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Thank you for purchasing a YSI portable automatic sampler. Samplers in the ProSample series are designed to collect
field samples and to provide temporary storage before they are analyzed in a laboratory.
The ProSample portable automatic samplers are designed for use in surface water, stormwater, and wastewater
applications. These samplers can be used in a variety of scenarios, most of which are described in this manual. If
you have a question regarding the use of a sampler in your project, please contact YSI (
authorized YSI distributor.
There are four samplers in the ProSample series. Content in this user manual applies to all ProSample models unless
otherwise noted. ProSample models include:
• ProSample P
: full-size portable sampler
• ProSample P-12
: full-size portable sampler with SDI-12 connectivity
• ProSample PM
: mini portable sampler
• ProSample PM-12
: mini portable sampler with SDI-12 connectivity
Composite sampling can be completed with all ProSample models. In this type of sampling, a single container is used
to collect multiple samples, resulting in a mixture of all samples collected.
Discrete sampling can be completed with the ProSample P and ProSample P-12. In this type of sampling, samples are
placed in different bottles. There are several bottle configurations available for the purpose of discrete sampling.
All ProSample models have the following features:
• Robust PE, double-walled, insulated housing for temperature control.
• Easy tube replacement for minimal downtime.
• Spring-loaded roller bearings in the peristaltic pump providing long tubing life.
• Highly accurate sample volume using two capacitive sensors in the peristaltic pump for volume control.
• Simple programming and calibration.
• Long battery life.
• Non-volatile data memory for up to 5 years, so you never have to worry about losing your data if power is lost.
Intended Use and General Overview
Intended Use and General Overview
