Composite sampling devices are fully automatic systems designed for regular monitoring of process outlets or industrial discharge points in wastewater treatment plants. These devices enable samples to be taken at certain time intervals or depending on certain flow increases. The collected samples are combined as a single composite sample at the end of the specified period. The sampling process is vital for monitoring the performance of treatment plants, compliance audits (SKKY, ISO 5667, EPA 40 CFR 136, etc.) and the accuracy of laboratory analyses. Our devices are equipped with high-precision peristaltic pump system, refrigerated sample storage, automatic timer and smart control unit.
The device takes samples at intervals determined by the operator (e.g., every 15 minutes).
Each sample is transferred to the sample container and a composite sample is created over time.
The device monitors the flow signal on the line (e.g., from a Parshall flume or ultrasonic flowmeter).
It takes a sample at a certain volume (e.g., every 5 m³ of water passage).
In this way, a composite sample reflecting the real average quality is obtained by taking more samples during high flow hours and fewer samples during low flow hours.
The sampling line operates with a peristaltic pump or vacuum suction system. The sampled water is transferred to a special refrigerated storage container; this container is usually kept at 4 °C and prevents deterioration. All operations are managed through the PLC control unit; the operator can easily program the device, and the operating mode and intervals can be changed.
IP55 protection class electrical panel
Earth leakage protection relay, fuse group
230 V / 50 Hz standard supply (optional 24 V DC)
Low voltage alarm and emergency stop circuit
Maintains cabin interior temperature in cold climates.
Energy-independent operation in areas without electrical grid.
Monitors suction line fullness.
Automatic communication with Parshall flume or ultrasonic flowmeter.
Reporting via USB or remote access.
Creates homogeneous composite sample in multi-bottle systems.
Lightweight body, field operation capability with 12 V battery or accumulator.
Ease of visual control.
SMS or email alert via GSM module.
Municipal wastewater treatment plants (inlet / outlet water sampling)
SKKY-compliant discharge control in industrial facilities
Continuous monitoring stations in organized industrial zones
Drinking water production facilities (inlet and outlet quality control)
River, lake and surface water quality monitoring systems
Laboratory automatic sampling systems
Mobile analysis stations
Fully automatic, precise and repeatable sampling
Programmable modes according to time or flow
High sample quality with refrigerated storage
Low energy consumption and long-term uninterrupted operation
IP protected, durable body suitable for outdoor environment
Self-cleaning suction line
Simple maintenance, quick hose replacement and user-friendly interface
Traceability with remote monitoring and data recording
Composite sampling devices are a fundamental component of quality control and environmental compliance in treatment plants. Thanks to these devices, the chemical and physical properties of discharged water become objectively, regularly and legally monitorable. Composite sampling devices produced by our company are a long-lasting solution with high-precision peristaltic pump system, smart control unit, data recording, refrigerated sample protection and high field-resistant body. Whether used in the laboratory or mobile in the field; the system is designed with the principles of full compliance with regulations, uninterrupted operation and high reliability. Our composite sampling devices combine measurement quality, traceability and environmental responsibility in modern treatment plants.