Hangzhou Qiwei Instrument Co., Ltd. is one of the leading manufacturers and suppliers of thermostatic cod digester in China. With a professional production team, we are able to meet the needs of the majority of our customers. Welcome to wholesale bulk thermostatic cod digester in stock here from our factory. We also accept customized orders.
In laboratory chemical oxygen demand( COD) testing, the COD-HX Thermostatic COD Digester is designed for controlled heating and sample digestion. It supports sample sample sample preparation for regular water quality analysis because it has 12 heating positions, an adaptable temperature range of 32°C to 399°C, and a divided digital timer.
The COD-HX adopts an impartial air-cooling structure, in contrast to regular metabolism systems that require a separate water-cooling pipeline. This design reduces the need for laboratory water supplies, reduces installation of equipment, and prevents extra cooling-water plumbing.
The device has a published temperatures accuracy of 2°C and can be reached at the set temperature in less than 30 minutes. For research purposes where managed heating is required for COD sample preparation, its compact 12-position configuration is appropriate.
The COD-HX combines customizable heating, segmented timing, and air-cooling design into one laboratory tool to improve the way that laboratories process samples.
product key technologies
Thermostatic COD digester is a professional reflux heating device customized for water chemical oxygen demand testing. Different from traditional water-cooled digestion equipment, this model adopts independent air cooling structure, getting rid of reliance on water supply pipeline, water resource waste and complicated pipeline layout, making the whole digestion process more energy-saving, simpler and more efficient.
Equipped with high-precision constant temperature control module, the equipment can maintain stable and uniform heating status throughout the chemical reaction process, providing consistent digestion conditions for all water samples. It effectively guarantees high accuracy and good repeatability of subsequent COD test results, offering solid data support for daily water quality analysis.
With integrated and compact layout, the instrument occupies small laboratory space and is easy to place and store, perfectly matching routine batch sample pretreatment and daily inspection work.
The device is applicable to a wide range of industries and institutions, including environmental monitoring agencies, university teaching laboratories, medical health organizations, food processing enterprises and tap water factories. It also meets professional testing demands in chemical industry, sewage treatment, papermaking, petrochemical, metallurgy, printing and dyeing fields.
Compared with conventional heating and cooling devices, this digester features fast heating response, high working efficiency and low operating cost. The air cooling design is not affected by water pressure and water temperature changes, reducing daily maintenance difficulty. Operation steps are simplified and easy to master, helping lab staff finish sample placement, constant temperature reaction and follow-up testing efficiently.
With reliable temperature control performance and wide industry adaptability, it acts as indispensable supporting equipment for water quality monitoring and scientific experimental research. It provides high-efficiency, economical and reliable COD detection solutions for various industries, and is widely recognized for energy-saving design and stable running performance.
Technical Parameter
|
Model |
COD-HX-12 |
COD-HX-12T |
|
Temperature Range |
32°C ~ 399°C |
|
|
Accuracy |
±2°C |
|
|
Heating Time |
< 30 min |
|
|
Temperature Setting |
No |
0-99 hours; 0-99 minutes; 0-99 seconds segment adjustable |
|
Power |
1.2KW |
|
|
Power Supply |
AC 220V 50Hz |
|
|
Heating Holes |
12 |
|
Complete COD Laboratory Testing Solution
A full laboratory COD screening setup can be made possible with the COD-HX Thermostatic COD Digester. A suitable COD meter or spectrophotometer is used for later measurement in a normal workflow, while the digester provides controlled heating for sample preparation.
Settings of the equipment is advised
COD Digester: a 12-position thermostatic heating system for sample trial preparation.
COD Analyzer: A compatible instrument for measuring COD values after the required digestion procedure.
Spectrophotometer: The chosen scientific method may require the use of an acceptable spectrophotometer.
Digestion Accessories and Reagents: Compatible vessels, reagents, and laboratory consumables selected according to the testing procedure.
Choose the gear that best fits your lab's workflow
Consider the following factors when constructing a COD tests system: the digestion process, sample volume, digestion temperature, reaction duration, compatibility with the digestion vessels and measuring device.
QiweiLab can help with the selection and configuration of laboratory equipment for ecological engineering contractors, water quality laboratories, and distributors.
Contact our technical team to discuss your COD testing requirements and request a coordinated laboratory equipment quotation.
COD Sample Digestion Workflow and Laboratory Safety
The COD-HX is designed to help a lab COD testing workflow's heating and digestion stages. A normal laboratory setup includes COD measurement using a compatible analytical device, controlled heating, cooling, and sample preparation.
Laboratory personnel may:
1. According to the chosen scientific technique, prepare and identify water samples.
2. Check the metabolism apparatus's compatibility and situation.
3. Set the desired warming period and temperature according to the test procedure.
4. Place the instrument in a space with enough ventilation and heat dissipation for a suitable laboratory.
5. Let processing of heated objects to cool down before handling.
Acidic chemicals and higher conditions may be used to test COD. Operators should adhere to the chemical safety instructions, use suitable ventilation systems, and adhere to the laboratory's recommended reagent safety instructions.
For specific requirements involving acid-resistant housing, acid mist collection, exhaust recovery, or dry-heating protection, please contact QiweiLab to confirm the available equipment configuration before ordering.
FAQ
1. How many samples can the COD-HX process in one heating cycle?
A sample of samples can be heated in the same operating cycle using the COD-HX's 12 heating holes. Before placing an order, please verify the appropriate vessel dimensions and supplement configuration.
2. What is the temperature range of the COD-HX?
The published heat variety is 32°C to 399°C, with a 2°C heat accuracy.
3. How long does the COD-HX take to reach the set temperature?
Under the specified working conditions, the COD-HX can reach the set temperature in less than 30 mins, as per the published requirements.
4. Does the COD-HX require an external cooling-water connection?
Because the COD-HX doesn't have a traditional outside cooling-water pipeline, it adopts an independent air-cooling structure. During installation, sufficient ventilation and heat dissipation area should still be provided.
5. What timer settings are available?
The model of COD-HX-12T supports timers with segments for 0 to 99 hours, 0 to 99 minutes, and 0 to 99 seconds. According to the lab process, the required settings should be chosen.
6. Can the COD-HX be integrated into a complete COD testing system?
In a lab COD workflow, the COD-HX can act as the test heating and digestion unit. According to the scientific procedure and requirements for sample preparation, a compatible COD analyzer or spectrophotometer should be chosen.
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