Hanna Instruments HI 9813-6 User manual

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Instruction Manual
HI 9813-5 & HI 9813-6
Portable
pH/EC/TDS/°C Meters
www.hannainst.com

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Dear Customer,
Thank you for choosing a Hanna product.
Please read this instruction manual carefully before using the meter.
This manual will provide you with the necessary information for
correct use of the instrument, as well as a precise idea of its versatility.
If you need additional technical information, do not hesitate to e-mail
us at [email protected].
WARRANTY .................................................................................. 2
PRELIMINARY EXAMINATION ........................................................ 3
GENERAL DESCRIPTION ................................................................ 3
FUNCTIONAL DESCRIPTION OF HI 9813-5 ................................... 4
FUNCTIONAL DESCRIPTION OF HI 9813-6 ................................... 5
SPECIFICATIONS........................................................................... 6
OPERATIONAL GUIDE ................................................................... 7
pH CALIBRATION ......................................................................... 9
pH VALUES AT VARIOUS TEMPERATURES ................................... 10
EC/TDS CALIBRATION ................................................................. 11
BATTERY REPLACEMENT .............................................................. 12
PROBE MAINTENANCE ................................................................ 12
ACCESSORIES ............................................................................. 14
WARRANTYWARRANTY
WARRANTYWARRANTY
WARRANTY
TABLE OF CONTENTSTABLE OF CONTENTS
TABLE OF CONTENTSTABLE OF CONTENTS
TABLE OF CONTENTS
HI 9813-5 and HI 9813-6 are guaranteed for two years against
defects in workmanship and materials when used for their intended
purpose and maintained according to instructions. Electrodes and
probes are guaranteed for six months. This warranty is limited to
repair or replacement free of charge.
Damage due to accidents, misuse, tampering or lack of prescribed
maintenance is not covered.
If service is required, contact the dealer from whom you purchased
the instrument. If under warranty, report the model number, date
of purchase, serial number and the nature of the problem. If the
repair is not covered by the warranty, you will be notified of the
charges incurred. If the instrument is to be returned to Hanna
Instruments, first obtain a Returned Goods Authorization number
from the Technical Service department and then send it with shipping
costs prepaid. When shipping any instrument, make sure it is properly
packed for complete protection.

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HI 9813-5 and HI 9813-6 are complete, versatile and splash-proof
portable combination meters designed with the utmost precision and
simplicity. Both models provide measurements of pH, EC and TDS
ranges, which can be easily selected using a membrane keypad on
the front panel.
Conductivity measurements are automatically compensated for
temperature changes with a built-in temperature sensor. The
temperature coefficient is fixed at 2%/°C.
•HI 9813-5 is a pH/EC/TDS meter designed for simplicity of use
in taking pH, mS/cm, ppm and temperature in the °C scale
measurements. Suited for hydroponics, greenhouses, farming
and ground water applications.
•HI 9813-6 is the most advanced model, including the Cal-
CheckTM feature, which allows the user to easily check the probe
calibration status at any time.
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 meter is supplied with:
• Combination probe with 8-pin DIN connector & 1 m (3.3') cable:
•HI 1285-5, pH/EC/TDS/°C probe, for HI 9813-5
• HI 1285-6, pH/EC/TDS/°C probe with Cal-CheckTM for
HI 9813-6
• HI 70007 pH 7.01 sachet, 1 pc
• HI 70031 1413 μS/cm (1.413 mS/cm) sachet, 1 pc
• HI 70442 1500 ppm sachet, 1 pc
• HI 700661 cleaning solution sachet, 2 pcs
• HI 50021 check solution sachet, 2 pcs (for HI 9813-6 only)
•Instruction manual
• 1 x 9V alkaline battery.
Note: Save all packing material until you are sure that the instrument
functions correctly. Any defective items must be returned in the
original packing together with the supplied accessories.
PRELIMINARY EXAMINATIONPRELIMINARY EXAMINATION
PRELIMINARY EXAMINATIONPRELIMINARY EXAMINATION
PRELIMINARY EXAMINATION
GENERAL DESCRIPTIONGENERAL DESCRIPTION
GENERAL DESCRIPTIONGENERAL DESCRIPTION
GENERAL DESCRIPTION
All rights are reserved. Reproduction in whole or in part is prohibited without the
written consent of the copyright owner.

4
1) 8-pin DIN connector for probe
2) Liquid Crystal Display
3) pH range selection key
4) mS/cm (EC) range selection key
5) ppm (TDS) selection key
6) pH offset calibration knob
7) EC/TDS calibration knob
8) °C (Temperature) selection key
9) On/Off key
FUNCTIONAL DESCRIPTION OF HI 9813-5FUNCTIONAL DESCRIPTION OF HI 9813-5
FUNCTIONAL DESCRIPTION OF HI 9813-5FUNCTIONAL DESCRIPTION OF HI 9813-5
FUNCTIONAL DESCRIPTION OF HI 9813-5

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1) 8-pin DIN connector for probe
2) Liquid Crystal Display
3) pH range selection key
4) mS/cm (EC) range selection key
5) ppm (TDS) range selection key
6) pH offset calibration knob
7) EC/TDS calibration knob
8) °C (Temperature) selection key
9) Check key
10) On/Off key
FUNCTIONAL DESCRIPTION OF HI 9813-6FUNCTIONAL DESCRIPTION OF HI 9813-6
FUNCTIONAL DESCRIPTION OF HI 9813-6FUNCTIONAL DESCRIPTION OF HI 9813-6
FUNCTIONAL DESCRIPTION OF HI 9813-6

6
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SPECIFICATIONSSPECIFICATIONS
SPECIFICATIONSSPECIFICATIONS
SPECIFICATIONS

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INITIAL PREPARATION
Each meter is supplied complete with a 9V battery. Remove the
battery compartment cover on the back of the meter and install the
battery while observing its polarity.
Connect the probe to the DIN socket on the top of the meter by
aligning the pins with the socket and pushing in the plug.
Always remove the probe protective cap before taking
any measurements, and make sure the meter has
been calibrated.
Turn the meter on by pressing the On/Off key.
TAKING pH MEASUREMENTS
If the probe has been left dry, soak the tip in HI 70300 storage solution
for 30 minutes to reactivate it.
• To take a pH measurement simply
submerge the tip (4cm/1½") of the
probe into the sample to be tested.
• Select the pH mode.
• Stir briefly and wait a couple of
minutes for the reading to adjust
and stabilize. The display shows
the pH value.
• If measurements are taken in different samples successively, it is
recommended to rinse (clean) the probe thoroughly to eliminate
cross-contamination. After cleaning, it is recommended to rinse the
probe with some of the next sample to be measured.
TAKING EC/TDS MEASUREMENTS
• Immerse the tip of the probe (4cm/1½") into the
sample to be tested. If possible, use plastic beakers
or containers to minimize any EMC interference.
• Tap the probe lightly on the bottom of the beaker
to remove any air bubbles which may be trapped
inside the tip.
OPERATIONAL GUIDEOPERATIONAL GUIDE
OPERATIONAL GUIDEOPERATIONAL GUIDE
OPERATIONAL GUIDE

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• Select the appropriate measurement range (EC or TDS).
• Wait for a couple of minutes for the
temperature sensor to reach thermal
equilibrium. The display then shows the
measurement automatically compensated
for temperature with the appropriate
following indication: “mS” tag indicates
the meter is in EC mode, while “ppm”
tag indicates the meter is in TDS
mode.
TAKING TEMPERATURE MEASUREMENTS
• Submerge the tip (4cm/1½") of the
probe into the sample to be tested.
• Select the °C mode.
• Stir briefly and wait a couple of minutes
for the reading to adjust and stabilize.
The display shows the temperature
value.
Notes: • If the display shows only a “1”
on the far left hand side, the
reading is out of range.
• It is recommended to clean
often the probe with HI 700661
Cleaning Solution.
• After measurements have been completed, the instrument
should be switched off, and the probe cleaned and
covered with the protective cap.

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For greatest accuracy, frequent calibration of the instrument is
recommended. The instrument should be recalibrated for pH:
a) Whenever the electrode is replaced.
b) At least once a month.
c) After testing aggressive chemicals.
d) Where extreme accuracy is required.
e) Whenever the CAL-CHECK test fails (HI 9813-6 only).
PREPARATION
Pour small quantities of pH 7.01 (HI 7007) or pH 4.01 (HI 7004)
or pH 10.01 (HI 7010) solution into a clean beaker.
To obtain accurate readings, use pH 7.01 (HI 7007) if you are going
to measure neutral or close to neutral samples, pH 4.01 (HI 7004)
if you are going to measure acidic samples or pH 10.01 (HI 7010)
for alkaline measurements.
If you need to calibrate to NBS standards, use pH 6.86 (HI 7006)
instead of pH 7.01 and pH 9.18 (HI 7009) instead of pH 10.01.
PROCEDURE
• Connect the probe and switch the meter on, then press the pH
key to display pH measurement.
•Remove the protective cap from the probe, rinse and immerse it in
the buffer and stir gently. Wait a couple of minutes for the
reading to stabilize.
• Take the temperature of the buffer solution, e.g.
10.0°C, as follow: select the °C mode and read
the displayed value.
• Adjust the pH calibration knob until
the LCD shows the pH value at the
above temperature (see the pH versus
temperature chart).
• The pH calibration is now complete.
Notes: • The probe should be submerged approximately 4 cm
(1½") into the solution. The thermometer has to be
located close to the probe.
• If turning the knob the needed value can not be reached,
clean the probe (see the “Probe Maintenance” section). If
also after the probe cleaning the value can not be
reached, replace the probe.
pp
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pH CALIBRATIONH CALIBRATION
H CALIBRATIONH CALIBRATION
H CALIBRATION

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For temperature compensation during calibration, please refer to the
following chart.
For instance, if the buffer temperature is 25°C, the display should
show pH 4.0 or 7.0 or 10.0.
If the buffer temperature is 10°C, the display should show pH 4.0 or
7.0 or 10.1.
pp
pp
pH VALUES AT VARIOUS TEMPERATURESH VALUES AT VARIOUS TEMPERATURES
H VALUES AT VARIOUS TEMPERATURESH VALUES AT VARIOUS TEMPERATURES
H VALUES AT VARIOUS TEMPERATURES

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Accessories needed:
• Use HI 70031 (1413 μS/cm = 1.413 mS/cm) EC calibration
solution or HI 70442 (1500 ppm) TDS calibration solution.
Note: The conversion between EC and TDS is made by a built-in
circuit, hence it is requested to calibrate the meter only in EC
or TDS range. The other range is thus automatically calibrated.
PROCEDURE
• Pour approximately 4 cm (1½") of a conductivity calibration
solution (e.g. HI 7031) into a beaker. If possible, use plastic
beaker to minimize any EMC interference.
• Immerse the probe in the solution.
• Wait for a couple of minutes for thermal equilibrium to be
reached.
• Tap the probe on the bottom, then shake it lightly while rotating
to make sure no air bubbles remain trapped inside the probe.
• Press the mS/cm (or ppm) key.
• Turn the EC/TDS calibration knob until the
display shows the EC or TDS reading at
25°C.
EC/TDSEC/TDS
EC/TDSEC/TDS
EC/TDS CALIBRATIONCALIBRATION
CALIBRATIONCALIBRATION
CALIBRATION

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PROBE MAINTENANCEPROBE MAINTENANCE
PROBE MAINTENANCEPROBE MAINTENANCE
PROBE MAINTENANCE
These meters are powered by a 9V battery that is located on the rear
of the instrument.
When battery symbol is empty a low battery condition is indicated.
When the low battery indication appears, only a few hours of working
time remains.
It is recommended to replace the battery immediately.
When the battery level is so low that it may cause unreliable
measurements, the meter turns off.
Battery replacement must only take place in a nonhazardous area
using a 9V alkaline battery.
Unscrew the three screws on the rear of the meter, remove the
battery compartment cover and replace the 9V battery with a new
one while observing its polarity.
Make sure the battery contacts are tight and secure before replacing
the cover.
BATTERY REPLACEMENTBATTERY REPLACEMENT
BATTERY REPLACEMENTBATTERY REPLACEMENT
BATTERY REPLACEMENT
PERIODIC MAINTENANCE
Inspect the probe 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 probe stem or bulb.
Connector must be perfectly clean and dry. If any scratches or cracks are
present, replace the electrode. Rinse off any salt deposits with water.

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CLEANING PROCEDURE
For better accuracy in measurements and to ensure a good performance
of the probe, a frequent cleaning is recommended.
For this purpose, soak it in Hanna HI 700661 Cleaning Solution for
5 minutes.
Note: For particular dirty (as for example protein, oil or grease) see
the “Accessories” section for Hanna specific solutions.
HI 9813-6 only:
CAL-CHECKTM FEATURE / CLEAN & CAL PROCEDURE
The unique Cal-CheckTM feature allows the user to check the meter
calibration status at any time. Simply follow the below procedure for
a quick and easy operation.
• Rinse the probe with water.
• Immerse the probe in the HI 50021 check solution.
Note: If the reading is around pH 4.0, the probe is broken and has
to be replaced.
• Press the Check key.
• If the meter is calibrated “Probe is
OK” message is displayed.
• If cleaning is needed “Clean Probe
and Calibrate” message is displayed:
1. immerse the probe in the
HI 700661 cleaning solution (or
in one of the available specific
solutions - see “Accessories” section)
for 5 minutes, then rinse it with tap water.
2. immerse again in the HI 50021 check solution and press the
CHECK key.
3. if the message “Probe is OK” is displayed, the meter does not
need calibration.
4. if the message “Clean Probe and Calibrate” is displayed
again, calibration is needed (see “pH Calibration” section).
Notes: • If it is not possible to calibrate, the probe has to be
replaced with a new one.
• For field applications, it is always recommended to keep a
spare probe handy. When anomalies are not resolved with
simple maintenance, change the probe and recalibrate
the meter.

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PROBES
HI 1285-5 Combination, amplified pH/EC/TDS/temperature probe
with built-in temperature sensor, 8-pin DIN connector
and 1 m (3.3') cable
HI 1285-6 Combination, amplified pH/EC/TDS/temperature probe
with Cal-Check feature, built-in temperature sensor,
8-pin DIN connector and 1 m (3.3') cable
pH BUFFER SOLUTIONS
HI 7004L pH 4.01 buffer solution, 500 mL bottle
HI 7006L pH 6.86 buffer solution, 500 mL bottle
HI 7007L pH 7.01 buffer solution, 500 mL bottle
HI 7009L pH 9.18 buffer solution, 500 mL bottle
HI 7010L pH 10.01 buffer solution, 500 mL bottle
CONDUCTIVITY & TDS CALIBRATION SOLUTIONS
HI 7031L 1413 μS/cm solution, 500 mL bottle
HI 7442L 1500 ppm (mg/L) solution, 500 mL bottle
OTHER SOLUTIONS
HI 700661P Cleaning solution, 20 mL sachet (25 pcs)
HI 50021P Check solution, 20 mL sachet (25 pcs)
HI 70300L Storage solution, 500 mL bottle
HI 7073L Protein cleaning solution, 500 mL bottle
HI 7074L Inorganic cleaning solution, 500 mL bottle
HI 7077L Oil & Fat cleaning solution, 500 mL bottle
OTHER ACCESSORIES
HI 710007 Shockproof rubber boot, blue
HI 710008 Shockproof rubber boot, orange
HI 710022 Blue protective case
ACCESSORIESACCESSORIES
ACCESSORIESACCESSORIES
ACCESSORIES

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Hanna Instruments reserves the right to modify the design, construction and
appearance of its products without advance notice.
RECOMMENDATIONS FOR USERS
Before using these products, make sure they are entirely suitable for
the environment in which they are used.
Operation of these instruments in residential areas could cause
unacceptable interferences to radio and TV equipment, requiring the
operator to follow 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 24 VAC or 60 VDC.
To avoid damages or burns, do not perform any measurement in
microwave ovens.

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Printed in EUROPE
(ROMANIA) MAN9813 06/10
Hanna Instruments Inc.
Highland Industrial Park
584 Park East Drive
Woonsocket, RI 02895 USA
Technical Support for Customers
Tel. [phone]
Fax [phone]
E-mail [email protected]
www.hannainst.com
Local Sales and Customer Service Office