Hanna Instruments

Scientific Equipment

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HI-839800 25 Vial Thermo-Reactor

HI-839800 25 Vial Thermo-Reactor

Hanna HI-839800 25 Vial Thermo-Reactor

HI-839800 25 Vial Thermo-Reactor

Uses industry standard reagents
2 year manufacturer warranty
In Stock
£872.45 (exc. VAT) £1,046.94 (inc. VAT)

The Hanna HI-839800 thermo-reactor is an easy to use test tube heater with the capacity to perform up to 25 simultaneous digestions. Complete with a countdown timer, it can be used for timed or infinity testing procedures.

HI-839800 25 Vial Thermo-Reactor information

Hanna's extended description

Robust and durable, the main body is machined from a single block of metal. Temperature within the block is controlled using a sophisticated electronic thermostat and can be verified by placing a thermometer in the temperature well provided.

The reactor is equipped with 6 pre-defined and 2 user-defined °C profiles.

  • Dedicated temperature profiles for COD and total phosphorus reactions are pre-set to 150°C
  • The total nitrogen analysis temperature is pre-set to 105°C
  • In adjustable temperature mode (50 to 150°C), the heater can be used for other samples that require different digestion temperatures

  • Key features
  • Heater block temperature is continuously evaluated and displayed on the LCD
  • Low temperature alert indicates that temperature is below set value
  • High temperature alert warns when temperature rises above the set value
  • Reactor has a thermal fuse that prevents overheating by disabling the heater
  • Countdown timer shows time remaining until heating element shuts off
  • A three hour countdown timer is ideal for timed digestion
  • The sound of a 'beep' indicates when the timer has expired and the heating element turns off
  • To operate in infinity mode, the timer can be used without the shut-off feature
  • Visual power indication
  • Green LED indicates power on
  • Blinking red LED warns if heater exceeds 50°C
  • Yellow LED indicates heating is active
  • For optimum safety, the block heater should always be used with a safety shield or other physical barrier placed between samples under test and operator

  • Accessories
  • Stainless steel test tube rack to hold 25 COD tubes - HI 740216
  • Bench top safety shield for use with HI-9800 series COD reactor/digester - HI-740217

  • Mains powered - All mains operated equipment is compatible with UK AC voltage and frequency – 230V, 50Hz.


    Specifications list


    Temperature of Reaction 105°C or 150°C
    Temperature Stability ±0.5°C
    Temperature Range -10°C to 160°C
    Temperature Accuracy ±2°C (@ 25°C)
    Capacity 25 vials (dia 16 x 100 mm), 1 receptacle for a stainless steel reference thermometer
    Warm-up Time 10 to 15 minutes, depending on selected temperature
    Operating Mode timed (0 to 180 minutes) or infinity mode
    Block aluminium
    Environment 5 to 50°C
    Power Supply HI-839800-02 230 Vac
    Dimensions 190 x 300 x 95 mm (7.5 x 11.8 x 3.7")
    Weight approximately 4.8 kg (10.6 lb)
    Ordering Information HI-839800 is supplied with a power cable and instruction manual.
    Warranty 2 years

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