Langbo ETC-1000A Programmable Fully Automatic Water Sampler
| Brand | Langbo |
|---|---|
| Model | ETC-1000A |
| Origin | Jiangsu, China |
| Instrument Type | Laboratory Water Sampler |
| Sampling Volume Range | 10–1000 mL per aliquot |
| Control Interface | Interactive Human-Machine Interface (HMI) |
| Programmability | Full Schedule-Based Automation (Time, Volume, Trigger-Based Sequencing) |
Overview
The Langbo ETC-1000A Programmable Fully Automatic Water Sampler is an engineered solution for precise, unattended collection of discrete or composite water samples in laboratory and field-deployable environmental monitoring workflows. Designed around a peristaltic pump-driven fluid handling architecture with chemically inert tubing pathways, the system operates on the principle of positive displacement sampling—ensuring consistent volumetric accuracy without cross-contamination between sequential aliquots. It supports both time-proportional and flow-proportional sampling protocols, enabling compliance with standard methods such as EPA Method 1664, ISO 5667-10, and ASTM D3370 for representative sample acquisition from rivers, wastewater treatment effluents, groundwater wells, and reservoirs. Its modular chassis accommodates up to 24 sample vials (standard 60 mL or customizable formats), with programmable cooling options (optional external chiller integration) to preserve sample integrity for parameters including BOD, nutrients, metals, and organic micropollutants.
Key Features
- Programmable multi-mode operation: Supports fixed-interval, event-triggered (e.g., level sensor or flow meter input), and volume-proportional sampling sequences via intuitive touchscreen HMI
- Precise volumetric control: Adjustable single-aliquot volume range from 10 mL to 1000 mL with ±2% volumetric repeatability under calibrated conditions
- Chemically resistant fluid path: FDA-compliant silicone or Viton® tubing, quick-release pump head, and autoclavable or acid-washable sample probe assembly
- Integrated status monitoring: Real-time display of elapsed time, remaining vial capacity, pump cycle count, and error diagnostics (e.g., tubing occlusion, vacuum loss, vial misalignment)
- Robust mechanical architecture: IP54-rated enclosure with corrosion-resistant aluminum frame and vibration-dampened mounting for stable benchtop or mobile trailer deployment
- Power resilience: Operates on 100–240 VAC, 50/60 Hz; optional 12 VDC battery backup interface for extended off-grid operation
Sample Compatibility & Compliance
The ETC-1000A is validated for use with aqueous matrices across pH 2–12 and suspended solids concentrations ≤ 500 mg/L. It accommodates standard polypropylene, HDPE, and glass vials (including US EPA-certified amber borosilicate bottles). Sample integrity is maintained through minimized air exposure during aspiration and deposition, and optional nitrogen purge capability (via external gas manifold) for redox-sensitive analytes. The system supports GLP-aligned data traceability when paired with compliant logging software: all sampling events—including timestamp, volume dispensed, vial position, and operator ID—are recorded in non-erasable internal memory. Audit trails meet minimum requirements for ISO/IEC 17025:2017 Clause 7.5 and support readiness for regulatory inspections under China’s HJ/T 372–2007 and U.S. EPA Contract Lab Program (CLP) guidelines.
Software & Data Management
The embedded firmware enables configuration and real-time supervision via a 5.7-inch resistive touchscreen with multilingual UI (English, Chinese, Spanish). All method parameters—including start delay, interval duration, number of cycles, and conditional triggers—are stored in encrypted project files. Raw event logs export via USB 2.0 to CSV or XML format for integration with LIMS platforms (e.g., Thermo Fisher SampleManager, LabVantage). Optional PC-based Langbo SamplerControl Suite (v3.2+) adds remote monitoring over Ethernet/Wi-Fi, automated report generation (PDF/Excel), and electronic signature support compliant with FDA 21 CFR Part 11 Annex 11 requirements for electronic records and signatures.
Applications
- Wastewater treatment plant influent/effluent monitoring per national discharge standards (e.g., China’s GB 18918–2002)
- Surface water quality assessment in ecological surveys and long-term trend studies
- Groundwater plume tracking during site remediation projects
- Regulatory compliance sampling for municipal drinking water source protection programs
- Research-grade sample collection in limnological and hydrological field campaigns
- Calibration verification of online water quality sensors (e.g., conductivity, turbidity, nitrate)
FAQ
Can the ETC-1000A be integrated with external flow meters or level sensors?
Yes—dedicated dry-contact and 4–20 mA analog inputs enable direct synchronization with third-party hydraulic instrumentation for flow-proportional sampling.
Is tubing replacement required after each sampling campaign?
No—tubing lifespan exceeds 500 hours of continuous operation under typical lab conditions; routine visual inspection and pressure-drop verification are recommended per maintenance schedule.
Does the system support composite sampling with variable volume increments?
Yes—programmable “step-volume” mode allows incremental aliquot sizes across a sequence (e.g., 100 mL → 250 mL → 500 mL) to optimize vial usage and analytical detection limits.
What cybersecurity measures are implemented in the network-enabled version?
Firmware includes TLS 1.2 encryption for remote sessions, role-based user access control (Admin/Operator/Viewer), and automatic log rotation with SHA-256 hash integrity verification.
Is validation documentation available for IQ/OQ protocols?
Yes—Langbo provides a complete GxP-ready Validation Support Package, including URS template, FAT/SAT checklists, and calibration certificate traceable to NIM (China National Institute of Metrology).
