Description
Overview
GAOTek portable colorimeter water photometer used for the concentration determination of residual chlorine, total chlorine, chlorine dioxide, ozone, ammonia nitrogen in water samples with simple and quick operation and high sensitivity. With lightweight, easy to carry, delicate and compact design, it saves space for you. It is suitable for site and field use in municipal water, medical water, public health, environmental monitoring and other industries, bringing you a new working experience.Â
Features
- Pre-stored standard curveÂ
- Good optical stabilityÂ
- Easy to carryÂ
- IP65 degree of protectionÂ
- Economical and environmentally friendlyÂ
- Intuitive operationÂ
Technical Specifications
| Test Item | Residual Chlorine, Total Chlorine, Chlorine Dioxide Ozone, Ammonia Nitrogen, Phosphate |
| Measuring range | 0.05 mg/L to 10.00 mg/L, 0.1 mg/L to 5.00 mg/L, 0.05 mg/L to 2.50 mg/L, 0.01 mg/L to 10.00 mg/L, 0.00 mg/L to 2.00 mg/LÂ |
| Wavelength | 420 nm, 520 nm, 620 nm |
| Principle | Reference to HJ586-2010 National Environmental protection standard “Water Quality Determination of Free Chlorine and Total Chlorine N, N-diethyl-1,4-phenylenediamine Spectrophotometric Method” DPD photometric method, chlorine dioxide reacts with DPD reagent to make the sample solution appear red. DPD photometric method, chlorine dioxide reacts with DPD reagent to make the sample solution appear red. Nessler’s reagent photometry Ammonium moly date spectrophotometry |
| Accuracy | <1.0 mg/L, ≤ ±0.05 mg/L, ≥1.0 mg/L, ≤ ±5% |
| Light source | LED light emitting diode |
| Battery life | More than 24 hrs (without shutdown)Â |
| Size | 5 in x 2.7 in x 1.8 in (128 mm x 70 mm x 48 mm)Â |
| Weight | 6.6 oz (188 g) (including battery)Â |