Advanced pH/Orp/ Temperature Benchtop Meter

HI-6221 Advanced pH/ORP Benchtop Meter

The HI-6221 pH and ORP Meter from Hanna Instruments is a modern, efficient solution for benchtop measurements within laboratories. This sleek, practical laboratory-grade meter includes multiple time-saving features, including on-screen tutorials, practical data transfer over WiFi and ethernet and a user-friendly interface for ease of use.

This research-grade pH and ORP meter is supplied with the Hanna HI-1131B double junction combination pH electrode, a glass-bodied refillable pH electrode that is made from high-temperature glass to provide accurate, reliable pH measurement across a wide range of samples, including metals and samples that have elevated temperatures.

The HI-7662-TW temperature probe is also supplied with the HI-6221 ORP and pH meter, allowing for the automatic compensation of pH measurements for exceptional accuracy and repeatability.

Key Features

Modern, practical design

The HI-6000 series meters are designed to fit into modern laboratories. A simple, streamlined casing and a large capacitive touch screen that works even with gloves on make this advanced pH meter easy and practical to use. The small footprint of the meter series and the ability to switch the placement of the electrode arm provides the flexibility to place the HI-6221 anywhere in the lab.

Five-point calibration with automatic recognition

5-point calibration is available as standard with this laboratory pH meter, with the choice of standard or custom buffer for calibration and automatic recognition of standard buffers for efficient, practical calibration. An in-built non-volatile memory saves both data and settings.

Supplied with Hanna laboratory-grade probes and electrodes

The HI-6221 pH and ORP bench meter is supplied with both a pH electrode and temperature probe. The versatile HI-1131B double junction combination pH electrode provides accurate pH measurement across a wide range of applications and niches, while the HI-7662-TW stainless steel temperature probe enables automatic temperature compensation when measuring pH.

Electrode holder included

An electrode holder is supplied with the HI-6221, with the ability to mount directly to either side of the advanced meter. This purpose-built flexible arm provides secure support for both the electrode and temperature probe when measuring samples within containers.

Exceptional accuracy, excellent reliability

The HI-6221 pH meter is developed and designed specifically for laboratory use, providing exceptional accuracy with Hanna electrodes across a comprehensive pH and ORP range. Galvanic isolation allows for accurate measurement across a versatile range of samples and applications without potential interference.

Flexibility in location and configuration

WiFi and ethernet connectivity means the HI-6221 can be placed anywhere in the laboratory, with no requirement for a direct connection to a PC or printer. The moveable electrode arm included with this benchtop pH/ORP meter provides further flexibility, making it easy to adapt this meter to the changing requirements within the laboratory.

User-friendly interface

User-friendly menus and easy-to-follow settings enable users to set up the HI-6221 out of the box in minutes. A full-featured settings menu includes everything needed to customise this meter to your requirements, including:

• Network
• Connect and Print
• System
• Custom Users
• User Account Management
• Info Screen
• Log Recall
• Log History and Sharing
• Log Detail
• On-Board Help

Five individual measurement views

The HI-6221 features five individual measurement views for pH and ORP measurement, including:

• Basic View: A simplified view displaying the measured value, measurement unit and temperature source.
• Simple GLP View: Additional displays of the last calibration date and time, Offset value, average slope and electrode condition.
• Full GLP View: Comprehensive display with electrode symbol and used buffers tray in addition to all of the above.
• Graph View: A simple plotted graph of the measured value
• Tabulated View: Table-style data with measured values plus date, time and any notes made during logging.

Large data storage capacity

Up to one million individual data points can be stored within the HI-6221 pH tester for laboratories, with a time and date stamp included with each data point. All data is well-organised and accessible via WiFi, ethernet or connection to a computer or printer.

Audible and visual alarm system

A built-in alarm system includes options for both audible and visual alarms, with customisable correct ranges for measurements. When a measurement exceeds these defined limits the alarm will activate, allowing you to save time in identifying issues.

WiFi and ethernet connectivity

Share data anywhere with WiFi and ethernet connectivity, allowing data from the HI-6221 lab benchtop meter to be shared via FTP or email transfer. With in-built connectivity, it’s possible to share measurements immediately to offices, other areas of the laboratory or other sister sites without the need to connect a laptop or PC.

Simple USB C and USB A transfer

Both USB C and USB A connections are available on the HI-6221 to transfer data and connect peripherals. Transfer data using a memory stick in universal .csv format, with no additional software required to access the entirety of your logged data on any computer once it has been transferred.

On-screen tutorial system

The HI-6000 series features a comprehensive tutorial system covering the main functionalities of the benchtop meters with the HELP button. Both text and video tutorials are available, providing clear instructions to reduce the learning curve required when using the HI-6221 and other instruments within the range.

Comprehensive user functionality

Create custom users with standard or administrator accessibility, with customisable configurations to set your own accessibility requirements. Administrators can create and manage accounts directly from the Account Management Screen for easy and effective management.

FAQs

What instruments are in the HI-6000 range?

The HI-6000 range includes:

• HI-6221 pH and ORP meter
• HI-6321 Conductivity meter
• HI-6421 Dissolved Oxygen meter (also available with polarographic probe)
• HI-6000 Modular Multiparameter meter

Is the HI-6221 suitable for laboratory usage?

The HI-6221 benchtop meter is specifically designed for measuring pH in laboratory settings, both within specific industries and for laboratories that provide outsourced pH and ORP measurement services for their clients. This laboratory-level meter provides exceptional accuracy in the measurement of pH and ORP.

What are the key features of the HI-6221?

Some of the key features of the Hanna HI-6221 include:

• Five-point calibration
• WiFi and ethernet connectivity
• User-friendly interface
• Flexible, compact design
• Exceptional accuracy and repeatability

How do I order the HI-6221 benchtop pH and ORP meter?

You can buy the HI-6221 benchtop pH and ORP meter directly online here.

Can I get training on the HI-6221?

The HI-6221 features on-screen tutorials with both video and text to cover the functionality of this advanced meter.

What industries is the HI-6221 suitable for?

The HI-6221 is an ideal solution for a wide range of industries and applications. This benchtop meter is beneficial to the water industry in particular, providing accurate measurements in wastewater, water treatment and drinking water. The versatility of this pH meter and the supplied electrode allows the HI-6221 to provide precise measurements in samples of different temperatures and metals.

pH
Range	-2.0 to 20.0 pH; -2.00 to 20.00 pH; -2.000 to 20.000 pH
Resolution	0.1 pH; 0.01 pH; 0.001 pH
Accuracy	±0.1 pH; ±0.01 pH; ±0.002 pH (±1 last significant digit)
mV
Range	±2000.0 mV
Resolution	1 mV; 0.1 mV
Accuracy	±0.2 mV ±1 last significant digit
Temperature
Range	-20.0 to 120.0 °C; -4.0 to 248.0 °F; 253.0 to 393.0 K
Resolution	0.1 °C / 0.1 °F / 0.1 K
Accuracy	±0.2 °C / ±0.4 °F / ±0.2 K
Relative mV offset range	±2000.0 mV
pH Calibration
Calibration points	Up to 5
Type	Automatic; Semiautomatic; Manual
Standard buffers	Hanna and NIST - pH 1.68, 3.00, 4.01, 6.86, 7.01, 9.18, 10.01, 12.45
Custom buffers	Up to 5
Custom group	Up to 5
1st calibration point	Offset or Points (user setting)
Reminder	Disabled; Daily: 0 min. to 23 hours and 59 min; Periodic: 1 min. to 500 days, 23 hours and 59 min.
Temperature Compensation	Automatic or Manual
Reading
Modes	Direct; Direct/Autohold
Stability criteria	Accurate; Medium; Fast
Isopotential	7.000 or 4.010
Sampling rate	1000 ms
pH View
Basic	Measurement (pH, mV, Rel.mV, Abs.mV) Temperature, Stability status
Simple GLP	Basic view information; Last calibration date, electrode offset, average slope, and electrode condition
Full GLP	Simple GLP information and calibration point details Table Measurements updated every second are displayed in table Graph (Plot) pH (or mV) and temperature versus time graph can be panned or zoomed (pinch-to-zoom technology)
Logging
Type	Automatic, Manual, Autohold
Number of records	50,000 maximum per file; Stores at least 1,000 ,00 data points per user
Automatic interval	1, 2, 5, 10, 30 seconds; 1, 2, 5, 10, 15, 30, 60, 120, 150, 180 minutes
Sample ID	Incremental mode
Export option	.csv file format
Users	Up to 9 users and admin. account (default)
Connectivity
USB-A	2 ports for keyboard input or USB thumb drive
USB-C	1 port for PC connectivity and USB-C type thumb drive
Wi-Fi & Ethernet	FTP; Web server Log transfer and download; Email
RS232	Connecting peripherals
Power supply	DC adapter 100-240AC to 24VDC 2.5A
Environment	0 - 50 °C / 32 - 122 °F / 273 - 323 K maximum 95% RH non-condensing
Dimensions	205 x 160 x 77 mm (8.0 x 6.2 x 3.0 “)
Weight	Approximately 1.2 kg (26.5 lbs.)

Ordering Information

HI-6221 is supplied with HI-1131B pH electrode; HI-7662-TW temperature probe; pH calibration starter kit consisting of: pH 4.01 buffer solution sachet (2 pcs.); pH 7.01 buffer solution sachet (4 pcs.); pH 10.01 buffer solution sachet (2 pcs.); HI-700601 electrode cleaning solution sachet (2 pcs.); HI-7082 3.5M KCl electrolyte solution (30 mL); HI-764060 electrode holder; capillary pipette; 24 VDC power adapter; USB-C to USB-A cable; quick reference guide with instrument quality certificate.