Hanna HI 2400 Dissolved Oxygen Bench Meter User Manual
Summary
The HI 2400 is a professional logging DO/Temperature bench meter designed for precise water quality analysis. It automatically measures Dissolved Oxygen (DO), temperature, and compensates for salinity and altitude variance. The comprehensive manual serves as an operational guide, detailing everything from preliminary setup and electrical specifications to detailed DO calibration, advanced logging procedures, probe maintenance, and troubleshooting steps. This indispensable tool is essential for laboratory professionals in environmental science, aquaculture, or research fields who require accurate, reliable dissolved oxygen measurements.
Page 1 Text Content
Instruction Manual
HI 2400
Dissolved Oxygen Bench Meter
www.hannains .com
Page Summary Contents For Hanna HI 2400 Dissolved Oxygen Bench Meter User Manual
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Instruction Manual HI 2400 Dissolved Oxygen Bench Meter www.hannains .com
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Dear Customer, Thank you for choosing a Hanna Instruments product. Please read this instruction manual carefully before using this instrument. This manual will provide you with the necessary informati...
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PRELIMINARY EXAMINATION Remove the instrument from the packing material and examine it carefully to make sure that no damage has occured during shiping. If there is any damage, notify your Dealer or t...
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PROBE FUNCTIONAL DESCRIPTION 1. DO Probe 2. Protective Cap 3. Watertight Shielded Cable 4. Polypropylene Probe Body 5. Temperature Sensor 6. O-Ring Seal 7. Silver Chloride Anode 8. Platinum Cathode (s...
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FUNCTIONAL DESCRIPT ION Front Panel Rear Panel 1) Liquid Crystal Display (LCD). 2) CAL key, to enter and exit calibration mode. 3) CFM/GLP key, to confirm calibration selection, different setup values...
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SPECIF ICATIONS mpp00.54ot00.0 EGNAR %0.003ot0.0 )F°221ot0.23(Cº0.05ot0.0 mpp10.0 NOITULOSER %1.0 ,tigid1±roelacslluffo%5.1± YCARUCCA retaergsirevehcihw )rorreeborpgnidulcxe(Cº2.0± elacslluffo%5.1± no...
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OPERATIONAL GUIDE POWER CONNECTION Plug the 12 VDC adapter into the power supply socket. Notes: This instrument use non volatile memory to retain the calibration parameters and all the other settings ...
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INSTRUMENT START-UP Turn the instrument on by pressing the ON/OFF switch. All LCD tags are displayed and a beep is generated while the instrument performs a self test. The instrument will display “ ” ...
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For an accurate calibration, it is recommended to wait at least 15 minutes to ensure precise conditioning of the probe. Keep the protective cap on during polarization time and remove it for calibratio...
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TEMPERATURE MEASUREMENTS The probe has a built-in temperature sensor. The measured temperature is indicated on the secondary LCD as shown above. Allow the probe to reach thermal equilibrium before tak...
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ZERO CALIBRATION Submerse the probe into HI 7040 zero oxygen solution and stir gently for 2-3 minutes. Press CAL. The “~” and “ ” tags will blink on the LCD until the reading is stable. When the readi...
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The instrument stores the slope calibration data and returns to measurement mode. Notes: If the reading is not close to the selected value, “WRONG“ tag will blink. If the temperature goes out of range...
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GOOD LABORATORY PRACTICE (GLP) GLP is a set of functions that allows storage and retrieval of data regarding the maintenance and status of the system. All data regarding DO calibration is stored for t...
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The instrument ID. Setup mode allows viewing and modifying the following parameters: Salinity Factor Altitude Factor Log Interval Current Time (hour & minute) Current Date (month, day & year) ...
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leve Lae Sta)l/g(ytinila S Note: The relationship between salinity and chlorinity for sea water is given by the equation below: Salinity (g/l) = 1.80655 Chlorinity (g/l) ALTITUDE FACTOR Press CAL when...
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leve Lae Sevobasrete M,edutitl A
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LOG INTERVAL Press CAL when log interval is displayed. The log interval and “CFM” tag is displayed blinking. Press the ARROW keys to change the custom buffer value. Press CFM to confirm the selection....
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Press CFM to save the modified value. Press CAL to escape without saving. BEEP STATUS Press CAL when the beep status is displayed. The beep status (“ON” or “OFF”) and “CFM” tag will start blinking. Pr...
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This function allows the user to log DO (in ppm or %) together with temperature automatically, for long periods of time. All logged data can be stored into a PC through the USB port. The memory used f...
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If the log space is full, the “FULL LOG” message will be displayed and no more data will be saved. Note: When pressing any key that is not active, while lot logging is running, the following message i...
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The date on the primary LCD, along with “DATE”, month and day tags. The salinity on the primary LCD and “SAL” message on the secondary LCD. The altitude on the primary LCD and “ALt” message on the sec...
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TEMPERATURE CALIBRATION fo te chn ca personne on ly) Each meter has been factory calibrated for temperature with the supplied DO probe and is ready for measurements. The DO probes are interchangeable ...
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Submerse the DO probe in the second vessel as near as possible to the reference thermom- eter. Allow a few seconds for the probe to stabilize. Use the ARROW keys to set the reading on the secondary LC...
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PC INTERFACE Data transmission from the instrument to the PC can be done with the HI 92000 Windows® compatible software (optional). HI 92000 also offers graphing and an on-line help feature. Data can ...
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CHR xx Change the instrument range according with the parameter value (xx): xx=06 % range xx=07 ppm range The instrument will answer for these commands with: <STX> <answer> <ETX> whe...
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MDR Requests the instrument model name and firmware code (16 ASCII chars). GLP Requests the calibration data record. The answer string contains: GLP status (1 char): represents a 4 bit hexadecimal enc...
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GLDxxxfff:Requests the records of the “xxx” lot number. The records are sent in frames of 10 records; “fff” is the frame number (01 first frame). (Example: Lot 13 has 53 records. The records will be s...
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PROBE & MEMBRANE MAINTENANCE The oxygen probe body is made of reinforced plastic for maximum durability. A thermistor temperature sensor provides temperature measurements of the sample. Use the pr...
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Important In order to have accurate and stable measurements, it is important that the membrane surface is in perfect condition. This semipermeable membrane isolates the sensor elements from the enviro...
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ACCESSORIES HI 7040M Zero Oxygen Solution, 230 ml HI 7040L Zero Oxygen Solution, 500 ml HI 7041S Refilling Electrolyte Solution, 30 ml HI 710005 115VAC to 12VDC converter HI 710006 230VAC to 12VDC con...
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RECOMMENDATIONS FOR USERS Before using this product, make sure that it is entirely suitable for the environment in which it is used. Operation of this instrument in residential areas could cause unacc...
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Hanna Instruments Inc. Highland Industrial Park 584 Park East Drive Woonsocket, RI 02895 USA Technical Support for Customers Tel. (800) 426 6287 Fax (401) 765 7575 E-mail [email protected] www.hannai...
Manual Details
| Brand | Bench |
|---|---|
| Pages | 32 |
| File Size | 848.64 KB |
| Published | May 16, 2026 |
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Frequently Asked Questions
How are multiple environmental factors compensated for by the HI 2400?
It automatically compensates for temperature, allows direct determination of DO in saline waters via salinity compensation, and adjusts readings based on altitude variance.
What is the warranty coverage duration for the electrodes compared to the main unit?
The HI 2400 unit is guaranteed for two years against defects. However, the electrodes and probes are only guaranteed for six months.
What electrical safety restrictions must I observe when operating this bench meter?
Do not use the instrument if voltages at the measurement surface exceed 24 VAC or 60 VDC to prevent electrical shock.
If I need repairs, what information should I be prepared to provide under warranty?
You must report the model number, date of purchase, serial number, and a detailed description of the nature of the problem.