Portable Automated Sampling

WS Porti Mobile Sampler

The WS Porti is a battery-operated sampler for remote locations, combining portability with renowned WaterSam quality. Thanks to the modular design, transportation is made easy and various sample bottle storage options can be used.

  • Built-in battery allows use away from mains power
  • Up to 3 week battery run time thanks to sleep mode and efficient technology
  • Robust and durable stainless steel sampler housing
  • Standard-equipped with quality vacuum pump system and 12 mm suction line for reliable sampling of a variety of media
  • Optional compressor refrigeration with the ability to connect to vehicle socket for an uninterrupted cold chain during transport
  • Possibility of connection to various water quality sensors
  • An additional transport box enables quick replacement of full bottles
WS Porti Mobile Sampler


WaterSam controllers feature user-friendly operation and reliability. Both controller types not only enable to the activation of programs at the same time, they can be also run simultaneously.
Custom software modifications can easily made upon request.

WS Porti Mobile Sampler

Standard Controller

The standard WaterSam controller is suitable for a wide variety of applications. Its 4-key user interface is easy to operate, and yet it offers the possibility of running up to 9 sampling programs at the same time. In addition, the standard controller has multiple menu levels, enabling the user to set a code that restricts access to certain menus. The 4 analog inputs and 10 digital inputs enable time-, volume-, flow-, and event-proportional sampling.
A built-in RS-232 serial port permits communication with external devices. With an optional modem, even remote control is a possibility.

WS Porti Mobile Sampler


The WaterSam MS3 controller offers user-friendly operation in addition to a range of communications possibilities and the ability to retrieve data from internal and external sources.
Despite the wide-ranging possibilities available, sampler operation is very user-friendly thanks to the 24 keys and large graphic display. Color-coded direct function keys serve to start, pause and stop selected programs. A grab sample can be taken simply by pressing the blue key.
Intelligent sensors can be connected directly to the controller, without the need for a transmitter. If desired, a variety of data can be accessed and retrieved via a USB port.

Sampling Systems

Depending on conditions and requirements, samplers are available with diverse sampling systems:

Sample Distribution

Interchangeable bottom sections for sample distribution and storage
The WS Porti is compatible with several different bottle storage options, which can easily be switched.
By purchasing a second cooler or transport box, samples can be brought to the lab while the sampler continues to fill another bottle set.
The ability to plug a compressor cooler in to a 12 V DC vehicle socket ensures that samples continue to be kept cool during transport.

Passive/without Cooling

Composite container (no distributor):

  • 6.4 / 10 l PE

E.g. for multiple day samples
during the weekend:

  • 2 x 5 l PE

E.g. for hourly samples:

  • 12 x 1 l PE / 0.9 l glass
  • 24 x 1 l PE / 0.9 l glass
WS Porti Mobile Sampler

Active Cooling

Composite container (no distributor):

  • 6.4 / 10.4 l PE

E.g. for multiple day samples
during the weekend:

  • 2 x 4 l PE
  • 4 x 6.4 l PE

E.g. for hourly samples:

  • 12 x 1 l PE / 0.9 l glass
  • 24 x 1 l PE / 0.9 l glass
WS Porti Mobile Sampler


Housing Equipment

  • Transport cart
  • Lockable front cover

Others upon request

Technical Equipment

  • Connection sockets
  • Peristaltic pump
  • Data logger (for saving sampling data, monitoring data from internal measuring instruments and/or external on-line sensors)

Others upon request


  • GSM modem for remote operation, SMS and Program start via Mobile telephone, complete access to sampler software via PC / Laptop
  • Profibus-DP
  • Signal relays (general error alarm, bottle changed, sample taken, program started, program stopped, return of power after outage)

Others upon request

Sampling Components

  • Conforming of materials for the sampling line (intake hose, sampling system, distributor hose, sample bottles) e.g.: PTFE, PVDF, FPM.
  • Numerous sample containers with a variety of capacities and materials.
  • Positioning armature for intake hose
  • Filter basket

Others upon request

Technical Specifications

WS Compact

GeneralPortable sampler for indoor and outdoor applications
(H x W x D)
640 x 505 x 450 mm
WeightApprox. 17.5 kg (incl. batteries and composite container)
Power RequirementsMains power: 110 - 240 V AC; 50 / 60 Hz
Battery: 24 V DC


Housing MaterialsHDPE
Environmental ConsiderationConstruction facilitates easy separation of materials for proper recycling and disposal

Sampling (Standard System)

Sampling SystemVAC vacuum pump system for time-, volume-, event-proportional sampling
Sample Volume12 - 200 ml; multiple-shot sampling possible
Optional: 400 ml
Metering VesselDURAN 50 borosilicate glass; dishwasher-safe, resistant to acid, alkali, and temperature fluctuations
Pump PerformanceMax. 7 m lift height;
-0.7 to 1 bar; 9 l/min free flow
Intake Hose12 mm ID PVC
Wetted PartsBorosilicate glass, PE, PVC, stainless steel 304/316Ti, silicone (optional: alternative materials as required)

Temperature Control (with Active Cooling)

Compressor Cooling12/24 V DC; 6 A with battery monitor
(requires external battery)
100-240 V AC; 1.3-0.7 A
CFC-free refrigerant R134a
Internal TemperatureAdjustable from -22 °C to +10 °C
Hourly Run Times atTypical data for 12 V DC / 230 V AC:
12% (power draw
Ti=5°C Ta=20°C
7.5 A DC / 0.7 A AC)
22% (power draw
Ti=5°C Ta=32°C
7.5 A DC / 0.7 A AC)