Serving the industry since 1967

N-CON Systems Co., Inc. 130 Old Edwards Road Arnoldsville, GA 30619 800-932-6266

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Sentry Ultra-compact Water Sampler

• Collect composite samples in container of your choice
  
  
• Comply with NPDES and State permit requirements
  
  
• Chill or refrigerate composite sample in ice chest or refrigerator
  
  
• Collect flow-proportioned composite samples
  
  
• Simplify sampling procedures to avoid operator errors and missed samples

 

The Sentry was designed be flexible. It can be used as a portable or fixed location,  wastewater sampler. Composite may be collected simple time or flow proportioned by connecting it to a suitable flow measurement system. or simple composite sample. The addition of  an ice chest or refrigerator to preserve the composite sample, gives you a low cost sampling system. Its no-nonsense design means that you don’t have to be a weight-lifter to carry it, a computer expert to program it, or have an unlimited budget to afford it.

The Sentry composites samples in the sample container of your choice, from one gallon to a 55 gallon barrel. It can also be used to feed a laboratory or pilot plants systems. The  Sentry operates on either line or battery power.

How it Works:

The Sentry placed near the stream or sewer to be sampled.  When installed in a manhole, the sampler is positioned above the high water level.  The sample inlet line is connected to the sampler’s peristaltic (squeeze-tube) pump.  The size of each sample is set with the “SAMPLE ADJUST” knob.  Next, the “SAMPLES PER HOUR” switch is set to collect 1, 2, 4, or 8 samples per hour, or 1 sample every 2 or 3 hours. The FILL CYCLE Switch is set to turn the sampler off after a set period of time. Finally, the “PURGE CYCLE” switch is set to purge before, after, or both before and after sample collection -- a unique power-saving feature.  All switch settings are visible and the system takes the first sample right away so you know it is working before you leave the field. 

Technical Specifications:

CASE Screw-sealed, gasketed fiberglass NEMA 4X, with clear Polycarbonate cover Dimensions: 12-1/2”high, 10-1/2” Wide, 7-3/4” Deep Weight: 10 lbs SAMPLER CONTROL PROGRAMMER Type: Solid state control Easy to use and review controls: Samples per hour switch: 1, 2, 4, or 8 samples/hour or 1 sample every 2 or 3 hours Function switch: Test, Reset, or Set positions with purge selection before, after, or both before and after sample collection Cycle switch: Used to set system to turn off automatically in 3,6,12, 24, 48 or 72 hours. Reset button on side: Resets cycle time when sample is picked up without opening programmer cover. Sample volume sample size between 20 and 500 ML Power switch: AC - OFF - DC Circuit protection: 3 AMP fuse

PUMP Type: Peristaltic Material: Polycarbonate Bearings: Low-friction ball bearings Tubing: Silicone rubber (medical grade) Flow rate: 1350 ML/minute at 3’ head Inlet velocity: 1.5’/second at 3’ head Lift: 20 feet POWER REQUIREMENTS Domestic: 115 VAC, 60 HZ, 12 VDC Export: 220 VAC, 50-60 HZ, 12 VDC Maximum Power: 45 milliamp continuous, 1 ampere intermittent FLOWMETER CAPABILITY Operates in conjunction with any flowmeter providing a momentary unpowered switch closure every preset number of gallons. 4-20 MADC converter is required for analog flowmeter output.

User to  supply Sample container of their choice.

OPTIONAL:

20-038   Inlet tubing: ¼’ID., 3/8’OD clear vinyl with stainless steel inlet weight

19-002  one gallon HDPE jar

19-003  2 gallon rectangular polyethylene

19-005 5 gallon polyethylene

15-508  Battery cable for external, user supplied, 12volt battery

15-010  AC/proportional hook-up cable

11-012PK  Pump Tube pack of 4 spares