C.O.D Digester

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C.O.D Digester Specification

Core Components
Heater block, Temperature controller, Sample holder

Measurement Range
10 to 1000 mg/L

Capacity
12 samples per batch

Temperature Range
50C to 180C

Model No
COD-12

Accuracy
100 %

Frequency
50 Hz

Automation Grade
Semi-Automatic

Voltage
230 V AC

Feature
Highly Efficient

Power Source
Electric

Equipment Materials
Chemical Resistant Mild Steel Powder Coated Body

Type
COD Digester

Usage
Laboratory

Display Type
Digital

Dimension (L*W*H)
415 x 300 x 220 mm

Weight
Approx. 12 kg

About C.O.D Digester

C.O.D Digester

COD Digester
is the most accepted Thermoreactor for Determination of Chemical Oxygen Demand in Various Substances.Chemical Oxygen Demand (COD) is a Measure of the Capacity of Water to Consume Oxygen During the Decomposition of Organic Matter and the Oxidation of Inorganic Chemicals such as Ammonia and Nitrite. COD Measurements are Commonly made on Samples of Waste Waters or of Natural Waters Contaminated by Domestic or Industrial Wastes. Chemical Oxygen Demand is Measured as a Standardized Laboratory assay in which a closed Water Sample is Incubated with a Strong Chemical Oxidant Under Specific Conditions of Temperature and for a Particular Period of Time.

High Performance and User Friendly Controls Combine to Produce a Specification Which Offers Exceptional Efficiency and Reliability. The Benefit to you-convenient, No Fuss Heating!

Excellent Temperature Control.
Uniform And Stable Heating
New Compact Size

Technical Specification:

Controller	Microprocessor Based Digital Temperature Indicator cum Controller
display	LED with set value (SV) and Process value (PV)
BLOCK DIMENSIONS (WXDXH) (in mm)	270mm(L) X 150mm(W) X 70mm(D)
Heater Load	1.0 KW
Tube Cavity	40mm(Ø) x 65mm(D)
No. of Cavaties	15 holes to accommodate 15 samples
Glass Tube Size	Supplied with 15 nos. of Glass Tubes of size 38mm(Ø) x 200mm (Length)
Glass Air Condenser Size	Supplied with 15 nos. of air condensers of 600 mm length each.
Sample Size	20 ml
Temperature Range	Ambient +5°C to 150°C
Temperature Accuracy	±1°C
Sensor	RTD (Pt-100)
Material External	Powder Coated CRC Steel
Block	Polished Aluminium
Tube Rack	1 No.
Timer (SAD) (Auto Time Control Unit)	Fitted with AUTOMATIC DIGITAL MINUTE TIMER which starts automatically when set/desired value of temperature is achieved. When the set time period is over the heaters get switched off automatically.
Buzzer	Alarm for cycle end
Power Supply	230V AC, 50/60Hz

Efficient COD Analysis for Laboratories

Perform COD determination with ease using the COD-12 Digester. Its high-capacity design processes up to 12 samples per batch, making it suitable for busy laboratory environments. The advanced heating system and precise digital controls guarantee reproducible results while maintaining safety through multiple protection features.

Robust and User-Friendly Construction

The digesters aluminium block and chemically resistant mild steel powder coated body ensure durability and longevity. A removable spindle lid accommodates the sample tubes securely, providing easy access and flexibility during batch preparation. The double-walled design with ceramic insulation maximizes safety and energy efficiency.

FAQs of C.O.D Digester:

Q: How does the COD-12 Digester ensure sample accuracy during COD determination?

A: The COD-12 Digester utilizes precise temperature control via a digital controller and timer, along with uniform heating from embedded electrical elements. Double-walled ceramic insulation minimizes heat loss and fluctuations, resulting in highly accurate COD measurement every batch.

Q: What is the process for operating this COD Digester in the laboratory?

A: To operate, simply load up to 12 samples in 40 mm diameter tubes, secure the removable spindle lid, set the desired temperature (between 50C to 180C) and timer (up to 120 minutes) using the digital controls, and start digestion. Over-temperature and fuse protection systems provide added safety throughout the process.

Q: When should laboratories use this digester for water/wastewater analysis?

A: This COD Digester is ideal for routine COD determination in water and wastewater testing, especially where high throughput and accuracy are requirements. Its batch capacity suits regular monitoring, research, or regulatory compliance analyses.

Q: Where can this equipment be installed and used most effectively?

A: It is best suited for laboratory settings, including environmental labs, water treatment facilities, quality control departments, and research institutions in India and internationally. Its compact design allows it to fit standard lab benches.

Q: What benefit does the double-walled ceramic insulation provide?

A: Double-walled ceramic insulation not only enhances operator safety by maintaining external surface temperatures but also improves heating efficiency and temperature consistency, leading to precise results and energy savings.

Q: How does the COD-12 Digester protect against overheating and electrical faults?

A: Safety features include over-temperature protection, which prevents the unit from exceeding preset temperatures, and fuse protection to guard against electrical overloads, ensuring reliable, risk-free operation during extended laboratory use.

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