WS Series Auto Samplers

WS Series Auto Samplers

YSI's WS700 single- and WS750 dual-bottle samplers combine all the features you need to meet various sampling requirements, including those for Stormwater, rivers and streams, industrial discharge, water and wastewater treatment, and wastewater collection.

If your samples need to be refrigerated, the WS700R model is ideal. It provides the same sampling functions and needs but with the added benefit of refrigerating your sample.

YSI's WS705 and WS755 models provide the exact same functionality but come with enhanced portability accessories, such as more ergonomic handles and durable wheels.

All WS Series Water Samplers Include:

  • 15' of sampling hose
  • intake strainer for each pump
  • Sampler Float Switch
  • 1-gallon polybottle for each pump (WS750, WS755)
  • 2.5-gallon polybottle for each pump (WS700, WS705)
  • Rechargeable Battery
  • Rechargeable Charger

Sample Size

User can adjust the wastewater/stormwater sampler's peristaltic pumps individually to one of 15 composite sample sizes from 50ml to 2 liters plus a full bottle discrete setting. The wastewater/stormwater sampler's peristaltic pumps can be set to a single sample time interval from 5 minutes to 12 hours plus an external trigger mode setting for flow proportional sampling.

Collection Control

Trigger inputs to control sample collection. The sample bottles are each equipped with a float switch that automatically turns off the peristaltic sampling pump if the water bottle becomes full.

Two-In-One

Does composite or discrete sampling or both simultaneously (WS750 & WS755)

Automatic Backflush

Automatic Backflush clears pickup strainer and hose.

Low Power

The composite/discrete water sampler's 5 AH rechargeable battery will power it for several months or a half hour of continuous sampling with both pumps. The units can also be plugged into an external battery source.

Range of Features and Options

WS Series of samplers has the functionality to add additional data logger options, sensors, and pumps for more ease of use, for example:

  • Sampler Rain Sensor
  • BC100 Smart Battery Charger

Specifications

Sampler Selection ChartWS700WS705WS750WS755WS700R
Time or Flow Weighted Sampling YesYesYesYesYes
Rugged EnclosureYesYesYesYesYes
Outputs for Data Loggers and Sensors   YesYesYesYesYes
1 PumpYesYesYes
2 PumpYesYes
Composite OR Discrete SamplingYesYesYes
Composite AND Discrete SamplingYesYes
Enhanced PortabilityYesYes
RefrigeratedYes
WS Series Specifications
Operating Temperature0° to +70°C
MaterialsEnclosure: Expanded UV protected PVC
Bottle: 2.5 gallon Polyethylene (WS700, WS705 & WS700R), two 1-gallon Polyethylene (WS750 & WS755).
Pickup Hose: 15' reinforced PVC 1/4" ID polyethylene flexible tubing section with intake strainer.
Pump Tubing: Norprene 1/4" ID, 7/16" OD
Sample PumpFlow Rate: 1000 ml per minute at a 4 foot head
Type: Peristaltic
Maximum Lift: ~20 feet
BatteryRechargeable 5 AH Gel Cell
Battery LifeWS700 & WS705: ~1 hour continuous pumping under load
WS750 & WS755: ~1/2 hour continuous pumping under load
Standby: 3 months while still retaining enough power to run the pump to capacity is required.
Start Delay16 time settings from 0 to 12 hours
Composite Interval15 time settings from 5 min. to 12 hours plus an external trigger mode setting.
Sample Size15 composite sample sizes from 50 ml to 2 liters plus a full bottle discrete setting (approximate sizes at 4 foot head)
External Trigger Input(s)250 mS minimum pulse width switch closure or 4 to 24 VDC
Pulse Output(s)5 VDC one-second pulse, 1000 ohm output impedance
Bottle Switch Input(s)Switch closure input, float switch in bottle
Rain and Water SensorsOptional moisture sensors or switch closure inputs
Internal Fuse10A Slow-Blow
CertificatesCE Compliance
DimensionsWS700, WS705, WS750, WS755: 22"H x 17"W x 9"D (56 x 43 x 23 cm)
WeightWS700 & WS705: 20 lbs/9 kg (shipping weight 22 lbs/10 kg)
WS750 & WS755: 22 lbs/10 kg (shipping weight 24 lbs/11 kg)

Accessories

  • 20-Mesh Pickup Strainer Assembly
  • Tubing, Standard Sampler Pump
  • BC100 Smart Battery Charger
  • Sampler Rain Sensor
  • Tubing, Sampler, Pick up 1/4" ID, Clear
  • Sampler Battery Cable
  • Sampler Float Switch, 1 Gallon
  • 1 Gallon Plastic Container
  • XFRMR-AC/DC Wall Mount 18VDC 330mA