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Hanna Instruments Inc., 584 Park East Drive, Woonsocket, RI 02895  USA

 

www.hannainst.com

Dear Customer, thank you for choosing Hanna Instruments.

Package contents

• 

HI6221

HI1131B

 pH electrode, 

HI7662-TW

 temperature probe

• pH 4.01 buffer solution (2 sachets)

• pH 7.01 buffer solution (4 sachets)

• pH 10.01 buffer solution (2 sachets)

• Electrode cleaning solution (2 sachets)

For laboratory and industrial use only.
Store at room temperature. 

For laboratory and industrial use only.
Store at room temperature. 

±0.01 pH @ 25 °C (77 °F)

NIST Traceable Buffer Solution

±0.01 pH @ 25 °C (77 °F)

NIST Traceable Buffer Solution

Buffer Solution

Buffer Solution

pH 4.01

pH 4.01

HI7007

HI7007

20 mL

  

For laboratory and industrial use only.
Store at room temperature. 

±0.01 pH @ 25 °C (77 °F)

Buffer Solution

pH 7.01

HI7007

20 mL

  

For laboratory and industrial use only.
Store at room temperature. 

±0.01 pH @ 25 °C (77 °F)

Buffer Solution

pH 10.01

HI7010

20 mL

  

For laboratory and industrial use only.
Store at room temperature. 

Cleaning

HI700601

20 mL

Electrode Cleaning Solution

for General Use

• 3.5M KCl electrolyte fill solution (30 mL) & capillary pipette (1 pc.)

    

• Electrode arm with base plate and screw (mounting)

  

• 24 VDC power adapter and USB-C to USB-A cable

  

• Probe quality certificates, instrument quality certificate,  

quick reference guide

 

 

 

Getting started

Identify the base plate (1) – to be attached to the 

L

 or the 

R

 side – 

and mounting screw (2) and proceed as illustrated here. 

R

L

2

1

With the arm holder (3) in position and the pH electrode (4) and 

temperature probe (5) plugged in, connect the power cable (6) and 

plug into the mains. Press the ON/OFF button (7) to start.

Remove the transparent film that protects the capacitive touchscreen 

prior to operating the meter.

HI6221  pH/ORP

pH/ORP

Temp.

Ref.

Ethernet

Extension

USB-A

USB-C

ON/OFF

Power

24Vdc

6

7

5

4

3

Operating language & Access to support

• At first power on default operating language is English. Browse 

the language window and select operating language from list of 

supported options.

• To access support, tap 

  and select 

.

On first access the benchtop’s name is used as default user name 
and no password is required.

Device handling & Safety precautions

• Transport the unit with all cables removed

• Do not puncture the capacitive touchscreen

• Do not insert objects into the ports, spaces around keys other 

than the intended cable, USB drive

Hanna

®

 is committed to developing and deploying digital 

solutions with a positive impact on the environment and climate.

Please scan the QR code or follow the link to download 

the user manual.

https://manuals.hannainst.com/HI6221

HI6221 

Advanced 

pH

 & 

ORP

 Benchtop Meter

Quick Reference Guide

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