The Weather MicroServer is a hardware component that interfaces with any of CWS's weather stations to provide Internet and industrial protocols for weather monitoring.
Scroll down for list of meteorological parameters measured/calculated.
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 offers a variety of Internet and industrial protocols for automated reporting via computer or industrial automation system.
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.
The powerful Weather MicroServer provides FTP output, as well as a browser user interface for network applications. It includes three serial communication ports and datalogging capability.
The parameters monitored depend on the weather station to which the MicroServer is connected.
* Available only with Orion Weather Stations
The Weather MicroServer has a built-in SNMP interface for communication with network management systems. SNMP versions 2 and 3 are supported. SNMPv3 interface incorporates SHA1 authentication and AES or DES encryption option with a user definable user name and password.
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.
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.
Additional Information including system diagram:
The Weather MicroServer serves an XML page that contains current weather parameter values.
Two serial ports, as well as up to eight analog channels, offer interfaces to various additional peripheral devices or sensors. Click below for information on available sensors:
The Carbon Dioxide (CO2) Sensor uses an infrared light source to measure ppm-level carbon dioxide. The sensor is configured for analog output.The sensor is installed in a self-aspirating radiation shield to protect it from the effects of solar radiation. The sensor should be installed in a location that represents ambient atmospheric CO2 levels.
Measurement Range: 0 – 1000 ppm CO2
Accuracy: (including repeatability and non-linearity): ±40 ppm CO2 at 77 °F and 29.91 inHg
Output: 0 – 2.5VDC
Operating Temperature: -40°F to +140°F (-40°C to +60°C)
Operating voltage: 12 - 30 VDC
Power consumption: 0.4 W in continuous operation
The Ultrasonic Snow Depth Sensor transmits an ultrasonic pulsed sound wave through the air to meet a reflective object, such as snow. When the sound wave makes contact with the target it bounces back toward the sensor. The sensor records the time required for the sound wave to travel to the target and return. Using the speed of sound, the sensor calculates the distance to the object. Uses an analog channel.
Designed for a wide range of high-end atmospheric pressure measurement (specifically aviation), this dual silicon capacitive, absolute pressure sensor provides high accuracy and excellent long-term stability. Select Class A or Class B, both of which come with NIST traceable, factory calibration certificates. The MicroServer reports the two (redundant) pressure readings, the difference between them, and calculated QNH and QFE based on average value of the two sensors. Requires a serial port.
Range: 500 - 1100 hPa
Hysteresis: ±0.03 hPa
Repeatability: ±0.03 hPa
Operating Temperature Range: -40 to +60°C (-40 to +140°F)
Serial I/O: RS232C
Long-Term Stability: ± 0.1 hPa/year
Housing Classification: IP66
|Class A||Class B|
|Linearity:||±0.05 hPa||±0.10 hPa|
|Calibration uncertainty:||±0.5 hPa||±0.15 hPa|
|Accuracy: at +20 C(+68 F)||±0.5 hPa||±0.20 hPa|
|Total Accuracy:||±0.15 hPa||±0.25 hPa|
(Please note: While CWS weather stations are not FAA certified, they are used by many small airports in the US and around the world that are not subject to FAA certification.)
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. Uses one analog channel per sensor.
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.
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. Uses one analog channel per sensor.
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.
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. Uses one analog channel per sensor.
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.
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. Uses one analog channel per sensor.
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
Measures UV radiation between 250 and 400 nanometers. The measurement includes both UV-A and UV-B radiation to provide a total combined measurement. The self-cleaning dome-shaped head prevents water accumulation. The sensor head is potted solid to prevent internal condensation in humid environments. Uses one analog channel.
Accuracy: ± 10%
Uniformity: ± 5%
Repeatability: ± 1%
Long Term Drift: <3% per year
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. Uses one analog channel.
Accuracy: ± 0.5%
Uniformity: ± 3%
Repeatability: : ± 1%
A laser optical sensor is used to detect and measure particulate concentrations up to 100 milligrams per cubic meter. The continuous flow optical sensor is combined with purge air to ensure accurate measurements in adverse environments. The optical sensor is enclosed with matched electronics and sensor display. Built-in calibration function is included.The standard unit is supplied with an internal flow system in a rugged weatherproof housing. Inlet assembly includes a built-in heater to prevent moisture penetration and a size selected inlet to allow particle passage without allowing foreign matter to penetrate. Power for the heater is regulated, and is only used when moisture is detected. Requires serial port.
Range: 0-100 mg/M3
Sensitivity: 0.001 mg/ M3
Accuracy: ± 5% to traceable standard with .6 um PSL
Display: LCD Display provides information on operation including: power, heater power, flow operation, status and concentration.
Flow Rate: 2 liters minute
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.
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)
The Visibility Sensor utilizes the forward scatter technology for visibility measurements. Uses one serial port.
Visibility Measurement: 33 to 104,985ft (10 to 32,000m)
Accuracy up to 10,000m: ±10%
Accuracy over 10,000m: ±20%
Operating Temperature: -25°C to +60°C
Power Supply: +12VDC
Visibility Sensor (Low Power)
Catalog Number: 82620-10
One or two temperature sensors can be connected directly to the MicroServer. Uses one analog channel per sensor.
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.
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°. Requires one serial port.
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
Units Available: ° Azimuth
Height: 139 mm (5.17")
Diameter: 127 mm (5.00")
Weight: 510 g (1.12 lbs)
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.
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.
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.
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.
Connection options between sensor head and Weather MicroServer. Click to expand for specific details.
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.
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 900MHz wireless transceiver options offer outdoor line-of-site range at one mile and 20 miles, respectively.
For the wireless Orion Weather Station, a transceiver is housed in a weatherproof enclosure near the sensor head. A single 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. The Orion sensor head requires significantly less power and is a good choice for solar or battery-powered operation.
A wireless weather station system configuration would include the weather station itself with display or software, plus a weatherproof enclosure and transceivers.
2.4 GHz: FCC (USA), IC (Canada) and ETSI (Europe).
900 MHz: FCC and IC
Wireless system diagram below shown with Orion Sensor.
2.4 GHz Model, Catalog Number 8245
900 MHz Model, Catalog Number 8255
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.
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.