NovaLynx Corporation

The 260-2500 Tipping Bucket Rain Gauges are dependable instruments used for measuring precipitation. Rainfall entering the 8" or 12" funnel collector is directed to the tipping bucket assembly. When an incremental amount of precipitation has been collected, the bucket assembly tips and activates a magnetic reed switch. The sample is discharged through the base of the gauge. A momentary electrical contact closure is provided for each increment of rainfall. This contact closure is used to operate the 260-6113-A Event Recorder or other data acquisition systems. A level is provided on the base for correct positioning of the unit. The unit is manufactured of anodized aluminum and powder coated aluminum. The funnel has a screen to prevent debris from entering the gauge. It is shipped complete with mounting brackets and 25' of cable.

The Model 260-2500E Electric Heated Rain and Snow Gauge is used where 115V power is available and precipitation is often in the form of snow. A heating kit has been added to the basic 260-2500 Rain Gauge to provide the capability for measuring snowfall. The 260-2500E has a 400 watt heater unit installed on the base of the rain gauge. The outer tube is insulated and a freeze point thermostat controls the temperature at the funnel. Snow falling into the funnel is melted and the resulting water drains into the tipping bucket assembly. It includes 25' of power cable and 25' of signal cable.

The 260-2501 Tipping Bucket Rain Gauge was designed for the National Weather Service to provide a reliable, low-cost tipping bucket rain sensor. Its simplicity of design assures trouble-free operation, yet provides accurate rainfall measurements. The tipping bucket mechanism activates a sealed reed switch that produces a contact closure for each 0.01", 0.25 mm, or 1 mm of rainfall. The gauge has an 8" orifice and is manufactured of powder coated and anodized aluminum. The funnel screen prevents debris from entering the gauge. Shipped complete with mounting brackets and 25' of signal cable.

Our WeatherPort Wind Sensors are moderately priced quality transducers designed for general application. A combination of injection molded thermoplastic, anodized aluminum, and stainless steel parts contribute to reliable operation even in adverse environments.

These sensors are easy and inexpensive to maintain. The combination three cup anemometer and wind vane units utilize an in-line configuration, eliminating the need for a crossarm.

The anemometers produce a series of output pulses having a frequency directly proportional to wind speed. Wind direction is measured by a balanced vane coupled to a 20k ohm conductive plastic potentiometer. With a constant excitation voltage of less than 15 volts, the output from the wiper arm is proportional to the wind azimuth angle.

The 110-WS-16 Modular Weather Stations are computer-based meteorological systems designed as a "user friendly" solution for data storage and real-time monitoring of weather conditions. The standard package includes:

Wind Speed
Wind Direction
Air Temperature
Relative Humidity
Barometric Pressure
Precipitation
Data Logger
Tripod and Sensor Mast
Solar Radiation Shield for temp/humidity sensor
Cables and Mounts
Set-up Disk

Additional sensor options include solar radiation, water or soil temperature, auxiliary air temperature, rain gauge upgrade, wind sensor upgrade, evaporation, soil moisture, water level, gas detection, and others.

The unique modular system design provides simple menu selections for adding or replacing sensors. The 110-WS-16D Data Acquisition Module features nonvolatile memory, selectable averaging intervals, 12 bit analog conversion, 0.1% F.S. accuracy, two alarm outputs, and optional modem communications.

The 110-WS-18 Portable Weather Station is designed for applications in which weather data is required for a temporary period. The complete system is housed in a weatherproof case weighing approximately 20 pounds and can be deployed by one man in less than five minutes without the use of tools. Sensors are pre-wired for quick deployment and ease of installation. Just turn on the power switch and the unit is operating.

Applications include hazmat/emergency management situations, fire management, and temporary meteorological surveys. The system is compatible with NOAA designed CAMEO/ALOHA Plume Modeling Software.

The basic system includes sensors for wind speed, wind direction, and temperature. Various other sensor options include, but are not limited to, relative humidity, barometric pressure, solar radiation, and precipitation. Two auxiliary channels are available for integration with gas monitoring sensors or other non-meteorological parameters.

The 255 Series Evaporation Stations are complete systems used to measure the amount of water lost each day to evaporation. There are two commonly used procedures for making these measurements. In both, a U.S. National Weather Service Class A Evaporation Pan, 10 inches deep and 47.5 inches in diameter, holds the water and is normally installed on a wooden platform set on the ground in a grassy location.

One alternative for measuring the daily evaporation loss is to use a graduated hook gauge set on a stillwell to determine the water level in the pan. The hook gauge is adjusted until the point just breaks the water surface, and a reading is taken from the attached scale. The second alternative uses a stillwell with a fixed point. Each time a measurement is taken, the pan is refilled to the level of the point using a calibrated graduate. The graduate has a surface area of 1/100 that of the pan, so that the amount of water added is the equivalent evaporation. The choice between these alternatives is generally made on a practical basis, such as the availability of daily replacement water.

For automated systems, we offer the 255-100 Analog Output Evaporation Gauge. The sensor consists of a float, pulley, and counterweight attached to a precision 1000-ohm potentiometer mounted through a gear assembly in a weatherproof housing. The potentiometer produces a resistance output proportional to the position of the float which can be monitored on site using a data logger or a strip chart recorder, or monitored remotely by telemetry equipment.