Extraordinary Flexibility in a Compact Unit

WS 98 Wall-Mount Sampler

The WS 98 is a compact sampler for indoor applications that do not require cooling. It features the same range of functions as larger, stationary samplers.

  • Typical WaterSam quality and performance in a compact package
  • Housing made of high-value 316Ti stainless steel as standard; well suited for use in demanding environments
  • Compatible with all WaterSam sampling systems; even as a douple sampler for sampling from two different points
  • Suitable for refitting existing samplers (including those from other manufacturers); optionally with connections such as cooling, etc.
  • Can be combined with a commercially available refrigerator for low-cost cooling of composite samples
  • Optional XY Distributor in a support frame for discrete sample distribution to a variety of bottle combinations
  • Optional rinsing of complete sampling line with clean water
WS 98 Wall-Mount Sampler
WS 98 Wall-Mount 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 98 Wall-Mount 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 98 Wall-Mount 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

Direct Bottle Filling with Numerous Possibilities
Our XY Distributor system has been in use successfully for nearly 20 years. Its wide array of possibilities, reliable operation and minimal follow-up costs have made it the distributor of choice among our customers. The two-axis system makes full use of the entire sample storage chamber by using coordinates to travel and locate bottle positions.

With XY Distributor

Discrete samples:

  • 4 x 10.4/15.4/20/25 l PE
  • 5 x 12 l PE
  • 14 x 4 l PE
  • 16 x 2.9/4 l PE
  • 16 x 2 l glass
  • 24 x 2 l PE
  • 36 x 1 l PE
  • 36 x 1 l glass
  • 49 x 1 l PE
  • 49 x 1 l glass
  • 64 x 350 ml

Discrete + composite samples:

  • 12 x 2.9 l  +  1 x 12 l
  • 24 x 1 l  +  1 x 12 l

Composite Containers
(without Distributor)

  • 10.4 l PE
  • 15.4 l PE
  • 20 l PE
  • 26.4 l PE

The use of custom bottle combinations and/or client-specific bottles is possible

WS 98 Wall-Mount Sampler


Housing Equipment

  • Carriage with castors
  • Drawer tray for sample containers
  • Power socket installed in housing

Others upon request

Technical Equipment

  • Main power switch
  • Connection sockets
  • Residual-current circuit breaker
  • Various vacuum pumps
  • Peristaltic pump
  • Rotatary distributor
  • Data logger (for saving sampling data, monitoring data from internal measuring instruments and/or external on-line sensors)
  • High-performance pump and pn. pinch valve package
  • Heavy-duty pump and valve package for corrosive media / environment
  • Inlet hose heating

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.
  • Metering vessels with alternative volumes (e.g. 200 / 350 / 500 / 750 / 1000 ml)
  • Numerous sample containers with a variety of capacities and materials
  • Drain position and rinsing with clean water
  • Positioning armature for intake hose
  • Filter basket

Others upon request

Technical Specifications

WS 98

GeneralWall-mount sampler for indoor applications
NormsCE, compliant with ISO 5667
DimensionsHxWxD: 340 x 472 x 190 mm
WeightApprox. 12 kg, depending on equipment
Power Requirements230 V AC; 50 Hz
Main fuse: 4/10 A
OutputApprox. 60 VA

Sampling (Standard System)

Sampling SystemVAC vacuum pump system for time-, volume-, event-proportional sampling
Optional: VAR-B, VAR-E, VAR-C or peristaltic pump for flow-proportional sampling (variable volumes)
Sample Volume15 - 350 ml (multiple-shot sampling possible)
Optional: larger volumes, up to 1000 ml
Metering VesselDURAN 50 borosilicate glass; dishwasher-safe, resistant to acid, alkali, and temperature fluctuations
Pump PerformanceMax. 8 m lift height;
0.5 m/s up to 6 m lift heights;
14 l/min free flow
- high-performance pump (19 l/min)
- VacuPress for lift heights up to 30 m
Intake Hose12 mm ID PVC (optional: 16 mm ID)
Wetted PartsBorosilicate glass, PE, PVC, stainless steel 304/316Ti, silicone (optional: alternative materials as required)
Other SystemsSee "Sampling Systems"


MaterialStainless steel 316Ti
– Powder coating (RAL colors)
– Plastic (UV-resisant)
Environmental ConsiderationConstruction facilitates easy separation of materials for proper recycling and disposal

Distributor (optional)

DistributorXY Distributor: two-axis coordinate system for direct depositing of discrete samples with no cross-contamination (only available with optional support frame)
Bottle SynchronizationAutomatic
Sample Bottles & SetsSee "Sample Distribution“