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COD and Wastewater Parameters Analyzer HI839150-02

Producer: HANNA Instruments

SKU: HANNA-HI839150-02 Category: Hanna experimental measuring equipment

The HI839150 is an easy-to-use digestion unit with durable metal construction and a metal housing. It is designed with two pre-defined temperature programs (digestion temperature settings for COD and Total Phosphorus at 150^oC and at 105^oC for total nitrogen digestion.) In addition, LEDs will signal when the power is on (POWER), the heating process (HEATING) and the hot surface alarm (HOT). At the end of the selected digestion time, an audible signal is emitted and the heater will automatically turn off. The temperature is continuously displayed on the display even when the temperature program is not active.

Low and high temperature warning

Integrated countdown timer

Status indicator light

The HI839150 COD Digester is designed with two pre-defined temperature programs: 150ºC and 105ºC. Digestions for chemical oxygen demand (COD) and total phosphorus are conducted at 150ºC, while total nitrogen is conducted at 105ºC. The test tubes automatically heat up to the set temperature, holding it until the timer has completed. Once the time has elapsed, a beep will be heard and the heating element will turn off. The exterior of the HI839150 remains cool to the touch even during digestion. A laboratory safety shield and test tube cooling rack are available for purchase for a safer and more complete digestion process.

SALIENT FEATURES

Temperature setting – The digestion tubes have two preset temperature programs at 150ºC (221ºF) and 105ºC (301ºF) that can be selected with the push of a button.

Temperature warning – The HI839150 alerts the user in case the heating block temperature is above or below the set temperature. A timer icon reminds the user to wait until the heating block has cooled or warmed up before placing the sample.

Countdown timer – An integrated countdown timer of up to 180 minutes allows the user to easily set the required digestion time by pressing the up and down arrows. Once the time has been set and the heating elements are stable, press the START button to begin the digestion process.

Status indicator light – Three LEDs are present on the HI839150. A green LED indicates that the heating mode is on; a yellow LED indicates that the meter is heating to a specified temperature; a red LED indicates when the meter is heating above 50ºC, reminding the user that the aluminum tubes are hot.

Prevent overheating – HI839150 Contains a thermal fuse to prevent the machine from overheating. If the machine overheats, the machine automatically shuts down and all LED indicators turn off.

Location to check temperature – In addition to the 25 aluminum heating tubes, the digester also has a position for temperature control.

Two modes of operation – HI839150 There are two operating modes: idle and warm-up. Idle mode is the default mode, in which the meter measures and displays the current temperature, temperature target, reaction time setting, and an “idle” tag. Warm-up mode is activated when the user presses the START button.

Continuous LCD display – The machine temperature is continuously displayed in an easy to read LCD display, even when there is no temperature program running. All temperature-related information is easily visible in sleep and warm-up modes.

Error message – On-screen messages alert to problems including high or low temperatures, hot surfaces, or heating system malfunctions.

SPECIFICATIONS

Reaction temperature	105°C or 150°C (221°F or 302°F)
Stable temperature	±0.5°C
Temperature scale	20.0°C to 160.0°C (68 to 320 °F)
Temperature accuracy	±2°C
Capacity	25 tubes (Ø16 x 100 mm), 1 position for temperature check
Customizable heat up time	10 to 15 minutes, depending on selected temperature
Operating time	1 to 180 minutes
Environment	5 to 50°C (41 to 122°F)
Electricity supply	HI839150-01: 115 Vac HI839150-02: 230 Vac
Size	190 x 300 x 95 mm (7.5 x 11.8 x 3.7″)
Mass	Approximately 4.8 kg (10.6 lb)
Supply includes	– HI839150-02 sample digestion machine – Safety shield when breaking sample HI740217 – Power cable
Guarantee	12 months