Hanna Instruments HI5421 Research Grade Bench Meter 6 User Guide
- June 2, 2024
- HANNA instruments
Table of Contents
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: [email protected]
[email protected]
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.