11th Floor, Building A3, Tengjieshun Technology Park, No. 2 Shihuan Road, Shiyan Town, Bao'an District, Shenzhen

TR-308S COD ammonia nitrogen total phosphorus analyzer

Detection principle:

The TR-308S COD ammonia nitrogen total phosphorus analyzer from Tongao brand uses a closed catalytic digestion colorimetric method with a digestion tube for COD determination, a Nessler's reagent colorimetric method for ammonia nitrogen determination, and a closed digestion colorimetric method for total phosphorus determination, all of which are recognized by the US EPA. After imported cold light source, narrowband interference technology, and microcomputer automatic data processing, the COD, ammonia nitrogen, and total phosphorus values of the sample are directly displayed. The instrument is widely used in environmental monitoring, sewage treatment, scientific research institutions, and colleges and universities.

Technical Specifications:

measurement parameters	COD (Chemical Oxygen Demand)	ammonia nitrogen	Total Phosphorus
measurement method	HJ/T399-2007 Rapid digestion spectrophotometric method for water quality	HJ535-2009 Nessler's reagent spectrophotometric method for water quality	HJ671-2013 Ammonium molybdate spectrophotometric method for water quality
Measurement range	0-10000 mg/L (segmented measurement)	0-50mg/L (segmented measurement)	0-20mg/L (segmented measurement)
detection limit	5mg/L	0.05 mg/L	0.02 mg/L
dissolution temperature	165 ℃, 15 minutes	No need to dissolve	125 ℃, 30 minutes
resolution	0.001 mg/L
accuracy	COD＞50mg/L，	The indication error shall not exceed 5%
The indication error shall not exceed 5%	repetitiveness
The relative standard deviation shall not exceed 3%	Optical stability
≤ 0.001A/20 minutes	Instrument size
310mm230mm150mm	Instrument power supply
AC(220V±5%)，50Hz	ambient temperature
5~40℃	ambient humidity
≤ 85% non condensing	Instrument weight

Host<3kg, disintegrator 1.3kg

Product Features:
1. The COD determination is carried out using a method recognized by the US EPA, which complies with the HJ/T399-2007 standard and is accurate and effective.
2. The determination of ammonia nitrogen is carried out using a method recognized by the US EPA, which complies with the HJ535-2009 standard and is accurate and effective.
3. The determination of total phosphorus is carried out using a method recognized by the US EPA, which complies with the HJ670-2013 standard and is accurate and effective.
4. Adopting imported high brightness and long-life cold light source with excellent optical performance, the light source has a lifespan of up to 100000 hours.
5. 5-inch large LCD screen with full Chinese display, direct data reading, simple and time-saving operation.
6. Dissolve colorimetric integrated, no need to replace tube, simple and fast measurement, no safety hazards.
7. Can save 20 standard curves and 200 measured values (date, time, parameters, test data).
8. The memory standard working curve, and users can also calibrate the curve as needed.
9. It has the function of curve coverage interference to prevent accidental operation of covering curves.
10. It has data storage function and data power-off protection function, making it convenient to query historical measurement data and prevent data loss.

11. The digestion instrument adopts intelligent PID temperature control technology and a dual anti overheating protection system, ensuring safe and uniform heating with fast speed. Used for the digestion of COD, total phosphorus, total nitrogen and other projects.

Standard equipment list:

Standard List of TR-308S COD Ammonia Nitrogen Total Phosphorus Analyzer	serial number	name	quantity	serial number	name
1	quantity	ABS testing host	8	1 unit	power cord
2	2 pieces	6-hole intelligent digestion instrument	9	1 unit	Color tube cleaning cloth
3	1 piece	Dissolve the protective cover	10	1 piece	Instruction Manual
4	1 copy	COD reagent	11	1 set	Certificate of Conformity/Warranty Card
5	1 copy	Ammonia nitrogen reagent	12
6	1 set	Total phosphorus reagent	13
7	1 set	Dissolving colorimetric integrated tube	14
8	30 pieces	Dissolve the pipe rack	15

1 piece
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