This document introduces the use of the HI 839800 COD REACTOR and Test Tube Heater produced by Hanna Instruments Inc., including product features, functions, and usage instructions.
The HI 839800 is a thermo-reactor designed to incubate glass vials containing hazardous chemicals at high temperatures. It features two predefined temperature programs (150°C for COD and total phosphorous reactions, and 105°C for total nitrogen digestion) and can hold up to 25 vials simultaneously. The unit includes LED indicators for power, heating status, and hot surface warnings.
| Vial Capacity | 25 vials (dia 16x10 mm) |
|---|---|
| Temperature Range | -10°C to 160°C |
| Operating Temperatures | 105 °C or 150°C (221 °F or 302 °F) |
| Warm-up Time | 10 - 15 minutes |
| Power Supply (Model 01) | 115 Vac; 60 Hz; 250 W |
| Power Supply (Model 02) | 230 Vac; 50 Hz; 250 W |
| Dimensions | 190 x 300 x 95 mm (7.5 x 11.8 x 3.7") |
| Weight | approx 48 kg (106 Ib.) |
The reactor has two predefined profiles: 150°C for COD and total phosphorous reactions, and 105°C for total nitrogen digestion.
The heater block can hold up to 25 vials with a diameter of 16x10 mm.
The message DONE is displayed, and the heating element turns OFF so samples are ready for removal.