1、 Overview

HJ-101 typeCOD constant temperature heaterIt is a new type of COD experimental digestion pretreatment device. The instrument adopts a new multifunctional control unit and a new heating material. According to the experimental method, the sample is heated to 165-170 ℃ and maintained at a constant temperature for 2 hours to ensure complete digestion of the water sample and accurate and reliable COD experimental results. The instrument can process 12 samples in batches, greatly saving experimental time and saving enterprises up to tens of thousands of yuan in manpower and resources annually.

2、 Main features

1. Adopting a new type of temperature controller with fast heating and four control operation modes to choose from

2. Can be used to set/display temperature, time, alarm and other functions

3. High temperature control accuracy, good constant temperature effect, and reduced experimental errors

4. The actual temperature inside the hole can be adjusted to ensure complete digestion

5. Equipped with parameter lock function to prevent parameter settings from being set incorrectly

6. Temperature (℃/℉), time (s/min/h), freely switchable units

7. Automatically control the heating time, start timing when the set temperature is reached

8. Air condensation replaces traditional water condensation, with a cooling tube length of 70cm, sufficient to cool evaporated samples

9. The bottom of the heating plate is processed by our factory's special technology to ensure uniform heating of all samples

10. Equipped with automatic alarm function upon arrival, and power-off protection for the last set data

11. Adopting a three sided hollow heat dissipation design to prevent excessive shell temperature and eliminate safety hazards

12. Equipped with a 16 hole metal test tube rack for storing heating and condensing tubes, sturdy and reliable to prevent falling.

3、 Technical parameters

parameter	describe
control model	4 operating modes to choose from
Adjustable temperature range	Room temperature -420 ℃ (expandable)
Temperature control error	≤ 1 ℃
Heating speed	165 ℃ ≤ 20min (calculated based on COD experimental temperature)
Batch heating sample quantity	Standard configuration includes 12 units (customizable according to requirements)
COD measurement range	National standard implementation
digestion time	0-999h adjustable, COD experiment: 120 minutes
Power Supply and Power	ac220v±20v； 1kw
Host size	435mm x 285mm x 115mm (length x width x height)
weight	12.8kg
work environment	0~50 ℃, relative humidity 35%~85% (no condensation)

4、 Configuration List

1. One host (12 holes)

2. One set of test tube rack (16 holes)

3. 15 heating tubes

4. 15 reflux condenser tubes

5. One copy of power cord, certificate of conformity, warranty card, and instruction manual