• brief introduction

The BWS-320 model is an automatic instrument that integrates water quality sampling, sample supply, and sample retention. This product is based on a self-designed refrigerator for water sample preservation technology. It uses a sampling pump to continuously sample water samples, and achieves water sample mixing and time difference through two buckets F and B. It provides an average water sample for a period of time to the online instrument, and can also achieve power-off monitoring. It is also an instrument that can store water samples that exceed the standard at low temperatures. This product fully meets the technical requirements of HJ/T 372-2007 Water Quality Automatic Sampler and Testing Methods.

• characteristic

       The interface is simple, easy to operate, and easy to learn;

       Remote control of instrument start stop and parameter settings;

       Capable of multiple modes such as time/flow proportional sampling, mixed sampling, etc;

       Rinse the sample pipeline with raw water to reduce cross contamination caused by residual substances in the pipeline;

       Having rich external interfaces and seamless integration with monitoring instruments;

       Built in electronic lock, power-off self-locking, door opening record, ensuring water sample safety;

       The instrument can automatically restore its original operating state when powered off and then back on during operation, and the instrument parameters will not be lost after power failure;

        Built in micro printer, capable of printing sample information (optional).

• application

Widely used in environmental pollution source monitoring, industrial process water monitoring, municipal sewage treatment, surface water monitoring, etc.

• specifications

       Sampling interval: 1min to 9999min, adjustable

       Number of sample bottles retained: 24 bottles

       Single sample retention volume: 10-1000mL

       Sample retention error: ± 7% (when retaining 200mL of sample)

       Equal proportion sample retention error: ± 8%

       Built in sampling pump suction: ≥ 6.5m

       Horizontal sampling distance: ≥ 60m

       Water sample storage temperature: 0 ℃~4 ℃ (± 1.5 ℃)

       Pipeline system airtightness: ≤ -0.07MPa

       Mean Time Between Failures (MTBF): ≥ 1440h/time

       Insulation impedance: ≥ 20M Ω

       Analog interface: 4mA~20mA/0.5V~2.5V

       Digital input interface: switch quantity

       Flow measurement access form: flow meter analog signal

       Dimensions: 446mm × 500mm × 1400mm

       Weight: 60kg

       Average power: 75W

       Working voltage: AC220V ± 10%, 50Hz ± 1Hz

       Working temperature: 5 ℃~40 ℃

       Working humidity: ≤ 85% RH