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LA-254는, 액상상태의 시료내의 수은농도를 측정하는데 사용된다.
- 측정범위 : 0.1ppb ~ 10ppb, 0 ~ 1ug/L, 10ppb(낮은범위), 0 ~ 100mg/L(높은범위)
- 짧은 측정시간
- 낮은 시약 소비
- 자동영점조절
- 쉬운 운용방법
| Measuring principle: | UV-Absorption |
| Wavelength: | 254 nm |
| UV source: | electrodeless low-pressure mercury lamp (EDL), temperature-controlled |
| UV detectors: | Silicon, UV-enhanced, temperarure controlled |
| Stabilization method: | Double beam (reference beam) method |
| Optical cell: | Fused silica (Suprasil), approx. 23 cm long |
| Optical cell heating: | approx. 70°C |
| Measuring range: | lowest range: 0...1 µg/L highest range: 0...100 mg/l |
| Pump: | long-life membrane pump |
| Air stream: | 30 l/h, adjustable |
| Measuring range: | 0.01 µg/l ... 10 µg/l (10 ppt ... 10 ppb) for 10 ml |
| Sensitivity: | 5 ng/l or 0.05 ng |
| Sample volume: | 2 ... 10 ml |
| Reducing agent: | tin-II-chloride or sodiumborohydride |
| Display of readings: | Graphic LCD with background illumination |
| Outputs: | analog 4-20 mA, RS 232computer output, parallel Centronics printer output |
| Power Supply: | 230 VAC/ 50-60 Hz (optional 115 VAC / 50-60Hz) |
| Power consumption: | 35 W |
| Dimensions: | 45 x 15 x 35 cm (Wx H x D) photometer section 24 x 48 x 27 cm (Wx H x D) reaction bottle section |
| Required floor space: | approx. 70 x 50 cm (W x D) |
| Weight: | approx. 10 kg |
