Hanna Instruments Gro Line HALO 2 User manual

INSTRUCTION MANUAL
HI9810402
Wireless Refillable pH Tester
for Lab
with built-in general purpose electrode

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.
Thank you for choosing a Hanna Instruments product.
Please read this instruction manual carefully before using this instrument.
This manual will provide you with the necessary information for correct use of this 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] or
view our contact list at www.hannainst.com.
Dear
Customer,

3
TABLE OF CONTENTS
TABLE OF CONTENTS
1. Preliminary Examination ..................................................................................................................4
2. Specifications..................................................................................................................................4
3. General Description & Intended Use ..................................................................................................5
Operating Modes......................................................................................................................5
Probe Features.........................................................................................................................5
4. Functional Description & LCD Display.................................................................................................5
5. General Operations..........................................................................................................................6
Turning the Tester On & Off .......................................................................................................6
Battery Replacement ................................................................................................................6
6. Setup .............................................................................................................................................6
Temperature Unit ....................................................................................................................6
Auto-Off Interval ......................................................................................................................6
Calibration Points.....................................................................................................................6
Buffer Set................................................................................................................................6
pH Resolution..........................................................................................................................6
Bluetooth®Wireless Mode ......................................................................................................6
Bluetooth Pairing .....................................................................................................................7
Date & Time ............................................................................................................................7
7. Bluetooth........................................................................................................................................7
8. Hanna Lab Application.....................................................................................................................7
Tag a Measurement..................................................................................................................7
9. Calibration......................................................................................................................................7
Preparation & Guidelines...........................................................................................................7
Procedure ................................................................................................................................7
Stand-Alone Tester (Up to Three-Point Calibration)......................................................................8
With Hanna Lab App (Up to Five-Point Calibration).....................................................................8
10. Care & Maintenance ......................................................................................................................9
Refilling the Electrode...............................................................................................................9
Storage ...................................................................................................................................9
11. Warning & Error Messages .............................................................................................................9
12. Abbreviations................................................................................................................................9
13. Accessories..................................................................................................................................10
Recommendations for Users.................................................................................................................10
Warranty ...........................................................................................................................................10
Certification........................................................................................................................................11
The Bluetooth®word mark and logos are registered trademarks owned by Bluetooth SIG, Inc.

4
PrELimiNAry ExAmiNATiON
1. PRELIMINARY EXAMINATION
Remove the tester and accessories from packaging and examine them carefully. For further assistance, please contact your
local Hanna Instruments office or email us at [email protected].
Each HI9810402 is supplied with a starter kit consisting of:
• pH 4.01 buffer solution, 20 mL sachet (2 pcs.)
• pH 7.01 buffer solution, 20 mL sachet (2 pcs.)
• Electrode cleaning solution, 20 mL sachet (2 pcs.)
• Electrode storage solution, 13 mL dropper bottle (1 pc.)
• Electrolyte refill solution, 30 mL
• Pipette
• 3V Lithium battery – CR2032
• Instrument quality certificate and Instruction manual
Note: Save all packing material until you are sure that the tester works correctly. Any damaged or defective item must be
returned in its original packing material with the supplied accessories.
2. SPECIFICATIONS
Range
pH 0.00 to 14.00 pH
mV * pH/mV conversion
Temperature** –5.0 to 80.0 °C (23.0 to 176.0 °F)
Resolution
pH 0.01 or 0.1 pH
mV * 0.1 or 1 mV
Temperature 0.1 °C; 0.1 °F
Accuracy pH ±0.02 pH
Temperature ±0.5 °C; ±0.9 °F
Calibration
Up to three points or five points *
Automatic buffer recognition with Standard buffers
Hanna (pH 1.68 *, 4.01, 7.01, 10.01, 12.45 *) or
NIST (pH 1.68 *, 4.01, 6.86, 9.18, 12.45 *)
Temperature compensation Automatic (ATC) or Manual (MTC) *
Electrode
Body material Glass
Glass High Temperature (HT)
Junction Ceramic
Reference cell Double, Ag/AgCl
Electrolyte 3.5M KCl (refillable)
Tip / Shape Spheric, Ø 9 mm (Ø 0.35”)
Outer diameter 12 mm (0.47”)
Length 120 mm (4.7”)
Battery type 3V Lithium – CR2032
Battery life Approximately 1000 hours (500 hours with Bluetooth enabled)
Environment 0 to 50 °C (32 to 122 °F)
Casing IP65 ingress protection
Dimensions / Weight 51 x 206 x 21 mm (2.0 x 8.1 x 0.8“) / 60 g (2.1 oz.)
* Available with Hanna Lab App
** Measuring outside the recommended operating temperature range may damage the gel electrolyte and void product warranty.
Note: The tester can display measurements from –2.00 to 16.00 pH. Measurements outside of the pH range will flash. In this
case assess the integrity of the tester and the type of measured sample.

5
GENErAL DESCriPTiON & iNTENDED USE
3. GENERAL DESCRIPTION & INTENDED USE
HI9810402 is a professional wireless pH tester, part of Hanna Instruments HALO2 family.
• The integrated Bluetooth module allows the tester to be connected to a compatible smart device with the Hanna Lab App.
• The tester has a compact, waterproof casing, and automatic pH calibration at up to three points, or five points when
used with the Hanna Lab App.
• Automatically compensated temperature readings are displayed on a large LCD.
• Accurate and easy to use, the tester is ideal for measurements in samples that would challenge standard design pH
electrodes.
Operating Modes
The HI9810402 can be used as a stand-alone pH tester or connected to the Hanna Lab App.
The Hanna Lab App turns a compatible smart device into a full-featured pH meter. Features include: electrode condition,
GLP with time-stamp, live-readings, mV resolution, manual temperature compensation, stability criteria, calibration reminder,
pH (mV) and temperature alarms, tester ID, and data sharing.
Probe Features
The HI9810402 features a non-porous glass body that is easy to clean and withstands harsh chemicals.
The double junction design presents a silver-free electrolyte solution interacting with the sample, making the electrode
less susceptible to clogging and guaranteeing a fast response and stable reading.
Built-in temperature sensor at the tip of the pH electrode allows for rapid determination of the sample temperature and
a high-accuracy temperature reading.
4. FUNCTIONAL DESCRIPTION & LCD DISPLAY
Front & Back view
HI9810402
pH Tester
LCD ON/OFF
button
pH sensitive
bulb
Ceramic junction
Maximum immersion level
Recommended immersion
pH Probe
Refill cap
SN: XXXXXXXXX
Made in Romania
HI9810402
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Setup
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Battery cover
LCD display
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1 Calibration indicator
2 Stability indicator
3Battery percentage indicator
4 Battery icon
5 Bluetooth icon
6 Temperature compensation
7Second LCD line
8 Temperature unit
9 First LCD line
10 Measurement unit

6
GENErAL OPErATiONS
5. GENERAL OPERATIONS
Turning the Tester On & Off
• Turn the tester face down on a clean, dry surface. Rotate the battery cover on the back of the tester counterclockwise and
set it aside. Remove the battery insulation film.
• Pressthe ON/OFF button to turn the tester on or off. Initialization screen displays all LCD segments, followed by the
battery percentage. The tester enters measurement mode. Before the tester turns off, “OFF PWR” is displayed briefly.
• Press and hold the ON/OFF button to turn the tester off when connected to Bluetooth.
Battery Replacement
1. Turn off the tester. Turn the tester face down and rotate the battery cover counterclockwise.
2. Set the battery cover aside. Press the metallic pin to push old battery out.
3. Place the new battery with positive (+) sign facing out.
4. Reset the date and time in setup, or connect to the Hanna Lab App to update it automatically.
5. Align the mark on the cover with the open lock icon ( ) on the case. Rotate the cover
clockwise until the mark on the cover aligns with the closed lock icon ( ).
Note: Only use specified battery type. Dispose of old battery in accordance with local regulations.
6. SETUP
The Setup button is located inside the battery compartment. After Setup configuration, replace the cover.
Setup Menu Navigation
• Press the Setup button to enter Setup mode and navigate menu items.
• To exit Setup mode, press the Setup button after “SEt TIME” option is displayed.
• Press the ON/OFF button to configure menu item options.
Temperature Unit
Option: °C or °F
Press ON/OFF button to select desired
temperature unit.
°C
TEMP
°F
TEMP
Auto-Off Interval
Option: 8, 60 min., or “----” (disabled)
Press ON/OFF button to select desired interval.
To save battery life, after the selected auto-off
8
AOFF
60
AOFF
----
AOFF
interval has elapsed, the tester will automatically turn off.
Calibration Points
Option: 2P or 3P
Press ON/OFF button to select between up to
two- or up to three-point calibration.
2P
CAL
3P
CAL
Buffer Set
Option: 7.01 pH (Hanna) or 6.86 pH (NIST)
Press ON/OFF button to select the calibration
buffer set (Hanna or NIST).
7.01
BUFF
6.86
BUFF
pH Resolution
Option: 0.01 pH or 0.1 pH
Press the ON/OFF button to select resolution. 0.01
RES
0.1
RES
Bluetooth Wireless Mode
Option: On, PAIr, or OFF
Press ON/OFF button to select Bluetooth
option at start-up. &
On
BLU &
PAIr
BLU &
OFF
BLU
Metallic pin

7
BLUETOOTh
Bluetooth Pairing
Option: dEL PAIr
Press ON/OFF button to delete saved paired
device. &
dEL
PAIR
Date & Time
Option: SEt TIME
Press ON/OFF button to set the date and time.
Option: YEAR, MO, DAY, HOUR, and MIN
2021
YEAR
3
MO
15
DAY
Use the Setup button to select the option and press the ON/OFF button to change the selected option.
7. BLUETOOTH
With “PAIr BLU” or “On BLU” selected in Setup, the Bluetooth icon (&) will blink for up to 45 seconds, indicating
the tester is in discoverable mode. Once connected, the icon will stop blinking. If not connected, the icon is not displayed.
• Select “OnBLU”, to enable Bluetooth without bonding.
• Select “PAIrBLU”, to enable Bluetooth with bonding. A 6-digit bonding pin is displayed the first time the tester and
smart device are paired. Once the devices are paired, the bonding pin is not required when reconnected.
• Select “OFFBLU”, to disable Bluetooth.
• Select “dEL PAIR”, to delete all paired devices. If PAIr BLU is enabled, a bonding pin will need to be re-entered.
8. HANNA LAB APPLICATION
• The Hanna Lab App is available on the App Store®and on Google Play.1
• Consult the Help section of the application for information on calibration, measurement, data logging, and sharing.
• When the tester is in discoverable mode, it will appear in the list of “Available Devices”.
• Within the application, tap “Connect” to pair the tester with the device. All readings are transmitted directly to the application.
Tag a Measurement
Once connected to the application, the ON/OFF button can be pressed to tag the current reading.
• Press the ON/OFF button from measurement mode. The display shows “SEt TAG”, followed by “-TAG”.
• The reading on the application will flash green and the note icon ( ) will be displayed. Tap the note icon ( ) to
add an annotation.
&
10.12
25.6 &
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TAG
9. CALIBRATION
Preparation & Guidelines
1. Unscrew the top collar to vent the cap before removing the probe from the plastic storage tube. Save the cap for probe
storage.
2. Rinse off any storage solution or salts that may be on the body.
3. Verify there is solution inside the pH bulb by shaking the probe down to restore continuity as the solution may have
moved up the stem during shipping.
4. For best results, use a rinse beaker and a separate calibration beaker for each buffer. Discard rinsing buffers after use.
Procedure
For most applications it is recommended to start with pH 7.01 buffer (or pH 6.86).
To restore factory defaults, press and hold the ON/OFF button. “CAL CLR” is displayed.
Note: It is recommended to calibrate the electrode with buffers at the temperature it will be used at.
App Store is a trademark of Apple, Inc.
Google Play and the Google Play logo are trademarks of Google LLC.

8
CALiBrATiON
Stand-Alone Tester (Up to Three-Point Calibration)
1. Rinse the electrode tip with purified water and blot dry. Then rinse with the buffer being used for calibration.
2. Press and hold ON/OFF button until “CAL MODE” is displayed.
3. When “7.01 USE” or “6.86 USE” is displayed with “CAL” tag blinking, place the tip of the electrode in the
correct buffer. CAL
MODE
7.01
USE
4. When the buffer has been recognized, “REC“ is displayed.
“WAIT” is displayed with the stability indicator (#) blinking until the reading is stable. Wait until the measurement is
stored and the stability indicator disappears.
7.01
REC
#7..01
WAIT
5. To save a one-point calibration and return to measurement mode, press the ON/OFF button.
“CAL SAVE” is displayed briefly.
With 2P option selected
6. Place the tip of the electrode in the second buffer rinse beaker, then in the second calibration buffer. Wait until the
measurement is stored and the stability indicator disappears.
7. After the second point has been stored, “CAL SAVE” is displayed briefly and the tester will return to measurement
mode automatically.
With 3P option selected
6. Place the tip of the electrode in the second buffer rinse beaker, then in the second calibration buffer. Wait until the
measurement is stored and the stability indicator disappears.
7. Place the tip of the electrode in the third buffer rinse beaker, then in the third calibration buffer. Wait until the
measurement is stored and the stability indicator disappears.
8. After the third point has been stored, “CAL SAVE” is displayed briefly and the tester will return to measurement
mode automatically.
With Hanna Lab App (Up to Five-Point Calibration)
Connect the tester to the Hanna Lab App and follow the calibration procedure.
See the App Help section for the calibration procedure.

9
CArE & mAiNTENANCE
10. CARE & MAINTENANCE
• Never immerse the tester over the maximum immersion level.
• Fresh buffers should be used for each calibration. Once the sachets are opened the buffer value can change over time.
• If the electrode is slow or sluggish, soak it in cleaning solution for 20 minutes. Rinse with water and hydrate the electrode
in storage solution for a minimum of 30 minutes before calibrating.
• If measurements are taken successively, rinse the probe thoroughly in distilled or deionized water to eliminate
cross-contamination between measurements.
Refilling the Electrode
• If the filling solution (electrolyte) is more than 1 cm (½") below the fill hole, add HI7082 3.5M KCl electrolyte fill
solution for double junction electrodes.
• Unscrew the fill hole cover during measurements so the liquid reference junction maintains an outward flow of electrolyte.
Storage
To ensure a quick response, the glass tip and junction should be kept hydrated.
1. When not in use, add a few drops of storage solution to the storage cap. If storage solution is not available, pH 4.01
or pH 7.01 buffer can be used.
Note: Do not store the electrode in distilled or deionized water.
2. Place the probe tip into the cap and gently tighten the collar.
11. WARNING & ERROR MESSAGES
----
WRNG
“---- WRNG” displayed during calibration.
Invalid buffer.
Check the buffer value and use fresh buffer.
14.02
23.7
Measured value displayed blinking.
Measured value is out of electrode range.
Clean the electrode to improve condition.
!8.02
23.7
Battery icon (!) displayed blinking.
Battery is below 10 %, replace the battery.
BAtt
DEAD
“BAtt DEAD” and tester turns off.
Depleted battery, replace the battery.
12. ABBREVIATIONS
ATC Automatic Temperature Compensation
GLP Good Laboratory Practice
MTC Manual Temperature Compensation
NIST National Institute of Standards and Technology

10
ACCESSOriES
13. ACCESSORIES
Ordering Information Product Description
pH Buffer Solution
HI50016-02 pH 1.68 buffer solution, 20 mL sachet (25 pcs.)
HI70004P pH 4.01 buffer solution, 20 mL sachet (25 pcs.)
HI70006P pH 6.86 buffer solution, 20 mL sachet (25 pcs.)
HI70007P pH 7.01 buffer solution, 20 mL sachet (25 pcs.)
HI70009P pH 9.18 buffer solution, 20 mL sachet (25 pcs.)
HI70010P pH 10.01 buffer solution, 20 mL sachet (25 pcs.)
HI77400P pH 4.01 & 7.01 buffer solution, 20 mL sachet (10 pcs., 5 each)
HI770710P pH 10.01 & 7.01 buffer solution, 20 mL sachet (10 pcs., 5 each)
Electrode Cleaning Solution
HI700601P Electrode cleaning solution for general use, 20 mL sachet (25 pcs.)
HI7073L Protein cleaning solution, 500 mL
HI7074L Inorganic cleaning solution, 500 mL
HI7077L Oil & Fat cleaning solution, 500 mL
Electrode Storage Solution
HI70300L Electrode storage solution, 500 mL
HI70300M Electrode storage solution, 230 mL
HI70300S Electrode storage solution, 30 mL dropper
HI9072 Electrode storage solution, 13 mL dropper
Electrode Fill Solution & Other Accessories
HI7082 3.5M KCl electrolyte fill solution for double junction electrodes (4 x 30 mL)
HI740155P Electrode refilling pipette (20 pcs.)
RECOMMENDATIONS FOR USERS
Before using this product, make sure it is entirely suitable for your specific application and for the environment in which it is
used. Any variation introduced by the user to the supplied equipment may degrade the tester’s performance. For your and the
tester’s safety do not use or store it in hazardous environments.
WARRANTY
HI9810402 is warranted for a period of one year 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, 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 tester is to be returned to Hanna
Instruments, first obtain a Returned Goods Authorization (RGA) number from the Technical Service department and then send it
with shipping costs prepaid. When shipping any product, make sure it is shipped back in compliance with shipping regulations,
thoroughly cleaned and free of any chemicals, and is properly packaged for complete protection.
MAN9810402 10/21-1
Hanna Instruments reserves the right to modify the design, construction or appearance of its products without advance notice.