the calibra-

tion factor of pH. The order of data is as follows:

1) Month, day and Year (when the calibration was done) E.g. "123195" for 31st of Dec. 95

2) Time (when the calibration was done) E.g. "1259" for 12:59 hh/mm

3) Buffer used when the offset was done E.g. "0701" for 7.01 pH

4) Offset in mV E.g. "_00504" for 50.4 mV

"-00504" for 50.4 mV

5) Buffer used when 1st slope was done E.g. "0401" for 4.01 pH

6) 1st slope in mV E.g. "000592" for 59.2 mV

7) Buffer used when 2nd slope was done E.g. "1001" for 10.01 pH

8) 2nd slope in mV E.g. "000569" for 56.9 mV

9) Temperature E.g. "_01105" for 110.5°C

"-00099" for -9.9°C

FI? Requests the meter to send the calibra-

tion factor of ION. The order of data is as follows:

1) Month, day and Year (when the calibration was done) E.g. "060395" for 6th of March 95

2) Time (when the calibration was done) E.g. "1651" for 16:51 hh/mm

2) Buffer used when the offset was done E.g. "000100" for 10.0ppm

3) Offset in mV E.g. "000234" for 23.4 mV

4) Buffer used when slope was done E.g. "010000" for 1000 mV

5) mV measured when the slope was done E.g. "012345" for 1234.5 mV

6) Temperature E.g. "_00105" for 10.5°C

"-00099" for -9.9°C

DA? Requests the meter to send the date

E.g. "022896" for 28th Feb. 96

9796

TI? Requests the meter to send the time

E.g. "233001"

for 23:30 hr, 1 sec. as interval "233002" for 23:30 hr, 15 sec. as interval "233003" for 23:30 hr, 30 sec. as interval "233004" for 23:30 hr, 1 min. as interval "233005" for 23:30 hr, 5 min. as interval "233006" for 23:30 hr, 30 min. as interval "233007" for 23:30 hr, 60 min. as interval "233008" for 23:30 hr, 120 min. as interval "233009" for 23:30 hr, 180 min. as interval

BAR Requests the meter to send the RS232

baud rate

PRE Requests the meter to send the RS232

command prefix

Commands setting parameters:

/BR To set the RS232 baud rate. E.g.

/PF To set the RS232 command prefix. E.g.

send "/PF05" to set the command prefix to

05.

For pH 302: Commands not requiring an answer from

the pH meter:

PHR sets the range to pH MVR sets the range to mV CAL is equivalent to pressing the CAL key CFM is equivalent to pressing the CFM key PRT is equivalent to pressing the PRINT key PGM is equivalent to pressing the PGM key CLR is equivalent to pressing the CLEAR key OFF is equivalent to pressing the OFF key

Commands requiring an answer:

pH? Causes the meter to send the pH value.

If the reading is out of range "Err 1" is sent.

MV? Causes the meter to send the mV value.

If the reading is out of range "Err 2" is sent.

TM? Causes the meter to send the tempera-

ture value. If the reading is out of range "Err 3" is sent.

The meter will send "Err6" if in a different measurement range.

FA? Requests the meter to send the calibra-

tion factor of pH. The order of data is as follows:

1) Month, day and Year (when the calibration was done) E.g. "123195" for 31st of Dec. 95

2) Buffer used when the offset was done E.g. "0701" for 7.01 pH

3) Offset in mV E.g. "_00504" for 50.4 mV

"-00504" for 50.4 mV

4) Buffer used when slope was done E.g. "0401" for 4.01 pH

5) Slope in mV E.g. "000592" for 59.2 mV

6) Temperature E.g. "_01199" for 119.9°C

"-00099" for -9.9°C

9998

DA? Requests the meter to send the date

status (MMDD)

TI? Requests the meter to send the time

status (HHMM)

Commands setting parameters:

/BR To set the RS232 baud rate. E.g.

/PF To set the RS232 command prefix.

E.g. send "/PF05" to set the command prefix to 05.

For all models

Note: <ACK> will be sent by the meter if the

command received is accepted, other-

wise it will send <CAN>. <ACK> equals to ASCII code 06 and <CAN> equals to ASCII code 24.

These commands may be sent with either capital or small letters. Invalid commands will be ignored. The characters sent by the pH meter are always capital letters.

ACCESSORIES

pH CALIBRATION SOLUTIONS

HI774P pH 4.01 & 7.01 Buffer Solution,

30mL each

HI7004M pH 4.01 Buffer Solution, 230 mL HI7004L pH 4.01 Buffer Solution, 460 mL HI7006M pH 6.86 Buffer Solution, 230 mL HI7006L pH 6.86 Buffer Solution, 460 mL HI777P pH 7.01 Buffer Sol. 2x30 mL HI7007M pH 7.01 Buffer Solution, 230 mL HI7007L pH 7.01 Buffer Solution, 460 mL HI7009M pH 9.18 Buffer Solution, 230 mL HI7009L pH 9.18 Buffer Solution, 460 mL HI7710P pH 7.01 & 10.01 Buffer Solution,

30 mL each

HI7010M pH 10.01 Buffer Solution, 230 mL HI7010L pH 10.01 Buffer Sol., 460 mL

pH CALIBRATION SOLUTIONS IN FDA APPROVED BOTTLE

HI8004L pH 4.01 Buffer Solution, 460 mL HI8006L pH 6.86 Buffer Solution, 460 mL HI8007L pH 7.01 Buffer Solution, 460 mL HI8009L pH 9.18 Buffer Solution, 460 mL HI8010L pH 1 0.0 1 B uf fe r S ol ut io n, 460 mL

ELECTRODE STORAGE SOLUTIONS

HI70300M Storage Solution, 230 mL HI70300L Storage Solution, 460 mL

ELECTRODE STORAGE SOLUTIONS IN FDA APPROVED BOTTLE

HI80300M Storage Solution, 230 mL HI80300L Storage Solution, 460 mL

ELECTRODE CLEANING SOLUTIONS

HI7061M General Cleaning Sol., 230 mL

101100

HI7061L General Cleaning Sol., 460 mL HI7073M Protein Cleaning Sol., 230 mL HI7073L Protein Cleaning Sol., 460 mL HI7074M Inorganic Cleaning Sol., 230 mL HI7074L Inorganic Cleaning Sol., 460 mL HI7077M Oil & Fat Cleaning Sol., 230 mL HI7077L Oil & Fat Cleaning Sol.,460 mL

pH & ORP ELECTRODES

B = BNC CONNECTION PLUG + 1 m (3.3’) CABLE

S = SCREW-TYPE CONNECTOR

ELECTRODE CLEANING SOLUTIONS IN FDA APPROVED BOTTLE

HI8061M General Cleaning Solution, 230 mL HI8061L General Cleaning Solution, 460 mL HI8073M Protein Cleaning Solution, 230 mL HI8073L Protein Cleaning Solution, 230 mL HI8077M Oil & Fat Cleaning Solution, 230mL HI8077L Oil & Fat Cleaning Solution, 460 mL

REFILLING ELECTROLYTE SOLUTIONS

HI7071 3.5M KCl + AgCl Electrolyte,

4x50 mL, for single junction electrodes

HI7072 1M KNO3 Electrolyte, 4x50 mL HI7082 3.5M KCl Electrolyte, 4x50 mL,

for double junction electrodes

REFILLING ELECTROLYTE SOLUTIONS IN FDA APPROVED BOTTLE

HI8071 3.5M KCl + AgCl Electrolyte,

4x50 mL, for single junction electrodes

HI8072 1M KNO3 Electrolyte, 4x50 mL HI8082 3.5M KCl Electrolyte, 4x50 mL,

for double junction electrodes

ORP PRETREATMENT SOLUTIONS

HI7091M Reducing Pretreat. Sol., 230 mL HI7091L Reducing Pretreat. Sol., 460 mL HI7092M Oxidizing Pretreat. Sol., 230 mL HI7092L Oxidizing Pretreat. Sol., 460 mL

HI1043B / HI1040S

Glass-body, double junction, refillable, combination pH electrode. Use: strong acid/alkali.

12 mm

0.5"

HI 1043

"S" VERSION

9.5mm DIA

120 mm

4.7"

0.37"

HI1053B / HI1050S

Glass-body, triple ceramic, conic shape, refillable, co mbination pH electrode. Use: emulsions.

12 mm

0.5"

HI 1053

"S" VERSION

120 mm

4.7"

HI1083B

Glass-body, micro, Viscolene, nonrefillable, combination pH electrode. Use: biotechnology, micro titration.

HI 1083

12 mm

0.5"

5 mm

0.2"

120 mm

3 mm

0.12"

3.0 mm DIA

0.12"

HI1131B / HI1111S

Glass-body, single junction, refillable, combination pH electrode. Use: general purpose.

12 mm

0.5"

HI 1131

"S" VERSION

9.5mm DIA

120 mm

4.7"

0.37"

103102

HI1330B / HI1310S

Glass-body, semimicro, single junction, refillable, combination pH electrode. Use: laboratory.

HI 1330

"S" VERSION

120 mm

4.7"

5mm DIA

0.2"

5mm

0.2"

HI1331B / HI1311S

Glass-body, semimicro, single junction, refillable, combination pH electrode. Use: flasks.

HI 1331

"S" VERSION

8 mm

0.3"

7.5mm DIA

210 mm

8.25"

0.29"

HI1230B / HI1210S

Plastic-body (Ultem®), double junction, gel-filled, combination pH electrode. Use: general purpose.

12 mm

0.5"

HI 1230

120 mm

4.7"

HI2031B / HI2020S

Glass-body, semimicro, conic, refillable, combination pH electrode. Use: semisolid products.

6 mm

0.25"

HI 2031

75 mm

2.95"

HI1332B / HI1312S

Plastic-body (Ultem®), double junction, refillable, combination pH electrode. Use: general purpose.

12 mm

0.5"

HI 1332

"S" VERSION

120 mm

4.7"

FC100B

Plastic-body (Kynar®), double junction, refillable, combination pH electrode. Use: general purpose for food industry.

12 mm

0.5"

FC 100

120 mm

4.7"

FC200B / FC200S Plastic-body (Kynar®), single junction, conic, Viscolene, refillable, combination pH electrode. Use: meat & cheese.

6 mm

0.25"

FC 200

75 mm

2.95"

FC210B

Glass-body, double junction, conic, Viscolene, combination pH electrode. Use: milk, yogurt.

12 mm

0.5"

FC 210

120 mm

4.7"

FC220B

Glass-body, single junction, refillable, combination pH electrode. Use: food & wine process- ing.

12 mm

0.5"

FC 220

9.5mm DIA

120 mm

4.7"

0.37"

Ultem® is registered Trademark of "General Electrics Co."

Kynar® is registered Trademark of "Pennwalt Corp."

105104

120 mm

4.7"

12 mm

0.5"

HI 4430

"S" VERSION

FC911B

Plastic-body (Kynar®), double junction, refillable with built-in amplifier, combination pH electrode. Use: very high humidity.

12 mm

0.5"

FC 911

110 mm

4.3"

HI1413B / HI1410S

Glass-body, single junction, flat tip, Viscolene, combination pH electrode. Use: surface mea- surement.

12 mm

0.5"

HI 1413

110 mm

4.3"

Half-cell electrodes:

HI2110B

Glass-body, single half-cell pH electrode. Use: general purpose.

12 mm

0.5"

HI 2110

9.5mm DIA

120 mm

0.37"

HI5311

Glass-body, Ag/AgCl reference half-cell electrode, double junction, refillable with 4mm plug with 1m (3.3') cable. Use: general purpose with wide temperature range.

12 mm

0.5"

HI5412

Glass-body, single Calomel reference half-cell electrode, refillable with 4mm plug with 1m (3.3') cable. Use: general purpose with constant temperature range.

12 mm

0.5"

HI 5412

120 mm

4.7"

ORP electrodes:

HI3131B / HI3111S

Glass-body, refillable, combination platinum ORP electrode. Use: titration.

12 mm

0.5"

HI 3131

150 mm

"S" VERSION

5.9"

HI3230B / HI3210S

Plastic-body (Ultem®), gel-filled, combination platinum ORP electrode. Use: general purpose.

12 mm

0.5"

HI 3230

120 mm

"S" VERSION

4.7"

HI4430B / HI4410S

Plastic-body (Ultem®), gel-filled, combination gold ORP electrode. Use: general purpose.

HI 5311

120 mm

4.7"

Kynar® is registered Trademark of "Pennwalt Corp."

Ultem® is registered Trademark of "General Electrics Co."

107106

EXTENSION CABLES FOR SCREWTYPE ELECTRODES ONLY (SCREW TO BNC CONNECTOR)

HI7855/1 Extension cable 1m (3.3') long HI7855/3 Extension cable 3m (9.9') long HI7855/5 Extension cable 5m (16.5') long HI7855/10 Extension cable 10m (33') long HI7855/15 Extension cable 15m (49.5') long

HI 7855 SERIES CABLE CONNECTORS

CONNECTOR AND 3.0 mm (0.12") CABLE WITH BNC

CONNECT TO SCREW TYPE ELECTRODES

CONNECT TO THE

BNC SOCKET

OF THE METER

POWER UNITS

HI710005 115VAC-12VDC voltage adapter HI710006 230VAC-12VDC voltage adapter

OTHER ACCESSORIES

ChecktempC Thermometer with penetration

probe (range -50.0 to 150.0°C)

HI76405 Electrode holder HI7669/2W Temperature probe with 1 m (3.3')

screened cable

HI710032 Pack of 10 plain paper spare rolls

(for pH 302 only)

HI710033 Replacement ink cartridge (for

pH 302 only)

HI 92000 Windows® compatible application

software

HI 920010 9 to 25-pin PC connection cable HI 920010/9 9 to 9-pin PC connection cable MANpH300R1 Instruction manual

Windows® is registered Trademark of "Microsoft Co."

ELECTRODE APPLICATION

REFERENCE GUIDE

Application Electrodes

1. Aquarium HI1332B, HI1911B, HI1312S

2. Bath-water HI1910B, HI1130B, HI1110S

3. Beer HI1131B, HI1111S

4. Bread HI2031B, FC200B, HI 2020S, FC200S

5. Cheese FC200B, FC200S

6. Dairy products FC911B, FC100B

7. Dirty water HI1910B, HI1912B

8. Emulsions HI1053B, HI1050S

9. Environment HI1230B, HI1210S

10. Flasks HI1331B, HI1310S

11. Food industry general use FC911B, FC 100B 12 . Fruit FC 200B, FC220B, FC200S 13 . Fruit juices, organic FC210B

14. Galvanizing waste solution HI1130B, HI1912B, HI1110S

15. Heavy-duty applications HI1135B, HI 1115S 16 . High purity water H I1053B, HI1050S

17. Horticulture HI1053B, FC200B, HI1050S, FC200S

18. In-line applications HI 1134B, HI1135B, HI2114B, HI 2910B,

19. Laboratory general use HI1131B, HI 1230B, HI1332B, HI1330B

20. Leather HI1413B, HI1410S

21. Lemon juice FC100B

22. Meat FC200B, HI2031B, FC200S, HI2020S 23 . Micro plate sampling of less than HI1083B, HI1080S

100 mL

24 . Milk and Yogurt FC210B

25. Paints HI1053B, HI1050S

26. Paper HI 1413B, HI1410S

27. Photographic chemicals HI1230B, HI1210S 28 . Quality control HI1332B, HI 1312S

29. Sausages FC200B, HI 2031B, FC200S, HI2020S

30. Semisolid products HI 2031B, HI2020S

31. Skin HI1413B, HI1410S 32 . Soil samples HI1230B, HI1210S

33. Solvents HI1043B, HI 1040S

34. Strong acid HI1043B, HI1040S

35. Submersion application HI1130B, HI1110S

36. Surface measurements HI1413B, HI1410S

37. Swimming pool H 1130B, HI 2114B, HI2910B

38. Titrations with constant temperature HI 1131B, HI1111S range

39 . Titrations with wide temperature HI1131B, HI1111S

range

40. Very high humidity FC911B, HI1912B, HI 1911B

41. Vials and test tube HI1330B, HI 1310S

42. Wine processing FC220B

HI1114S, HI1115S

HI1111S, HI1210S, HI 1312S, HI1310S

B = BNC connection plug S = Screw-type connection plug

109108

WARRANTY

All Hanna Instruments are warranted for two years against defects in workmanship and

materials when used for their intended purpose and maintained according to the instructions.

The probes and the electrodes are warranted for a period of six months.

CE DECLARATION OF CONFORMITY

DECLARATION OF CONFORMITY

Damages due to accident, misuse, tampering or lack of prescribed maintenance are not covered. This warranty is limited to repair or replacement free of charge of the meter only, whenever due to defect of manufacturing.

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 charge for repair or replacement. If the instrument is to be returned to Hanna Instruments, obtain a Return Goods Authorization from the Customer Service Department first and then send it with shipment cost 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.

All rights are reserved. Reproduction in whole or in part is prohibited without the written permission of the copyright owner.

Hanna Instruments reserves the right to modify the design, construction and appearance of its products without advance notice.

Hanna Instruments Srl V.le delle industrie 12 35010 Ronchi di Villafranca (PD) ITALY

herewith certify that the bench pH meters

have been tested and found to be in compliance with the following regulations:

IEC 801-2 Electrostatic Discharge IEC 801-3 RF Radiated IEC 801-4 Fast Transient EN 55022 Radiated, Class B

Date of Issue: 30-05-1996

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.

The glass bulb at the end of the electrode is sensitive to electrostatic discharges. Avoid touching this glass bulb at all times.

During operation, ESD wrist straps should be worn to avoid possible damage to the electrode by electrostatic discharges.

Any variation introduced by the user to the supplied equipment may degrade the instrument's EMC performance.

To avoid electrical shock, do not use these instruments when voltages at the measurement surface exceed 24VAC or 60VDC.

To avoid damages or burns, do not perform any measurement in microwave ovens.

pH 300 pH 301 pH 302

D.Volpato - Engineering Manager

Hanna Instruments S.r.l.

On behalf of

111110

PRINTED IN

ITALY

MANpH300R1

07/96

112

http://www.hannainst.com

Hanna Instruments PH 300, PH 301, PH 302 User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual