Minimet Brochure

8/3/2019 Minimet Brochure

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e n v i r o n m e n t a l a n d b o t a n i c a l i n s t r u m e n t a t i o n

Automatic Weather Station

Meteorology

Data Display

Remote Data Collection

MiniMet


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Pest & Disease Forecasting

Commercial Growers

Horticulture

Plant Research

Animal Studies

Agronomy

Agricultural & Crop Research

Yield & Harvest Prediction

Sunshine Hours

Degree Days

Megajoules per Day

Irrigation SchedulingSkyeLynx Standard

Supplied free with all systems. An

easy-to-use program forcommunicating with your MiniMet

SkyeLynx AutoAutomatically connects with yourMiniMet and downloads the data

at pre-set times. Data isautomatically stored in a file on

your PCUp to 25 MiniMets can be

accessed by the program, thesettings for each are stored inindividual instrument profiles

Automatic Weather

with


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The Skye MiniMet is a modularmulti- channel weather station for

environmental monitoringChoose only the sensors you need -

up to 12

Ready configured on arrival. Nocomplicated setup routines. Sensors

just plug in - no complicatedwiring up

Choice of communicationlinks including GSMcellular phone

Extremely portable which makes theMiniMet ideal for short-term

research or monitoring projects

Supplied with SkyeLynx Standard,an easy-to-use communications

package for offloading data as asimple ASCII file. This can then be

imported into commercialspreadsheet packages

Optional softwares offered areSkyeLynx Auto for automaticallydownloading data at preset times,and SkyeLynx Deluxe, a powerful

graphing program

Compatible with many 3rd partysoftware programs

Features a real-time clock andconventional calendar. Readingscan be synchronised with other

stations

MiniMet is completely weatherproofand no extra enclosures are required

Low cost with no hiddenextras, yet utilises precision

components and sensors


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DATA LOGGERThe heart of the MiniMet and mounted on a bracket. Other sensors plug intothis enclosure

ANEMOMETERA highly sensitive and robust instrument, yet small and light weight.Low threshold speed and good repeatability

WIND VANELow threshold for sensitivity at low wind-speeds. Robust bearings forlong life

PYRANOMETER SENSOR - (Total Solar Radiation)PAR QUANTUM SENSOR, UVA, UVB, UVI SENSORSHighly specified sensors with excellent long-term stability. Cosine- corrected sothat reliable, repeatable measurements are obtained which can be compared withother sensors

BAROMETER (AIR PRESSURE SENSOR)A high quality transducer, robust and reliable. Choice of two models

SOIL TEMPERATURE PROBESimple yet very precise method of measuringthis parameter

SURFACE WETNESS SENSORGold-plated for minimum corrosion

TENSIOMETERAccurate method of determining

the moisture content of the soil

Plus Your Choice of Sensors

RELATIVE HUMIDITY & AIR TEMPERATURESensing elements are located within the protecting screen, so that airhumidity & temperature are measured without the effect of the sun. Dishesof the screen are designed so that reflected heat from the ground or othersources is not measured

RAINGAUGEUses the well-documented

tipping bucket type.


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...... with a GSM modem link

This option can give you 24 hour access to your Skye Software to call up your MiniMet. A single clickmeteorological data from anywhere in the world. With of the mouse will initiate the call to your weatherthe addition of the SkyeLynx Auto software, the whole station and once the call is connected, you can use allroutine can be completely automated. the functions of your weather station as though you

were sitting next to it - offload data, clear memory, alterThe Skye GSM link uses Vodafone, T-Mobile or Orange

setup parameters etc.digital mobile 'phonenetworks in the UK to permit Unfortunately, a mobile phone requires rather morethe control and offloading data power than to run the MiniMet itself. But in mostfrom MiniMet weather applications enough power is available from a smallstations. Overseas systems solar panel for self-contained auto-simply require a GSM network rechargewith a data service.

The GSM Link has electronics built inA major advantage of this type to protect the system from low powerof installation is that the and power loss situations. If a solarMiniMet station can be panel is not appropriate and mainsentirely remote from the user,

power is not available, then operationand there can be more than times are maximised by use of aone user contacting the station. switch on' device for the modemFor example the MiniMet could within the Skye GSM link electronics.be in Wales, but it could be This facility switches on the modemtelephoned from 2 miles away, for a user selected period.200 miles away or 2, 000 milesaway (provided there is acellular phone signal at the MiniMet site).

Operation is very simple. A standard hardwaremodem is required in your PC and this is used by the

COMMUNICATING WITH YOUR MINIMET

...... with a laptop PCVisit the MiniMet and connect the data-lead, which is supplied with the system,between the RS232 socket on the MiniMet and your laptop. The SkyeLynx Standardsoftware, which is also supplied with the system, is then run and you are able to

download data and change the setup if you wish.

...... with a permanent cable linkThis option is popular in sites where there is a mains power supply available and thedistance between the MiniMet and the desktop PC is no more than 1km. It is oftenpreferable to bury the cable, as small mammals find cables very tasty to eat!

...... with a line-modem linkIdeal if there is a mains power supply and telephone point available at the MiniMet

site, and users wanting to contact the weather station live many miles away A usefuloption for multi-user access.


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MINIMET SPECIFICATIONS

The System

Datalogger Housing

Connections

Power

ResolutionCommunications

Memory

Sample & Logging TimesModes

30 Minute Records 24 Hour summaries

Clock

Sensor Choice

Operating range

Relative Humidity, Air temperature, Solar Radiation (Pyranometer), Windspeed, Wind direction, Rainfall, AirPressure, Soil Temperature, Tensiometers, Surface Wetness, PAR Quantum, UVA, UVB, UVIUp to a maximum of 12 channels. Sensors can be added at a later date20 to +70C. Storage -35 to +70C.

Grey ABS sealed to IP 65

Dimensions 120 x 120 x 105mm.Binder subminiature type 8 and 5 pin. Sealed to IP 65 when mated with a plug or blanking cover (cover forRS232 port supplied as standard)Standard units have 6 x 'C' cell batteries giving a typical 4-6 month battery life. Solar power/mainspower options are available to extend battery life, depending on the system chosen15 bits A/D Converter

Storage in battery backed RAM capacity for up to 27,000 recordings (depending on number of channels beingmeasured) plus time of data being recorded as standard. Channels can be on or off as required. 1Mbit RAM

The MiniMet is supplied "ready-to-go". It is set in a standard 'default operating mode, but the user may at any timereconfigure the channels and the measuring/recording intervals.

Date & Time. Location I/D Date/Time, Location I/DMean Air Temperature Average/maximum, minimumMean Relative Humidity Air temperatureMean Solar Radiation Relative HumidityMean Wind Speed Wind SpeedMean Wind Direction Wind DirectionRainfall in last hour Pressure

Solar RadiationTotal rainfall

All units have a real time clock to synchronise the timing of readings between several MiniMets.

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RS232C will connect to any computer type with RS232 and communications software via a direct cable link or modem.. Units are supplied with a cable suitable for connection to the communications port of any IBM PC or compatible

computer). All units are supplied with the "SkyeLynx Standard communications program

Each channel can be individually configured from a choice of 10 seconds up to 12 hour intervals including averaging

POWER SUPPLY OPTIONS

BATTERY POWER (Standard Option)

SOLAR POWER (Optional)

MAINS POWER (Optional)

Skye MiniMet loggers are fitted with Duracell alkaline batteries as standard. These will have a lifetime of 4-6 monthsdepending on operating temperature, frequency of logging and data download. These batteries are an operationalpower source only, all data and logger configuration is stored by a lithium battery backed RAM chip, unaffected bythe state of the operational power supply.

The ACC/5 Solar Hog solar power supply is designed for use with a MiniMet logger. It consists of a small solarpanel, trickle rechargeable batteries, waterproof enclosure and pole mount and fixings. (The pole mount can be boltedto a wall or vertical surface if preferred.) The Solar Hog powers the logger through the RS232 socket and so has itsown RS232 socket for downloading data without interruption of the power supply. This option is ideal for remoteinstallations visited occasionally for download with a laptop PC.If the GSM system is purchased then a larger solar power option replaces the ACC/5 Solar Hog

a) Maximum 50m distance between mains supply and loggerThe ACC/9 Mains Hog consists of a voltage transformer which runs off mains power (please specify 110V or 220V)and provides a 12V supply to the logger. The Mains Hog itself is installed indoors (for safety reasons) and only the12V power cable runs outdoors to the logger. This cable has 2 purposes, to take the 12V power to the logger, and alsoto act as a data transfer cable. The 12V cable plugs into the logger's RS232 socket (the logger's internal alkalinebatteries remain installed to provide backup in case of power failure). The indoor Mains Hog also has a RS232 socketwhich connects to the PC, (using the standard data cable supplied with the logger) for data transfer. This means thatthe logger can be easily accessed from the PC at any time.B) Maximum 1km distance between mains supply and loggerThe ACC/9B Mains Hog with Signal Boosters is similar to the standard Mains Hog but also has provisions forovercoming low data signals and voltage drop over long cable lengths. In this case the Mains Hog has rechargeablebatteries fitted to provide back up in case of power failure, and the logger's internal alkaline batteries are removed.The Mains Hog is again installed indoors next to a PC plus a second unit is located out at the logger installation(which plugs into the logger's RS232 socket) to provide a boost to the return data signals. The dual purpose power /

data cable runs between the two as before.


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environmental and botanicalinstrumentation

T H O U S A N D S O FC U S T O M E R S I N O V E R O N E

H U N D R E D C O U N T R I E S

Skye is a family run companyand since 1983 has been exporting

instruments to nearly every country

in the world. We pride ourselves on

customer care and our flexibility

when it comes to providing the

customer with what they need.

Uni t s des igned and bu i l t i n Wa les

ACCESSORIESRadiation screen for RH/Temperature (SKRS 085S, SKRS 085D)

Levelling Unit and pole mount for Light Sensor (SKM 221/226)

Dual arm pole mount for wind sensors (ACC/12)

Levelling base plate for Raingauge (RGB1)

MAST

UV stable ASA white polymer plus "V" bolts for fixing to pole

Levelling Unit: anodised aluminium with plastic fixingsPole Mount: Stainless steel painted gloss white with "Vbolts for fixing to pole

Aluminium painted gloss white

1All of the sensors offered for use with the MiniMet are designed to mount on a 1 / " (38mm)2diameter mast, except for the raingauge which is mounted near the base of the MiniMet mast.To accommodate individual customers needs in the best way, several mast options are offered -please enquire.

Aluminium base plate with stainless steel and plastic fasteners

YOUR CHOICE OF MINIMETSSDL 5200SDL 5250SDL 5300SDL 5350SDL 5400SDL 5450

YOUR CHOICE OF SENSORS FOR THE MINIMETRELATIVE HUMIDITY (SKH 2060/I, SKH 2065/I, SKH 2070/I)Housing

Sensor typeMeasurement rangeResolution /accuracyAIR TEMPERATURE

Housing

LIGHT SENSORSPYRANOMETER (SKS 1110/I), QUANTUM (SKP 215/I) , UVA(SKU 420/I) , UVB(SKU 430/I),

UVI (SKU 440/I)HousingDetectorAccuracyCalibration

ANEMOMETER (Windspeed) (A100R/I)HousingStarting Speed (Threshold)Maximum WindspeedAccuracyWIND VANE (Wind Direction) (W200P/D1/I)HousingAccuracy

RAINGAUGE(ARG 100/I or 10000E/I)

HousingTypeTip SensitivityAIR PRESSURE (SKPS 800/I)RangeResolution / error

SOIL TEMPERATURE PROBE (SKTS 200/I)Housing

SensorResolution / accuracyTENSIOMETER (SKT 600 - 650/I)Measurement Range

Shaft LengthSensor TypeLong-term StabilitySURFACE WETNESS SENSOR(SKLW 1900/I)

4 sensors5 sensors6 sensors7 sensors8 sensors9 sensorsPlease contact Skye if you require a MiniMet for 10 sensors or more

Mounted in a machined PTFE head located at the top of a painted

aluminium tube. Protected from dust particles, etc. by 32 micronstainless steel gauze. (Optional cover for protection against smallerparticles e.g. Salt spray or dust)Capacitive silica substrate, chrome alloy electrodes0-100% (at -20 to +70C)Resolution: 0.1% Accuracy: 2% maximum typical 1% or better

Precision 10k thermistor (Fenwal) sealed to IP67. Low thermal mass.Resolution: 0.01C Accuracy: 0.2 at 25C ORPrecision PT100 fully sealed to IP67Resolution: 0.01C Accuracy: 0.15Located alongside the humidity sensing element to measuretemperature of the same air sample as RH% measurements

Fully sealed to IP68. Cosine-correctedSilicon, GaP or GaAsP5% maximum, typical 3% or better

Resolution b Absolute error at 20C and1000mbar t Error over 0-50C, typically 1.5 bar (maximum 3.6mbar)

Resolution Accuracy

0-850 hPa (0-850mbar)

Against transfer standard thermocouple traceable to NPL &UK Met. Office standards

Anodised aluminium alloys, stainless steel and weather resistant plastics0.3m/sOver 75m/s

2% + 0.1m/s

Anodised aluminium alloy and stainless steel2% obtainable in steady winds over 5m/s

Vacuum formed from UV resistant plastic or anodised aluminiumTipping bucket0.2mm of rain as standard - 0.1mm and 0.5mm also available

500mbar to 1050mbaretter than 0.1mbar.

ypically 0.5mbar (maximum 1.0mbar).

Sensor located at the end of a 3m length of screened cable andcompletely sealed against water ingressPrecision 10K thermistor (Fenwall) sealed to IP68

0.01C. Less than 0.2 error at 25C

User definedLow pressure transducer, stabilised for temperature & linearity0.1% typically

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