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Phone
18675228366
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Address
No. 07, 22nd Floor, Building 4, Jiazhaoye Center Phase 1, No. 9 Huizhou Avenue, Jiangbei, Huizhou City
Huizhou Huagao Instrument Equipment Co., Ltd
18675228366
No. 07, 22nd Floor, Building 4, Jiazhaoye Center Phase 1, No. 9 Huizhou Avenue, Jiangbei, Huizhou City
Product Description, Technical Parameters, and Configuration
Detection principle:
GB7493-87 "Determination of Nitrite Nitrogen in Water Quality - Spectrometric Method" In a phosphoric acid medium with a pH value of 1.8 ± 0.3, nitrite reacts with p-aminobenzenesulfonamide to form diazonium salts, which are then coupled with N - (1-naphthyl) - ethylenediamine to form a red dye. The absorbance of the dye is measured by spectrophotometry, and the nitrite content (mg/L) is directly displayed after processing and calculation by a microcomputer chip.
Technical parameters:
| Testing standards | GB7493-87 "Water quality - Determination of nitrite nitrogen - spectrophotometric method" |
| Measurement range | 0-1ppm (segmented) |
| limit of detection | 0.001ppm |
| measuring accuracy | Error ≤± 5% |
| repeatability | ≤±5% |
| Optical stability | ≤± 0.001A/20 minutes (100000 hours lifespan) |
| Colorimetric method | Colorimetric tube for color comparison |
| Power supply mode | AC(220V±10%),50Hz |
| Host size | 270mm*220mm*95mm |
| ambient temperature | 5~40℃ |
| ambient humidity | ≤ 85% non condensing |
| weight | 1.3kg |
Product features:
1. Compliant with GB7493-87 "Water Quality - Determination of Nitrite Nitrogen - spectrophotometric method", the measurement is accurate and effective.
2. Adopting imported high brightness and long-life cold light source, with excellent optical performance and a light source lifespan of up to 100000 hours.
3. Large LCD screen with full Chinese display, direct data reading, simple and time-saving operation.
4. Can save 20 standard curves and 200 measured values (date, time, parameters, test data).
5. The memory standard working curve, and users can also calibrate the curve as needed.
6. It has the function of curve coverage interference to prevent accidental operation of covering curves.
7. One click factory reset allows for quick recovery in case of curve loss due to misoperation.
8. It has data storage function and data power-off protection function, making it convenient to query historical measurement data and prevent data loss.