TW-5158 portable COD ammonia nitrogen total phosphorus total nitrogen series analyzer

1TW-5158 portable COD ammonia nitrogen total phosphorus total nitrogen series analyzerbrief introduction

This instrument has a LCD display with multiple wavelength options, over 30 measured parameters, built-in curves, built-in printer, and USB interface for data upload. It is widely used in environmental monitoring, sewage treatment, large, medium, and small water plants, industrial and mining enterprises, domestic or industrial water use, universities, scientific research units, and other departments.

2TW-5158 portable COD ammonia nitrogen total phosphorus total nitrogen series analyzerInstrument features

1) Separating the digestion instrument from the measuring instrument does not affect the measurement accuracy. Temperature PID automatic temperature control and timing.

2) LCD large screen with full Chinese display, easy and intuitive operation.

3) High performance ultra-low power 16 bit microcontroller, and the host is equipped with a high-capacity rechargeable lithium battery, which can be used for up to six months.

4) The instrument is convenient, compact, and easy to carry for on-site testing. Multiple power supply methods, including car cigarette lighters, high-capacity portable lithium batteries, and 220V power sources, eliminate the problem of being unable to detect in the wild due to the inability to find conventional power sources.

5) The digestion instrument can be equipped with portable high-capacity lithium batteries to meet the needs of large-scale water sample determination

6) It can save 30 standard curves and 199 measured values (including concentration values with time labels, absorbance values, and transmittance). The curve can be calibrated and saved by itself.

7) With USB interface, it can connect to a computer, upload and print stored data.

8) Cold light source, narrowband interference optical system, good optical stability.

9) Data power-off protection function.

10) The host chassis is made of molded ABS material, which has good anti-corrosion, waterproof and dustproof performance.

11) High strength suitcase, beautiful, sturdy, and easy to carry

3Main technical indicators

1) Measurement range: (measured after dilution in excess range)

COD：（5～2000）mg/L；

Divided into three ranges: （5～200）mg/L、（200～1000） mg/L、（1000～2000） mg/L

Ammonia nitrogen: （0.02～25）mg/L； Divided into two ranges: （0.02～5）mg/L、（5～25） mg/L

Total phosphorus: （0.00～10）mg/L； Divided into two ranges: （0～2）mg/L、（2～10） mg/L

Total nitrogen: （0.5～100）mg/L； Divided into two ranges: （0.5～10）mg/L、（10～100） mg/L

2) Indication error: COD：≤±5 %；

Ammonia nitrogen: ≤ The largest of ± 3% (F.S) and 0.2;

Total phosphorus: ≤ The largest of ± 5% (F.S) and 0.2;

Total nitrogen: ≤ ±5%

3) Repeatability: ≤ 3%

4) Repeatability: ≤ 3%

5) Anti chlorine interference: ≤ 2000mg/L (COD determination)

6) Temperature control system: (room temperature~180) ℃ can be set

COD digestion temperature: 165 ℃, total phosphorus digestion temperature: 120 ℃, total nitrogen digestion temperature: 125 ℃

7) Temperature control accuracy: ± 1 ℃

8) Dissolving time: adjustable from 1 to 999 minutes

COD digestion time: 15 minutes, total phosphorus digestion time: 30 minutes, total nitrogen digestion time: 30 minutes

9) Optical stability: The instrument's absorbance value drifts less than 0.002A within 20 minutes

10) Batch processing capacity: 4 water samples

11) Power consumption: current<40uA; Dissolver power consumption:< 65W

12) Environmental temperature: (5-45) ℃

13) Relative humidity: ≤ 85%

14) Power supply: Tester: Built in rechargeable lithium battery

Dissolver: car cigarette lighter, portable lithium battery or 220V power supply

15) Dimensions: Measuring instrument: 80mm × 230mm × 55mm

Dissolving instrument: 105mm × 160mm × 90mm

16) Weight: Measuring instrument 0.5kg Dissolving instrument: 1kg