Weather MicroServer


  • Overview
  • Protocols
  • Additional Sensors
  • Monitoring
  • Communication

Weather MicroServer – Internet-Ready Weather Monitoring and Industrial Protocols

MicroserverFTP output (XML and CSV) • XML web service • Internet browser user interface

SNMP, Modbus/OPC and RTU, and DNP3 communication protocols are standard for industrial applications.

Compatible with CWOP (Citizen Weather Observer Program) and Weather Underground, the MicroServer can automatically post data from your weather station to these network websites.

The Weather MicroServer has datalogging capability. It connects to your network with an included Ethernet cable.

Two serial ports offer interface to both the Weather Display Console and additional peripheral devices or sensors such as Solar Radiation, Visibility, and the Orion LT Wind-Only Sensor Module.

The Weather MicroServer can provide real-time weather data to WeatherMaster Software over the network. This allows users to simultaneously monitor the weather using WeatherMaster on any computer connected to the network.

"Thank you for the follow-up email regarding the new features implemented in the MicroServer ... They are working wonderfully. I will not hesitate to contact you in the future with needs we might have for the weather station. You and your team have done an excellent job." ~Environmental Engineer, US Ecology Idaho

The Weather MicroServer interfaces with any of CWS's weather stations to provide a range of meteorological parameters and monitoring options, including portable and vehicle-mount configurations.

Click here to look at possible weather stations.

Click here for meteorological parameters measured and calculated.

PDF Downloads


Microserver Diagram


 

Weather MicroServer

The powerful Weather MicroServer provides FTP output, as well as a browser user interface for network applications. It includes two serial communication ports and datalogging capability.

  • 200 MHz ARM9 Processor
  • 32 MB SDRAM, 512 MB Flash Memory
  • 2 Communication Serial Ports, 1 Ethernet Port
  • Footprint Dimensions: 6.375" W x 2.55" H x 5.30" D

 

The parameters monitored depend on the weather station to which the MicroServer is connected.

Possible measurements and calculated parameters include:

Wind Speed & Direction

  • Wind Speed
  • Raw Wind Direction
  • Adjusted Wind Direction
  • 3 Second Rolling Average Wind Speed
  • 3 Second Rolling Average Wind Direction
  • 2 Minute Rolling Average Wind Speed
  • 2 Minute Rolling Average Wind Direction
  • 10 Minute Rolling Average Wind Speed
  • 10 Minute Rolling Average Wind Direction
  • 10 Minute Gust Wind Direction
  • 10 Minute Gust Wind Speed
  • 10 Minute Gust Time
  • 60 Minute Gust Wind Direction
  • 60 Minute Gust Wind Speed
  • 60 Minute Gust Time

Precipitation

  • Rain Today
  • Rain this week
  • Rain this month
  • Rain this year
  • Rain Intensity*
  • Rain Duration
  • Hail**
  • Hail Duration**
  • Hail Intensity**

Relative Humidity

Visibility

  • Visibility
  • Daylight (Lux)
  • Extinction Coefficient

Temperature

  • Temperature 1
  • Temperature 2*
  • Temperature 3*
  • Temperature 4*
  • Average Temperature Today
  • Degree Days
  • Wet Bulb Temperature

Barometric Pressure

  • Raw Barometric Pressure
  • Adjusted Barometric Pressure

Calculated Parameters

  • Wind Chill
  • Heat Index
  • Dew Point
  • Density Altitude

Solar Radiation

Air Quality Parameters

  • Wet Bulb Globe Temperature
  • Saturated Vapor Pressure
  • Vapor Pressure
  • Dry Air Pressure
  • Dry Air Density
  • Wet Air Density
  • Absolute Humidity
  • Air Density Ratio
  • Adjusted Altitude
  • SAE Correction Factor

* Available only with Capricorn 2000 Weather Stations ** Available only with Orion Weather Stations

SNMP - Simple Network Management Protocol

The Weather MicroServer has a built-in SNMP interface for communication with network management systems.

Orion LX MIB file (text)

 

Modbus/OPC

The Weather MicroServer has built-in Modbus TCP/IP and Modbus RTU interfaces for communication with industrial automation systems and OPC servers.

Modbus RTU is available through an RS-232 Port (COM2). For RS-485 interface, a converter is available.

Modbus Point List (PDF)

Modbus Point List (Excel)

Modbus OPC Client (PDF)

We offer the KEPServerEX Modbus OPC Server Suite to provide OPC Data Access.

Kepware

 

DNP3 - Distributed Network Protocol

The Weather MicroServer offers DNP3 ethernet communication to interface CWS weather stations with process automation systems used primarily in utilities such as electric and water companies.

DNP3 Parameter Index List (pdf)

DNP3 Parameter Index List (xls)

Additional Information including system diagram:

XML

The Weather MicroServer serves an XML page that contains current weather parameter values.

XML output example

 

FTP

The Weather MicroServer can use FTP to upload XML and CSV files to a web site at 15 second intervals.

Web page example

XML output example

Text output example

 

Two serial ports offer interface to additional peripheral devices or sensors. Click below for additional information on the available sensors: 

Solar Radiation

Catalog No. 82601: The pyranometer or solar radiation sensor is calibrated to measure the shortwave radiation reaching the Earth's surface, measured in Watts per square meter. Self-cleaning dome-shaped head prevents water accumulation. Sensor head is potted solid to prevent internal condensation in humid environments.

Cosine Response: 45° zenith angle ± 1%, 75° zenith angle ± 5%
Absolute Accuracy: ± 5%
Uniformity: ± 3%
Repeatability: ± 1%
Output Responsivity: 0.200 mV per W/m²
In full sunlight: 220 mV (1,100 W/m²)
Linear Range: 0 - 350 mV (0 - 1,750 W/m²)
Sensitivity: Custom calibrated to exactly 0.5 W/m² per mV
Input Power: 5 volts DC
Operating Environment: - 40 to 55 °C; 0 to 100% relative humidity. Designed for continuous outdoor use.
Materials: Anodized aluminum with acrylic lens
Dimensions: 2.4 cm diameter, 2.75 cm high

Includes mounting bracket and 50-foot cable.

  Solar Radiation Sensor
 

Catalog No. 82604: The Hukseflux LP02 pyranometer serves to measure the solar radiation flux that is incident on a plane surface in W/m² from a 180 degrees field of view (also called "global" solar radiation). Working completely passive, using a thermopile sensor, LP02 generates a small output voltage proportional to this flux. Contrary to photodiode-based- and "black and white" instruments LP02 has a spectrally flat response across the full solar spectrum.

ISO classification: second class
Spectral range: 305 - 2800 nm
Sensitivity (nominal): 15 µV/ W/m²
Temperature range: -40 - +80 °C
Range: 0 to 2000 W/m²
Temperature dependence: < 0.1%/°C
Calibration traceability: WRR

Includes amplifier and 50-foot cable. Optional mounting brackets available.

   Hukseflux LP02 second-class solar radiation sensor
 

Catalog No. 82603: This Kipp and Zonen CMP 3 thermopile sensor construction measures the solar energy that is received from the total solar spectrum and the whole hemisphere (180 degrees field of view). The output is expressed in Watts per meter square.

Rated ISO 9060:1990 Second Class, it is intended for shortwave global solar radiation measurements in the spectral range from 300 to 2800 nm. The thermopile detector measures irradiance up to 2000 W/m² with response time <18 seconds and typical sensitivity 10 µV/W/m² that varies less than 5 % from -10 ºC to +40 ºC.

Operating temperature range is -40 ºC to +80 ºC and the stability is better than 1 % per year.

The CMP 3 pyranometer features a snap-on white sun shield, integrated leveling and a weatherproof connector which is supplied pre-wired with 10 m of signal cable for simple installation.

Spectral range: 300 to 2800 nm
Sensitivity: 5 to 20 µV/W/m²
Response time: 18 s
Zero offset A: < 15 W/m²
Zero offset B: < 5 W/m²
Directional error (up to 80 ° with 1000 W/m² beam): < 20 W/m²
Temperature dependence of sensitivity (-10 ºC to +40 ºC): < 5 %
Operating temperature range: -40 °C to +80 °C
Maximum solar irradiance: 2000 W/m²
Field of view:180 °

Includes amplifier and 10-meter (~33 ft) cable. Optional mounting brackets available.

   Kiipp and Zonen CMP3 second-class compliant solar radiation sensor
 

Catalog No. 82609: The Hukseflux SR20 is a pyranometer of the highest category in the ISO 9060 classification system: secondary standard. This solar radiation sensor is used where the highest measurement accuracy is required. It measures the solar radiation received by a plane surface, in W/m2, from a 180o field of view angle. SR20 secondary standard pyranometer enables you to attain the highest measurement accuracy and excels in demanding applications.

An external Acromag module amplifies the solar sensor output to higher voltages suitable to CWS’s Microserver inputs and applies individual sensors’ sensitivities. The Acromag also includes programmable relay control to turn on and off sensor heaters to minimize the effect of dew and ice.

ISO-9060 classification: Secondary Standard
Response time: (95%) < 3 seconds
Spectral range: 300 to 2800 nm
Sensitivity (nominal): 15 x 10-6 V/(W/m2)
Temperature range: -40 to +80oC
Irradiance range: 0 to 4000 W/m2
Thermal Offset-A: < 5 W/m2
Thermal Offset-B: < 2 W/m2
Direction error: < 10 W/m2
Temperature dependence: < ± 1.0% (-10 to +40°C)
< ± 0.3% (-30 to +50 °C) with in-situ polynomial process correction
Calibration traceability: to WRR
Expanded calibration uncertainty: 1.2% (k= 2)
Temperature sensor: 10 kΩ thermistor or Pt100
Heater: 12 VDC, 1 W

Includes 10-meter (~33 ft) cable. Optional mounting brackets available.

Catalog No. 82609-1: Acromag Amplifier for SR20

   Solar Radiation

Photosynthetically Active Radiation (PAR)

Photosynthesis is driven by the number of photons between 400 and 700 nm. This is called Photosynthetic Photon Flux (PPF) and is measured in μmol m-2 s-1 (micromoles of photons per square meter per second). PPF sensors are commonly called quantum sensors because a quantum refers to the amount of energy carried by a photon.

Accuracy: ± 0.5%

Uniformity: ± 3%

Repeatability: : ± 1%

   Photosynthetically Active Radiation Sensor

Visibility

Measures atmospheric visibility, also known as meteorological optical range (MOR) by determining the amount of light scattered by particles (smoke, dust, haze, fog, rain, & snow) in the air that passes through the optical sample volume. A 42-degree forward scatter angle ensures performance over a wide range of particle sizes.

An integrated, one-piece housing design keeps all cabling internal to the sensor for protection against the elements. The sensor housing is made from anodized aluminum and the enclosures are rugged, UV-resistant fiberglass rated to IP66.

Based on the proven experience of the NWS and FAA, the sensor uses a "look down" geometry to reduce window contamination and clogging from blowing snow. The windows use continuous duty anti-dew heaters.

Surge and EMI filtering on all power and signal lines help ensure uninterrupted service for the life of the sensor.

This equipment is in compliance with the essential requirements and other provisions of Low Voltage Directives 73/23/EEC and 89/336/ EEC as amended by Directive 93/68/EEC.

Installation and maintenance: A 1-1/2 inch IPS pipe or optional 1 inch IPS pipe flange located on the bottom of the Main Electronics Box mates with a user supplied pipe. Power and signal connections are made through waterproof cable glands to terminal boards in the Box.

Field Calibration: Connect the factory-supplied calibration fixture (included) and follow a simple procedure that takes less than 30 minutes. Annual calibration is recommended.

Optional:

  • External Hood Heaters - thermostatically controlled for protection in extreme snowy environments.
  • Photometer for Aviation applications - used to determine day/night condition for airport weather systems. Automatically switches between Koschmeider’s Law (Day) and Allard’s Law (Night) when this option is used. Outputs ambient light intensity in LUX as well as “D” for day and “N” for night. A low wattage heater on the inside of the window keeps dew from forming on the optics and an external hood reduces stray light. It installs on the mounting pole, just below the visibility sensor.
 

 Visibility Sensor

Features

  • 16 km (10 mile) visibility range
  • Proven 42-degree forward scatter angle
  • Ice-resistant "look-down" geometry

Specifications

Visibility Range: 30m - 16 km standard 
Extinction Range: 100 - 0.1863 km-1 standard 
Accuracy: +/- 10% RMSE 
Time Constant: 60 sec 
Scatter Angle: 42 deg nominal 
Source: 880 nm LED 
Output: Serial RS-232 
Power: 100-240 VAC, 24 VA Nominal 
Operating Temperature: -40 to 60 C 
Operating Humidity: 0-100% 
Protection: IP66 (NEMA-4X) 
Weight: 8 kg (18 lb) 
Dimensions: 889 mm W x 292 mm H x 305 mm D (35 in x 11.5 in x 12 in)
Mounting: Nominal 40 mm ISO pipe, 48 mm OD max
(1-1/2" IPS pipe, 1.9 inch OD max)

Temperature: Panel, Soil, Water or Ambient 

One or two temperature sensors can be connected directly to the MicroServer.

Range: -40 to +125° C (-40 to + 257° F)

Accuracy: ± 0.5° C ( ± 0.9° F)

Resolution: ± 0.1° C (0.1° F)

Specify Panel Temperature, Soil/Water Temperature, or Ambient Temperature Sensor.

   

Ultrasonic Wind Speed and Direction

Available as an additional sensor option, or as its own weather station - the Orion LT Wind Monitor.

Both wind speed and direction are measured using an advanced ultrasonic sensor. The sensor uses ultrasound to determine horizontal wind speed and direction. The array of three equally spaced ultrasonic transducers on a horizontal plane is an ideal design which ensures accurate wind measurement from all wind directions, without blind angles or corrupted readings.

The wind sensor has no moving parts, which makes it maintenance free. The measurement range for wind speed is from 0 to 135 mph (0 to 60 m/s) and for wind direction from 0 to 360°.

Wind Speed 
Range: 0-135mph (0-60 m/s) 
Accuracy: ±0.7 mph (+/-0.3 m/s) 
Resolution: 1 mph (1 m/s) 
Units Available: knots, mph, km/hr, m/s

Wind Direction 
Azimuth: 0-360° 
Accuracy: ±2° 
Resolution: 1° 
Units Available: ° Azimuth

Dimensions
Height: 139 mm (5.17")
Diameter: 127 mm (5.00")
Weight: 510 g (1.12 lbs)
Housing: IP65

  Ultrasonic Wind Speed and Direction Sensor

Tipping Bucket Rain Gauge

The tipping bucket electric rain gauge is composed of a complex spun collector funnel with a knife edge that diverts the water to a tipping bucket mechanism. For each tip, a magnet causes an electronic pulse that is recorded. The rainfall sensor is completely automatic - spent water drains out of the bottom of the housing, hence, the instrument requires no servicing. 

Accuracy: ±1% at 2 in./hr or less

Resolution: 0.01 inch

Heated rain gauge is available.

   Tipping Bucket Rain Gauge

The Weather MicroServer serves data to be viewed on the customer's system, and also can be used in conjunction with these additional monitoring options.


Color Weather Display Console

Industrial grade WVGA touchscreen displays current weather data, trends, min/max.

Computes and displays wind chill, heat index and other calculated parameters.

Seven-inch color LCD panel with 800 x 480 pixel resolution.

Available in desktop/wall-mount chassis, 19" rack mount, or panel mount.

Read more here.

 

 Weather Display

Computer Weather Monitoring Software

Weather Master™ is our proprietary software optimized for CWS weather stations. It provides computer weather monitoring, calculated parameters, graphing and trend displays, as well as automatic archiving of weather data, alarm notification, interface with CAMEO/ALOHA, and weather web page updates.

Read more here.

 

 

Weather Master Software


Standard RS-232 Serial Communication Cable

A standard 7-foot serial communication cable connects the Interface or Control Module to the MicroServer. A standard 7-foot ethernet cable connects the MicroServer to the Network. Extra length RS-232 cable is available up to 200 feet, catalog number 8233.

For lengths from 200 to 4000 feet, refer to the RS-485 Short Haul Modem option below.

Standard system diagram below shown with Orion Sensor.

 

Weather MicroServer Standard Configuration

 

Wireless Transceivers – 2.4 GHz and 900 MHz

Wireless transceivers offer a cable-free means to remotely monitor weather information when hardwire installations are not feasible or practical.

For fixed-mount weather stations, 2.4 GHz and 900 MHz wireless transceiver options offer outdoor line-of-site range at one mile and 20 miles, respectively.

One transceiver is housed in the weatherproof enclosure near the sensor module. A secone transceiver is connected to the Interface Module at the data display site, which then is connected to a Weather Display Console and/or computer.

These stations require power at the site of the weatherproof enclosure. This power can be AC, battery or solar. 

A wireless weather station system configuration would include the weather station itself with display or software, plus a weatherproof enclosure and transceivers.

Certifications

2.4 GHz: FCC (USA), IC (Canada) and ETSI (Europe).
900 MHz: FCC and IC 

Wireless system diagram below shown with Orion Sensor.

 Weather MicroServer Wireless Diagram

 

2.4 GHz Wireless Transceiver
2.4 GHz Model, Catalog Number 8245

900 MHz Model, Catalog Number 8255

 

RS-422 (Short Haul) Converter Set

Catalog Number 8247-2

Two short haul modems are used to extend the RS-232 range from 200 feet to 4000 feet.

Includes power supplies.

Order cable by the foot, catalog number 8230.

RS-422 system diagram below shown with Orion Sensor.

Weather MicroServer RS422 Diagram

 

 

GSM Modem

Catalog Number 8403

SMS interface -- text “weather” and receive a text message report from the weather station. Utilizes a Sierra Wireless AirLink GX400 modem, shown below in a weatherproof enclosure. Can be added to standard MicroServer system and can be retrofitted to existing systems.

Optional weatherproof enclosure, catalog number 88160.

 GSM Modem in Weatherproof enclosure

 

GSM Modem for text weather report

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