Hanna Instruments HI6421 User Manual

TABLE OF CONTENTS
1. Preliminary Examination ...........................................3
2. Safety Measures .......................................................3
3. User Interface – Icons ............................................... 4
4. General Description & Intended Use ............................6
4.1. Main Features ................................................. 7
5. Specifications ...........................................................8
5.1. Instrument ..................................................... 8
5.2. Optical Probe (HI7641133) ........................... 10
5.3. Polarographic Probe (HI764833) ................... 11
6. Functional & LCD Description ...................................12
6.1. Main Unit ..................................................... 12
6.2. Probes .......................................................... 14
7. Getting Started .......................................................15
7.1. Attaching the Holder ..................................... 15
7.2. Using the Adapter ......................................... 16
7.3. Using the Holder ........................................... 18
7.4. Connecting the Probe, Keyboard, Printer .......... 18
7.5. Powering the Unit, Selecting Operating
Language and Regional Preferences ............... 19
7.6. Basic Operations ........................................... 19
8. System Menu Items ...............................................20
8.1. Users ........................................................... 20
8.2. System Settings ............................................ 24
8.3. Measurement Settings .................................. 30
8.4. Log Recall .................................................... 31
8.5. Help ............................................................ 38
9. Measurement & Probe Setup Menu ...........................39
9.1. Calibration ................................................... 39
9.2. Reading ....................................................... 40
9.3. Temperature ................................................. 41
9.4. View ............................................................ 42
9.5. Alarms ......................................................... 45
9.6. Logging ........................................................ 46
9.7. Profiles ......................................................... 47
10. Calibration ...........................................................48
10.1. Probe Preparation ....................................... 48
10.2. DO Calibration ............................................ 50
10.3. Pressure Compensation ................................ 52
10.4. Salinity Compensation ................................. 52
11. Measurement .......................................................52
11.1. Guidelines .................................................. 52
11.2. Measurement Tips ....................................... 53
11.3. Direct Readings ........................................... 53
11.4. Direct/Autohold Readings ............................ 54
12. Logging ...............................................................54
12.1. Automatic Logging ...................................... 55
12.2. Manual Logging .......................................... 56
12.3. Autohold Logging ........................................ 57
13. Maintenance ........................................................58
13.1. Benchtop General Cleaning .......................... 58
13.2. Optical Probe (HI7641133) ......................... 58
13.3. Polarographic Probe (HI764833) ................. 60
14. Error Messages .....................................................61
16. Abbreviations .......................................................62
17. Accessories ........................................................... 62
Certification .................................................................63
Recommendations for Users .......................................... 63
Warranty ....................................................................63
Regulatory Notices for the Wi‑Fi Module ........................64
Dear Customer,
Thank you for choosing a Hanna Instruments
®
product.
Please read this instruction manual carefully before using this instrument as it provides the necessary information
for correct use of this instrument, as well as a precise idea of its versatility.
If you need additional technical information, do not hesitate to e‑mail us at tech@hannainst.com.
Visit www.hannainst.com for more information about Hanna Instruments and our products.
All rights are reserved. Reproduction in whole or in part is prohibited without the written consent of the copyright owner,
Hanna Instruments Inc., Woonsocket, Rhode Island, 02895, USA. Hanna Instruments reserves the right to modify the design,
construction, or appearance of its products without advance notice.

Hanna Instruments HI6421 Specifications

General

Brand	Hanna Instruments
Model	HI6421
Category	Measuring Instruments
Language	English