Hanna Instruments HI5421 Research Grade Bench Meter 6 User Guide

June 2, 2024
HANNA instruments

Hanna Instruments HI5421 Research Grade Bench Meter 6

Product Information

Specifications:

  • Model: HI5421
  • Type: Bench Meter
  • Measurement Parameters: Dissolved Oxygen, BOD
  • Display: Color Graphic LCD
  • Connectivity: USB port
  • Logging Capacity: Up to 100 lots with 50,000 records max/lot
  • Salinity Compensation Range: 0 to 45 g/L

Product Usage Instructions

Customizable User Interface

The HI5421 allows users to display measurements in various modes including basic measurement, real-time graphing, and data logging.
Calibration stability criteria can be adjusted for accuracy.

Color Graphic LCD
The color graphic LCD provides on-screen help, graphical representations, and customizable color configurations. Real-time graphing is supported, and virtual keys offer an intuitive user interface.

Capacitive Touch
The sensitive capacitive touch buttons ensure accurate navigation through menus and screens. Dedicated keys for routine operations and virtual keys that adapt based on usage provide ease of operation.

Built-In Barometer
The meter compensates readings for barometric pressure with a built-in pressure transducer. Calibration of barometric pressure is simple with manual entry of the current value in various units.

Choice of Calibration
Automatic standard recognition for calibration at 0% and 100% saturation or user-defined values is available. Two-point calibration ensures accurate measurements.

BOD, OUR and Sour Measurement Modes
Additional modes allow for measuring Biological Oxygen Demand (BOD), Oxygen Uptake Rate (OUR), and Specific Oxygen Uptake Rate (SOUR) by entering values at appropriate times for automatic calculations.

Automatic Salinity Compensation
The HI5421 supports automatic salinity compensation within a selectable range, ensuring accurate measurements under varying salinity conditions.

Data Logging
Three logging modes are available: automatic, manual, and AutoHold logging. Users can log up to 100 lots with a maximum of 50,000 records per lot, totaling up to 100,000 data points.

INTRODUCTION

The HI5421 is an advanced research grade benchtop Dissolved Oxygen and BOD meter that is completely customizable with a large color LCD, capacitive touch keys, and USB port for computer connectivity. The HI5421 is rich in features including data logging, alarm limits, comprehensive GLP,and many more while retaining simplicity in use with both dedicated keys for routine operation and virtual keys that guide the user through setup options.

Customizable User Interface
The user interface of the HI5421 allows the user to show measurements in various modes: basic measurement with or without GLP information, real-time graphing, and logging data. Calibration stability criteria can be adjusted from fast, moderate, and accurate. Programmable alarm limits can be set to inside or outside allowable limits.

Color Graphic LCD
The HI5421 features a color graphic LCD with on-screen help, graphic, and custom color configurations. The display allows for real-time graphing and the use of virtual keys provide for an intuitive user interface.

Capacitive Touch
The HI5421 features sensitive capacitive touch buttons for accurate keystrokes when navigating menus and screens. There are four dedicated keys that are used for routine operations including calibration and switching measurement modes and four virtual keys that change based upon use. The capacitive touch technology ensures the buttons never get clogged with sample residue.

Built in Barometer
Readings are compensated for barometric pressure by a built in pressure transducer located in the meter. Calibration of the barometric pressure is single point with manual entry of current value obtained from local weather service or other device. Barometric pressure is displayed in a multiple choice of units including mmHg, mbar, kPa, mHg, psi, and atm.

Choice of Calibration
Automatic standard recognition is available for two points at 0% and 100% saturation or 0 mg/L and 8.26 mg/L. A user standard option is available for a user defined value.

BOD, OUR and Sour Measurement Modes
An additional three measurement modes are available to measure Biological Oxygen Demand (BOD), Oxygen Uptake Rate (OUR) and Specific Oxygen Uptake Rate (SOUR).
Simply enter values and take readings at appropriate times and the meter will automatically calculate the values.

Automatic Salinity Compensation
The HI5421 allows for automatic salinity compensation with a selectable salinity range of 0 to 45 g/L.

GLP Data
View calibration data and calibration expiration information by selecting the Good Laboratory Practice (GLP) display option. Calibration data include date, time, and calibration points.

Data Transfer
Data can be transferred to a PC with USB cable and HI92000 software (both sold separately).

Data Logging
Three selectable logging modes are available on the HI5421: automatic, manual,and AutoHold logging. Automatic and manual logs up to 100 lots with 50,000 records max/lot, with up to 100,000 total data points. Automatic logging features the option to save data according to sampling period and interval.

Contextual Help
Contextual help is always available through a dedicated “HELP” key. Clear tutorial messages and directions are available on-screen to quickly and easily guide users through setup and calibration. The help information displayed is relative to the setting/option being viewed.

DO probe included
The HI5421 is supplied with the HI76483 Clark-Type Polarographic probe. This probe is only 12 mm in diameter and has a built in thermistor temperature sensor that compensates for temperature variations from 0 to 50°C.

On-screen Features

Specifications

HI5421

DO

| Range| 0.00 to 90.00 ppm (mg/L); 0.0 to 600.0 % saturation
---|---|---
Resolution| 0.01 ppm; 0.1% saturation
Accuracy| ±1.5% of reading ±1 digit
Calibration| automatic using single or two-point calibration; user calibration single point

Barometric Pressure

| Range| 450 to 850 mmHg; 600 to 1133 mBar; 60 to 133 KPa;

17 to 33 inHg; 8.7 to 16.40 psi; .592 to 1.118 atm

Resolution| 1 mm Hg
Accuracy| ±3 mm Hg + 1 least significant digit

Temperature

| Range| -20.0 to 120°C; -4.0 to 248.0°F; 253.15 to 393.15K
Resolution| 0.1°C; 0.1°F; 0.1K
Accuracy| ±0.2°C ; ±0.4°F; ±0.2K (without probe)

Additional Specifications

|

Measurement Modes

| direct DO; BOD (biochemical oxygen demand); OUR (oxygen uptake rate); SOUR (specific oxygen uptake rate)
Temperature Compensation| 0.0 to 50.0°C; 32.0 to 122.0°F; 237.1 to 323.1 K
Salinity Compensation| 0 to 45 ppt
Barometric Pressure Calibration| single point calibration

Probe

| HI76483 thin body, polarographic dissolved oxygen probe with internal temperature sensor and 1 m (3.3’) cable (included)

Record Samples Logging

| 100,000 records storage, 100 lots each for automatic and manual logs; maximum 50,000 records/log for automatic logging
Interval Logging| fourteen presets selectable between 1 second and max log time of 180 minutes
Logging Type| manual AutoHOLD, automatic
Alarm (DO, BOD, OUR, SOUR)| inside and outside limits
PC Connection| opto-isolated USB
Display| graphic color LCD with 240×340 pixels
Power Supply| 12 VDC adapter (included)
Dimensions| 160 x 231 x 94 mm (6.3 x 9.1 x 3.7”)
Weight| 1.2 kg (2.6 lbs.)

Ordering Information

| HI5421-01 (115V) and HI5421-02 (230V) is supplied with HI764083 DO probe, HI7041S electrolyte solution (30 mL), DO membrane caps (2), O-rings for DO membrane cap, HI76404W electrode holder, 12 VDC adapter, quality certificates, quick start guide and instruction manual.

Tel: 098-479-5684  061-8268939

E-mail: sale@neonics.co.th
sale@tools.in.th

Frequently Asked Questions (FAQ)

How can I transfer data from the meter to a PC?

Data transfer can be done using a USB cable and the HI92000 software, both of which are sold separately.

What are the measurement modes available besides Dissolved Oxygen?

In addition to Dissolved Oxygen, the meter offers BOD, OUR, and Sour measurement modes for comprehensive analysis.

How does the meter handle calibration?

The meter supports automatic standard recognition for calibration at two points or user-defined values to ensure accurate measurements.

Can the meter compensate for changes in salinity?

Yes, the HI5421 allows for automatic salinity compensation within a selectable range of 0 to 45 g L.

What is the maximum logging capacity of the meter?

The meter can log up to 100 lots with a maximum of 50,000 records per lot, totaling up to 100,000 data points across different logging modes.

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