The American Sigma900 and 900MAX series samplers provided by Hash Company have advanced technology and high-quality customer service, and they have the precision, simplicity, flexibility, reliability, and economy that customers are concerned about. The 900 sampler is suitable for timed and equidistant volumetric sampling, as well as flow rate proportional sampling; The 900MAX sampler can meet higher sampling requirements, such as monitoring the overflow of the sewer of rainwater sewage confluence, monitoring the rainstorm outfall, conducting biological monitoring, or conducting water quality research. The American Sigma900 and 900MAX models are available in three designs: portable sampler, refrigerated sampler, and all-weather sampler.

Portable sampler, weighing only 28 pounds, comes with a lifting handle that is easy to move. According to the sampling requirements, it can be configured for single bottle or multiple bottle sampling. Equipped with an interchangeable compact base and standard size base, the compact base is designed for sampling in 18 inch sewer manholes and can hold 8-1/2lbs Heavy ice and 24 575ml bottles; The standard base can hold 32lbs Heavy ice and 24 350ml bottles, the light beige color of the sampler helps reflect sunlight and prolong the shelf life of the ice cubes. The collected samples are stored in a double-layer insulated base and kept at a low temperature. In addition, it is convenient to set the parameters of the sampler on site.

The refrigerated sampler is fixed for use on site and can work normally in humid and corrosive environments. The refrigeration machine is made of stainless steel material. Refrigeration temperature is controlled by air induction temperature regulation. Efficient compressor, condenser, evaporator and tight foam isolation device ensure the optimal 4 ℃ water sample temperature. Forced air blowing and front ventilation allow the sampler to be flexibly placed next to the wall or inside the sampler casing. The keyboard, switch, and display screen all have waterproof and corrosion-resistant functions, and the sealed connectors and pump shaft ensure that the sampler is not affected by the environment it is in.

The all-weather refrigerated sampler can ensure that the storage temperature of water samples is at 4 ℃. The compressor is placed at the top of the sampler to prevent damage from hydrogen sulfide and other corrosive gases heavier than air. The sampler is equipped with a high-strength, chemically resistant outer cover, which can better protect the refrigeration pipeline from moisture and corrosive gases. The system's sensors continuously monitor the temperature of the evaporator, ambient air, and sample liquid, and the microprocessor controls the temperature rise of the water sample chamber. The all-weather refrigerated water quality sampler provides refrigerants that are environmentally friendly and free of Freon.

The representativeness and authenticity of the sample

The most basic requirement for water quality sampling is to obtain representative water samples in the water system. Using the Amercian Sigma series sampler, accurate and reproducible data required for water quality management can be obtained, and the water quality status can be understood at any time.

Reliable peristaltic pump technology

The American Sigma series sampler uses a positive phase shift peristaltic pump to resist corrosion with Delrin ® Made from Delrin, also known as polyoxymethylene resin. Pump relies on squeezing a 3/8in Inner diameter hose, allowing water flow into the sampler (only the tube comes into contact with the liquid). The American Sigma series sampler can operate within an inner diameter of 3/8in In the inlet pipeline, at 3ft Provide 3.3ft within the lifting distance/ The flow rate of sec.

Advanced liquid detection technology

The non-contact ultrasonic liquid sensing system can ensure accurate sampling volume and repeatability of sampling. Compared with pressure sensing systems, non-contact ultrasonic liquid sensing systems can work normally in situations where liquid temperature changes greatly. In addition, the non-contact ultrasonic liquid sensing system can ensure that the collected samples are not contaminated. For example, the inlet pipeline is thoroughly cleaned before and after each sampling. To avoid cross contamination, pipeline cleaning can be conveniently carried out, and the inlet can be pre treated with the collected water sample before sampling. If the entrance is blocked and the sampling cannot work properly, the sensor can immediately detect the fault and perform high-pressure purification, and then start a new round of sampling. The American Sigma series samplers ensure accurate sampling with minimal errors.

Technical indicators:
Table 26 Overall Technical Parameters of 900 Portable Sampler

Table 27 Overall technical parameters of 900 all-weather sampler

Table 28 Overall Technical Parameters of 900 Type Refrigerated Sampler