
Hanna Instruments Inc., 584 Park East Drive, Woonsocket, RI 02895 USA
www.hannainst.com
QUICK REFERENCE GUIDE
HI839800 Hanna Instruments COD Reactor for
Chemical Oxygen Demand and user-specific analysis
Available Models
• HI839800-01
115 Vac, USA plug
• HI839800-02
230 Vac, European plug
Package Contents
• HI839800
• HI740217 Laboratory safety shield
• Power cable
• Quick reference guide with instrument quality certificate
Note: Save all packing material. Any damaged or defective item must be
returned in its original packing material with the supplied accessories.
Main Features
• Three stored temperature programs ›105 °C, 150 °C, 170 °C
• Three configurable temperature programs
• Up to 25 vials block capacity
Key Applications
Methods that require digestion Temp. (°C) Timer (minutes)
Hanna Instruments COD methods 150 / 170 120 / 15
Other methods 150 / 105 30 / 60
Reducing sugars (wine analysis) 105 7
User-specific programs 30 to 170 up to 180
COD Analysis Procedure, Equipment, Accessories
1. Sample and blank preparation › HI93754X-25*
2. Sample digestion › HI839800
3. Measurement › HI801, HI83399, HI83314, HI83224, HI97106
*Visit www.hannainst.com for reagent vial sets ordering codes
Brief Operational Overview
• Plug in to power. AC power socket with fuse holder (1).
• Press the ON/OFF switch (2) to turn the instrument on.
ON
OOFFFF
2
1
Keypad functions
START STOP
PROG
SET
HEATING
POWER
HOT
3
4
5
1
1. Program navigation (stored and custom programs)
Program configuration (time and temperature)
2. Long press to enter edit mode / short press to save value
3. START program / digestion
4. STOP digestion / exit edit mode
5. Reactor block status
Program Selection and Configuration
1. Use ud keys to select stored program.
• Option to continue with stored program.
2. Alternatively, long press kto enter edit mode.
3. Use ud keys to configure blinking temperature value.
4. Press kto confirm.
5. Use ud keys to configure blinking timer value.
6. Press kto confirm.
Safety Precautions
• Observe “Hot surface” warning!
• Use of supplied safety shield strongly recommended.
• Read the Safety Data Sheets (sds.hannainst.com) prior to
handling reagents.
Please retain for future use. QR839800 04/23
Hanna Instruments is committed to developing and deploying digital
solutions with a positive impact on the environment and climate.
All Hanna®instruments conform to the CE European
Directives and UK standards, and our production
facilities are ISO 9001 certified. HI839800 is warranted
for a period of two years against defects in workmanship and materials when
used for its intended purpose and maintained according to instructions.
Dear Customer,
Thank you for choosing Hanna Instruments.
For more information about Hanna Instruments and our products,
visit www.hannainst.com or e-mail us at sales@hannainst.com.
For technical support, contact your local Hanna Instruments office or
e-mail us at tech@hannainst.com.
Please scan the QR code or use the link below to
download the user manual.
https://manuals.hannainst.com/HI839800