Specifications
| Measurement Range | LR(P1)：O-250mg/L(ppm)CaCO₃；MR(P2)：200-500 mg/L(ppm)CaCO；HR(P2)：400-750mg/L(ppm)CaCO₃ |
| resolution | 1 mg/L |
| Accuracy @25 ℃ | LR: reading +/- 4% +/- 5mg/L; MR: reading +/- 3% +/- 7mg/L; HR: reading +/- 2% +/- 10mg/L |
| Method standard | Refer to EPA Recommendation 130.1 |
| light source | Light Emitting Diode |
| Light Detector | Photocells, photovoltaic cells |
| bandwidth | 8nm |
| Bandwidth Accuracy | ±1.0 nm |
| data storage | 50 readings (automatic) |
| Power Supply | 3X1.5V AA alkaline battery |
| Automatic shutdown | After 15 minutes of inactivity |
| Applicable environment | 0 to 50 ℃; RH-max 100% (non-condensing) |
| Dimensions | 142*102.5*50.5mm |
| Weight | 380g |
| Measurement parameter | Total hardness |
Packing list
machine X1, manual X1, certificate X1, warranty card X1
After-sales instructions
Warranty days: 365 days
1. For product quality problems caused by non-human products of instruments and equipment, the manufacturer will provide free warranty services during the warranty period;
2. There is no warranty period for fragile and consumable parts, and if you find product quality problems after receiving the goods, please apply for return and exchange within 7 days, and you will not wait for the overdue ones;
[Note] For after-sales services outside the Chinese mainland, if the instrument requires repair, the shipping and possible associated taxes shall be borne by the sender. Generation address of the manual: http://en.nbchao.com/p/45267/Specification.html , which is only used by users who purchase commodities from the NBCHAO.