Before Precipitation Chemistry: Automatic Sampling and Preservation
Automatic collection provides samples by event or time. Materials, preservation, records and laboratory handover establish suitability for the analysis task.
View resource →Overview
The UNS 130/E is an automatic wet-only precipitation sampler. A precipitation sensor opens the funnel cover during precipitation and closes it during dry periods. Samples are collected in a single 5 L bottle for subsequent chemical analysis. An optional, separate DSC dry-deposition collector enables combined wet/dry sampling.
Key features
- Automatically operated funnel cover helps exclude dust and dry deposition outside precipitation events.
- A 500 cm² collection area supports sampling for inorganic and acidifying constituents.
- An RS 85 precipitation sensor, thermostatic internal heating and motor-driven cover are supplied in the standard configuration.
- Bottle and funnel materials can be selected to suit the analytical method and required sample capacity.
- The single-bottle design simplifies sample exchange and routine maintenance; an optional stand supports outdoor installation.
Technical specifications
| Parameter | Specification |
|---|---|
| Sampling mode | Automatic wet-only collection |
| Collection area | 500 cm² |
| Standard container | 1 × 5 L PE sample bottle |
| Precipitation detection | RS 85 |
| Power supply / maximum load | 230 VAC, 50 Hz; 250 VA |
| Internal heating | 24 VDC, 2 × 30 W, thermostatically controlled |
| Cover motor | 24 VDC, 50 W |
| Unit dimensions (H × L × W) | 800 × 470 × 350 mm |
| Unit weight | 46 kg, excluding stand |
| Optional stand | 17 kg; working height approximately 1500 mm with stand |
System configuration and options
- A 10 L HDPE container or DURAN glass / PTFE sample bottle can be selected.
- DURAN glass or quartz funnels are available to match the analytical method.
- Optional IRSS 88 infrared precipitation sensor, operating-hour meter, data logger and mounting stand.
- The separate DSC dry-deposition collector is optional, not part of the standard UNS 130/E delivery.
Applications
Environmental precipitation sampling, wet-deposition chemistry and long-term monitoring. A separate DSC collector can be added when wet and dry deposition must be analysed individually.
Selection
Select contact materials and bottle capacity to suit the target analytes and sample exchange interval, then confirm power supply and mounting requirements.