NHNG-3010 online ammonia nitrogenanalyzer

Shanghai Botuo Instrument Co., Ltd

Wang Yuzhang

For more detailed products, you can download the online ammonia nitrogen manual to learn more.

application

This method is suitable for ammonia nitrogen in0～300mg/LWastewater within the scope. Excessive calcium and magnesium ions, residual chlorine, or turbidity may interfere with the measurement.

System Description

*The design of this product enables it to have a low failure rate, low maintenance, low reagent consumption, and high cost-effectiveness compared to similar products.

1- Select valve component: Select the timing of reagent sampling;

2- Measurement component: Accurate measurement of reagents is achieved through a visual photoelectric system, overcoming quantitative errors caused by wear of peristaltic pump tubes; At the same time, precise quantification of trace reagents has been achieved, with each dose being only 1.5 milliliters, greatly reducing the amount of reagents used.

3- Sample injection component: Peristaltic pump negative pressure suction, there is always an air buffer zone between the reagent and the pump tube to avoid corrosion of the pump tube;

4- Sealed digestion component: High temperature and high pressure digestion system accelerates the reaction process and overcomes the corrosion of equipment caused by the volatilization of corrosive gases in open systems;

5- Reagent tube: Imported modified PTFE transparent hose with a diameter greater than 1.5mm is used to reduce the probability of particle blockage in water samples.

electrical device

The use of imported PLC and other control components reduces environmental interference and equipment failures.

Basic Principles

After mixing water samples with masking agents, ammonia nitrogen in the form of free ammonia or ammonium ions reacts with salicylic acid colorimetric reagent in an alkaline environment and in the presence of sensitizers to form a colored complex. The analyzer detects the change in color and converts this change into ammonia nitrogen value for output. The amount of colored complex generated is equivalent to the amount of ammonia nitrogen.

technical indicators

National standard GB 7481-87 "Water quality - Determination of ammonium - Salicylic acid spectrophotometric method"；National StandardHJ/T536-2009《Water quality - Determination of ammonia nitrogen - Salicylic acid spectrophotometric method

How to translateMethod basis:

Salicylic acid spectrophotometric method.

2 Measurement range:0.10-10.00mg/L，10-50 mg/L，50-150mg/L3. Indication error:≤2.0mg/L:±0.2mg/L; >2.0mg/L:

±210%4 Stability:Within 4 hours, not exceeding

5±

610%

7Repeatability: ≤ 3%

8Measurement cycle: The small measurement cycle is 40 minutes, and according to the actual water sample, the digestion time can be arbitrarily modified within 5-120 minutes.

9Sampling period: time interval (adjustable from 10 to 9999 minutes) and whole point measurement mode.

10Calibration cycle: 1 to 99 days, adjustable at any interval and time.Maintenance cycle: usually once a month, about 30 minutes each time.

11Reagent consumption: 4Less than 5 yuan per sample.Output: RS-232,～20mA（2 routes）

12，28RS485 (optional)

13Environmental requirements: Indoor environment with adjustable temperature, recommended temperature range of+5~

14℃； Humidity ≤ 85% (non condensing).

15Power supply: AC220 ± 22V, 50 ± 0.5Hz, 5A.

Dimensions: Height 1570 x Width 500 x Depth 450mm.

16 Other: Abnormal alarms and power outages will not result in data loss; Touch screen display and command input;

After abnormal reset and power failure, the instrument will automatically discharge residual reactants and restore working status.

Human computer interaction mode: LCD touch screen, Chinese display, and command input

17 ammonia nitrogen digestion tank, specification 24V, 1.8AThe appearance size of the 18 way valve is φ 52 * 72mm, with a diameter of 1.6mm, and it is resistant to high temperature and corrosion

19 possesses