HI-6221 Advanced pH ORP benchtop meter

HI-6221 Advanced pH ORP benchtop meter

HI-6221 is a streamlined benchtop meter with a large touch screen display, comprising housing and an integrated pH/ORP measurement module.

Compact and easy to operate, the benchtop meter is supplied with a Hanna HI-1131B double junction combination pH electrode, together with a HI-7662-TW temperature probe.

HI-1131B is a glass bodied, double junction, refillable pH electrode with an indicating sensor made of High Temperature (HT) glass. The double junction reference and HT glass design allow the HI-1131B to be used in a wide variety of applications, including samples with metals and elevated temperatures.

Probe connection to the unit is secured through a galvanically isolated BNC connection.

HI-7662-TW stainless steel temperature probe allows the meter to automatically temperature compensate (ATC) pH measurements.

HI-6221 is supplied with an electrode holder that has a flexible arm. The holder can be mounted quickly and provides secure support for electrodes while taking measurements in sample containers.

User interface

• 7-inch capacitive touch screen with multi-touch support
• Capacitive touch back, home and system menu keys
• User-friendly icons and symbols allow users to easily navigate and interpret the instrument functions.
• The user can select between five different views:
  • Basic measurement configuration
  • Simple GLP with calibration information
  • Full GLP with electrode status and calibration point details
  • Live updated, interactive graph
  • Tabulated data with date, time, and notes

Measurement

• Measure pH/mV (pH) or mV/Rel. mV (ORP) with temperature
• Application-specific profiles allow quick and direct measurement without the need to update the sensor and system settings
• Active log during measurement
• Measurement stability indicator (using the Stability Criteria setting)
• Reading modes: direct and direct/autohold
• Temperature compensation can be Automatic (using temperature probe) or set manually
• Audible and/or alarm messages for measurements outside of predefined limits
• Galvanic isolation for pH/ORP measurement

Calibration

• 5-point pH calibration with automatic recognition for standard buffers
• Choice of standard or custom buffers for calibration
• Non-volatile memory saves data and settings

Logging

• Data log collection of at least 1,000,000 data points (with time and date stamp)
• Logging types: manual, automatic, autohold
• Sample ID for manual and Autohold data

Connectivity features & services

• Transfer logged data to a USB thumb drive
• Log files that include measurements and calibration data (as .csv file)
• FTP and email for log export via Ethernet and Wi-Fi connection
• USB type A for USB stick, keyboard, and printer
• USB type C for USB stick and PC connection

Help section for meter guidance

• Video support presentation of main functionalities

Guide to meter

1. Capacitive touch screen with multi-touch support

The benchtop unit has a 7-inch colour display with 800 x 480p resolution. The capacitive, multi-touch screen supports video playback and data plotting.

2. Back key

3. Home key

4. System Menu key

This key will enter the system menu where User accounts, System Settings, and Logging can be configured. The Help menu is also accessed on the system menu screen.

5. Stability indicator

6. Current date

7. Current time

8. pH reading

9. mV reading

10. pH electrode icon

11. Calibration information:

Electrode condition, Offset, Slope, Date and Time

12. Buffer trays

13. Temperature reading and Temperature compensation status

14. Measurement setup menu

Opens sensor setup parameters.

15. User name (default shown)

16. Direct/Autohold Readings:

When Direct/Autohold is selected, measurement reading is held on display when measurement stability is reached. This option removes the subjective nature of stability as a measurement that has not reached equilibrium will not be used.

When not selected, sample measurements are displayed continuously.

17. Logging space availability

18. Logging start

19. USB connection status

20. Peripheral connection status

21. Wireless network connection status

Key features

Users

Custom Users

New administrator or standard user accounts can be created. Standard accounts can be configured for specific accessibility.

User Account Management

Administrators can create and manage accounts from the Account Management Screen.

Settings

Network Screen

Determine how measurement logs are shared though network settings. Users can select network to be connected via Ethernet or Wi-Fi, or Disabled.

Connect and Print Screen

Activate connectivity options to allow the meter to connect to other devices.

• FTP access to meter, permits log file transfer to a FTP site and to connect the meter FTP server to a client for log download.
• Meter web server, permits log file download to a web client.
• Sending emails, permits log files to be transferred by email.

System Screen

The system screen enables users to configure options such as: Time, Date, Language, Meter ID, Decimal Separator, Backlight Saver, Audible signals, Startup Tutorial, and Factory Settings restore.

Custom Users

New administrator or standard user accounts can be created. Standard accounts can be configured for specific accessibility.

User Account Management

Administrators can create and manage accounts from the Account Management Screen.

Info Screen

Displays information on meter, channel serial number, and Wi-Fi firmware version.

Log recall

Log History and Sharing

Allows users access and management (selection, deletion, and sharing) of measurement data. Only the user who generated the data has access to the logs created by that user. Data can be viewed tabulated (complete with date, time, and notes), or plotted (as graph). Log files can be shared via USB, FTP, web server and email.

Log Detail

Tapping the information icon displays log details such as user and profile name, instrument name and serial number, channel, lot information, as well as GLP data.

On-board Help

The HELP menu supports users with a brief overview of the system’s main functionalities through text and video tutorials.

Measurement set up configuration

Calibration

Customise calibration options such as last calibration, automatic, semi-automatic or manual calibration, first calibration point, daily or periodic calibration reminder, and buffer groups.

Buffer groups

This option allows the user to select buffers in use for calibrating a pH electrode when using the automatic calibration type.

Custom Buffers

Custom buffers can be created.

Reading

Customise measurement options such as parameter, resolution, stability criteria, reading mode.

Temperature

Customise temperature options such as automatic or manual temperature source, °C, °F, or K temperature unit, manual temperature input, Isopotential Point.

Alarm configuration

Alarm configuration allows users to set the high and low threshold limits for the measured parameters. When the parameter is enabled and the measurement exceeds the high-limit value or drops below the low-limit value, the alarm is triggered and will appear on the message banner along with an audible alarm (if alarm beepers is enabled).

Logging

Logging Type Automatic, Manual or Autohold), Sampling Period (Automatic), File Name (Manual and Autohold), and Sample ID (Manual and Autohold) can be configured under this option menu.

Profiles

A profile is a sensor setup complete with required measurement unit, temperature unit, display preference, and alarm threshold options. Once saved the profile can be loaded for applications that require similar configurations.

Buffer groups

This option allows the user to select Buffers in Use for calibrating a pH electrode when using the Automatic calibration type.

Calibration

Customise calibration options such as last calibration, automatic, semi-automatic or manual calibration, first calibration point, daily or periodic calibration reminder, and buffer groups.

Views

View Configuration

This screen allows users to select the preferred display configuration.

• pH options: Basic, Simple GLP, Full GLP, Graph, Table
• mV options: Basic, Graph, Table
• Rel. mV options: Simple GLP, Basic, Graph, Table

Basic View

Basic screen displays the measured value, measurement unit as well as temperature source.

Simple GLP View

In addition to data displayed when basic option is selected, Simple GLP screen also displays: last calibration date and time, Offset value, average slope (Avg. Slope), and electrode condition (Condition).

Full GLP View

In addition to data displayed when Simple GLP option is selected, Full GLP screen also displays: electrode symbol, used buffers trays together with calibration date, time, and temperature probe status.

Graph View

When Graph is selected, the measured value is plotted as a graph.

Table

When Table is selected, the measured values are displayed tabulated (complete with date, time, and notes made during logging). The newest data is displayed on the top of the table.

Electrode Holder

HI-6221 is supplied with the HI-764060 electrode holder featuring a flexible arm. The holder can be mounted on either side quickly and provides secure support for electrodes while taking measurements in sample containers.