N-Con Systems - MDN 00-125-4

By: N-con Systems Co  11-11-2011
Keywords: Drive Motor, Precipitation Chemistry, Wet Deposition,

  NADP approved for NTN Sites

Closed cover sealing sample collection container

Open cover resting on splash shield

  • Compact to minimize splash area

  • Prompt opening and closing of sample container

  • Does not “hunt” under marginal precipitation conditions

  • Reliable, heavy duty cover drive motor

  • Easy mounting

  • Operates on 110VAC/220VAC or 12VDC

  • Simple maintenance 

  • Plug & Play replacement parts

  • Responsive to light snow, drizzle or heavy fog

How it Works:

The infrared, optical precipitation sensor detects the onset of precipitation and uncovers the sample container within five (5) drops.  Within two minutes, after precipitation stops, cover returns to sample container to minimize exposure to dry deposition.  Sensor also detects drizzle, heavy fog or light snow, which may carry significant amounts of deposition.

Collection of uncontaminated wet deposition samples is essential to precipitation chemistry validity.  Compact design minimizes splash from exterior surfaces.  In areas with high wind, the sampler may be fitted with an optional Alter Screen.  The compression seal on the underside of the cover prevents leakage of dry deposition in to the container and retards sample evaporation.  When the cover System is opened the underside is protected from ground splash by a shield that covers, but does not contact the seal.

Reliability is essential to the collection of valid samples. The ADS/NTN runs interchangeably on either line power (110VAC or 220VAC) or (12VDC) with an optional external power converter. Cover drive is rated for 20 years of typical service.  All parts are easy to replace without special tools.

The ADS/NTN is mounted on a 2” NPS pipe by a socket secured with 2 set screws, so that it may be easily rotated.

The sampler also provides a 4 conductor cable to connect to an unpowered auxiliary contact that closes during precipitation events.  This contact can operate a user furnished data logger and/or event recorder pen in a Belfort Universal Raingage.  System will also interface with a variety of electronic, weighing rain gages.

A normally open contact is also provided for monitoring power continuity.

Technical Specifications:


Capacity: 3.5 US Gallons
Material: Rigid Polyethylene, with carrying handle
Cover: Snap-on lid with “O” ring seal
Furnished: 1 each


Type: Infra-red transmitter and receiver
Opening: Within 5 drops of onset of precipitation
Closing: Within 2 minutes of end of precipitation


Two unpowered, normally open contacts
1 Contact is closed for the duration of sampling event
1 contact is closed to indicate power to system is on

16” (41cm) Wide 
15” (38cm) Deep  (less sensor)
24” (61cm) High


Net:  36 Pounds (16 Kg)
Shipping: 55 Pounds  (25Kg.)


Direct mounting on 2” NPS pipe
(2.375 Dia. 68mm Dia.)
With mounting collar and set screws


Control Housing:
Aluminum (5052H32) .125”
White polyester powder coat

Sample Container Cover:
Aluminum (5052H32) .090”
White polyester powder coat

Keywords: Drive Motor, Precipitation Chemistry, Wet Deposition,

Contact N-con Systems Co


Print this page


Other products and services from N-con Systems Co


N-Con System - Scout Spare Parts

Auxiliary battery cable 3ft with connector & clips for use with customer supplied battery. Gallon High Density Polyethylene sample container with top. Battery Charger 6 amp/hr 4A 1-4. Pump tube for 7015 pump.