Hanna Instruments Gro Line HI9814 User manual

INSTRUCTION MANUAL
HI9814
pH, EC, TDS and Temperature
Meter with Quick Calibration

Thank you for choosing a Hanna Instruments product.
Please read this instruction manual carefully before
using this meter.
This manual will provide you with the necessary
information for correct use of this meter, 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] or view
our worldwide contact list at www.hannainst.com.
Dear
Customer,
All rights are reserved. Reproduction in whole or in part is prohibited
without the written consent of the copyright owner, Hanna Instruments
Inc., Woonsocket, Rhode Island, 02895, USA.

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TABLE OF CONTENTS
Table of Contents......................................................
Preliminary Examination ...........................................
General Description and Intended Use........................
Main Features..........................................................
Display Description...................................................
Specifications...........................................................
Operational Guide ....................................................
Calibrations..............................................................
Battery Replacement.................................................
Accessories...............................................................
Electrode Maintenance..............................................
Certification..............................................................
Recommendations for Users ......................................
Warranty .................................................................
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Remove the meter from the packing material and examine
it to make sure that no damage has occurred during
shipping. If there is any damage, contact your local Hanna
Instruments Office.
Each meter is supplied complete with:
• HI1285‑7 pH/EC/TDS probe with built‑in temperature
sensor, DIN connector and 1m (3.3’) cable
• HI50036 Quick calibration solution sachets (3 pcs.)
• HI700661 Electrode cleaning solution sachets for
agriculture (3 pcs.)
• Alkaline batteries: 1.5V AAA (3 pcs.)
• Calibration certificate of meter
• Calibration certificate of probe
• Instruction manual
Note: Save all packing material until you are sure
that the meter functions correctly. All defective items
must be returned in the original packing with the
supplied accessories.
PRELIMINARY EXAMINATIONGENERAL DESCRIPTION and INTENDED USE
HI9814 is a durable, portable pH, conductivity, total dissolved
solids and temperature meter for most measurements
encountered in hydroponics, aquaponics or general
agriculture applications. All operations and settings, are
made through only two buttons. The housing is water‑
proof and rated for IP67 conditions.
The supplied HI1285‑7 multiparameter probe measures pH,
EC/TDS, and temperature in one convenient, rugged probe.
A preamplifier is integrated into the probe to protect the
pH measurement from transient electrical noise. Sources
of electrical noise include ballasts used in lighting and
pumps to circulate water and nutrient solutions. Other
user‑selectable features include selectable TDS factors
of 0.5 and 0.7 as well as auto‑off after 8 minutes or
60 minutes to prolong battery life.

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MAIN FEATURES
• Simultaneous, pH, EC/TDS and temperature measurements
on a large three line LCD display
• Automatic and simultaneous pH and EC calibration
• Selectable temperature unit
• pH electrode condition display
• mV of pH measurement for pH electrode check
• Last calibration points for pH and EC
• HI1285‑7 dedicated pH/EC/TDS/temperature probe
• Probe quick connect system
• Battery life indication and low battery detection
• Auto‑off function
• Keystroke confirmation tone
• Waterproof casing IP67
1 Quick calibration tag
2 Stability indicator
3 Primary LCD
4 Battery percentage
5 Secondary LCD
6 Electrode condition indicator
7 TDS conversion factor
8 Low battery indicator
9 pH calibration buffer(s) used
10 Automatic Temperature Compensation indicator
11 Measurement unit
12 Temperature unit
13 Third LCD
14 Meter modes indicator
DISPLAY DESCRIPTION

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Range*
‑2.00 to 16.00 pH
±825 mV (pH‑mV)
0.00 to 6.00 mS/cm (EC) **
0 to 3000 ppm (0.5 CF)/0 to 3990 ppm (0.7 CF)
‑5.0 to 105.0 °C / 23.0 to 221.0 °F
Resolution
0.01 pH
1 mV (pH‑mV)
0.01 mS/cm
10 ppm (mg/L)
0.1 °C / 0.1 °F
Accuracy
@ 20°C / 68°F
±0.02 pH
±1 mV (pH‑mV)
±2% F.S.
±2% F.S.
±0.5 °C / ±1.0 °F
Temperature
Compensation
pH ‑ Automatic
EC ‑ Automatic, with β=1.9%/ °C
pH Calibration
Automatic, 1 or 2 point, choose from:
4.01;7.01;10.0 pH buffers
‑ one‑point calibration using quick calibration
solution
EC Calibration
Automatic, one‑point at 1.41 mS/cm or
5.00 mS/cm
‑ one‑point calibration using quick calibration
solution
TDS CF*** 0.5 (500 ppm) or 0.7 (700 ppm)
Probe (included) HI1285‑7 pH/EC/TDS/temperature sensor, DIN
connector and 1 m (3.3’) cable
Battery type / life 1.5V AAA (3 pcs.)
approx. 600 hours of continuous use
Auto‑Off user selectable: after 8 min, 60 min or disabled
Environment 0 to 50 °C (32 to 122 °F) RH max. 100%
Meter Dimensions 154 x 63 x 30 mm (6.1 x 2.5 x 1.2”)
Meter Mass
(with batteries) 196 g (6.91 oz.)
Casing Ingress
Protection Rating IP67
*the pH range is limited from 0 to 13 pH and the temperature range
from 0 to 50 °C (32 to 122 °F) using HI1285‑7 probe.
**mS/cm is displayed as mS on the display.
***TDS Conversion Factor: 1000 μS/cm = 500 ppm with 0.5 CF.
SPECIFICATIONS

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Each meter is supplied with batteries. Before using the
meter for the first time, open the battery compartment
and insert batteries, observing the polarity (see “Battery
Replacement“).
CONNECT THE PROBE
Withthemeterturned off, connecttheHI1285‑7probeto the
DIN socket on the bottom of the meter by aligning the pins
and pushing in the plug firmly. Remove the protective cap
from the probe before taking any measurements.
Turn the meter on
To turn the meter ON, press the button on
the front of the meter. If it does not turn on, make
sure that the batteries are properly installed in their place.
OPERATIONAL GUIDE

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Battery life
Measurement
mode
LCD
check up
→ →
→
Electrode
check
The meter is provided with an active acoustic signal when
a key is pressed.
At start‑up the meter displays all LCD segments for a few
seconds, followed by the percentage indication of the remaining
battery life, displaying “WAIT“ until electrode check is in
process then the meter enters the normal measurement mode.
Note: The meter detects the presence and the type of the
probe at its input.
- If the probe is not connected the message “NO”
”PROBE“ appears alternatively on the third LCD.
- If the probe is not compatible “WRONG” ”PROBE“
message appears alternatively on the third LCD line
with “---“ blinking on the first LCD line.
Note: A HI12943 pH probe may be used on this meter
but conductivity reading will not be displayed. “---“and
“NoEC“ message will be displayed.
- If the readings are out of range, the nearest range
limits are displayed blinking (E.g. -2.00 pH -5.0 °C).
OPERATIONAL GUIDE
To enter calibration mode
Press and hold the button until ”POWER” and
tag is replaced by “QUICK“ tag if quick calibration
is selected from setup menu, or “PH STD“ tag or
“EC STD“ tag if standard calibration is selected from
setup menu. Release the button.
To enter Setup mode
From a measurement screen press and hold button until
“STD“ and tag is replaced by “SETUP“ and
tag. Release the button.
To turn the meter OFF
Whilein measurementmode,pressthe button.”POWER”
and tag will appear. Release the button.

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OPERATIONAL GUIDE
METER SETUP
Setup mode allows configuration of parameters: Temperature unit,
Auto‑off, Calibration type, Beep confirmation tone, pH Resolution,
pH calibration Information and TDS conversion factor.
• “TEMP“ is displayed on the third LCD
line with the current temperature unit
(E.g. “TEMP °C“), for °C/°F selection,
use the SET button. After the temperature
unit has been selected, press to confirm and to enter the
“A-OFF“ selection.
• Use the SET button, to cycle through the
auto‑off choices: 8 minutes (“8”, default
value), 60 minutes (“60”) or disabled
(“---”). Press to confirm and to enter
the calibration type selection.
• tag is displayed. Use the SET
button to choose from “STD“ (standard
calibration) or “QUICK“ (one‑point
quick calibration). Press to confirm
and to enter the “BEEP“ selection.
• To switch ON or OFF the beep tone,
press the SET button; press to con‑
firm and to enter electrode calibration
information “INFO“ selection.
• To switch ON or OFF the electrode
condition indicator on the LCD, press
the SET button; press to exit setup
options; Change the set with the SET
button, then press to confirm and to enter TDS conversion
factor “CONV“.
• “CONV“ is displayed on the third
LCD line with the current TDS factor
(E.g. “0.50“), for selecting, “0.70“
TDS factor use the SET button. Press
to confirm and to return to normal mode.
pH MEASUREMENT
Make sure the meter has been calibrated before use.
If the probe is dry, soak it in HI70300 storage solution for
a minimum of 30 minutes to reactivate it.

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If fouled, clean the electrode by soaking in cleaning solution
for 20 minutes, then rinse the tip and soak in storage solution
at least 30 minutes before use. Rinse the electrode off well
and shake off excess droplets. Recalibrate before using.
Submerge the probe in the sample to be tested while stirring
it gently. Wait until the tag on the LCD disappears.
The LCD displays the pH value (automatically compensated
for temperature) on the primary LCD, the EC, TDS or pH‑mV
value on the secondary LCD, while the third LCD line displays
the sample temperature.
If measurements are taken in different
samples successively rinse the probe
tip thoroughly†to eliminate cross‑
contamination. For better accuracy,
frequent calibration of the pH sensor with the meter is
recommended. In addition, the meter must be recalibrated
whenever:
a) The pH electrode is replaced.
b) After testing aggressive chemicals.
c) Where high accuracy is required.
d) At least once a month.
e) After cleaning the probe.
†The probe tip should be rinsed with purified water (reverse osmosis,
distilled, or deionized) before and after placing in any solution
(buffer, storage, or sample).
Follow directions for single and two‑point calibration below:
SECOND LINE MEASUREMENT
While in measurement mode, press the SET button to
scroll between EC, TDS or mV of pH measurement on the
secondary LCD.
EC MEASUREMENT
Rinse the probe tip off with lots of clean water to remove
storage solution, buffers or samples. Shake off any drop
lets that remained. Place the probe in the sample to be
tested. Use plastic beakers or containers to minimize any
electromagnetic interference. Tap the probe lightly on the
bottom of the container to remove air bubbles that may be
trapped inside the tip.
OPERATIONAL GUIDE

11
Wait for a few minutes for the temperature sensor to reach
thermal equilibrium, when the tag disappears. The LCD
displays the EC or TDS value (automatically compensated
for temperature) on the secondary LCD, while the third LCD
displays the sample temperature.
HOLD MODE
While in measurement mode, press and hold the SET
button until “HOLD“ appears on the third LCD line for
1 second. The measurement reading will be frozen on the
LCD with “H” blinking.
Press any button to resume active measurements.
pH CALIBRATION
Select calibration type “STD“ from SETUP. Place the
sensor into the first calibration buffer. If performing a two‑point
calibration, use pH 7.01 buffer first. The meter will enter the
calibration mode, displaying “pH 7.01 USE” and
tag blinking.
SINGLE-POINT pH
1. Place the probe in any buffer from
the selected buffer set. The meter
will automatically recognize the buffer value.
2. If the buffer is not recognized or the calibration offset is
out of the accepted range “---- WRONG“ is displayed.
3. If the buffer is recognized “REC“ is displayed then
“WAIT“ until the calibration is accepted.
If using pH 7.01, after acceptance of the buffer press any
key to exit. The ”SAVE” message is displayed and the meter
returns to pH measurement mode.
If using pH 4.01 or 10.01 buffer the ”SAVE” message is
displayed and meter returns to pH measurement mode.
TWO-POINT pH
Proceed with steps 1 through 3 under single point calibration
using 7.01 pH buffer first. Then follow steps below:
OPERATIONAL GUIDE CALIBRATIONS
→

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The ”pH 4.01 USE” message is then displayed. Place the
probe in the second calibration buffer (pH 4.01 or 10.01).
When the second buffer is accepted, the LCD will display
“SAVE” for 1 second and the meter will return to the normal
measurement mode.
If the buffer is not recognized or the slope is out of accepted
range ”--- WRONG” is displayed. Change the buffer, clean
the electrode or press any key to exit calibration.
It is always recommended to carry out a two‑point calibration
for better accuracy.
When the calibration procedure is completed, the tag
is turned on together with the calibrated points.
To exit calibration and reset default values
After entering the calibration mode and before the first point is
accepted, it is possible to quit the procedure and return to the
last calibration data by pressing the button. The LCD displays
“ESC“ for 1 second and the meter returns to normal mode.
To reset the default values and clear a previous calibration,
press the SET button after entering the calibration mode
and before the first point is accepted.
The LCD displays “CLEAR“ for 1 second, the meter resets to
the default calibration and the tag with the calibrated
points on the LCD disappears.
QUICK CALIBRATION FOR pH AND EC
Select calibration type “QUICK“ from meter setup. Enter
calibration mode. Immerse the probe in the HI50036
calibration solution. When the standard value is recognized
and stability is reached the meter automatically accepts the
calibration. The LCD will display “SAVE” for 1 second and
return to normal measurement mode. If the standard is not
recognized or the slope is out of accepted range “--- WRONG“
is displayed. Change the calibration solution, clean the electrode or
press any key to exit calibration. When the calibration procedure
is completed, the and tag is turned on.
pH ELECTRODE CONDITION
The display is provided with a probe icon (unless the feature
is disabled from setup) which indicates the pH electrode
status after calibration. The “condition” remains active for
CALIBRATIONS

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CALIBRATIONS
12 hours (unless the batteries are removed).
The electrode condition is evaluated only if the current pH
calibration has two points.
5 bars: excellent condition
4 bars: very good condition
3 bars: good condition
2 bars: fair condition
1 bar: poor condition
1 bar blinking: very poor condition
With 1 bar it is recommended to clean the electrode and
recalibrate. If there is still only 1 bar or 1 bar blinking,
replace the probe.
SENSOR CHECK
Setting the meter to pH‑mV range the user can check the
sensor status at any time. The offset value is the mV read‑
ing in pH 7.01 buffer (@ 25 °C/77 °F). If this reading
is outside the range ±30 mV, the electrode is considered
“very poor”. The slope value of the sensor is the difference
between readings in pH 7.01 and in pH 4.01 buffers. When
the slope reaches the value of about 150 mV, the electrode
is considered “very poor“. When “poor“ or “very poor“, it
is recommended to replace it with a new one.
Note: To ensure reliable readings, the electrode must be
cleaned with cleaning solution before measuring the offset
and then hydrated in storage solution for a minimum of
30 minutes before calibrating the probe.
EC calibration
Rinse the tip off and shake excess droplets from the probe.
Select calibration type “EC STD“ . The meter enters
the calibration mode and “1.41 USE” is displayed with
tag blinking. Immerse the probe in 1.41 mS/cm
or 5.00 mS/cm calibration solution. If the standard value
is recognized “REC“ is displayed then “WAIT“ until the
calibration is accepted. The LCD will display “SAVE” for
1 second and return to normal measurement mode. If the
standard is not recognized “--- WRONG“ is display. Change
the standard, clean the electrode or press any key to exit
calibration. When the calibration procedure is completed,
the tag is turned on.

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Replace the battery cover making sure that the gasket is
in place.
Replace the three 1.5V AAA alkaline batteries located in
the battery compartment, observing the indicated polarity.
BATTERY REPLACEMENT
When the remaining battery life is less
than 10% the battery tag blinks on the
display to warn the user.
Battery Error Prevention System (BEPS)
If the battery is too weak (“0%”) the display shows
“bAtt“, “DEAD“ for few seconds then the meter power off.
Immediately replace the batteries with new ones.
The batteries are accessed by opening the battery cover
on the back of the instrument. Remove protective boot
if present.
BATTERY REPLACEMENT

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HI1285-7
pH/conductivity probe with built‑in
temperature sensor, DIN connector and
1 m (3.3’) cable
HI50036P Quick calibration solution, 20 mL sachets
(25 pcs.)
HI5036-012 Quick calibration solution, 120 mL
HI5036-023 Quick calibration solution, 230 mL
HI5036-050 Quick calibration solution, 500 mL
HI7004-023 GroLine pH 4.01 calibration buffer,
230 mL
HI7007-023 GroLine pH 7.01 calibration buffer,
230 mL
HI7010-023 GroLine pH 10.01 calibration buffer,
230 mL
HI7031-023 GroLine 1413 μS/cm conductivity
standard, 230 mL
HI7039-023 GroLine 5000 μS/cm conductivity
standard, 230 mL
HI70061G GroLine General Purpose Cleaning solution
sachets, 20 mL (25 pcs.)
HI710030 Silicon rubber boot green color
HI76405 Electrode holder
ACCESSORIES

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ACCESSORIES
Code and serial
number on the
other side
Temperature sensor
EC cell
Reference junction
pH bulb
Quick connector with
Rubber protection,
and 1 meter cable
PREPARATION
• Remove the protective cap. DO NOT BE ALARMED IF ANY SALT
DEPOSITS ARE PRESENT. Rinse probe tip with running water.
• Shake the electrode down as you would do with a
clinical thermometer to eliminate any air bubbles inside
the glass bulb.
• If the bulb and/or junction are dry, soak the electrode in
HI70300 Storage Solution for a minimum of 30 minutes.
• Rinse well after removing the probe from storage solution. All
storage solution must be removed from the EC electrodes to
function properly. The storage solution is highly conductive.
• Calibrate probe before using.

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STORAGE
• To minimize clogging and ensure a quick response time,
the glass bulb and the junction should be kept moist and
not allowed to dry.
• Replace protective cap with a few drops of HI70300
Storage Solution.
• Follow PREPARATION above before taking measurements.
Note: NEVER STORE THE ELECTRODE IN DISTILLED WATER.
PERIODIC MAINTENANCE
• INSPECT the probe especially the pH bulb for any
scratches or cracks. If any present, replace the probe.
CLEANING PROCEDURE
• Soak in Hanna HI7061 general cleaning solution or
HI700661P general purpose cleaning solution for
agriculture for 20 minutes. Rinse well and calibrate
before using.
IMPORTANT: After performing any of the cleaning procedures
rinse the electrode thoroughly with distilled water. Soak
the electrode in HI70300 Storage Solution for 30 minutes.
Rinse well. All storage solution must be removed from the
EC probes to function properly. The storage solution is highly
conductive. Calibrate probe before taking measurements.
TROUBLESHOOTING
Meter: Follow operating and calibration procedures from
this instruction manual.
pH Electrode: Evaluate your pH electrodes performance by
performing the SENSOR CHECK procedure found on page 13.
EC Cell: Rinse probe tip with copious amounts of tap water.
Then rinse with deionized or distilled water. Shake off water
droplets. Place tip in a fresh sample of conductivity (or TDS)
standard. Observe reading on display. If the reading is close
to standards value, a calibration should correct the value.
If the value is drifting, inspect to see if matter is caught
around the cell electrodes. Remove matter carefully, rinse
well and repeat test. If the EC reading continues to drift,
the probe should be replaced.
ELECTRODE MAINTENANCE

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MAN9814 05/18
All Hanna Instruments conform to the CE European Directives.
Disposal of Electrical & Electronic Equipment. The
product should not be treated as household waste. Instead
hand it over to the appropriate collection point for the
recycling of electrical and electronic equipment which will
conserve natural resources.
Disposal of waste batteries. This product contains
batteries, do not dispose of them with other household
waste. Hand them over to the appropriate collection point
for recycling.
Ensuring proper product and battery disposal prevents
potential negative consequences for the environment and
human health. For more information, contact your city,
your local household waste disposal service, the place
of purchase or go to www.hannainst.com.
RoHS
compliant
CERTIFICATION

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Hanna Instruments reserves the right to modify the design,
construction or appearance of its products without advance notice.
HI9814 is warranted for two years against
defects in workmanship and materials when
used for its intended purpose and maintained
according to instructions. 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 your local Hanna
Instruments Office. If under warranty, report
the model number, date of purchase, serial
number (see engraved in the back of the
meter) 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
meter 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 meter, make sure it is properly
packed for complete protection.
Warranty
Before using this product, make
sure it is entirely suitable for your
specific application and for the en‑
vironment in which it is used. Any
variation introduced by the user
to the supplied equipment may
degrade the meters’ performance.
For yours and the meter’s safety
do not use or store the meter in
hazardous environments.
Recommendations
for Users

Printed in ROMANIA
World
Headquarters
Hanna Instruments Inc.
Highland Industrial Park
584 Park East Drive
Woonsocket, RI 02895 USA
www.hannainst.com
MAN9814
Local Office
Hanna Instruments Inc.
270 George Washington Highway
Smithfield, RI 02917
Phone: [phone]
Fax: [phone]
e‑mail: [email protected]