HI6221 Advanced pH/ORP Benchtop Meter Laboratory Measure pH/mV (pH) or mV/Rel. mV (ORP) with Temperature HI6221 is a streamlined benchtop meter with a large touch screen display, comprised of a housing and an integrated pH / ORP measurement module. Compact and easy to operate, the benchtop meter is delivered with Hanna Instruments HI1131B double junction combination pH electrode, together with HI7662-TW temperature probe. HI1131B is a glass body, 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 HI1131B 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. HI7662-TW stainless steel temperature probe allows the meter to automatically temperature compensate (ATC) pH measurements.     This system responds to a complex range of measurement and monitoring requirements, providing accuracy, reproducibility, and reliability. HI6221 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 o 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 (Hanna and NIST 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     Customize calibration options such as Last Calibration, Automatic, semi-automtic or manual calibration, First Calibration Point, daily or periodic Calibration Reminder, and buffer Groups.     Capacitive touch screen with multi-touch support The benchtop unit has a 7-inch color display with 800 x 480p resolution. The capacitive, multi-touch screen supports video playback and data plotting. 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. Measurement setup menu Opens sensor setup parameters. 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.   HI6221 is supplied with: HI1131B pH electrode; HI7662-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.) HI700601 electrode cleaning solution sachet (2 pcs.) HI7082 3.5M KCl electrolyte solution (30 mL) HI764060 electrode holder Capillary pipette 24 VDC power adapter USB-C to USB-A cable Quick reference guide with instrument quality certificate.     More Information SKU HI6221 Product Name Advanced pH/ORP Benchtop Meter- HI6221 Quote Required Yes pH Range -2.0 to 20.0 pH; -2.00 to 20.00 pH; -2.000 to pH Range 20.000 pH pH Resolution 0.1 pH; 0.01 pH; 0.001 pH pH Accuracy ±0.1 pH; ±0.01 pH; ±0.002 pH (±1 last significant digit) mV Range ±2000.0 mV mV Resolution 1 mV; 0.1 mV 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 Temperature Resolution 0.1 °C / 0.1 °F / 0.1 K Temperature Accuracy ±0.2 °C / ±0.4 °F / ±0.2 K Relative mV offset range ±2000.0 mV pH Calibration Calibration points Up to 5 pH Calibration Type Automatic; Semiautomatic; Manual pH Calibration Standard buffers Hanna and NIST pH Calibration Standard buffers pH 1.68, 3.00, 4.01, 6.86, 7.01, 9.18, 10.01, 12.45'' pH Calibration Custom buffers Up to 5 pH Calibration Custom group Up to 5 pH Calibration 1st calibration point Offset or Points (user setting) pH Calibration Reminder Disabled pH Calibration Reminder Daily pH Calibration Reminder Periodic Temperature Compensation Automatic or Manual Reading Modes Direct; Direct/Autohold Reading Stability criteria Accurate; Medium; Fast Reading Isopotential 7.000 or 4.010 Reading Sampling rate 1000 ms pH Views Basic Measurement (pH, mV, Rel.mV, Abs.mV) pH Views Basic Temperature, Stability status pH Views Simple GLP Basic view information pH Views Simple GLP Last calibration date, electrode offset, average slope, and electrode condition pH Views Full GLP Simple GLP information and calibration point details pH Views Table Measurements updated every second are displayed in table pH Views Graph (Plot) pH (or mV) and temperature versus time graph can be panned or zoomed (pinch-to-zoom technology) Logging Type Automatic, Manual, Autohold Logging Number of records 50 000 maximum per file / Stores at least 1 000 000 data points per user'' Logging Automatic interval 1, 2, 5, 10, 30 seconds Logging Automatic interval 1, 2, 5, 10, 15, 30, 60, 120, 150, 180 minutes'' Logging Sample ID Incremental mode Logging Export option .csv file format Logging Export option Users Up to 9 users and admin. account (default) Connectivity USB-A 2 ports for keyboard input or USB thumb drive Connectivity USB-C 1 port for PC connectivity and USB-C type thumb drive Connectivity Wi-Fi & Ethernet FTP / Web server Log transfer and download Email Connectivity 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 (2.65 lbs.)   read more