WXZJ-NH3-N Series Ammonia Nitrogen Online Analyzer

In the WXZJ-NH3-N Series Ammonia Nitrogen Online Analyzer, the sample to be analyzed is mixed with an expelling agent in a distiller, converting NH4+ ions in the sample into ammonia gas (NH3). The ammonia gas released from the sample is transferred to the measurement cell, where it redissolves in an indicator, causing a color change in the indicator. The indicator is then titrated with a titrant to determine the concentration of NH3-N.

Features of the WXZJ-NH3-N Series Ammonia Nitrogen Online Analyzer:

★ Unique design, resulting in lower failure rates, lower maintenance requirements, reduced reagent consumption, and higher cost-effectiveness compared to similar products.

★ Optical components: Utilizes a dual-beam system rarely used in domestic online monitoring instruments. Unaffected by various environmental factors during detection. Automatically corrects system errors, improving measurement accuracy, stability, and repeatability.

★ Valve components: Uses original imported components from the United States, Japan, or Germany. Employs internationally mainstream fluid components with minimal dead volume and simpler operation.

★ Metering components: Achieves precise reagent dosing through a visual photoelectric system, overcoming quantitative errors caused by peristaltic pump tube wear. Enables precise micro-dosing of reagents, with each dose僅為1--5 milliliters, significantly reducing reagent usage.

★ Sampling components: Utilizes peristaltic pump negative pressure suction, with an air buffer always present between the reagent and the pump tube, preventing corrosion of the pump tube.

★ Sealed digestion components: High-temperature and high-pressure digestion system accelerates the reaction process, overcoming corrosion caused by volatile corrosive gases in open systems.

★ Reagent tubes: Uses imported modified transparent polytetrafluoroethylene (PTFE) soft tubes with an inner diameter greater than 1.5 mm, reducing the likelihood of sample particle clogging.

★ Signal processing: Employs original imported high-precision analog-to-digital conversion chips, greatly enhancing the expandability of the core board. Adaptable to various usage environments, making instrument operation simpler and more user-friendly.

★ Temperature control: Utilizes imported temperature sensing elements to form a precise temperature control system. Incorporates temperature compensation technology to overcome temperature drift effects, ensuring sample reaction conditions better meet requirements.

★ Software advantages:

1. The entire software system framework and external facilities make human-machine interaction simpler and functional applications more comprehensive;

2. Allows real-time configuration to address contamination caused by different water qualities in specific field conditions during measurement, significantly reducing instrument failure rates due to this issue and improving measurement data accuracy;

3. Features an automatic calibration mode. After automatic calibration, the instrument returns to automatic mode and operates according to user-set parameters, eliminating the need for full staff monitoring, greatly reducing maintenance time, and improving maintenance efficiency;

4. Offers two measurement modes: online (automatic) and offline (manual). Offline mode uses a calibration tube for measurement without removing the sample tube from the sampling port or cup, making maintenance more convenient;

5. Can store up to 200,000 data records, with data exportable at the touch of a button;

6. Online (automatic) and offline (manual) mode data are stored independently. Offline mode data is not uploaded to the data collector, avoiding impact on uploaded data during instrument maintenance.

Technical Parameters

★ Measurement range: 0-50 mg/L

★ Accuracy: ±10%

★ Repeatability: ±10%

★ Measurement cycle: ≤30 minutes

★ Sampling cycle: Time interval (adjustable from 20 to 9999 minutes) and整點 measurement mode.

★ Calibration cycle: Adjustable任意間隔任意時刻 from 1 to 99 days.

★ Maintenance cycle: Typically once per month, approximately 30 minutes each time.

★ Output: RS-232, RS485, 4-20mA, 0-5V

★ Environmental requirements: Indoor environment with adjustable temperature, recommended temperature +5～28°C; humidity ≤90% (non-condensing).

★ Power supply: AC230±10%V, 50±10%Hz, 5A.

★ Dimensions: Height 1500×Width 550×Depth 450 mm.

★ Other:異常報警 and power failure do not result in data loss. Touch screen display and command input. After異常復位 or power restoration, the instrument automatically discharges residual reactants and resumes operation.