Hanna Instruments HI 931300 User Manual

Instruction Manual

HI931300 HI931301

Portable Microprocessor

Logging pH Meters with

Last Calibration Data

Storage

RANGE

pH0.00....14.00

ºC0.00...+100.0

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 more precise idea of its versatility in a wide range of applications.

These instruments are in compliance with the

directives EN 50081-1 and EN 50082-1.

TABLE OF CONTENTS

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

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

LCD Display Functional Description ........... 2

Functional Description ................................ 3

Specifications ............................................. 4

Operational Guide....................................... 5

pH Calibration Procedure.......................... 14

pH Values at Various Temperature .......... 19

Temperature Calibration ............................ 20

Logging Function (HI931300 only) ............ 23

Data Transfer to PC.................................. 25

Fault Functions ........................................ 26

Memory Organization ............................... 27

Electrode Conditioning and Maintenance . 28

Battery Replacement ................................ 32

Temperature-Resistance Correlation for

HANNA pH sensitive glass....................... 33

Accessories.............................................. 35

Electrode Application Reference Guide .... 43

Warranty ................................................... 44

CE Declaration of Conformity ................... 45

ISO 9000 Certified Company since 1992

PRELIMINARY EXAMINATION

Remove the instrument from the packing material and examine it carefully to make sure that no damage has occurred during shipment. If noticeable damage is found, notify your Dealer.

Each pH meter is supplied complete with:

• HI1230B Combination pH Electrode

• HI7669/2W Temperature Probe

• 1.5V AA size Alkaline Batteries (4 pcs)

• Rugged Carrying Case.

Note: Save all packing material until you are

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

GENERAL DESCRIPTION

Microprocessor-based, HI931300 and HI931301 are the first GLP portable pH meters

and memorize the last calibration data: date and time, offset and 2 slope values.

This exclusive feature allows the operator to check the status of the meter at any time by simply pressing one button.

All pH measurements are automatically compensated for temperature (ATC) when used with the supplied temperature probe.

HI931300 can also memorize pH and temperature measurements at a user-selectable intervals (from 1 to 180 minutes).

It is possible to connect the HI931300 to a PC with the aid of an infrared transmitter,

HI9200, and a Windows® compatible soft- ware, HI92000. Data can be downloaded in seconds through the infrared diode for storage, graphing, and other functions.

The instrument housing is made of rugged, lightweight material, weighing under 500 g (17 oz.).

Other features include automatic calibration (1, 2 or 3 point), 3 memorized buffers (pH 4.01,

7.01, 10.01), auto shut-off, low battery detection and 12VDC socket for power supply (optional, see page 41 for details).

LCD DISPLAY FUNCTIONAL DESCRIPTION

LOG

1. Primary Display (pH or temperature measurements are displayed with one or two decimal digits)

2. Secondary Display (temperature measurement is displayed without decimal digit).

Windows® is a registered Trademark of "Microsoft Co."

FUNCTIONAL DESCRIPTION

LOG

HI 931300

MICROPROCESSORLOGGING

pHMETER

ON/OFF ON/OFF

RANGE RANGE

RANGE

pH0.00....14.00

ºC0.00...+100.0

LOG

ALT ALT

CAL CAL

CFM CFM

FACTOR FACTOR

TIME TIME

12 12

pH pH

HI 931301

11 11

10 10

MICROPROCESSORpH METER

RANGE

pH0.00....14.00

ºC0.00...+100.0

1. Electrode Connector (BNC)

2. Temperature Probe Connector

3. Liquid Crystal Display

4. LOG key, to enter the logging mode

(HI931300 only)

5. ON/OFF key, to turn the meter on or off

6. ALT, alternate function key

7. RANGE key, to select the pH or the °C

measurement mode

8. FACTOR key, to display calibration data

9. TIME key, to display time for HI931301

and to display time and logging interval for HI931300

10. CFM key, to confirm the calibration

reading and DOWN arrow key to scroll down

11. CAL key, to enter or exit calibration

mode and UP arrow key to scroll up

12. Socket for External Power Supply

SPECIFICATIONS

HI931300 HI 931301

Range pH 0.00 to 14.00 pH

Resolution pH 0.01 pH

Accuracy pH +0.01 pH (@20°C/68°F) °C +0.5°C

Typical EMC pH +0.02 pH Deviation °C +0.5°C

Calibration Automatic 1, 2 or 3 points

Offset Calibration +1 pH Slope Calibration from 70 to 108% Temperature Automatic from 0 to 100°C

Compensation (32 to 212°F) or fixed

Electrode HI1230B combination pH

Temp. Probe HI7669/2W with 1 m

Input Impedance 1012 Ohm Power Supply 4x1.5V AA size batteries

Logging Interval 1, 2, 5, 10, Not

Operating from 0 to 50°C Conditions (32 to 122°F)

Dimensions 220 x 82 x 66 mm

Weight 500 g (18 oz.) meter alone

°C 0.0 to 100.0°C

°C 0.1°C

with pH 4, 7 and 10

buffers memorized

at 25°C (77°F)

gel electrode (included)

(3.3') cable (included)

200 hours of con-

tinuous use; power

socket for 12VDC adapter

15, 20, 30, Available

60, 120, 180

minutes

95% RH max

(8.7 x 3.2 x 2.6")

Kit: 1.4 Kg (3.1 lb.)

OPERATIONAL GUIDE

INITIAL PREPARATION

Each meter is supplied

1.5V

complete with batteries. Remove the back cover, un-

wrap the batteries and in-

1.5V

SCREW

POTS

RESET

stall them while paying attention to the polarity.

PROBES CONNECTION

To prepare the instrument for use, connect the

HI 7669/2W

TEMPERATURE

PROBE

COMBINATION pH ELECTRODE WITH BNC CONNECTOR

pH electrode to the BNC connector located on the top of the instrument.

Connect the temperature probe to the appropriate connector.

The temperature probe can be used independently to take temperature measurements, or it can be used in conjunction with the pH electrode to utilize the meter's ATC capability.

If the temperature probe is left disconnected, the meter

defaults to a temperature of "25°C" (77°F).

To switch the meter on, press the ON/OFF key.

ON/OFF

To maximize battery life, the display is automatically switched off after 5 minutes (for HI 931300) or 10 minutes (for HI931301) of

non-use. However, HI931300 will continue to

log, if in the logging mode, pH and temperature.

To revive the display, press the ON/OFF key.

ON/OFF

Before proceeding with pH measurements follow the calibration procedure (see page 14).

SETTING DATE/TIME/LOGGING INTERVAL

Press the ALT and the TIME keys simultaneously. The display will show the date setting. The year will be blinking.

ALT

RANGE

CAL

TIME

DATE

Use the UP or the DOWN arrow keys to select the year.

CAL CFM

When the correct year is selected, press the TIME key once. The month will start blinking.

DATE

TIME

Select the month by using the UP or the DOWN arrow keys.

CAL CFM

Press the TIME key. The day will start blink-

ing.

DATE

TIME

Use the UP or the DOWN arrow key to select the correct day.

CAL CFM

Press the ALT and the TIME keys simultaneously. The display will now show the time with the logging interval blinking (for HI931300 only).

ALT

RANGE

CAL

TIME

INTV

The interval can be selected from 1, 2, 5, 10, 15, 30, 60, 120 or 180 minutes by using the UP and the DOWN arrow keys.

Note: the default logging interval is set at 1

minute.

CAL CFM

When the desired logging interval is selected press the TIME key. The hour will start blinking.

TIME

INTV

TIME

To select the hour, press the UP or the

DOWN arrow keys (24 hour clock).

CAL

CFM

To set the hour press the TIME key once. The minutes will be blinking.

TIME

INTV

TIME

Use the UP or the DOWN keys to select the minutes.

CAL CFM

Press the ALT and the TIME keys simultaneously to leave this mode.

ALT

CAL

RANGE

TIME

The time, date and printing interval are now set and stored in the memory. The memory is retained even when the meter is switched off.

TO VIEW THE DATE/TIME/LOGGING INTERVAL/pH/TEMPERATURE

To view the time press the TIME key. In HI931300 this also displays the selected logging interval.

HI931300

TIME

INTV

TIME

HI931301

To view the date, press the UP arrow key when the LCD is displaying time.

DATE

CAL

To view pH and temperature press the RANGE key (temperature will be displayed on the secondary display without decimal digit).

RANGE

To view the temperature only (on the primary display and with decimal digit) press the RANGE key.

°C

RANGE

If “25.0” appears together with the blinking

°C

“°C” symbol, it indicates that the temperature probe is not connected.

TO VIEW THE pH CALIBRATION DATA

Press the FACTOR key and the meter will display the last calibration date, in the following sequence:

- month, day and year

DATE

FACTOR

Press the FACTOR key again and the meter will display the last calibration time as

- hour and minutes.

TIME

FACTOR

Press the FACTOR key again, the display will show the offset calibration factor as:

- pH offset value

- pH 7 buffer

FACTOR

The pH offset value should be between ±0.50 pH.

For values higher than +0.50 or lower than

-0.50 pH the electrode is no longer reliable

and should be replaced.

Press the FACTOR key again, the display will show the first slope calibration factor as:

- pH % slope 1st value

- pH 4 buffer

FACTOR

Press the FACTOR key again to display the second slope calibration factor as:

- pH slope 2nd value

- pH 10 buffer.

FACTOR

The slope characteristic of the pH electrode is directly displayed in percentage of the theoretical value of 58.17mV per pH unit at 20°C.

Press the FACTOR key again to return to normal operation.

FACTOR

TAKING pH MEASUREMENTS

Press the RANGE key to get into the pH mode. The temperature value will be displayed on the secondary display.

RANGE

Make sure that the pH electrode and the temperature probe are securely connected to the meter. If possible, use plastic beakers to minimize any EMC interferences.

To take pH measurements, simply submerge the bottom 4 cm (1½") of the electrode and the temperature probe in the solution to be tested, stir

4 cm

(1½")

gently and allow a few seconds for the electrode to adjust and stabilize.

For greatest accuracy, it is recommended to calibrate the meter regularly (see page 14).

The pH reading of any sample is directly effected by temperature. In order for the meter to measure the pH accurately, it must know the temperature.

To use the meter's Automatic Temperature Compensation capability, submerge the temperature probe in the sample as close to the electrode as possible.

If the temperature probe is

disconnected, the meter assumes that the temperature of the solution is 25°C (default temperature).

Press the RANGE key to show the temperature reading. If the temperature probe is disconnected the "°C" symbol will be blinking.

°C

RANGE

If measurements are taken successively in different samples, it is recommended to rinse the electrode thoroughly with deionized or tap water first and then with some of the sample to be tested. This procedure will minimize contamination between the samples, resulting in more accurate results.

TAKING TEMPERATURE MEASUREMENTS

The HI7669/2W temperature probe that is supplied with HI931300 and HI931301 is a liquid/general purpose probe.

Taking a temperature measurement with HI931300 and HI931301 is very easy.

Press the RANGE key to get into the temperature mode. The temperature value and the "°C" symbol will be displayed on the primary display.

°C

RANGE

Make sure the probe is properly connected to the meter, and take the measurement (allow 1 or 2 minutes for the temperature to stabilize).

If the temperature probe is disconnected, the meter assumes that the temperature

°C

of the solution is "25.0 °C" (default temperature) and the "°C" symbol blinks.

Note: When taking pH mea-

surements, in order to have the best accuracy and proper temperature compensation, immerse the temperature probe as close as possible to the pH electrode.

4 cm

(1½")

+ 33 hidden pages