Hanna Instruments HI 991300 User manual

HI991300 • HI991301
Waterproof
pH, EC, TDS & Temperature Meter
with Advanced Features
INSTRUCTION MANUAL

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
Preliminary examination ...........................................
General description and Intended use ........................
Main features...........................................................
Specifications...........................................................
Display description ...................................................
Operational guide.....................................................
Meter setup..............................................................
Battery replacement..................................................
Accessories...............................................................
Electrode maintenance..............................................
Certification..............................................................
Recommendations for users.......................................
Warranty .................................................................
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PRELIMINARY EXAMINATION
Remove the instrument and accessories from the packaging
and examine it carefully to make sure that no damage
has occurred during shipping. Notify your nearest Hanna
Instruments Customer Service Center if damage is observed.
Each HI991300 is delivered in a rugged carrying case and
is supplied with:
• HI12883 pH/EC/TDS probe with built‑in temperature
sensor, DIN connector and 1m (3.3’) cable
• HI70004 pH 4.01 buffer (1 sachet)
• HI70007 pH 7.01 buffer (1 sachet)
• HI70031 1413 μS/cm conductivity standard (1 sachet)
• HI70032 1382 mg/L (ppm) TDS calibration solution
(1 sachet)
• HI700601 pH and ORP electrode cleaning solution
(2 sachets)
• 100 mL beaker (1 pc.)
• 1.5V AAA alkaline batteries
• Instrument quality certificate
• Electrode quality certificate
• Instruction manual
Each HI991301 is delivered in a rugged carrying case and
is supplied with:
• HI12883 pH/EC/TDS probe with built‑in temperature
sensor, DIN connector and 1m (3.3’) cable
• HI70004 pH 4.01 buffer (1 sachet)
• HI70007 pH 7.01 buffer (1 sachet)
• HI70030 12880 μS/cm conductivity standard (1 sachet)
• HI70038 6.44 g/L (ppt) TDS calibration solution (1 sachet)
• HI700601 pH and ORP electrode cleaning solution
(2 sachets)
• 100 mL beaker (1 pc.)
• 1.5V AAA alkaline batteries
• Instrument quality certificate
• Electrode quality certificate
• Instruction manual
Note: Save all packing material until you are sure
that the instrument works correctly. Any damaged or
defective item must be returned in its original packing
material with the supplied accessories.
PRELIMINARY EXAMINATION

5
GENERAL DESCRIPTION AND INTENDED USE
GENERAL DESCRIPTION AND INTENDED USE
The HI991300 and HI991301 are lightweight, portable
pH, conductivity (or total dissolved solids) and temperature
meters for portable applications requiring both pH
and conductivity (or TDS) measurement. To increase
conductivity accuracy, two models are available, with
different conductivity ranges, for applications from purified
to brackish waters.
The HI991300 and HI991301 feature a two button
operation system and are simple to use. All operations and
settings are made through these two buttons. They have a
waterproof and compact casing rated for IP67 conditions
and a large three‑line display. The meters have automatic
pH calibration at one or two points and a single conductivity
calibration. Other user selectable features include different
TDS factors from 0.45 to 1.00, and a range of temperature
coefficients (β) from 0.0 to 2.4% for better conductivity or
TDS solution temperature compensation.
The supplied HI12883 multi‑parameter probe, incorporates
a dome shaped pH bulb rated from 0‑13 pH, a single
junction Ag/AgCl reference electrode with gelled electrolyte
and a retractable cloth wick junction, a graphite EC/TDS
cell, and a temperature sensor in one convenient, rugged
polypropylene body. In addition, to ensure against
interference from transient electrical noise to pH, a solid‑
state preamplifier is integrated into the probe. The probe is
rated from 0 to 50°C.

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MAIN FEATURES
MAIN FEATURES
• Simultaneous pH, EC or TDS and temperature
measurements on a large three line LCD display
• Selectable temperature unit (°C or °F)
• pH electrode condition indicator
• mV of pH measurement for electrode check
• Last calibration points pH and EC
• HI12883 dedicated pH and EC probe with integrated
temperature sensor
• Probe quick connect system
• Battery life indication and low battery detection
• Auto‑off function
• Keystroke confirmation tone
• Waterproof casing IP67

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SPECIFICATIONS
HI991300
Range*
‑2.00 to 16.00 pH / ‑2.0 to 16.0 pH
±825 mV (pH‑mV)
0 to 3999 μS/cm**
0 to 2000 ppm
‑5.0 to 105.0 °C / 23.0 to 221.0 °F
Resolution
0.01 pH / 0.1 pH
1 mV
1 μS/cm
1 ppm (mg/L)
0.1 °C / 0.1 °F
Accuracy
@ 25°C/77°F
±0.02 pH / ±0.1 pH
±1 mV (pH‑mV)
±2% F.S. (EC/TDS)
±0.5 °C / ±1.0 °F Temperature
Temperature
compensation
pH ‑ Automatic
EC/TDS ‑ Automatic, with βselectable from
0.0 to 2.4 %/ °C (0.1 increments)
pH calibration
Automatic, 1 or 2 points choice between
2 sets of buffers (standard: 4.01,7.01,
10.01 pH or NIST: 4.01,6.86,9.18 pH)
EC/TDS
calibration
Automatic, one‑point at 1413 μS/cm or
1382 ppm (CONV=0.5) or
1500 ppm (CONV=0.7)
TDS conversion
factor
Selectable from 0.45 to 1.00
(0.01 increments)
Probe (included) HI12883 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”)
Weight
(with batteries) 196 g (6.91 oz.)
Casing ingress
protection rating IP67
* the HI12883 is limited to be used from 0 to 13 pH and from 0 to
50 °C (32 to 122 °F)
** LCD displays μS for μS/cm
SPECIFICATIONS

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SPECIFICATIONS
HI991301
Range*
‑2.00 to 16.00 pH / ‑2.0 to 16.0 pH
±825 mV (pH‑mV)
0.00 to 20.00 mS/cm**
0.00 to 10.00 ppt
‑5.0 to 105.0 °C / 23.0 to 221.0 °F
Resolution
0.01 pH / 0.1 pH
1 mV
0.01 mS/cm
0.01 ppt (g/L)
0.1 °C / 0.1 °F
Accuracy
@ 25°C/77°F
±0.02 pH / ±0.1 pH
±1 mV (pH‑mV)
±2% F.S. (EC/TDS)
±0.5 °C / ±1.0 °F Temperature
Temperature
compensation
pH ‑ Automatic
EC/TDS ‑ Automatic, with βselectable from
0.0 to 2.4 %/ °C (0.1 increments)
pH calibration
Automatic, 1 or 2 points choice between
2 sets of buffers (standard: 4.01,7.01,
10.01 or NIST: 4.01,6.86,9.18)
EC/TDS
calibration
Automatic, one‑point at 12.88mS/cmor
6.44 ppt (CONV=0.5) or
9.02 ppt (CONV=0.7)
TDS conversion
factor
Selectable from 0.45 to 1.00
(0.01 increments)
Probe (included) HI12883 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”)
Weight
(with batteries) 196 g (6.91 oz.)
Casing ingress
protection rating IP67
* the HI12883 is limited to be used from 0 to 13 pH and from 0 to
50 °C (32 to 122 °F)
** LCD displays mS for mS/cm

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DISPLAY DESCRIPTION
DISPLAY DESCRIPTION
1 EC 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 Tertiary LCD
14 Meter modes indicator

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OPERATIONAL GUIDE
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“).
CONNECTING THE ELECTRODE
With the meter turned off, connect the HI12883 probe to 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.
TURNING 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.
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.
Battery life
Measurement
mode
LCD
check up
→ →
→
Electrode
check
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 tertiary LCD.
- If the probe is not compatible “WRONG” ”PROBE“
message appears alternatively on the tertiary LCD line
with “---“ blinking on the first LCD line.
OPERATIONAL GUIDE

11
- Compatible pH probe: HI12963, HI12943, HI10483 pH
probes and HI763003 EC probe. If one of the probes is
detected “NoEC“ message is displayed or if HI763003 is
connected “NopH“ message is displayed at start-up and
“---“ message is displayed on the secondary LCD for the
pH probes or on the primary LCD for the EC probe.
- If the readings are out of range, the nearest range limits
are displayed blinking (e.g. -2.00 pH -5.0 °C).
SELECTING MEASUREMENT RANGE
While in measurement mode, press the SET button to select
EC, TDS or mV of pH measurement on the secondary LCD.
FREEZING MEASUREMENT VALUES
While in measurement mode, press and hold the SET
button until “HOLD“ appears on the tertiary LCD line. The
“HOLD” remains for 1 second and readings will be frozen
on the LCD with “H” blinking..
→
Press any button to resume active measurements.
ENTERING CALIBRATION MODE
Press and hold the button until ”POWER” and tag
is replaced by “PH STD“, tag or “EC STD“,
tag if standard calibration is selected from setup menu.
Release the button.
ENTERING SETUP MODE
Press and hold button until “EC STD“ and tag is
replaced by “SETUP“ and tag. Release the button.
TURNING THE METER OFF
Whileinmeasurement mode,pressthe button.”POWER”
and tag will appear. Release the button.
OPERATIONAL GUIDE

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OPERATIONAL GUIDE
pH MEASUREMENT & CALIBRATION
Make sure the meter has been calibrated before use.
If the probe is dry, soak it in HI70300 storage solution
for 30 minutes to reactivate it. If
soiled, 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 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 tertiary LCD line
displays the sample temperature. If measurements are
taken in different samples successively, rinse the probe tip
thoroughly in distilled or deionized water 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:
a) whenever the pH electrode is replaced.
b) after testing aggressive chemicals.
c) when high accuracy is required.
d) at least once a month.
e) after cleaning the sensor.
pH calibration
Select calibration type “STD“ . Place
the sensor into the first calibration buffer.
If performing a two‑point calibration, use
pH 7.01 (pH 6.86 for NIST) buffer first.
The meter will enter the calibration mode, displaying “pH 7.01
USE” and tag blinking (or “pH 6.86 USE” for NIST).
Follow directions for single and two‑point calibration below:
Single-point calibration
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

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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 (or pH 6.86 for NIST), 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 (or pH 9.18 for NIST) buffer the
”SAVE” message is displayed and the meter returns to pH
measurement mode.
Two-point calibration
Proceed with steps 1 through 3 under single‑point
calibration using 7.01 pH (pH 6.86 for NIST) buffer first.
Then follow steps below:
The ”pH 4.01 USE” message is then displayed.
Place the probe in the second calibration buffer (pH 4.01
or 10.01, or, if using NIST, pH 4.01 or 9.18). 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.
For better accuracy it is always recommended to carry out
a two‑point calibration.
After the calibration procedure has been completed, the
“CAL“ is turned on together with the calibrated points.
Exiting calibration and resetting 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 “CAL“ with the calibrated
points on the LCD disappears.
OPERATIONAL GUIDE

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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
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 pH 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 reading
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 and then hydrated in
storage solution for a minimum of 30 minutes before
calibrating the probe.
EC MEASUREMENT AND CALIBRATION
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
beaker or container to remove air bubbles that may be
trapped inside the tip. Wait for a few minutes for the
temperature sensor to reach thermal equilibrium, when
the tag disappears. The LCD displays the EC or TDS
OPERATIONAL GUIDE

15
value (automatically compensated for temperature) on the
secondary LCD, while the third line LCD displays the sample
temperature.
EC calibration
Before calibration, rinse the sensor tip with a heavy stream
of purified water then shake excess water from the probe.
Select calibration type “EC STD“ . The meter enters
the calibration mode and “μS 1.41 USE” (HI991300) or
“mS 12.88 USE“ (HI991301) is displayed with tag
blinking. Immerse the probe in 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 or the reading 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 “CAL“ and
is displayed.
Note: - βshould be set to 1.9 during calibration.
- There is a known relationship between the EC and
TDS readings, it is not necessary to calibrate the meter
in TDS. The meter will allow a calibration in TDS using
HI70032 or HI70038 TDS calibration solution.
Exiting calibration and resetting default values
After entering the calibration mode and before the 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 point is accepted.
The LCD displays “CLEAR“ for 1 second, the meter resets
to the default calibration and the “CAL“ and on the
LCD disappear.
OPERATIONAL GUIDE

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METER SETUP
Setup mode allows the selection of the Temperature unit,
Auto‑off, Beep confirmation tone, the type of pH buffer set,
the pH Resolution, enable/disable calibration information
display, temperature compensation factor for EC and TDS
conversion factor. To enter Setup mode press and hold
button until “EC STD“ and tag is replaced by
“SETUP“ and tag. Release the button.
• “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 navigate through
the auto‑off choices: 8 minutes (“8”,
default value), 60 minutes (“60”) or
disabled (“---”). Press to confirm
and to enter the “BEEP“ selection.
• To switch the beep tone ON or OFF,
press the SET button; press to
confirm and to enter the calibration
buffer selection “pH 7.01 BUFF“.
• To change the buffer set, the meter
will show the current buffer set: “pH
7.01 BUFF” (for standard buffer
set: 4.01/7.01/10.01) or “pH
6.86 BUFF” (for NIST buffer set:
4.01/6.86/9.18). Change the set with the SET button.
Press to confirm and to enter pH resolution selection
“RESOL“.
• To change the pH measurement
resolution between “0.1“ and “0.01“
use the SET button; then press to
confirm and to enter electrode calibration
information “INFO“ selection.
METER SETUP

17
METER SETUP
• To switch the electrode condition
indicator ON or OFF on the LCD,
press the SET button; press to
confirm and to enter temperature
compensation factor “BETA“.
• “BETA“ is displayed on the third LCD
line with the current temperature
compensation factor (e.g. “1.9“),
use SET button to modify the value.
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 other value use
the SET button. Press to confirm
and to return to normal mode.

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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 a few seconds then the meter powers 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.
Replace the three 1.5V AAA alkaline batteries located in
the battery compartment, observing the indicated polarity.
Replace the battery cover making sure that the gasket is
in place.
BATTERY REPLACEMENT

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ACCESSORIES
ACCESSORIES
HI12883
pH and Conductivity (EC & TDS) probe with
built‑in temperature sensor, DIN connector
and 1 m (3.3’) cable
HI7004M pH 4.01 buffer solution, 230 mL
HI7006M pH 6.86 buffer solution, 230 mL
HI7007M pH 7.01 buffer solution, 230 mL
HI7009M pH 9.18 buffer solution, 230 mL
HI7010M pH 10.01 buffer solution, 230 mL
HI7030M 12880 μS/cm conductivity standard,
230 mL
HI7031M 1413 μS/cm conductivity standard, 230 mL
HI7032M 1382 mg/L (ppm) TDS calibration solution,
230 mL
HI70038P 6.44 g/L (ppt) TDS calibration solution,
20 mL sachets (25 pcs.)
HI70300M Storage solution for pH and ORP electrodes,
230 mL
HI700601P pH and ORP electrode cleaning solution,
20 mL sachet (25 pcs.)
HI710028 Orange silicon rubber boot
HI710142 Black carrying case for HI991XX portable
instruments
HI77400P Calibration kit (pH 4.01 and pH 7.01,
20 mL sachets, 5 pcs. each)

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Code and serial
number on the
other side
Reference
junction
Quick connector with
Rubber protection, and
1 meter cable
EC/TDS cell
pH bulb
Temperature sensor
ACCESSORIES