WS 9200 – High Performance, Reliable, Easy Integration
If you spend real time in the field, you learn quickly which samplers help, and which ones just add weight to your day. The WS 9200 sits in the first camp: a portable, separate-bottle automatic water sampler built for rivers, lakes, near-shore seawater, and—let’s be honest—the messy reality of industrial outfalls. It’s peristaltic-pump based, MCU-controlled, and handles both time-based and flow-proportional programs. Many customers say the flow-ratio mode is the quiet hero—connect a flow sensor, set ratios, and let it run.
Across the industry, two trends dominate: agencies demanding defensible composites for compliance, and operators needing lighter, battery-forward gear that can survive remote deployments. The WS 9200 runs on DC 12–16.8 V with a standard 14.8 V 7.8 Ah lithium pack—good for field days where power is a rumor. In fact, the peristaltic intake helps maintain sample integrity by minimizing shear and allowing tubing swaps when contamination control really matters.
| Pump/Intake | Peristaltic, reversible purge (typical) |
| Control | Single-chip microcomputer (MCU), programmable time/flow modes |
| Power | DC 12–16.8 V; standard external Li-ion 14.8 V 7.8 Ah |
| Sampling | Discrete or composite; user-set intervals and volumes (≈50–1000 mL typical; real-world use may vary) |
| Inputs | Flow sensor input for flow-proportional ratio sampling |
| Form factor | Portable, separate-bottle sampler; field-ready enclosure |
| Origin | No.188, Fengshou Road, Chang'an district, Shijiazhuang, Hebei, China 050041 |
Set your time interval, sampling volume, and bottle map; purge the line; then let the WS 9200 do the repetitive work. In storm monitoring, the flow-sensor input shines. Users tell me they appreciate the uncomplicated menu and that battery swaps take seconds. For defensibility, log your program parameters and do a quick gravimetric check at commissioning—acceptance criteria in many labs target ±5% volume error under steady head, though site hydraulics can skew this; keep an eye on suction head and tubing condition.
| Model | Sampling modes | Power | Notes |
|---|---|---|---|
| WS 9200 | Time, discrete/composite, flow-proportional | DC 12–16.8 V; ext. Li-ion ≈7.8 Ah | Portable; peristaltic; flow sensor input |
| Portable Sampler A | Time and composite (flow option varies) | 12 V; battery sold separately | Good for basic grab/composites; fewer I/O |
| Portable Sampler B | Time only (entry-level) | AC/12 V | Budget-friendly; limited automation |
Comparison is indicative; specs and availability vary by vendor and configuration.
To be honest, what matters is not just a spec sheet—it’s repeatable sampling that stands up to audits. The WS 9200 keeps that simple.
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